Malicious PDF — malware analysis report

Static analysis result for SHA-256 076684939e135e8c…

MALICIOUS

PDF

34.9 KB Created: 2021-06-19 20:10:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 703e237797eb2eb83b5671c052e559c0 SHA-1: 781093495e074776b41ba55de0038311d9f162a5 SHA-256: 076684939e135e8c3de50aaac9b1678842d42ffc16bae466eb9cf6e1c4baa732
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, primarily offering game-related cheats and hacks, which is a common lure for malware distribution. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates this malicious intent. While no scripts were explicitly extracted, the presence of embedded URLs and the overall nature of the lures suggest a phishing or malware delivery attempt, likely initiated via a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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-roblox-account-rich-ro-ghoul-game-hack PDF link annotation
    • http://gts.edu.gh/library/repository/roblox-free-muscle-shirt_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-hack-roblox-passwords_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/minecraft-dungeons-free-download-pc_GM479516143.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-long-is-the-minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-hack-roblox-with-cheat-engine-mac_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-minecraft-wallpaper_GM479516143.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/download-game-roblox-hack_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/minecraft-fly-hack_GM479516143.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-free-chest-link_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/robux-generator-hack-2021_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/bad-business-cheat-roblox_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/robux-com-free_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-bc-free-2021_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-coins-coin-master-hack_GM406889139.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_off0000326f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x326F 22084 bytes
SHA-256: 41eba8b672f868a9b77f634c8e8feaedd5d6ee835df32124bdf820379f26c8ea
font_01_sfnt_off00006345.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6345 19180 bytes
SHA-256: 3567af763f8fda456a447c6b22ee53cec19128dc4ad4e0440fb434a1a5fcc402

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