Is nanami.exe safe?
Only Bkav produced a generic detection among 75 engines, while tier-1 engines, runtime analysis, child inspection, and host checks supplied no malware corroboration.
The lone detection comes from Bkav and uses a generic label; no tier-1 engine detected the file. One completed sandbox run produced no malicious verdict, all observed network hosts lacked cached threat findings, and none of the ten inspected children was identified as malicious. The unsigned status warrants ordinary source verification.
3dd18257c7d4f191d5…e4e42174f7d690Recommended next actions
Before running
Run it only when it came from the developer's official site or another source you independently trust.
If you already ran it
Keep normal device protection enabled and stop if the file behaves unexpectedly.
Intelligence
The saved assessment, checked against the scan evidence and recorded coverage.
The reasoning behind this verdict
This section explains the evidence supporting the verdict and keeps conflicting or missing signals visible.
The lone detection comes from Bkav and uses a generic label; no tier-1 engine detected the file. One completed sandbox run produced no malicious verdict, all observed network hosts lacked cached threat findings, and none of the ten inspected children was identified as malicious. The unsigned status warrants ordinary source verification.
Only 1 of 75 antivirus engines flagged the sample, and that result was Bkav's generic low-trust label. Microsoft, Kaspersky, BitDefender, ESET-NOD32, Avast, and the other reporting tier-1 engines did not detect it. One sandbox run mapped T1486, but it returned no malicious verdict and found no persistence indicators; this isolated technique mapping does not establish ransomware activity. The reputation check covered all nine observed hosts without finding malicious or suspicious entries, and none of ten inspected children was identified as malicious. The unsigned executable and two weak imphash-only precedents remain cautionary factors, but the overall evidence strongly favors a false positive.
What We Detected
Bkav was the only engine to flag the file, using the generic label W32.Malware.68318701. The other 74 engines did not report a malicious result, and no tier-1 engine detected a named malware family.
Threat Behavior
One completed sandbox run recorded mostly common execution and discovery activity and returned no malicious sandbox verdict. T1486 was mapped once, but there was no corroborating ransomware-family detection, persistence indicator, malicious child, or high-entropy packed code. All nine observed hosts were checked against the available reputation cache, with no malicious or suspicious matches.
What To Do Now
Verify that the executable came from its expected source because it lacks a digital signature. Keep endpoint protection enabled, and rescan if the file changes or begins producing unexpected file modifications or network activity.
Where this verdict could be wrong3 caveats
- The executable is unsigned under signing.signed=false, so publisher identity and provenance cannot be authenticated.
- The sandbox mapped behaviour.offensiveTechniques to T1486, although no malicious sandbox verdict or ransomware-family detection corroborated that mapping.
- Two imphash-related samples previously received suspicious scores of 45, but both lacked signer co-matches and may reflect a shared build framework.
These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.
- Only 1/75 engines flagged the sample, and engines.onlyLowTrustFlagging=true
- engines.tier1Malicious=0 with 16 tier-1 engines reporting no detection
- behaviour.hasMaliciousSandboxVerdict=false
- droppedChildren.hasMaliciousChild=false across 10 inspected children
- contactedHosts covered 9/9 observed hosts with no malicious or suspicious matches
- signing.signed=false: executable provenance is not authenticated
- behaviour.offensiveTechniques includes T1486 without independent corroboration
- Bkav reported the generic label W32.Malware.68318701
- 2/2 imphash-only similar samples previously received suspicious verdicts
Use the file only if it came from an expected source, and keep endpoint protection enabled. The isolated generic detection can reasonably be treated as a likely false positive unless later behavior or rescans add corroborating evidence.
Coverage & freshness
Complete means the check returned a usable result. It does not mean the file is safe.
Antivirus
Complete1 of 75 engines flagged the file.
Sandbox
Complete1 isolated runtime environment contributed observations.
Network
Complete9 contacted hosts were cross-checked.
YARA
CompleteRule evaluation completed with no recorded matches.
External intel
Complete3 of 3 independent reference sources completed.
Behavior
Plain-English impact first, then the observed runtime evidence.
Runtime flight recorder
Capture complete- 1isolated sandbox run
- 11MITRE ATT&CK techniques
- 5spawned processes
- 9network contacts
- 15filesystem & mutex artifacts
What this file did when executed
This file was detonated in 1 sandbox and its runtime behaviour was observed.
Adversary techniques mapped to the MITRE ATT&CK framework.
- windows.msn.com-ion.edgesuite.net
- a1672.dscr.akamai.net
- svc.ha-teams.office.com
- svc.ms-acdc-teams.office.com
- assets.msn.com
- assets.msn.com-ion.edgesuite.net
- a1666.dscr.akamai.net
- edge.ds-c7114-microsoft.global.dns.qwilted-cds.cqloud.com
- cl-glcb907925.globalcdn.co
- HKEY_USERS\S-1-5-21-4270068108-2931534202-3907561125-1001\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.exe\OpenWithProgids\exefile
- C:\Users\<USER>\AppData\Local\Temp\_MEI16922\PIL\_imaging.cp313-win_amd64.pyd
- C:\Users\<USER>\AppData\Local\Temp\_MEI16922\PIL\_imagingcms.cp313-win_amd64.pyd
- C:\Users\<USER>\AppData\Local\Temp\_MEI16922\PIL\_imagingft.cp313-win_amd64.pyd
- C:\Users\<USER>\AppData\Local\Temp\_MEI16922\PIL\_imagingmath.cp313-win_amd64.pyd
- C:\Users\<USER>\AppData\Local\Temp\_MEI16922\PIL\_imagingtk.cp313-win_amd64.pyd
Files this sample writes at runtime
This file drops 10 children at runtime. None are currently flagged malicious in our cache.
- 48f4a239c25354f0e9f8…17ecedNever scannednever seen before
- 3271d39d7b4dcd841e8e…efe5e5Never scannednever seen before
- cb71909bf01a3a7a4c73…d46e13Never scannednever seen before
- 6a99bc0128e0c7d6cbbf…cbc6c8Never scannednever seen before
- 98074c85650a420a095a…b084e9Never scannednever seen before
- 81eca6840b87f2def9fc…d7aaaaNever scannednever seen before
- 4f05f31ca026bbfeeee4…7ab5deNever scannednever seen before
- 5c0d5082fba1a2a3eb8d…198815Never scannednever seen before
- 3130bf26da0c840c1e02…5a3539Never scannednever seen before
- 47576cae321c80e69c7f…ac6b91Never scannednever seen before
Detection & Forensics
Consensus, attribution, signatures, code structure, prevalence, and identity.
Evidence integrity
Chain of custody for the facts preserved in this report.
- 0rule hits recorded
- 1 / 75engines flagged
- 26sources in submission history
Why these facts are shown
Each statement identifies whether it was directly recorded or derived from saved scan facts.
- 01
1 of 75 antivirus engines flagged the file, including Bkav.
Verdict inputView chapterProvenanceObservedSourceAntivirus analysisObserved at - 02
The hash has been submitted 30 times from 26 sources.
ProvenanceDerivedSourceSaved report factsObserved at - 03
Scanned file: nanami.exe — 3dd18257c7d4f191d554c4a7b37bcd6a46abd7ec88864ce6a6e4e42174f7d690
ProvenanceObservedSourceUploaded fileObserved at - 04
Observed process — C:\Windows\system32\services.exe
ProvenanceObservedSourceIsolated runtime analysisObserved at - 05
Observed process — "C:\Users\<USER>\Desktop\red_black_detector.exe"
ProvenanceObservedSourceIsolated runtime analysisObserved at - 06
File written: _imaging.cp313-win_amd64.pyd — C:\Users\<USER>\AppData\Local\Temp\_MEI16922\PIL\_imaging.cp313-win_amd64.pyd
ProvenanceObservedSourceIsolated runtime analysisObserved at - 07
File written: _imagingcms.cp313-win_amd64.pyd — C:\Users\<USER>\AppData\Local\Temp\_MEI16922\PIL\_imagingcms.cp313-win_amd64.pyd
ProvenanceObservedSourceIsolated runtime analysisObserved at - 08
Contacted host: windows.msn.com-ion.edgesuite.net — Contact observed during runtime.
ProvenanceObservedSourceIsolated runtime analysisObserved at - 09
Contacted host: a1672.dscr.akamai.net — Contact observed during runtime.
ProvenanceObservedSourceIsolated runtime analysisObserved at
Detection sources at a glance
The available sources did not agree on a named threat category.
MalwareBazaar, YARAify, and CIRCL hashlookup completed and returned no entries for this hash.
YARA rules
No matchesThe rule pass completed without a saved public match.
1 of 75 engines flagged this file
View all 75 engine results
Section entropy & packers
No high-entropy executable section or known packer signature was detected. Data and resource sections can still have high entropy without indicating packed code.
How widely this file has been seen
Moderate prevalence — neither rare nor common. No strong prior applies.
Fingerprint and provenance
- File name
- nanami.exe
- Format
- Win32 EXE
- Code signing
- No verified publisher
- Size
- 91.5 MB
- Last analyzed
- Oct 6, 2026, 10:29 PM UTC
3dd18257c7d4f191d554c4a7b37bcd6a46abd7ec88864ce6a6e4e42174f7d690Safety & FAQ
Complete recovery guidance and answers for the next decision.
What to do now
This file appears low risk based on the evidence available now.
- Recovery step 01
Run it only when it came from the developer's official site or another source you independently trust.
- Recovery step 02
A clean result reduces known risk, but it cannot guarantee that every new or targeted threat has been detected.
- Recovery step 03
Keep your antivirus and Windows updates switched on so you stay protected.
Safety FAQ
Direct answers grounded in the saved verdict and evidence in this report.
Is nanami.exe safe?
What is nanami.exe?
How many antivirus engines detected nanami.exe?
What is the SHA-256 hash of nanami.exe?
Is it safe to run nanami.exe?
How up to date is this analysis of nanami.exe?
Community
Member reviews and reports for this exact file hash.
