Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f06ac4378bcfbdf…

MALICIOUS

PDF

43.0 KB Created: 2021-05-12 07:06:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: ee76c8c389fb1f216bf5f154b701650a SHA-1: e5b17942a86bf9a2e069c91fd6429a6f049dcb47 SHA-256: 7f06ac4378bcfbdf0a4cb66470b1a7b7232e96326f8be96f55aab7cc6b15875c
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a lure in the document body promising 'Free Robux' and game-related cheats. The ML classifier strongly indicated maliciousness, and the presence of external URIs, including one pointing to a raw IP address, suggests the document is designed to redirect users to malicious sites for downloading further payloads. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9957

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 https://netcdn.xyz/app/431946152/free-robux-no-downloading-apps-game-hack
    • http://111.68.26.74/widyapustaka/repository/coin-master-free-spins-and-coins-group_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/coin-master-free-link-2021_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/free-robux-gift-card-generator_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/coin-master-hack-progamers_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/coin-master-free-spins-haktuts_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-buy-robux-for-free_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/coin-master-free-spins-link-2021-iphone_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/coin-master-free-cards-link_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/get-free-roblox_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/lastrick-com-coin-master-hack_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/robux-free-2021_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-spins-from-coin-master_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-hack-people-in-roblox_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/coin-master-hack-app-link_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/script-executor-roblox-free_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-get-free-robux-no-survey_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/robux-hacks-2021_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-robux-websites-2021_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/get-more-robux_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/ways-to-get-free-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000049b8.bin
e770f3e5234c4bbe1bf2ac143af54de84f7bb0cdb2b316daee9c1f269df8cd3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x49B8 24604 bytes
font_01_sfnt_off0000825d.bin
49b6dfa9b56ae39db803e39cb2f1ecc2093e69bc279e239e32c5359198169209
pdf-font-stream PDF embedded font (sfnt) at offset 0x825D 19404 bytes