Malicious PDF — malware analysis report

Static analysis result for SHA-256 d746b2472014efa1…

MALICIOUS

PDF

36.4 KB Created: 2021-05-10 22:07:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 0e751ebe275e599715c4759eb7c15dc0 SHA-1: f5ae0b97143b0fc3fc5ac6fca32dcd829a418dba SHA-256: d746b2472014efa1552449fe4b6a0ab95e4d01251bc87b8a292ef75514c21311
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a lure for 'Minecraft Pvp Hacks' and a 'free generator', directing users to a malicious URL. This URL is flagged as a known malicious redirector, indicating an attempt to distribute further malware or lead users to a phishing site. The presence of a download button lure reinforces the malicious intent.

Machine Learning

  • Nyx PDF Classifier clean score 0.0312

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/479516143/minecraft-pvp-hacks-game-hack In PDF document text
    • https://discord.ggIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000356e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x356E 24892 bytes
SHA-256: 0784ad7ef6aa015684f8aad64672b23941d01d92de79a67a945dfe7fcbc7a457
font_01_sfnt_off00006d99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D99 18180 bytes
SHA-256: 0e2f0ac061c68c7eb9671630210144f167660a9976ef74b494f6c2985e791cfa

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