Malicious PDF — malware analysis report

Static analysis result for SHA-256 c094fd1653fe6f5b…

MALICIOUS

PDF

45.4 KB Created: 2021-06-10 13:42:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 5ba46a55f948436e8a056ad53f22dedf SHA-1: 287c249bb5d9e9f5055282946c1a07d83fa50344 SHA-256: c094fd1653fe6f5bd8644355628c10be95f34d3ce2edb51f2d366c59e83ae702
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 0.9864

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 https://netcdn.tw/app/431946152/roblox-royale-high-halo-hack-game-hack PDF link annotation
    • http://pwpyemen.org/images/blox-fish-free-robux_GM431946152.pdfIn PDF document text
    • http://pwpyemen.org/images/coin-master-hack-tool-no-human-verification_GM406889139.pdfIn PDF document text
    • http://pwpyemen.org/images/lazyblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://pwpyemen.org/images/coin-master-daily-free-link_GM406889139.pdfIn PDF document text
    • http://pwpyemen.org/images/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://pwpyemen.org/images/free-coinmaster-spins_GM406889139.pdfIn PDF document text
    • http://pwpyemen.org/images/how-to-hack-stats-in-dragon-ball-ultimate-warriors-roblox_GM431946152.pdfIn PDF document text
    • http://pwpyemen.org/images/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://pwpyemen.org/images/coin-master-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • http://pwpyemen.org/images/how-to-get-gold-cards-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://pwpyemen.org/images/escape-room-by-devultra-cheats-roblox-forest_GM431946152.pdfIn PDF document text
    • http://pwpyemen.org/images/roblox-free-robux-july-2021_GM431946152.pdfIn PDF document text
    • http://pwpyemen.org/images/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://pwpyemen.org/images/coin-master-free-codes_GM406889139.pdfIn PDF document text
    • http://pwpyemen.org/images/free-coins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://pwpyemen.org/images/hack-download_GM431946152.pdfIn PDF document text
    • http://pwpyemen.org/images/coin-master-apk-hack_GM406889139.pdfIn PDF document text
    • http://pwpyemen.org/images/pubg-uc-ucuz_GM1330123889.pdfIn PDF document text
    • http://pwpyemen.org/images/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://pwpyemen.org/images/minecraft-ps4-code-free_GM479516143.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_off00004ef2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EF2 27344 bytes
SHA-256: 27fd3cee4be4eba0fb6ed98c0664770971ce1f708242b42fbe0abab3a03751ab
font_01_sfnt_off00008d27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D27 18936 bytes
SHA-256: a672ad3fe6f7e242aaa43521625a87411964c21fb25668c7cc896a24ff21a084

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