Malicious PDF — malware analysis report

Static analysis result for SHA-256 7dd9d68a8a46041a…

MALICIOUS

PDF

33.1 KB Created: 2021-07-05 18:36:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: b7dce56425990d58f89059c9dda2c799 SHA-1: e015f16c0cb779acdfda7d647db0846283d316a9 SHA-256: 7dd9d68a8a46041aa1be19196649abb3511af35d08ca9c0b5360c79343cc7fb3
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-hack-tool-apk-download-game-hack PDF link annotation
    • http://library.forda-mof.org/katalog/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-minecraft-printables_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-hack-spins_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/robux-com-free_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-daily-link_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/fornight-in-roblox-free_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-get-free-hats-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-haktuts_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/androeed-ru-minecraft_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/minecraft-fly-hack_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/prison-life-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/cone-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-rocitizens-hack-2021_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-free-spins-app-for-iphone_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/hack-roblox-non-infect_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/stock-speed-coin-master-free-spins_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
font_00_sfnt_off00002e2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E2A 21420 bytes
SHA-256: 05f9282686140e87e0452acd7b02b9895a32ee3f1435b04226a3e5be9ad0ebe2
font_01_sfnt_off00005d17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D17 18760 bytes
SHA-256: bbf27033e57eaa2b14702d38ebe1a4a11644b4e7d3fc18420f2587cca532295e

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