Malicious PDF — malware analysis report

Static analysis result for SHA-256 36462d90061f83fe…

MALICIOUS

PDF

43.1 KB Created: 2021-05-15 11:06:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: e7f5920f9839a8dc12a22906b705711b SHA-1: a481566ae3c697e36154e1a1d26f8f00e418d3d0 SHA-256: 36462d90061f83fe13ed4291a3acb27159ec139c6bfd5933a68d372409abb71b
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 0.9971

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/how-to-get-minecraft-dungeons-for-free-game-hack PDF link annotation
    • http://nikabio.com/images/hack-coin-master-download_GM406889139.pdfIn PDF document text
    • http://nikabio.com/images/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://nikabio.com/images/minecraft_GM479516143.pdfIn PDF document text
    • http://nikabio.com/images/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://nikabio.com/images/coin-master-free-spins-link-cheat_GM406889139.pdfIn PDF document text
    • http://nikabio.com/images/coin-master-hack-2021-ios-download_GM406889139.pdfIn PDF document text
    • http://nikabio.com/images/get-robux-com_GM431946152.pdfIn PDF document text
    • http://nikabio.com/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://nikabio.com/images/free-coin-spin_GM406889139.pdfIn PDF document text
    • http://nikabio.com/images/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
    • http://nikabio.com/images/roblox-avatar-girl_GM431946152.pdfIn PDF document text
    • http://nikabio.com/images/how-to-get-roblox-premium-for-free_GM431946152.pdfIn PDF document text
    • http://nikabio.com/images/twitter-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://nikabio.com/images/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://nikabio.com/images/roblox-arsenal-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • http://nikabio.com/images/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://nikabio.com/images/coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://nikabio.com/images/how-to-get-free-premium-roblox_GM431946152.pdfIn PDF document text
    • http://nikabio.com/images/coin-master-blogspot-free-spins_GM406889139.pdfIn PDF document text
    • http://nikabio.com/images/free-robux-microsoft_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a0a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A0A 26076 bytes
SHA-256: 49842815332bc62bb9ca5a030ab0fae71ed3cbca4886e4c099fe2e18ecbda9dd
font_01_sfnt_off00008581.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8581 18472 bytes
SHA-256: 65ee82f26cafa7906902f4dbf8f4098f0781a130d3f16ad2d63d9ccc83542dd0

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