Malicious PDF — malware analysis report

Static analysis result for SHA-256 021eab838b96c30a…

MALICIOUS

PDF

35.0 KB Created: 2021-07-07 15:46:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 5bdf904104a7d99ea998f1261cc334d0 SHA-1: c44f4e942f9f99b2e627c8bcd6f43cf683346a8c SHA-256: 021eab838b96c30ae7b6df0690886056ebd6ba373303aa7addf7b74798de37ef
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/orewards-com-free-robux-game-hack PDF link annotation
    • https://akbidprimahusada.ac.id/elibrary/repository/how-to-get-2021-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/redeem-clde-roblox-free_GM431946152.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/free-robux-no-human-verification-no-survey-no-offer_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/roblox-theme-park-tycoon-2-cheats_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/free-bling-bling-card-coin-master_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/how-to-claim-free-robux-games-real_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/free-t-shirt-on-roblox_GM431946152.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/202113-hack-roblox_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/coin-master-free-coins-generator_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/no-verification-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/free-roblox-avatar-drawing_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/hacks-roblox_GM431946152.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/new-code-speed-hack-roblox_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/free-robux-games_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/how-to-get-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/how-to-hack-and-become-higher-rank-roblox-d-day_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/coin-master-mod_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31E9 22132 bytes
SHA-256: 7a6e5f8399c493261c6e3faf200b9ed827d73d5b7aabee85fbd87bd767c58d6e
font_01_sfnt_off00006300.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6300 19312 bytes
SHA-256: 2fc58e6e34b5e1a71d14c980e21155da553bce1e3a50e036c939353e45099324

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