Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3dd74a94be19988…

MALICIOUS

PDF

34.3 KB Created: 2021-07-05 15:24:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 85a817727d6245ef1030ad8fab5c0fa7 SHA-1: 1ad018d7d217a7841aa6e6baabba3931a2a6aef8 SHA-256: f3dd74a94be1998800d70962a0398341cc844513800a5dc36a9839cca1d44795
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/prison-life-roblox-hack-script-game-hack PDF link annotation
    • http://library.forda-mof.org/katalog/repository/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/ro-ghoul-script_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-play-minecraft-online-for-free_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/minecraft-free-download-windows_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-mod_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/cheat-roblox-aimbot_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-free-spins-facebook_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-hack-mod-apk-unlimited-spins_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-parkour-hack-2021_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/barren-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/hack-coin-master-android-2021_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-hack-tool-exe_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/download-cheat-for-roblox-counter-blox_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/who-type-of-roblox-hack-is-the-best_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F7C 22396 bytes
SHA-256: 5943e8064793be728c9e60914f4f97f198cc2e5ec74c39e9a4518b15d7782257
font_01_sfnt_off00006124.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6124 19024 bytes
SHA-256: 93a96803deb73cbd4580a454a623da3fcbe420e09646ab1742a564683f6b1a02

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