Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab071e081aa5c0b5…

MALICIOUS

PDF

34.5 KB Created: 2021-07-04 21:25:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 8f6bce30dc23beb16344bdf4cbceda19 SHA-1: e45e8bf5cb6e0b26dff061d960e398d5ba7df4b4 SHA-256: ab071e081aa5c0b514e84d26f33f353ba1aec82a9ba5fc45315cbbd03790b88f
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 0.9980

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 http://netcdn.tw/app/406889139/free-spins-promo-code-for-coin-master-game-hack PDF link annotation
    • http://perpus-baitulhikmah.esy.es/akasia/repository/how-to-get-free-robux-and-keep-it-youtube_GM431946152.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/how-to-earn-robux-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/roblox-hack-no-human-verification-2021-pc_GM431946152.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/free-roblox-dominus-infernus_GM431946152.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/coin-master-free-spin-link-new_GM406889139.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/roblox-cubes-of-god-hacks_GM431946152.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/free-roblox-club_GM431946152.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/coin-master-free-spins-link-hack_GM406889139.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/coin-master-tiradas-gratis-2021_GM406889139.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/100-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/free-exploit-injector-roblox_GM431946152.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/how-to-get-a-tool-in-fe-yield-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/how-to-equip-knife-roblox-hack_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_off00002f57.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F57 23008 bytes
SHA-256: f954f98f99680976f84d2e6a2033e8198f6a3d883d35cac5bf71dd720f2622c6
font_01_sfnt_off000062c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62C4 18760 bytes
SHA-256: a7821f754938d289ff7484a252228733acad1063dc6dac6f619e23573f31c341

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