File verdict·Decided by the MT AI Engine
Our call

Suspicious

Clean across 65 engines including tier-1 scanners, but brand-new small ZIP lacks runtime data and history.

Trust score60Moderate trust
MT AI confidence · 65%
Mod.-347.zip
377 B
af4aee5cf040397a9f790c69a18c
Antivirus engines
0 of 75 flagged
Code signing
Unsigned
Age
First seen 1mo ago
MT AI Engine · our arbiter

The verdict, reasoned out.

Not a rules engine. The MT AI Engine reads every signal we collected, weighs them against history, and commits to an answer.

65%Confidence
High
Reasoning

Strong clean signals from high-coverage engine scans outweigh any concerns initially. Yet the file's extreme newness, tiny size, and ZIP nature introduce uncertainty, as archives can conceal unpackable payloads. Absence of behavior, intel, or precedents prevents full clearance. Overall, mixed profile tilts suspicious pending deeper inspection.

Key signals · 5

Each signal cites a concrete token from the evidence the arbiter saw — engine name, MITRE technique, signer string, or an exact count.

  1. 65/75 engines reporting undetected (17 tier1 clean: Avast, BitDefender, ESET, F-Secure, Fortinet, GData, Ikarus, Kaspersky, Microsoft)

  2. prevalence.classification='rare_new' (1 unique source, firstSeen='2026-04-28')

  3. fileSize=377 bytes ZIP (looksLikePortable=true)

  4. No topDetections with malicious/hacktool labels

  5. No externalIntel.circl.hit, yaraify.hit=false, malwareBazaar.hit=false

Points in its favour
  • 17 tier1ReportedClean (e.g., BitDefender, ESET, Kaspersky)
  • 0 malicious from 65 reporting engines
  • No triggeredHeuristics
  • No hacktool/adware labels in topDetections
  • Clean tier1FamilyConsensus (family=null)
Points against
  • ageDays=0 (brand new)
  • rare_new prevalence (1 submission)
  • fileSize=377 bytes (minimal ZIP)
  • No behaviour/dynamic analysis
  • Unsigned/no signerStats
  • No similarHashes precedents
What to do

Do not open or execute. Extract contents in a secure sandbox or virtual machine, then rescan all extracted files. Delete if source untrusted.

No researcher-database hits
External threat-intel sources were not collected for this scan.
Antivirus engine breakdown

0 detections across 75 engines

0 malicious0 suspicious75 clean
Tier-117 engines
0flag
Top commercial AVs (low FP rate)
Tier-238 engines
0flag
Mainstream engines with mixed FP rates
Low-trust20 engines
0flag
Heuristic / generic-AI engines (high FP rate)
All 75 engines report this file as clean.
Hash af4aee5cf040… cross-referenced against 75 AV engines via our AV network.
Prevalence

How often this file shows up in the wild

Barely seen in the wild and first surfaced recently. This is the footprint of targeted malware the AV industry hasn't signatured yet — extra scrutiny is warranted.

Rare & new
Unique uploaders
1
Very few people have ever uploaded this — rare.
Total submissions
1
Includes repeat uploads by the same source.
First seen by VT
1mo ago
Apr 28, 2026
Prevalence quadrant
here
Rare · New
Targeted malware lives here
Common · New
Just-released software
Rare · Old
Niche or internal tooling
Common · Old
Trusted legitimate binaries
File identity

Forensic fingerprint

File biography
First seen (VT)
4/28/2026, 6:22:41 AM
First seen (MalwareBazaar)
Last analysis (VT)
4/28/2026, 7:06:17 AM
Scanned here
4/28/2026, 7:10:07 AM
File name
Mod.-347.zip
Size
377 B
MIME type
(unknown)
Detected type
ZIP
SHA-256
af4aee5cf040397a9fbed35476da0a2af6425cc91e7faf15263410790c69a18c
MD5
f2d720473721f40a026e21a9b16a5877
SHA-1
07023f4941c84cf88123afa4e875c5bda720ea5c
First seen (VT)
4/28/2026, 6:22:41 AM
Last analysis (VT)
4/28/2026, 7:06:17 AM
First scan (MalwareTips)
4/28/2026, 7:10:07 AM
Last scan (MalwareTips)
4/28/2026, 7:10:07 AM
Behavior tags
zip
Community classification

Reviews & malware reports(0)

Tell the community what you saw. Tag the sample — Trojan, Adware, False Positive — and share what the file did on your system. Your report helps confirm or dispute the AV verdict.

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Scanned by
harlan4096Staff
Files are processed in a streaming pass-through — MalwareTips never stores the binary on its servers. Only the scan result (hash, detections, verdict) is retained so the next person who scans the same file gets an instant answer. If you ran this file on your computer and are worried, scan your system with an up-to-date antivirus and change critical passwords from a different device.