Malicious PDF — malware analysis report

Static analysis result for SHA-256 273e85277f37c701…

MALICIOUS

PDF

34.9 KB Created: 2021-06-30 08:49:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 26b74bfcca9d80cc55ae44a726ed0ea1 SHA-1: 8682d5836cda9b4d4cff1ad4f0826f58041f28a0 SHA-256: 273e85277f37c701cac80d8a40b83a5220c2e8701163fb8bed2953518514df2f
102 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, forming a link farm related to game hacks and cheats. The primary URL http://netcdn.co/app/431946152/pastebin-roblox-robux-hack-2021-game-hack likely serves as a landing page or download source for malicious content. The heuristic 'PDF_SEO_LINK_FARM' indicates a deliberate attempt to create a large number of related links, suggesting a phishing or malware distribution scheme.

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/pastebin-roblox-robux-hack-2021-game-hack
    • https://tanahlot.id/assets/CKImages/files/coin-master-free-coins-and-spins-link_GM406889139.pdf
    • https://tanahlot.id/assets/CKImages/files/roblox-booga-booga-hacks-no-script-needed_GM431946152.pdf
    • https://tanahlot.id/assets/CKImages/files/coin-master-game-hack-version-download_GM406889139.pdf
    • https://tanahlot.id/assets/CKImages/files/rblx-gg-free-robux_GM431946152.pdf
    • https://tanahlot.id/assets/CKImages/files/how-to-hack-for-2021-robux_GM431946152.pdf
    • https://tanahlot.id/assets/CKImages/files/counter-blox-roblox-offensive-cheat_GM431946152.pdf
    • https://tanahlot.id/assets/CKImages/files/coin-master-daily-free-spins-link-2021_GM406889139.pdf
    • https://tanahlot.id/assets/CKImages/files/coin-master-hack-android-root_GM406889139.pdf
    • https://tanahlot.id/assets/CKImages/files/free-robux-generator-for-kids_GM431946152.pdf
    • https://tanahlot.id/assets/CKImages/files/haktuts-coin-master-free-daily-spins_GM406889139.pdf
    • https://tanahlot.id/assets/CKImages/files/free-chest-coin-master_GM406889139.pdf
    • https://tanahlot.id/assets/CKImages/files/how-to-hack-minecraft-pe_GM479516143.pdf
    • https://tanahlot.id/assets/CKImages/files/is-it-okay-to-use-free-models-in-roblox_GM431946152.pdf
    • https://tanahlot.id/assets/CKImages/files/free-robux-survey_GM431946152.pdf
    • https://tanahlot.id/assets/CKImages/files/lua-cheat-engine-roblox_GM431946152.pdf
    • https://tanahlot.id/assets/CKImages/files/mad-fucker-roblox-hack_GM431946152.pdf
    • https://tanahlot.id/assets/CKImages/files/coin-master-free_GM406889139.pdf
    • https://tanahlot.id/assets/CKImages/files/microsoft-bing-free-robux_GM431946152.pdf
    • https://tanahlot.id/assets/CKImages/files/roblox-points_GM431946152.pdf
    • https://tanahlot.id/assets/CKImages/files/free-roblox-animations_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031be.bin
0289c25d478d5e3c1f2d600929d7e10671bdc322c8d7f2b76715bd212733de01
pdf-font-stream PDF embedded font (sfnt) at offset 0x31BE 21888 bytes
font_01_sfnt_off000061e4.bin
1649b75e3d221cdf162131fd1c7d09b8206712b1ec5ac82b29a30eaa0d76c041
pdf-font-stream PDF embedded font (sfnt) at offset 0x61E4 19576 bytes