Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc930d0b9c1a8ab6…

MALICIOUS

PDF

34.9 KB Created: 2021-07-04 18:35:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: b6aedf922e1453a97511b16cc201b102 SHA-1: d6d57da023fcdee805b2b9217f22627e77642f94 SHA-256: fc930d0b9c1a8ab67c234dac4f0730cf3f1e760ef4bce1d7c878ed83a19d9a77
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/479516143/minecraft-java-edition-code-free-game-hack PDF link annotation
    • http://digilib.unbari.ac.id/repository/roblox-weight-lifting-simulator-2-hack_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-robux-thumbnail_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-pizza-cheat_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-avatar-clothes-free_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/dansploit-roblox-hack_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/can-you-use-cheat-engine-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/hacks-for-tower-of-hell-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/hack-para-robux-gratis-2021_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/robux-builders-club-free_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/kazoks-roblox-hack-script_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-characters-with-free-items_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-character-edit-hack_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/how-to-get-spins-for-free-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/minecraft-hacked-client-bedrock_GM479516143.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/hack-to-get-into-vip-room-in-forgotten-world-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-catalog-free_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/termianl-railway-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
font_00_sfnt_off000032ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32EC 22556 bytes
SHA-256: d3b2152adecee74f3f568001f2e882f756e8420504f9d2c4be948231b7fbd297
font_01_sfnt_off0000651f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x651F 18452 bytes
SHA-256: fb81680995477894643c941a28c0a6267adb45412d3f0a67d8ffcc83b29268cc

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