Malicious PDF — malware analysis report

Static analysis result for SHA-256 df8ab6d1bf1f41c8…

MALICIOUS

PDF

34.2 KB Created: 2021-07-03 12:59:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 24eb8010bc77e63d42ff05dad9831123 SHA-1: 0047a6d8cbfbe0c5a1137027ceba61c6b701348f SHA-256: df8ab6d1bf1f41c8805a834e4ee308561da54d9ec47b0d2a785ca189d7bb4c7f
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/431946152/hacking-apps-for-roblox-game-hack PDF link annotation
    • http://digilib.iailm.ac.id/repository/free-robux-for-roblox-cheats-and-guide-download-free_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/luis-coment-robux-free_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-robux-group-join_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/jump-higher-hack-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-minecraft-java-edition-codes_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-roblox-card-codes-not-used-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-tablet-cheats_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-cheats-on-girlfriend_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/wall-hack-counter-blox-roblox-offensive_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/ifinite-robux-no-hack-or-surver_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/minecraft-pe-free_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-roblox-clothes-no-gltich_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-math-games-online-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/new-free-level-6-roblox-exploits_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/exploit-roblox-2021-free_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/coin-master-hack-pro-gamers_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
font_00_sfnt_off00002f68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F68 22204 bytes
SHA-256: 49b85c3fbaeb82903c8b7bbb75bc3b8d4b4cc71f38a73ec235a51fda9750edc6
font_01_sfnt_off0000609c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x609C 19116 bytes
SHA-256: 3bcd7b2d89d8aecd7d130b41463c553295403bd5e8c490fc64bd1910461431f2

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