Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ebde7dd5612ba42…

MALICIOUS

PDF

33.7 KB Created: 2021-07-04 19:31:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 0e8f5e8f273a14800376db7ebc1d262b SHA-1: 123e40a5f922ea6d79ccc0e1c46673ba544bf318 SHA-256: 5ebde7dd5612ba42fa4e60cdd12a66a140f28f91b294dd031cd0bebc5dd908b6
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/real-robux-codes-game-hack PDF link annotation
    • http://digilib.iailm.ac.id//repository/getrobux-info_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/i-want-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/pubg-uc-zong_GM1330123889.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-hack-into-unicorn-dream-queen-12-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/minecraft-pvp-hacks_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-robux-for-roblox-2021-genorat-no-human-verification_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-free-spins-link-2021-haktuts_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/coin-master-hack-without-verification-ios_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-spins-coin-master-october-17-2021_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coinmaster-blogspot_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/spin-and-coin_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/pubg-hack-uc-20219_GM1330123889.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-get-minecraft-for-free-on-laptop_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-hack-spins-apk-download_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-name-change-roblox-hack_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-hack-roblox-to-where-you-can-fly_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/nuevo-hack-generador-de-robux-de-roblox-by-pignolise_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_off00002d2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D2D 22336 bytes
SHA-256: 94bbe734c1267ef338f22ea0460683e9c21be685f1b8f04710efc27ca01017c5
font_01_sfnt_off00005f56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F56 18800 bytes
SHA-256: 1032db7fed7eaf38e350c4254e7119c268420278dcc9fc4bea8c042b44b93b93

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