Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ec1ffdddabb8818…

MALICIOUS

PDF

38.8 KB Created: 2021-05-21 00:19:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c26136ece6db3aac2561950941061b60 SHA-1: c9a360c7e956e3ae7bd73b721a4dfb3920c0994d SHA-256: 0ec1ffdddabb881866f78a2f5c7a39989dd89e94c5b0da934477d1c3b4674915
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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/431946152/free-premium-roblox-game-hack PDF link annotation
    • http://www.sapaengineering.kz/images/cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/haktuts-coin-master-free-spin-link-today_GM406889139.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/coin-master-free-spins-through-coin-pop_GM406889139.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/rewardex-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000032fc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32FC 24656 bytes
SHA-256: 35e501f0fc81c6c771e6fc6f97ef1bff8f6260e1c17f3793e248e3c92a1c83b2
font_01_sfnt_off00006bae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BAE 2880 bytes
SHA-256: 552e62132cae3603ce0819827e44d96a992bd06014cc5080bf3af4b2ea155b3e
font_02_sfnt_off00007586.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7586 18620 bytes
SHA-256: db698e20de7c3d454232d28484b91ac7eeacd2d96f4c59a267e05c3027dbd208

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