File scan report
Verdict Suspicious
Is this PDF document safe? Treat it as suspicious.
MalwareTips staff checked this exact file and rated it Suspicious.
What to do now5 steps
This PDF may be a phishing lure. Opening it by itself is unlikely to infect your device; the risk is the links inside it.
What to do
Don't click links or buttons in this PDF, and don't enter a password on any page it opens.
Check with the sender using a phone number or email address you already have, not the details in this PDF.
If you typed a password after opening it, change that password now and turn on two-step verification.
If you entered card or bank details, call your bank using the number on your card.
If you already opened it
Stop using it, run a full scan with your antivirus and watch for unexpected behavior or security alerts.
Not sure what to do?
Ask the MalwareTips community before you run it. If you already ran it, follow the cleanup guide.
- Ask for free help on the MalwareTips forumWindows malware removal help, answered by volunteers. (opens malwaretips.com in a new tab)
- Remove malware from WindowsStep-by-step cleanup with free tools. (opens malwaretips.com in a new tab)
Paste this report's link in your topic so helpers can see what was found.
We could not verify where the links in this PDF lead. It has the shape of a common phishing lure: a one-page proposal invitation seen from a single source. If it sends you to a sign-in page (Microsoft, Google, DocuSign or similar), do not enter your password.
Show the full noteShow less
Antivirus results
0 of 63 flagged
- Flagged 0
- No detection 63
- No result 12
- Code signing Not applicable
- Test run Completed
- First seen 5mo ago
Chapter 02
Why we think so
The written assessment behind the rating, checked against the scan evidence.
Staff assessment of this file
The decision below was made by staff for this exact SHA-256 hash.
Staff decision: see the note at the top of the report.
Where this verdict could be wrong1 caveat
- The staff decision applies to this exact SHA-256 hash; a different build requires a separate review.
These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.
6 sources checked · 5 complete · 1 partial. 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- 16sandbox rule tags
- 7spawned processes
- 2network contacts
- 25filesystem & mutex artifacts
What the test run showed
What the file did on a test computer
Confirmed in the test run
Moderate concern: Checked whether it was running on a test computer.
Moderate concern: Hid files or windows on the test computer.
Note: Read the user name of the test computer.
Note: Talked to servers over the internet during the test run.
Note: Read basic details of the test computer, such as its Windows version.
Note: Checked which security software was installed on the test computer.
Sandbox labels we could not confirm (common in safe files too)
Not confirmed: A sandbox rule tagged this run as password-store access, but nothing touched the Windows password store.
Not confirmed: A sandbox rule tagged this run as code injection, but no injected program was recorded.
Not confirmed: A sandbox rule tagged this run as weakening security settings; no setting change was recorded.
This file was run on a test computer (a sandbox), not on yours. Labels we could not confirm are listed so you can see them, but they are not treated as evidence against the file.
Recorded behavior
What happened in the test
Grouped by step. The order is not a timeline.
- 1
Input file
The submitted object
- Evidence 1 of 7: FileSeen in the test run
PDF document
d905f6f48cbb8bb8d8da8b2a14b09f31e23acd8c6c9fbde99a95491179dab558
Uploaded file
- 2
Processes
What ran
- Evidence 2 of 7: ProcessSeen in the test run
mobsync.exe
C:\Windows\System32\mobsync.exe -Embedding
Test run - Evidence 3 of 7: ProcessSeen in the test run
Acrobat.exe
"C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe" "C:\Users\<USER>\Desktop\PDF document"
Test run - +1 more recorded observation
- 2
Files
Created or changed
- Evidence 4 of 7: Written fileSeen in the test run
acroNGLLog.txt
C:\Users\<USER>\AppData\Local\Temp\acroNGLLog.txt
Test run - Evidence 5 of 7: Written fileSeen in the test run
NGL
C:\Users\<USER>\AppData\Local\Temp\NGL\
Test run - +1 more recorded observation
- 2
Network
Hosts contacted
- Evidence 6 of 7: Contacted hostSeen in the test run
184.29.30.201
Contacted during the test run.
Test run - Evidence 7 of 7: Contacted hostSeen in the test run
23.22.254.206
Contacted during the test run.
Test run - +1 more recorded observation
7 facts from the test run. See the full activity list.
What this file did when executed
This file was run in a sandbox and its runtime behaviour was observed.
Techniques observed in the sandbox
16MITRE 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
- T1518· Checks your AV
- T1562· Disables security
- T1564· Hides artifacts
- T1564.003· Hides artifacts
- T1566.002
- 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 c0de53ca-f166-4b38-89ab-4780a127e731 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
Acrobat.exe"C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe" "C:\Users\user\Desktop\PDF document"
Network contacts
22 hosts, listed as 2 addresses. Links show the host and path only.
- IP address
184.29.30.201 - IP address
23.22.254.206
Files
18Files the file created, changed or deleted.
- Written
C:\Users\<USER>\AppData\Local\Temp\acroNGLLog.txt - Written
C:\Users\<USER>\AppData\Local\Temp\NGL\ - Written
C:\Users\<USER>\AppData\Local\Temp\TmpE92.tmp - Written
C:\Users\<USER>\AppData\Local\Temp\A9qjy75q_8vkj4l_4x8.tmp - Written
C:\Windows\ServiceProfiles\LocalService\AppData\Local\FontCache\Fonts\Download-1.tmp - Written
C:\ProgramData
Show all 18 entries for files
- Written
C:\Users\user\.ms-ad - Written
C:\Users\user\AppData\LocalLow - Written
C:\Users\user\AppData\LocalLow\Microsoft\RMSLocalStorage - Written
C:\Users\user\AppData\Local\Microsoft\RMSLocalStorage - Written
C:\Users\user\AppData\Local\Packages\adobe.acrobatreaderdc.protectedmode\AC - Written
C:\Users\user\AppData\Local\SolidDocuments\Acrobat\ - Written
C:\Users\user\AppData\Local\Temp - Written
C:\Users\user\AppData\Local\Temp\acrobat_sbx - Written
C:\Users\user\AppData\Roaming\Microsoft\Speech - 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
Registry and auto-start
2Settings 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
Mutexes
7Named locks a program uses so only one copy runs; malware families often reuse them.
Local\SyncServiceThreadLocal\SessionImmersiveColorMutexGlobal\_MSIExecuteGlobal\MSILOG_4ce7be391dce1b5GOL.b1211ISM_pmeT_lacoL_ataDppA_onurB_sresU_:CGlobal\AdobeCrashProcessorLocalLowLock\Sessions\1\BaseNamedObjects\{100184D2-BDC3-477a-B8D3-65548B67914C}_3504
Show all 7 entries for mutexes
\Sessions\1\BaseNamedObjects\Local\{100184D2-BDC3-477a-B8D3-65548B67914C}_716
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
162.159.36.2
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 partial. Complete means the check returned a usable result; it does not mean the file is safe.
File fingerprint
- File name
- PDF document
- Format
- Size
- 104.8 kB
- Code signing
- Not applicable to this file type
- Last analyzed
- May 12, 2026, 8:57 PM UTC
- SHA-256
d905f6f48cbb8bb8d8da8b2a14b09f31e23acd8c6c9fbde99a95491179dab558- SHA-1
eefac54390ef710172af234cca3a07b6b531fb4c- MD5
66257302ddfd482eeb93da32ceacacf9
First scanned Updated
Verdict history
- Suspicious
- Safeafter a re-check of the saved evidence
- Suspiciousclassified by MalwareTips staff
Ratings change when antivirus engines, our checks or MalwareTips staff learn more about a file.
Antivirus consensus
0 of 63 engines flagged this file
12 of the 75 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 75 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
- DeepInstinctNo result
- 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, or is it malware?
What is this PDF document?
How many antivirus engines detected this PDF document?
What should I do if I already opened this PDF document?
What is the SHA-256 hash of this PDF document?
How up to date is this analysis of this PDF document?
Community
Member reviews and reports for this exact file hash.