MalwareTips
Threat LensFile scan report

Is PDF_31MDKF_20261008_9577.ZIP safe?

Verdict
Suspicious

ESET identifies a Trojan downloader and two K7 engines concur, but limited detection agreement and absent runtime evidence prevent firm family attribution.

Three of 75 engines flagged this newly observed ZIP, including ESET-NOD32 with a TrojanDownloader label. The signal warrants caution, but most tier-1 engines did not detect it, and no completed sandbox or host-reputation evidence is available.

Do not open or extract it until verified

Quarantine the archive and avoid extracting it until its source is independently verified and the contents receive controlled runtime analysis. Keep endpoint protection enabled.

Read the full analysis
Saved file evidenceAntivirus consensus
3of 75 flagged
Flagged 3No detection 72
Digital specimenPDF_31MDKF_20261008_9577.ZIPb0cbe6043ad9e9cdbd…54444b822b7956
Size288.1 KB
Code signingNot applicable
SandboxPartial coverage
First seenToday
Evidence2 priority signals
3 of 75 antivirus engines flagged the file, including ESET-NOD32 and K7AntiVirus.

Recommended next actions

01

Before opening or extracting

Do not open or extract it until the source can be verified independently.

02

If you already opened or extracted it

Stop using it, scan the device, and watch for unexpected behavior or security alerts. Get a fresh copy from the original trusted source and verify its exact hash when possible.

Chapter 02

Intelligence

The saved assessment, checked against the scan evidence and recorded coverage.

MT AI Engine · Verdict analysis

The reasoning behind this verdict

This section explains the evidence supporting the verdict and keeps conflicting or missing signals visible.

68%Confidence
High
Analyst conclusion

Three of 75 engines flagged this newly observed ZIP, including ESET-NOD32 with a TrojanDownloader label. The signal warrants caution, but most tier-1 engines did not detect it, and no completed sandbox or host-reputation evidence is available.

Where this verdict could be wrong3 caveats
  • Only 3/75 engines detected the file, while 16 tier1 engines reported no detection.
  • externalIntel.circl.hit=false, but MalwareBazaar and YARAify coverage was skipped, so external corroboration is incomplete.
  • The two K7 detections use the same label and may not represent fully independent corroboration.

These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.

Recommended action

Quarantine the archive and avoid extracting it until its source is independently verified and the contents receive controlled runtime analysis. Keep endpoint protection enabled.

Scan transparency

Coverage & freshness

2 of 5 complete

Complete means the check returned a usable result. It does not mean the file is safe.

  • Antivirus

    Complete

    3 of 75 engines flagged the file.

  • Sandbox

    Partial

    Runtime data is present, but no completed sandbox environment is recorded.

  • Network

    Not run

    No contacted-host reputation check is recorded.

    No timestamp recorded

  • YARA

    Complete

    Rule evaluation completed with no recorded matches.

  • External intel

    Partial

    Independent reference checks were attempted but are incomplete.

Chapter 03

Behavior

Plain-English impact first, then the observed runtime evidence.

Chapter 04

Detection & Forensics

Consensus, attribution, signatures, code structure, prevalence, and identity.

Chapter 05

Safety & FAQ

Complete recovery guidance and answers for the next decision.

What to do now

We couldn't fully clear this file. Treat it with caution.

  1. Recovery step 01

    Don't open or extract it unless you're certain it came from a source you trust.

  2. Recovery step 02

    Check where you got it — an unexpected attachment or a random download link is a red flag.

  3. Recovery step 03

    If its origin cannot be confirmed, delete this archive and use a fresh copy from a trusted source. Get a fresh copy from the original trusted source and verify its exact hash when possible.

  4. Recovery step 04

    If you're still unsure, scan it again in a day or two — detections often catch up on newer files.

Safety FAQ

Direct answers grounded in the saved verdict and evidence in this report.

8 evidence-based answers
Is PDF_31MDKF_20261008_9577.ZIP safe, or is it malware?
Evidence-based answer
PDF_31MDKF_20261008_9577.ZIP is suspicious — treat it as unsafe until you're sure. 3 of 75 antivirus engines flag it; that detection signal contributes to the cautious verdict. Don't open or extract it unless you fully trust where it came from. Get a fresh copy from the original trusted source and verify its exact hash when possible.
What is PDF_31MDKF_20261008_9577.ZIP?
Evidence-based answer
PDF_31MDKF_20261008_9577.ZIP is a compressed archive, about 288 KB. We identify a file by its cryptographic hash rather than its name, because the same filename can be reused by completely different files — the hash below is the reliable fingerprint.
How many antivirus engines detected PDF_31MDKF_20261008_9577.ZIP?
Evidence-based answer
3 of 75 antivirus engines flagged PDF_31MDKF_20261008_9577.ZIP, 3 of them as outright malicious. The raw count alone does not establish safety or danger; we also weigh which engines flagged it and corroborating behavior, identity, reputation, and rule evidence.
I already downloaded and opened or extracted PDF_31MDKF_20261008_9577.ZIP — what should I do?
Evidence-based answer
Act quickly. 1) Disconnect the device from the internet to stop the malware communicating or spreading. 2) Run a full scan with reputable anti-malware software (such as Malwarebytes) and quarantine everything it finds. 3) Change your important passwords from a DIFFERENT, clean device — many threats log keystrokes or steal saved credentials. 4) If you bank or shop on this device, watch closely for fraud and alert your bank. 5) For a confirmed infection, the most reliable fix is to back up your personal files and reinstall the operating system for a clean start.
How do I remove PDF_31MDKF_20261008_9577.ZIP?
Evidence-based answer
To remove PDF_31MDKF_20261008_9577.ZIP: 1) restart into Safe Mode (Safe Mode with Networking if you need to download a tool) so the malware doesn't auto-start. 2) Run a full scan with reputable anti-malware software and let it quarantine or delete the detections. 3) Delete this archive from the device, then empty the Recycle Bin or Trash. 4) Check your browser extensions, startup items, and scheduled tasks for anything unfamiliar. 5) Reboot and scan again to confirm it's gone. If detections keep coming back, a clean operating-system reinstall is the most dependable cure.
What kind of malware is PDF_31MDKF_20261008_9577.ZIP?
Evidence-based answer
PDF_31MDKF_20261008_9577.ZIP is classified as a downloader/dropper whose job is to pull additional malware onto the device. Knowing the family matters because it tells you the likely impact — data theft, remote control, file encryption, or unwanted ads — and guides the cleanup.
What is the SHA-256 hash of PDF_31MDKF_20261008_9577.ZIP?
Evidence-based answer
The SHA-256 hash of PDF_31MDKF_20261008_9577.ZIP is b0cbe6043ad9e9cdbd92ce93168b9efb7c9382d465ae9b5e7f54444b822b7956, and its MD5 is edcd756af09bf2f88fce127389975c3f. This hash is the file's unique fingerprint — two files with the same SHA-256 are identical. Use it to confirm you're looking at exactly this file (not just one with the same name) when comparing against antivirus databases or a download's published checksum.
How up to date is this analysis of PDF_31MDKF_20261008_9577.ZIP?
Evidence-based answer
This report reflects the scan run on October 8, 2026. Because a file's hash never changes, the identity of PDF_31MDKF_20261008_9577.ZIP is fixed — but antivirus coverage improves over time, so a file that looks clean today can pick up detections later (and vice-versa). If you need the latest picture, MalwareTips staff can re-run the analysis from scratch.
Chapter 06

Community

Member reviews and reports for this exact file hash.

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The raw file is processed temporarily and is not retained after processing. Its hash and report are public and permanent, so the next person who checks the same file gets an instant answer. Unknown files may be submitted to VirusTotal for analysis. 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.