File scan report
Verdict Safe
Is this PDF document safe? Yes, no threats found.
None of the 63 antivirus engines that checked it flagged this PDF document, and opening it in a sandboxed PDF viewer showed only ordinary viewer activity with no high-risk…
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Moderate evidence · No engine flags it, but no publisher signature confirms who made it.
This PDF document can be opened if you expect it from the sender. Keep your PDF reader updated, and be careful with any links inside that ask for credentials.
Good practice2 tips
We found nothing harmful in this file.
Open it only if you trust the person or website it came from.
Keep your security software and system updates switched on.
No scanner can promise a file is 100% safe.
Reads the latest antivirus results for this file's hash. Nothing is uploaded.
Antivirus results
0 of 63 flagged
- Flagged 0
- No detection 63
- No result 11
- Code signing Not applicable
- Test run Completed
- First seen 2mo ago
Chapter 02
Why we think so
1 point against it and 3 in its favour, checked against the scan evidence.
The reasoning behind this verdict
When the document was opened in a PDF viewer under analysis, only the viewer and its helper processes ran, and no injection or suspicious network activity was recorded. The document is rarely submitted and was first seen on Jul 29, 2026.
None of the 63 antivirus engines that checked it flagged this PDF document, and every major antivirus engine returned a clean result. The sandbox runs show the document being opened by Adobe Acrobat and Reader, along with their crash-reporting and log helpers, which is normal viewer activity. The sandbox summary mapped two techniques, but no injected process or credential-store access was recorded, so those labels carry no weight. The only network contact was a public DNS resolver that belongs to the analysis machine's background traffic. The document is rarely submitted, and our own static review of its contents was not available, but nothing in the evidence points to a hostile document.
What We Detected
None of the 63 antivirus engines that checked it flagged this PDF document, including 18 major antivirus engines such as Kaspersky, BitDefender, ESET and Microsoft. It was first seen on Jul 29, 2026 and has been submitted by a single source.
Threat Behavior
In the sandbox runs, the document was opened in Adobe Acrobat and Reader. Only the viewer and its crash and log helpers ran, and they wrote ordinary temporary files. No process injection was recorded, and the only network contact was the analysis machine's own DNS background traffic. Two technique labels appeared in the summary without any supporting activity, so they do not indicate harmful behaviour.
What To Do Now
The document appears to be an ordinary PDF. As with any document, open it only if you expect it from its sender, and be careful with any links inside that ask you to log in or download files.
Where this verdict could be wrong1 caveat
- The document has been submitted by only one source, and our own static analysis of its contents was not available, so embedded links could not be reviewed.
These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.
- None of the 63 antivirus engines that checked it flagged it, including all 18 major antivirus engines.
- Opening it in a PDF viewer showed only normal viewer activity.
- No process injection or contact with a host belonging to the document was recorded.
- The document is rarely submitted, with only one source seen.
6 sources checked · 5 complete · 1 not needed or not applicable. See every source
Chapter 03
What it did in our test
It ran in our isolated test environment; no test environment rated what it did as risky.
Test run summary
Capture complete- 13sandbox rule tags
- 7spawned processes
- 0network contacts
- 34filesystem & mutex artifacts
What this file did when executed
This file was run in a sandbox and its runtime behaviour was observed.
Techniques observed in the sandbox
13MITRE ATT&CK techniques the sandbox mapped. Highlighted ones are rare in normal software; the others are common in legitimate programs too.
- T1003· Credential theft
- T1012
- T1033· Reads user info
- T1047
- T1055· Process injection
- T1071· Application protocol
- T1082· System recon
- T1203
- T1485
- T1497· Sandbox evasion
- T1564· Hides artifacts
- T1564.003· Hides artifacts
- T1573
Observed activity
Processes started
7Programs the file ran, with their command lines.
mobsync.exeC:\Windows\System32\mobsync.exe -EmbeddingAcrobat.exe"C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe" "C:\Users\<USER>\Desktop\PDF document"Adobe Crash Processor.exe"C:\Program Files\Adobe\Acrobat DC\Acrobat\Adobe Crash Processor.exe"CRWindowsClientService.exe"C:\Program Files\Adobe\Acrobat DC\Acrobat\CRWindowsClientService.exe" "C:\Program Files\Adobe\Acrobat DC\Acrobat" updatepvbpreference 37ebdc4a-3214-4be8-9688-afc25b8699e2 0 0CRLogTransport.exe"C:\Program Files\Adobe\Acrobat DC\Acrobat\CRLogTransport.exe" "C:\Program Files\Adobe\Acrobat DC\Acrobat" "C:\Users\<USER>\AppData\LocalLow\Adobe\CRLogs\crashlogs"CRLogTransport.exe"C:\Program Files\Adobe\Acrobat DC\Acrobat\CRLogTransport.exe" "C:\Program Files\Adobe\Acrobat DC\Acrobat" "C:\Users\<USER>\AppData\LocalLow\Adobe\CRLogs\dumps"
Show all 7 entries for processes started
RdrCEF.exec:\program files (x86)\adobe\acrobat reader dc\reader\acrocef_1\RdrCEF.exe --backgroundcolor=16514043
Files
27Files the file created, changed or deleted.
- Written
C:\Users\<USER>\AppData\Local\Temp\acroNGLLog.txt - Written
C:\Users\<USER>\AppData\Local\Temp\Tmp1056.tmp - Written
C:\Users\<USER>\AppData\Local\Temp\Tmp11CE.tmp - Written
C:\Users\<USER>\AppData\Local\Temp\A95e1ybm_1oggcri_tc.tmp - Written
C:\Users\<USER>\AppData\Local\Temp\A9husn0_1oggcrj_tc.tmp - Written
C:\Windows\ServiceProfiles\LocalService\AppData\Local\FontCache\Fonts\Download-1.tmp
Show all 27 entries for files
- Written
C:\Users\<USER>\AppData\Local\Adobe\Acrobat\DC\SOPHIA\Reader\SOPHIA.json - Written
C:\Users\<USER>\AppData\Local\Adobe\Acrobat\DC\SOPHIA\Reader\Files\TESTING - Written
Local\08471000 - Written
C:\Users\<USER>\AppData\LocalLow\Adobe\Acrobat\DC\ConnectorIcons\icon-260727155713Z-289.bmp - Written
C:\Users\<USER>\AppData\Local\Adobe\Acrobat\DC\UserCache.bin - Written
Local\0AB10860 - Written
C:\Users\<USER>\AppData\Local\Temp\A9jujrrp_xhtc6w_2bg.tmp - Written
C:\Users\<USER>\AppData\Local\Temp\A913tl7ow_xhtc6x_2bg.tmp - Written
C:\Users\<USER>\AppData\Local\Temp\Cab2B23.tmp - Deleted
C:\Users\<USER>\AppData\Roaming\Adobe\Acrobat\DC\JSCache\GlobSettings - Deleted
C:\Users\<USER>\AppData\Local\Packages\Microsoft.XboxGamingOverlay_8wekyb3d8bbwe\LocalCache\KnownGameList.bin - Deleted
C:\Users\<USER>\AppData\Local\Microsoft\GameDVR\KnownGameList.update - Deleted
C:\Users\<USER>\AppData\Local\Adobe\Acrobat\DC\SOPHIA\Reader\Files\DC_READER_LAUNCH_CARD - Deleted
C:\Users\<USER>\AppData\Local\Adobe\Acrobat\DC\SOPHIA\Reader\Files\ACROBAT_READER_MASTER_SURFACEID - Deleted
C:\Users\<USER>\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages-journal - Deleted
C:\Users\<USER>\AppData\Local\Temp\Cab2B23.tmp - Deleted
C:\Users\<USER>\AppData\Local\Temp\Tar2B24.tmp - Deleted
C:\Users\<USER>\AppData\Local\Temp\A913tl7ow_xhtc6x_2bg.tmp - Deleted
C:\Users\<USER>\AppData\Local\Temp\A9jujrrp_xhtc6w_2bg.tmp - Deleted
C:\Users\<USER>\AppData\Local\Temp\A91qv5jm6_xhtc6y_2bg.tmp - Deleted
C:\Users\<USER>\AppData\Local\Temp\A9gqfrgj_xhtc6z_2bg.tmp
Registry and auto-start
3Settings the file changed, including ways to start again after a restart.
- Deleted
HKEY_CURRENT_USER\SOFTWARE\Adobe\Adobe Acrobat\DC\AVGeneral\cAcrobatUpsellTracking\tTrackingParam - Deleted
HKEY_CURRENT_USER\SOFTWARE\Adobe\Adobe Acrobat\DC\AdobeViewer\ProductInfoCache - Deleted
HKEY_LOCAL_MACHINE\System\Acrobatviewercpp473
Mutexes
7Named locks a program uses so only one copy runs; malware families often reuse them.
Local\SyncServiceThreadLocal\SessionImmersiveColorMutexGlobal\_MSIExecuteGlobal\MSILOG_bfef20ba1dd1f2cGOL.94431ISM_pmeT_lacoL_ataDppA_onurB_sresU_:CGlobal\AdobeCrashProcessorLocalLowLock\Sessions\1\BaseNamedObjects\{100184D2-BDC3-477a-B8D3-65548B67914C}_5612
Show all 7 entries for mutexes
\Sessions\1\BaseNamedObjects\Local\{100184D2-BDC3-477a-B8D3-65548B67914C}_6632
Sandbox background — not the file
9The analysis machine's own processes and connections, recorded in every run.
- VM process
Explorer.EXEC:\Windows\Explorer.EXE - VM process
services.exeC:\Windows\system32\services.exe - VM process
svchost.exeC:\Windows\System32\svchost.exe -k NetworkService -p - VM process
svchost.exeC:\Windows\system32\svchost.exe -k UnistackSvcGroup - VM process
svchost.exeC:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s StorSvc - VM process
lsass.exeC:\Windows\system32\lsass.exe
Show all 9 entries for sandbox background — not the file
- VM process
svchost.exeC:\Windows\system32\svchost.exe -k LocalService -s W32Time - VM process
DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{133EAC4F-5891-4D04-BADA-D84870380A80} - VM host
8.8.8.8
Files this sample writes at runtime
This file drops 5 children at runtime. None are currently flagged malicious in our cache. 5 have no saved verdict and were not checked; that is missing coverage, not a finding.
- 2ebda85960d1cd23a8a3…bbba6cNot checkedno saved verdict
- 1c9a0c2010f1a14e44f9…363a30Not checkedno saved verdict
- 46c610edd97ed1771e64…4b3c5eNot checkedno saved verdict
- ff824d7d7ba880afc359…cc65c0Not checkedno saved verdict
- a5c6d4dbae668479ccb9…11631bNot checkedno saved verdict
Chapter 04
Technical details
None of the 63 antivirus engines that checked it flag it.
Sources checked
Every check behind this verdict
6 sources checked · 5 complete · 1 not needed or not applicable. Complete means the check returned a usable result; it does not mean the file is safe.
File fingerprint
- File name
- PDF document
- Format
- Size
- 193.4 kB
- Code signing
- Not applicable to this file type
- Last analyzed
- Jul 29, 2026, 10:30 PM UTC
- SHA-256
9959c82fa7ebb964a272c40bd833080864fcbe4c6abf3746a538a7a435f10f4a- SHA-1
fc716b7d0faffe907db153b326dd61d6f621e1a5- MD5
5611f68c0b7b328aa6f9a4f344a0c005
First scanned Updated
Verdict history
- Not fully confirmed
- Safeafter a re-check of the saved evidence
Ratings change when antivirus engines, our checks or MalwareTips staff learn more about a file.
Antivirus consensus
0 of 63 engines flagged this file
11 of the 74 engines returned no result for this file (file type not supported, or the scan did not finish), so they did not check it.
- Tier-118 engines0flagged
- Tier-233 engines0flagged
- Low-trust12 engines0flagged
View all 74 engine results
- AcronisClean
- AhnLab-V3Clean
- AlibabaNo result
- alibabacloudClean
- ALYacClean
- Antiy-AVLClean
- APEXNo result
- ArcabitClean
- AvastClean
- Avast-MobileNo result
- AVGClean
- AviraClean
- BitDefenderClean
- BitDefenderFalxNo result
- BkavClean
- CAT-QuickHealClean
- ClamAVClean
- CMCClean
- CrowdStrikeClean
- CTXClean
- CylanceClean
- CynetClean
- DrWebClean
- ElasticNo result
- EmsisoftClean
- ESET-NOD32Clean
- F-SecureClean
- FortinetClean
- GDataClean
- GoogleClean
- GridinsoftClean
- huorongClean
- IkarusClean
- JiangminClean
- K7AntiVirusClean
- K7GWClean
- KasperskyClean
- KingsoftClean
- LionicClean
- MalwarebytesClean
- MaxSecureClean
- McAfeeDClean
- MicrosoftClean
- MicroWorld-eScanClean
- NANO-AntivirusClean
- PaloaltoNo result
- PandaClean
- RisingClean
- SangforClean
- SentinelOneClean
- SkyhighClean
- SophosClean
- SUPERAntiSpywareClean
- SymantecClean
- SymantecMobileInsightNo result
- TACHYONClean
- tehtrisNo result
- TencentClean
- TrapmineNo result
- TrellixENSClean
- TrendMicroClean
- TrendMicro-HouseCallClean
- TrustlookNo result
- VaristClean
- VBA32Clean
- VIPREClean
- VirITClean
- ViRobotClean
- WebrootNo result
- XcitiumClean
- YandexClean
- ZillyaClean
- ZoneAlarmClean
- ZonerClean
Signatures and behavior heuristics
Low-severity pattern matches — worth noting but not on their own cause for alarm.
VirusTotal's sandbox summary maps this run to MITRE T1055 (Process Injection), but no injected process of the sample's own was recorded (the analysis VM's own WMI adapter, crash handlers and Chrome updater are not counted). VirusTotal maps T1055 on about half of all files no engine flags, so the mapping alone is not evidence of injection.
EvidenceT1055 (sandbox MITRE mapping)VirusTotal's sandbox summary maps this run to MITRE T1003 (OS Credential Dumping), but no process targeting LSASS or another credential store was recorded. VirusTotal maps T1003 on clean files more often than on detected ones, so the mapping alone is not evidence of credential theft.
EvidenceT1003 (sandbox MITRE mapping)
How widely this file has been seen
Rarely uploaded, and first seen more than two weeks ago. Often niche legitimate software or internal tooling; not a strong malware signal on its own.
Chapter 05
Questions & answers
Short answers to the 6 questions people ask most about this file.
Is this PDF document safe?
What is this PDF document?
How many antivirus engines detected this PDF document?
What is the SHA-256 hash of this PDF document?
Is it safe to open this PDF document?
How up to date is this analysis of this PDF document?
Community
Member reviews and reports for this exact file hash.