Malicious PDF — malware analysis report

Static analysis result for SHA-256 57050edc2d11340d…

MALICIOUS

PDF

35.2 KB Created: 2021-06-26 11:33:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 0fadc2bc7c1e4ebf9b36bcc471e32b47 SHA-1: a9d25a651e2b011656cfa1d9ba62e1d8def65d0e SHA-256: 57050edc2d11340dccad6f09c47bd3efad512587dc8fbbe766c4fe1689e4cd00
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-get-free-robux-no-human-verification-2021-pc-game-hack PDF link annotation
    • http://perpus.polimarim.online/repository/nuevos-cdigos-de-roblox-de-hacks-jailbreak_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/roblox-hack-v2-1b_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/roblox-fidget-spinner-free-games_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/coin-master-apk_GM406889139.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/hack-coin-master-8-ball-pool_GM406889139.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/free-hacks-for-roblox-games_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/roblox-20219-robux-hack-versao-2390202159_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/roblox-hack-codes-2021_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/roblox-gewicht-heben-simolator-3-hack_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/roblox-the-games-free_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/free-draw-of-roblox-character_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/free-robux-app-real_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/coin-master-20-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/hack-roman-aegyptus-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/play-roblox-for-free-but-no-log-in_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/hack-roblox-players_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_off00002fbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FBB 22320 bytes
SHA-256: 23af9bb70bda99841e141a2bb06cbb6f27d0c8589a6aa3c898d84d48c0a7b7e6
font_01_sfnt_off0000616f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x616F 20052 bytes
SHA-256: 5154e59e353d2b81acfcdd229de26dcd1dcf3f6b42b1ae1f84b7fce30ebcc849

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