Malicious PDF — malware analysis report

Static analysis result for SHA-256 1322767018dc74bf…

MALICIOUS

PDF

41.6 KB Created: 2021-05-13 14:35:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f6b03bb4055d096a49aa2f159be3933c SHA-1: ee42afea2dca737b59dded44c4f06eaa9cf26cf6 SHA-256: 1322767018dc74bf6dd523c54fee119a42ec8ed4ec4796abdb67dab125346c63
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/free-minecraft-gift-codes-game-hack PDF link annotation
    • http://promotion.si/images/game-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://promotion.si/images/coin-master-hacks-xyz_GM406889139.pdfIn PDF document text
    • http://promotion.si/images/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • http://promotion.si/images/minecraft-bedrock-download-pc-free_GM479516143.pdfIn PDF document text
    • http://promotion.si/images/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/free-minecraft-java-edition_GM479516143.pdfIn PDF document text
    • http://promotion.si/images/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://promotion.si/images/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/how-to-get-free-stuff-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://promotion.si/images/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://promotion.si/images/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • http://promotion.si/images/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/how-to-play-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://promotion.si/images/roblox-free-no-download_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/roblox-redeem-card-codes-free_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/coin-and-spin_GM406889139.pdfIn PDF document text
    • http://promotion.si/images/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/blogspot-free-spins-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_off000048b1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48B1 24840 bytes
SHA-256: 7328abd0fd1d37eee83f4d97b1b89628ba490bf8db0cf616601d31b0ad05f4c5
font_01_sfnt_off0000813f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x813F 17884 bytes
SHA-256: 7ec61a924c6d9821aca9f66af1070d56701b2b51a1f7faab5d7237cf03dbe1ad

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