Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2edc405b5a8f3b4…

MALICIOUS

PDF

33.6 KB Created: 2021-06-29 17:03:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 5e1672a29d2c0db1d324d90ee2a65a44 SHA-1: ac491276d1a77759360b5f4b736c8d6f1861ca68 SHA-256: a2edc405b5a8f3b40cdba2a361cd8f8c861a4596eda2b51a769d685ffae24396
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a document body that promotes free Robux and game hacks, indicating a phishing or scam attempt. The heuristic firings confirm the presence of external URIs and a link farm, suggesting the document is designed to redirect users to malicious websites. No scripts were extracted from this sample, but the overall structure and content strongly suggest a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/get-free-robux-com-game-hack
    • http://psb.sd-alazhar29.sch.id/repository/roblox-hacks-for-mac_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/how-to-execute-code-with-cheat-engine-on-roblox_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/today-coin-master-spin-free_GM406889139.pdf
    • http://psb.sd-alazhar29.sch.id/repository/free-robux-without-human-verification-2021_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/best-free-minecraft-texture-packs_GM479516143.pdf
    • http://psb.sd-alazhar29.sch.id/repository/coin-master-free-coins-and-spins_GM406889139.pdf
    • http://psb.sd-alazhar29.sch.id/repository/anime-tycoon-hack-roblox_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/how-to-hack-roblox-accounts-with-pastebin_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/coin-master-hack-download-2021_GM406889139.pdf
    • http://psb.sd-alazhar29.sch.id/repository/roblox-account-hack-created-by-zero_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/roblox-free-robux-no-verification_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/roblox-new-free-shirt-template_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/hack-de-roblox-2021_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/robux-hack-real-one_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/moon-static-coin-master-generator-hacks-free_GM406889139.pdf
    • http://psb.sd-alazhar29.sch.id/repository/coin-master-free-coins-amp_GM406889139.pdf
    • http://psb.sd-alazhar29.sch.id/repository/how-to-get-free-money-roblox-vehicle-simulator_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/roblox-source_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/8-bit-speed-hack-roblox_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/get-me-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_off00002ddb.bin
387c0cb39ecaf149c47b2d134fb45edd5739789362557c9f6a2b57bf4f64aad7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2DDB 21796 bytes
font_01_sfnt_off00005df0.bin
bd48df5b3587c62f460ac4547970d78652d76b982da8f06603591dccd4bca80f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DF0 19080 bytes

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