Malicious PDF — malware analysis report

Static analysis result for SHA-256 c522375838a5a757…

MALICIOUS

PDF

33.5 KB Created: 2021-07-05 16:10:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 8731677008aa9356853ee90205dd6c1f SHA-1: 1d3829e049419b0cee364c3007b7dafc27bc5a7c SHA-256: c522375838a5a757ee537899c70883c582974a8f289ebc942f332deb1452c551
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains numerous embedded URLs, many pointing to IP addresses, that are disguised as game hacks or cheats. The ML classifier strongly indicates maliciousness, and the presence of these lures suggests an attempt to trick users into downloading malware. No scripts were extracted from this sample, but the overall pattern is consistent with a phishing or malware distribution lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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/835599320/tiktok-free-song-game-hack
    • http://111.68.26.74/widyapustaka/repository/how-to-hack-coins-in-archery-master-3d_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/robux-hack-no-verification-or-survey_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/mod-pack-for-free-for-roblox_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/get-robux-for-free-on-your-browser_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-robux-flame-gg_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-gold-cards-coin-master_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/www-roblox-games-free-com_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/roblox-mad-city-hack-rank-april_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/atlantis-overlord-bubble-gum-simulator-cheat-code-roblox_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-coins-coin-master-2021_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/hack-bloxburg-roblox_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/coin-master-hack-spin-link_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/rblx-city-free-robux_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-robux-codes-that-work_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-free-robux_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/anyone-use-roblox-hacks_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/roblox-free-robux_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-hack-into-accounts-in-roblox-2021_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-become-a-real-hacker-in-roblox_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/roblox-ninja-legends-hack-pets_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f7d.bin
3d919b5132947fe6764ff09c82737e6163c041af4d9803fd41609f5c2de2d57b
pdf-font-stream PDF embedded font (sfnt) at offset 0x2F7D 22264 bytes
font_01_sfnt_off00006102.bin
4f41a340c6080c232c0a2ea2e5c15eb842a1a4886f7ff2ce27f4cb784f220bf7
pdf-font-stream PDF embedded font (sfnt) at offset 0x6102 17972 bytes