Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a8ceb5c5a2b5c04…

MALICIOUS

PDF

39.9 KB Created: 2021-05-10 16:05:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: e870a19c5309f4e41938ae1ee02f16da SHA-1: 963b1c545d959a0301e019230f2eeb0de6231867 SHA-256: 8a8ceb5c5a2b5c0486da95a3416aeaab6a183a2ecec37d0d1fcef3cdd90fc59e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a lure for game hacks, specifically linking to a generator for Minecraft. The primary link directs to a URL known for hosting such lures. While no scripts were extracted, the PDF structure and embedded links indicate a phishing or scam attempt designed to redirect users to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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/479516143/minecraft-windows-10-hacks-game-hack PDF link annotation
    • http://ipdrs.org/images/free-robux-obby-2021_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/roblox-earn-robux_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/download-hack-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/minecraft-texture-packs-free-download_GM479516143.pdfIn PDF document text
    • http://ipdrs.org/images/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/master-free-spin_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/roblox-premium-free_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/levvvel-coin-master_GM406889139.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_003_off00003f54.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3F54 25084 bytes
SHA-256: 1d5f18de6d445bb12f51094cf5fb30098e7636e24d49eb38cf9c6a19fc03991e
font_01_sfnt_off000078bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78BC 18696 bytes
SHA-256: 14f86b407040f424958936cb2b2b49b26067a8980bd50a77917f0563cc1bff87

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