Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0e344518c65a761…

MALICIOUS

PDF

46.2 KB Created: 2021-06-03 23:34:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 14fc88338f31d0f5852d8e91f07cad80 SHA-1: 5b156619715360610f91584003f25c93f3544777 SHA-256: f0e344518c65a761320194226eb1daafbb0667ea2f7656da268cb5fc746fd290
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 0.9797

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.online/app/406889139/free-spins-for-coin-master-2021-game-hack PDF link annotation
    • http://lib.mappifhui.org/repository/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-free-chest-in-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-hack-tool_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-coin-master-spins-and-coins-for-daily_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-free-spins-hack-ios_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-100-free-spins-link_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-free-robux-on-phone-2021_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-sword-hack-reacher_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/links-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-roblox-printables_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-roblox-premium_GM431946152.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_off00004f5d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F5D 24640 bytes
SHA-256: ffb42f0f7e91402934a7970461a30e8a7f5286d4f121955bbf4d7b480a8def76
font_01_sfnt_off00008757.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8757 2920 bytes
SHA-256: 64c53edae7920bc04119553d13e7f88c7ab8c9d6abd0f5e62be35afdb33f76ff
font_02_sfnt_off00009173.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9173 18288 bytes
SHA-256: 66febbde5b4b2b6a44609229e8681f3f0581fff3ed5f82ed8e3d83342858c217

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