Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dc4dcd9486ae433…

MALICIOUS

PDF

33.7 KB Created: 2021-07-04 11:43:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 3a5b510d37be64cf4438fa4aa7cd37a1 SHA-1: 2177af8385a5544fbeb9c051deecffee194243b9 SHA-256: 0dc4dcd9486ae433ff88431f5cc8ceec94697930393bf5f608acfe9d55d9dda3
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/coin-master-free-spins-8-14-2021-game-hack PDF link annotation
    • http://slim.sisminkada.net/repository/best-free-roblox-level-7-full-lua-eecutor_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-tiktok-followers-instantly_GM835599320.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-terminal-railway-admin-train-cheat_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/sentinel-roblox-hack_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/twitter-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/robux-hack-copy-and-paste_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-2021-november_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coolest-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-green-banner-drawing-roblox_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-robux-and-ticket-hackexe_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/oprewards-com-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/get-free-robux-gigicom_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/5-free-roblox_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/tix-hack-roblox-cheat-engine_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-hack-blog_GM406889139.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
stream_002_off00002d32.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2D32 22392 bytes
SHA-256: 05b8b1ce9d698ff906c800e7c7cb08ac5c23d0a32a43a97d4c3c2261bd745e6b
font_01_sfnt_off00005f1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F1E 18848 bytes
SHA-256: 70690ff1373fd61655dae8e9e57af48c5305234654d140449416f0890077dc85

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