Malicious PDF — malware analysis report

Static analysis result for SHA-256 12dbb1e67eff62e4…

MALICIOUS

PDF

34.8 KB Created: 2021-06-26 14:21:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 8e9ab441cd105c53ec6edc09d1bb548a SHA-1: 30934fdf6fcd822b1ce2c608d5f68354a84eb014 SHA-256: 12dbb1e67eff62e4fc67aaa7fa195e9aac509369e8752b96d516cbc2f85ef3a0
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links to external websites, many of which are structured as SEO-optimized PDF links, suggesting a link farm or content-loading mechanism. The document body and extracted URLs indicate a lure related to 'Roblox' game hacks and free items, likely intended to trick users into downloading malware or visiting malicious sites. The ML classifier also strongly flagged this PDF as malicious.

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/roblox-how-to-get-the-animal-hoodies-free-game-hack
    • https://prom2m.ru/wp-content/uploads/fsqm-files/how-to-get-your-hacked-acc-back-roblox_GM431946152.pdf
    • https://prom2m.ru/wp-content/uploads/fsqm-files/roblox-birthday-invitation-free_GM431946152.pdf
    • https://prom2m.ru/wp-content/uploads/fsqm-files/roblox-apk-hack-download_GM431946152.pdf
    • https://prom2m.ru/wp-content/uploads/fsqm-files/free-money-on-jalbreak-roblox_GM431946152.pdf
    • https://prom2m.ru/wp-content/uploads/fsqm-files/what-is-the-best-roblox-hack-youtuber_GM431946152.pdf
    • https://prom2m.ru/wp-content/uploads/fsqm-files/how-to-set-skybox-roblox-hack_GM431946152.pdf
    • https://prom2m.ru/wp-content/uploads/fsqm-files/free-robux-generator-only-enter-password_GM431946152.pdf
    • https://prom2m.ru/wp-content/uploads/fsqm-files/free-robux-pastebin_GM431946152.pdf
    • https://prom2m.ru/wp-content/uploads/fsqm-files/glitches-for-free-hair-roblox_GM431946152.pdf
    • https://prom2m.ru/wp-content/uploads/fsqm-files/roblox-free-items-2021_GM431946152.pdf
    • https://prom2m.ru/wp-content/uploads/fsqm-files/top-10-free-robux-sites-that-actually-worked_GM431946152.pdf
    • https://prom2m.ru/wp-content/uploads/fsqm-files/roblox-lumber-tycoon-2-grief-hack_GM431946152.pdf
    • https://prom2m.ru/wp-content/uploads/fsqm-files/free-robux-hack-not-fake_GM431946152.pdf
    • https://prom2m.ru/wp-content/uploads/fsqm-files/free-building-games-on-roblox_GM431946152.pdf
    • https://prom2m.ru/wp-content/uploads/fsqm-files/free-robux-scam-message_GM431946152.pdf
    • https://prom2m.ru/wp-content/uploads/fsqm-files/chrome-web-store-roblox-hacks_GM431946152.pdf
    • https://prom2m.ru/wp-content/uploads/fsqm-files/free-russia-sign-roblox-pls-freeeeee_GM431946152.pdf
    • https://prom2m.ru/wp-content/uploads/fsqm-files/minecraft-bedrock-edition-download-pc-free_GM479516143.pdf
    • https://prom2m.ru/wp-content/uploads/fsqm-files/hack-para-obtener-robux-gratis_GM431946152.pdf
    • https://prom2m.ru/wp-content/uploads/fsqm-files/how-to-be-all-black-in-roblox-free_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003027.bin
a307ec097b4ec04ff54c882270d05dfa3ccabf6fe0ddd4b9849a2a5db9f4be59
pdf-font-stream PDF embedded font (sfnt) at offset 0x3027 22228 bytes
font_01_sfnt_off0000617c.bin
1378dffb62a2fc921b2224e233471eb96015057717c3210811a19a3962cc296e
pdf-font-stream PDF embedded font (sfnt) at offset 0x617C 19640 bytes