Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2c12a5270e84b55…

MALICIOUS

PDF

42.7 KB Created: 2021-04-30 02:02:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 797d0e00e47dba830cc3cc6f334a4be6 SHA-1: cdd603678939afa1a55534fd64eb5f1abb5da9a2 SHA-256: e2c12a5270e84b553b873907762ff85c76ace4ae7bc1f24ef9af4c1f9298f186
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 0.9830

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 https://netcdn.xyz/app/431946152/free-girl-roblox-accounts-game-hack PDF link annotation
    • http://repository.poltekkesjakarta3.ac.id/repository/synapse-x-hack-roblox.pdfIn PDF document text
    • http://repository.poltekkesjakarta3.ac.id/repository/wings-free-in-roblox.pdfIn PDF document text
    • http://repository.poltekkesjakarta3.ac.id/repository/roblox-prsion-life-hacks.pdfIn PDF document text
    • http://repository.poltekkesjakarta3.ac.id/repository/roblox-island-royale-script-2021-hack.pdfIn PDF document text
    • http://repository.poltekkesjakarta3.ac.id/repository/free-robux-2021-no-human-verification.pdfIn PDF document text
    • http://repository.poltekkesjakarta3.ac.id/repository/hack-pia-para-roblox.pdfIn PDF document text
    • http://repository.poltekkesjakarta3.ac.id/repository/quel-touche-faire-pour-avoir-lz-free-code-dans-roblox.pdfIn PDF document text
    • http://repository.poltekkesjakarta3.ac.id/repository/roblox-jailbreak-hack-noclip-download.pdfIn PDF document text
    • http://repository.poltekkesjakarta3.ac.id/repository/how-to-use-noclip-hacks-roblox-2021-november.pdfIn PDF document text
    • http://repository.poltekkesjakarta3.ac.id/repository/how-to-cheat-on-roblox-twisted-murderer.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000416e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x416E 24840 bytes
SHA-256: a509f67e1e5d320db5613ba42c64a6a9568a25943f4d003dddc4447f5ea9fb1a
font_01_sfnt_off00007ae9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AE9 2844 bytes
SHA-256: baad2f3f6808f4af03fa9398e38c580c8d846f7f773a947d8cc1f39b2753d31a
font_02_sfnt_off000084aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84AA 18312 bytes
SHA-256: 9316480c44155f64236abd341246370208ae7c732be2c490990378085e08f6f4

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