Malicious PDF — malware analysis report

Static analysis result for SHA-256 496f83e6094f1674…

MALICIOUS

PDF

34.8 KB Created: 2021-06-29 17:08:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: d31ae27e3eab5dc25f11d17800cf21fe SHA-1: 937139cdb28deb694b32eda06f59d4b92e8192ad SHA-256: 496f83e6094f16744e0861a771512ae1d567f33da32eba286263e2fef8d11e01
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious Link

The PDF document contains numerous embedded links, many of which are presented as download opportunities for game-related cheats and hacks. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, and the ML classifier strongly suggests maliciousness. The document body explicitly contains the URL http://netcdn.co/app/431946152/get-free-admin-commands-roblox-game-hack, which likely serves as a lure for downloading a secondary payload.

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-admin-commands-roblox-game-hack
    • http://www.alrashed-alsaleh.com/userfiles/files/how-to-get-free-spins-on-coin-master-2021-links_GM406889139.pdf
    • http://www.alrashed-alsaleh.com/userfiles/files/minecraft-texture-packs-free-download_GM479516143.pdf
    • http://www.alrashed-alsaleh.com/userfiles/files/coin-master-free-spins-cheat-deutsch_GM406889139.pdf
    • http://www.alrashed-alsaleh.com/userfiles/files/free-spins-coin-master-app_GM406889139.pdf
    • http://www.alrashed-alsaleh.com/userfiles/files/coin-master-spin-hack-no-human-verification_GM406889139.pdf
    • http://www.alrashed-alsaleh.com/userfiles/files/roblox-jailbreak-how-to-get-bugatti-for-free_GM431946152.pdf
    • http://www.alrashed-alsaleh.com/userfiles/files/pubg-uc-buy-bd_GM1330123889.pdf
    • http://www.alrashed-alsaleh.com/userfiles/files/minecraft-hacks-pc_GM479516143.pdf
    • http://www.alrashed-alsaleh.com/userfiles/files/roblox-sword-fighting-tournament-hack_GM431946152.pdf
    • http://www.alrashed-alsaleh.com/userfiles/files/how-to-get-minecraft-pocket-edition-for-free_GM479516143.pdf
    • http://www.alrashed-alsaleh.com/userfiles/files/coin-master-free-coins-facebook_GM406889139.pdf
    • http://www.alrashed-alsaleh.com/userfiles/files/game-give-free-robux_GM431946152.pdf
    • http://www.alrashed-alsaleh.com/userfiles/files/free-robux-generator-com-roblox-hack_GM431946152.pdf
    • http://www.alrashed-alsaleh.com/userfiles/files/coin-master-free-spin-links-december-30-2021_GM406889139.pdf
    • http://www.alrashed-alsaleh.com/userfiles/files/how-to-hack-peoples-roblox-accounts-2021_GM431946152.pdf
    • http://www.alrashed-alsaleh.com/userfiles/files/pubg-uc-malaysia-murah_GM1330123889.pdf
    • http://www.alrashed-alsaleh.com/userfiles/files/best-free-minecraft-server-hosting-reddit_GM479516143.pdf
    • http://www.alrashed-alsaleh.com/userfiles/files/free-robux-groups-2021_GM431946152.pdf
    • http://www.alrashed-alsaleh.com/userfiles/files/free-robux-hack-no-human-verification_GM431946152.pdf
    • http://www.alrashed-alsaleh.com/userfiles/files/coin-master-free-spins-link-today_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030e5.bin
ec8d2a9eda41e455115cb8c814dd645176d16778b81073413d3ab2511cd6a8d6
pdf-font-stream PDF embedded font (sfnt) at offset 0x30E5 22228 bytes
font_01_sfnt_off00006254.bin
b4461986dfb0ab31d6aef0c4331159f91debfc264ff876640fe86dfffd4d3ca9
pdf-font-stream PDF embedded font (sfnt) at offset 0x6254 19308 bytes