Malicious PDF — malware analysis report

Static analysis result for SHA-256 da32fe16ff39d2d0…

MALICIOUS

PDF

34.4 KB Created: 2021-06-28 03:37:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 61080a3edf8cd76901a5e68dd3443709 SHA-1: 2e6ec2c3260431fb2ff53eca6ebf52596367de3a SHA-256: da32fe16ff39d2d0df85b515da0a9308558a5321907bd090b8e72757bc7d6b01
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple embedded URLs, with a primary focus on luring users with 'free game hack' promises related to Roblox. The ML classifier strongly flagged this PDF as malicious, and the heuristics indicate it's designed as a redirector to potentially malicious content. The document body, though partially garbled, reinforces the theme of game hacks and free in-game currency.

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.co/app/431946152/free-shaggy-old-roblox-game-hack PDF link annotation
    • http://digilib-ppsunisma.ac.id/repository/how-to-get-roblox-shirts-for-free_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-roblox-synapse-x_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-hack-latest-version-nerf-fps_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-50-robux-codes_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-roblox-avatar_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-robux-reedem-code_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-get-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/rbx-roblox-robux_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/100k-robux-free_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/competition-for-free-robux-no-lie-still-on_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-pins-for-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-high-school-for-free-to-play_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coin-master-hack-ios-12_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coin-master-cheat-engine-hack_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-hack-roblox-account-with-edit-this-cookie-2021_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-prison-life-v20-cheat-box_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-robux-no-apps-no-human-verification_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/80-free-spins-coin-master_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_off00002f12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F12 22476 bytes
SHA-256: 9ac330c0b4019cbdade62a4be440d9e36db38649e83e6ce3b1d67f512aab8583
font_01_sfnt_off00006128.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6128 19168 bytes
SHA-256: c6f9656bea46bb82ef170d37a565b4446a8d4c55e0f2233b9f0ff59102f3deb9

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