Malicious PDF — malware analysis report

Static analysis result for SHA-256 8880a7edf82453eb…

MALICIOUS

PDF

34.6 KB Created: 2021-07-05 16:16:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 2d6669138044c3a790b0922fd4f12644 SHA-1: 17f30b450299cf99bc7b8cce1fd533e7b947d929 SHA-256: 8880a7edf82453eb9906eeec3725c5673b009f3dce5da465e1cb4ff527308946
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/free-robux-gift-card-codes-game-hack PDF link annotation
    • http://www.elibrary.perludem.org/repository/roblox-free-gears-hat_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/cheat-roblox-v3rmillion_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/coin-master-hack-no-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/roblox-executor-free-download_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/youtube-free-roblox-account_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/lua-hack-scripts-roblox_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/how-to-hack-roblox-to-grt-robux-the-easy-way_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/coin-master-today_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/robux-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/roblox-fly-hack-2021_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/hack-for-robux-roblox_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/http-bitly-coin-master-free-2021-spins_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/roblox-free-robux-inspect-element-2021_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-hoodie-template-roblox_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-robux-2021-survay-pc_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/how-to-get-coin-master-card-free_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/free-roblox-followers-generator-2021_GM431946152.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_off00002f3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F3B 22684 bytes
SHA-256: e7b8fd55cce1efef4c08f3dabc40c29cfb691a987f079224d64e8b2e78887fc1
font_01_sfnt_off0000620c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x620C 19112 bytes
SHA-256: a9b7dd84bf9e82aea66064645c2f0ef7c8831366a8baade96afcbb6aebc803c0

Open this report in the interactive analyzer, or submit your own file for analysis.