Malicious PDF — malware analysis report

Static analysis result for SHA-256 0334029c3a765dc0…

MALICIOUS

PDF

34.7 KB Created: 2021-07-04 20:51:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: c0835fc349b196ecd51de6c3db69b4e8 SHA-1: a7b839369cd7db8745a17953d34e29d8b9339d33 SHA-256: 0334029c3a765dc0fcb07f05153e14753d818d7ba3819dd3755e9daf0b8a943b
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/coin-master-cheat-codes-free-game-hack PDF link annotation
    • http://digilib.iailm.ac.id/repository/coin-master-card-collection-hack-apk_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-hack-on-roblox-games-phone_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/dowload-free-robux-hack-on-pc-for-free_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-free_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-generator_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-get-hammer-tool-roblox-hack_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/earn-rbx_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/no-virus-roblox-hack_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/minecraft-114-4-download_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/hjow-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/god-mode-hack-roblox-cheat-engine-64_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-free-pants-and-shirt_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-hack-using-cheat-engine_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/toolbox-apk_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/download-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/try-minecraft-free_GM479516143.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_off0000320b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x320B 22744 bytes
SHA-256: 24704f28346b8a987473a8393966ec7a7efee9ee04219febd2e7bc1ee4cabaaa
font_01_sfnt_off0000650e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x650E 18336 bytes
SHA-256: e5ab9426ceebda735145631dcac80539ebef67cbc66238351e21851a53c87ea4

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