Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d6f80d89961370a…

MALICIOUS

PDF

34.9 KB Created: 2021-06-25 15:41:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: a0d20388255e2b51f70eac13f3c9da1e SHA-1: cb5c7bdb4679fcf436ba00db11ee07de5a1a700e SHA-256: 0d6f80d89961370a7c4aec5393e2cf6622bce0769ae4dec7ec52b6b2853c1528
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and references to game hacks and free items for popular games like Roblox and Coin Master. The primary link, http://netcdn.co/app/431946152/roblox-playset-for-free-shirts-game-hack, is flagged as a lure for game hacks. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a social engineering tactic to redirect users to potentially malicious sites for malware download or credential harvesting.

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/roblox-playset-for-free-shirts-game-hack PDF link annotation
    • https://www.zagorjeadventureteam.hr/files/roblox-hack-com_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/hacked-roblox-accounts-list_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/appbounty-hack-robux_GM431946152.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/free-headless-head-roblox_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/coin-master-game-hunter_GM406889139.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/how-to-hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/coin-master-hack-2021-iphone_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/appsmob-info-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/best-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/watch-ads-for-robux_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/get-free-robux-gg_GM431946152.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/lucky-patcher-coin-master-hack_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_off0000310d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x310D 22208 bytes
SHA-256: f1d18d4e8e254997c955e8edd30b331a4006a3b22698ac5b177d3f8e82d9fb98
font_01_sfnt_off0000627f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x627F 19372 bytes
SHA-256: 7dd73d7810da50030ac9ad5a32cf33b1c2e0ef45e9e5e6626a934020f099fc95