Malicious PDF — malware analysis report

Static analysis result for SHA-256 7be31677982fd15a…

MALICIOUS

PDF

33.3 KB Created: 2021-07-03 14:49:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: df260024d069aca4611815f0d0db9ad7 SHA-1: 1153d64419d236fd97db5289778b289e6e12dfb2 SHA-256: 7be31677982fd15ae42029f16266c6835a202de376991c0fbebe159c3deebea1
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/hack-coins-in-coin-master-game-hack PDF link annotation
    • http://lib.stimykpn.ac.id/repository/zeluc-roblox-exploit-hacks_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-robux-working-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-bee-swarm-simulator-free-diamond-eggs-codes_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/rblx-gg-free-robux-today_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/ex7-roblox-free-download_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-how-to-get-free-admin_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/rbx-tools-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-chat-hacks-script_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/minecraft-items_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/hack-1k-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-games-roblox-free-online_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/toolbox-premium-apk_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/games-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-hack-bypass-2021_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-c9m_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-get-rogue-lineage-for-free-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-damage-hack_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-counter-blox-hacks-2021-download_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-robux-giveaway-every-hour_GM431946152.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_off00002d9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D9C 22624 bytes
SHA-256: b4d2738f0b2c8c81c631856133061da6b732710775a8c9a884a8907840162d0d
font_01_sfnt_off00006041.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6041 18004 bytes
SHA-256: 97a583b0a3e69f2f5f434e768b16a64681d06eacdc187232e3f87ce02c39dd89

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