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Verdict Suspicious

Analyzed , 1 month ago

Is not_malware.exe safe? Treat it as suspicious.

One detection from a major antivirus engine on an unsigned executable with no further corroboration.

Why Suspicious? One antivirus engine (Microsoft) flags it; nothing else confirms it.

Limited evidence

Don't run it until you know where it came from

Treat the file as untrusted until further engine or sandbox evidence appears.

What to do now4 steps

Some signs point to a problem, but nothing confirms it is harmful. Treat it with caution.

What to do

  1. Don't run it unless you're sure where it came from.

  2. Check where you got it: an unexpected attachment, a link someone sent you or a re-upload is a red flag.

  3. If you can't confirm where it came from, delete it. If you need the program, download it again from the publisher's own website.

If you already ran it

  1. 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.

Paste this report's link in your topic so helpers can see what was found.

Why we think so

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not_malware.exe: Suspicious — MalwareTips file scan

The link always shows the latest result for this exact file (its SHA-256 fingerprint).

Reads the latest antivirus results for this file's hash. Nothing is uploaded.

Antivirus results

1 of 69 flagged

  • Flagged 1
  • No detection 68
  • No result 6
Filenot_malware.exe150.8 kBSHA-256 108ef649b237…86a5a5
  • Code signing Unsigned
  • Test run Partial
  • First seen 1mo ago
1 of the 69 antivirus engines that checked it flags it (Microsoft).

Chapter 02

Why we think so

3 points against it and 2 in its favour, checked against the scan evidence.

MT AI Engine · Verdict analysis

The reasoning behind this verdict

Analyst conclusion

One major antivirus engine flagged the file as Trojan:Win32/Wacatac.B!ml while 68 others returned clean. The sample is unsigned, appeared when we scanned it on Sep 5, 2026, and has no sandbox or external-intel results.

6 sources checked · 4 complete · 1 partial · 1 not needed or not applicable. See every source

Chapter 03

Technical details

1 of the 69 antivirus engines that checked it flags it; no publisher signature.

Sources checked

Every check behind this verdict

6 sources checked · 4 complete · 1 partial · 1 not needed or not applicable. Complete means the check returned a usable result; it does not mean the file is safe.

SourceStatusResultChecked
Antivirus enginesVirusTotal · 75 enginesCompleteRisk signal: 1 of 69 engines flagged it · 6 gave no result Details for antivirus engines
Sandbox runVirusTotal sandboxesPartialRuntime data is present, but no completed sandbox run is recorded
Contacted hostsMalwareTips URL scannerNot neededNo sandbox run, so there were no contacted hosts to checkNo date recorded
Signature rulesYARAify community rules + MalwareTips rulesCompleteNo rule matched
Malware sample databaseabuse.ch MalwareBazaarCompleteNot listed
Known-software referenceCIRCL hashlookupCompleteNo match

Engines that flagged it 1

  • Microsoft (major engine)Trojan:Win32/Wacatac.B!ml

File fingerprint

Last analyzed
Sep 5, 2026, 4:27 PM UTC
SHA-256
108ef649b237d592d960d2a8009c37792c73f09dbaccd3d91b24574c9786a5a5
SHA-1
dfa8378d03c6f94e4495d51b3a05d781a7ee5c28
MD5
8b8eae90c27c43790bca7a8adb9c08f3

About this file

not_malware.exe is a Win32 EXE file of 150.8 kB.

Type and size
Win32 EXE · 150.8 kB
Signer
UnsignedNo code signature.
First seen
Sep 5, 2026On VirusTotal.
Submitted by
1 sourceRarely seen: few people have submitted this exact file.
Packer
None detected
Entropy
3.62 of 8

First scanned

Chapter 04

Questions & answers

Short answers to the 6 questions people ask most about this file.

Is not_malware.exe safe, or is it malware?
not_malware.exe is rated Suspicious: some signs point to a problem, but nothing confirms it is harmful. 1 of the 69 antivirus engines that checked it flags it. Don't run it unless you're sure where it came from. If you need the program, download it again from the publisher's own website.
What is not_malware.exe?
not_malware.exe is a Windows program, about 150.8 kB. It carries no version information saying what it is or who made it. VirusTotal first saw it on Sep 5, 2026.
How many antivirus engines detected not_malware.exe?
1 of the 69 antivirus engines that checked it flags not_malware.exe (Microsoft). We weigh which engines flagged it and what else the scan found, not just the count.
What should I do if I already ran not_malware.exe?
No infection is confirmed: the rating is a caution, not a malware finding. 1) Check where it came from. If you can't confirm the source, delete it. 2) Run a full scan with your security software. 3) If the scan finds something, follow its removal steps and change passwords you typed on the device since then.
What is the SHA-256 hash of not_malware.exe?
The SHA-256 fingerprint of not_malware.exe is 108ef649b237d592d960d2a8009c37792c73f09dbaccd3d91b24574c9786a5a5, and its MD5 is 8b8eae90c27c43790bca7a8adb9c08f3. Two files with the same SHA-256 are identical, so use it to check you have exactly this file, not just one with the same name.
How up to date is this analysis of not_malware.exe?
This report reflects the scan on Sep 5, 2026. A file's fingerprint never changes, but antivirus engines keep learning, so a rating can change later. To get a newer result, scan the file again: we refresh the antivirus results when the saved ones are out of date.
Chapter 06

Community

Member reviews and reports for this exact file hash.

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This report and its SHA-256 fingerprint are public, so the next person who checks the same file gets an instant answer; documents and images are listed by type instead of their file name. A file we had not seen before is uploaded to VirusTotal, whose security partners and subscribers can download it; MalwareTips deletes its own copy after the scan. If you ran this file and are worried, scan your device with up-to-date security software.