Malicious PDF — malware analysis report

Static analysis result for SHA-256 b02b625817d03d04…

MALICIOUS

PDF

34.6 KB Created: 2021-06-20 00:01:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 29f08c320de1a34742bc66d74dbd3e50 SHA-1: c7b5708190fbd2fbb027424da418b0be3808d42d SHA-256: b02b625817d03d04bb0a26594d0512c08589c8ddf76e645ed4c8bfceacba788b
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.co/app/431946152/how-to-add-free-robux-to-your-account-game-hack PDF link annotation
    • http://digilib-ppsunisma.ac.id/repository/roblox-free-robux-no-offers_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/bit-ly-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-free-items-games_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/hack-someone-on-roblox-and-steal-their-robux_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-coin-master-game_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-roblox-capes-2021_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-headless-head-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-online-minecraft-server_GM479516143.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-adopt-me-promo-codes-roblox-july-2021_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/is-minecraft-earth-free_GM479516143.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/hacks-to-get-money-on-roblox-adopt-me_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-get-free-robux-enter-code_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-robux-safe_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/cheat-roblox-kick-players_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/2021-free-robux-today-hack-created-by-robuxian_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_off00002f64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F64 22384 bytes
SHA-256: b00ed8f3b615b41e5dda0cf38a1ee21ec2d35f259572db8d6b821dd268673e80
font_01_sfnt_off00006144.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6144 19320 bytes
SHA-256: ab6b807005ded372a89976e82f57c30d26be05914ff117abc9afe70311b7a4b3

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