Malicious PDF — malware analysis report

Static analysis result for SHA-256 d418ab21ed9e8010…

MALICIOUS

PDF

33.6 KB Created: 2021-07-08 12:32:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 631b405ae575416f0d6a8c1851bee836 SHA-1: db1d2420bfbd54608f44a6c08b5b275944f985d7 SHA-256: d418ab21ed9e801039feb621c2d22aaec26c01ee291b48d3ec3385ba1bb008b6
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/431946152/hacks-for-booga-booga-in-roblox-game-hack PDF link annotation
    • http://library.forda-mof.org/katalog/repository/how-can-you-get-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/pokemon-go-accounts-free-list-2021_GM1094591345.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-vip-server-roblox_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-watch-add-to-get-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-download_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-mod-hack-apk_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-for-roblox-cheats-and-guide_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/tiktok-free-use_GM835599320.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/rbx-place-free-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-get-spins-for-free-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-noclip-hack-no-download_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-get-free-hair-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-free-100-spin-link_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-coin-master-game_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/minecraft-free-version_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_off000030f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30F6 21376 bytes
SHA-256: bc45c4bf4ce93ccd87cfeed1f6d5a9f73ac83f98e15afbd827562d5904b4c103
font_01_sfnt_off00005fa7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FA7 18636 bytes
SHA-256: 2ad0ae865ca9b92bdc01b5b9715c7ee126c2f07e5b8cd5cba97afaf956ecd752

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