Malicious PDF — malware analysis report

Static analysis result for SHA-256 df7ab7d58b7b0b05…

MALICIOUS

PDF

33.0 KB Created: 2021-06-28 17:05:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: e4a18b4f80e66c0f29059a37da68602a SHA-1: 30b203263fe86afba7f08f5baa75609692d7d7b8 SHA-256: df7ab7d58b7b0b058afacabcb00289eae27dbce418d98a6234c900794987c425
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 0.9824

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/roblox-frisk-shirt-free-game-hack PDF link annotation
    • http://library.atim.ac.id/repository/how-do-you-get-robux-for-free-on-pc_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/dolphin-hacks-roblox-exploits_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/get-free-robux-skin-tone_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/robux-hack-script-2021_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/coin-master-hack-facebook_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-get-roblox-admin-with-cheat-engine_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-gift-card-for-free_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/coin-master-hack-spins-apk-download_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-get-free-robux-no-download-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-hack-stealing-items_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-cbro-invincible-hack_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-get-free-coins-and-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-elemental-dragon-tycoon-cheat-codes_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/coin-master-hack-no-survey-2021_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-free-robux-game-uncopylocked_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-hack-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/coin-master-games-hack_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_off00002a5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A5A 22292 bytes
SHA-256: 0549bf484cd28539e8681e82ef0962628b0802b8dea19de03e541caa6b6c19e7
font_01_sfnt_off00005bf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BF8 19212 bytes
SHA-256: 3ab7b472e45b3f936875c30dfaa75c4ebc71fbff3043fadd46c74eef38ed8d73

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