Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c6cebb572a0cc6d…

MALICIOUS

PDF

47.7 KB Created: 2021-06-08 16:58:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: e6fa2d235d8b5d51d6663fd006e9ace5 SHA-1: 0a8132c5fdfd5c060bb7eb2e9e1f21cf24a81749 SHA-256: 2c6cebb572a0cc6db51fb9345cb7dc8e2d09feb68a400de5784e70816badfcc0
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 0.9769

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/how-to-hack-roblox-death-zone-game-hack PDF link annotation
    • http://library.forda-mof.org/katalog/repository/spins-gratis-coin-master-hoy_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-wheel_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/50-free-tiktok-likes_GM835599320.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/download-hacked-games-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/minecraft-logo-maker-free_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-get-free-coins-and-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/robux-hack-tools_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-get-800-robux-for-free_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-minecraft-shaders_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/claim-free-robux-button_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-get-minecraft-on-chromebook-for-free_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/minecraft-mod-menu_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/minecraft-reach-hack_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-link-daily-get-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-email-rewards-link_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000531c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x531C 24640 bytes
SHA-256: 7474962cb43176b774549141a828a8bbf9a44a8f0b2599d956f45f502bdb1b92
font_01_sfnt_off00008bd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BD9 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off0000958b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x958B 18876 bytes
SHA-256: d22174cf9763747a05eb1b9b00c1ee4b4971e9e42f8bb22b574dd20c8a05dca8