Malicious PDF — malware analysis report

Static analysis result for SHA-256 3eee0eafbbcb7070…

MALICIOUS

PDF

37.1 KB Created: 2021-05-23 06:44:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 78fbeb4fb41cba585b2ea3a4b16c816a SHA-1: 81d9c2cad502727b953c7e684275ef31ca14f24d SHA-256: 3eee0eafbbcb7070c7647094602c526302fc3cea16dc613e60f0eff8bad4cb4d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains heuristics indicating it links to a 'free generator / game hack' lure, specifically mentioning 'free TikTok fans'. The document body reinforces this by displaying similar text and a call to action to access a TikTok generator. The embedded URLs likely lead to websites designed to trick users into downloading malware or providing personal information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/835599320/free-tiktok-fans-no-human-verification-or-downloading-apps-game-hack PDF link annotation
    • http://autoskola-scp.com/files/pubg-uc-yollama_GM1330123889.pdfIn PDF document text
    • http://autoskola-scp.com/files/free-roblox-gear_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/coin-master-reward-link-2021_GM406889139.pdfIn PDF document text
    • http://autoskola-scp.com/files/coin-master-free-spin-download_GM406889139.pdfIn PDF document text
    • http://autoskola-scp.com/files/robux-hack-generator_GM431946152.pdfIn 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_002_off000033ac.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33AC 25156 bytes
SHA-256: 8064e154ea2afaad4808f0ba8dba55e3adc1dc3c2766da83026df189e078ae8e
font_01_sfnt_off00006ce2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CE2 19260 bytes
SHA-256: c23abd5df90a5b7093cc3e198b5bcaea5ee7ff11a274e14c679da15d1a345c21

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