Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc6c0d2458008ec0…

MALICIOUS

PDF

34.5 KB Created: 2021-07-01 14:18:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 8b8a8362937bb640c0a0586690916226 SHA-1: f5c4ffbabda018fd2169d166b2ae25f4a436fdbe SHA-256: dc6c0d2458008ec0eaf8ca3a6a402c36dc6ba84a81d5e68ebf59ba2ae9f64b91
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links and a primary external URL, all related to game hacks and virtual currency, suggesting a lure for users seeking cheats or exploits. The heuristic findings indicate a link farm designed for SEO poisoning and a machine learning model flagged the PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to redirect users to malicious sites or download further payloads.

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-hack-robux-descargar-game-hack
    • https://digilib.stieama.ac.id/repository/money-hack-roblox-jailbreak-download_GM431946152.pdf
    • https://digilib.stieama.ac.id/repository/password-free-roblox-accounts_GM431946152.pdf
    • https://digilib.stieama.ac.id/repository/free-candy-van-mesh-roblox_GM431946152.pdf
    • https://digilib.stieama.ac.id/repository/how-to-make-hacking-scripts-in-roblox_GM431946152.pdf
    • https://digilib.stieama.ac.id/repository/hack-account-roblox-2021_GM431946152.pdf
    • https://digilib.stieama.ac.id/repository/https-wwwfree-robuxcom-pc_GM431946152.pdf
    • https://digilib.stieama.ac.id/repository/how-to-download-minecraft-for-free-on-your-phone_GM479516143.pdf
    • https://digilib.stieama.ac.id/repository/roblox-gift-card-for-free_GM431946152.pdf
    • https://digilib.stieama.ac.id/repository/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdf
    • https://digilib.stieama.ac.id/repository/download-roblox-on-computer-free_GM431946152.pdf
    • https://digilib.stieama.ac.id/repository/how-to-get-free-tix-on-roblox-ipad_GM431946152.pdf
    • https://digilib.stieama.ac.id/repository/wurst-18-9_GM479516143.pdf
    • https://digilib.stieama.ac.id/repository/roblox-chat-cheats-on-rocitizens_GM431946152.pdf
    • https://digilib.stieama.ac.id/repository/how-to-look-cool-for-free-in-roblox_GM431946152.pdf
    • https://digilib.stieama.ac.id/repository/free-roblox-gift-card-codes-2021-junr_GM431946152.pdf
    • https://digilib.stieama.ac.id/repository/anime-girl-free-draw-2-roblox_GM431946152.pdf
    • https://digilib.stieama.ac.id/repository/roblox-cheat-engine-speed-hack-script_GM431946152.pdf
    • https://digilib.stieama.ac.id/repository/blox-piece-script-hack-roblox_GM431946152.pdf
    • https://digilib.stieama.ac.id/repository/how-to-make-a-minecraft-bedrock-server-for-free_GM479516143.pdf
    • https://digilib.stieama.ac.id/repository/moonactive-coin-master-hack_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ff8.bin
6e75731eab4d2fcf403fec74503084fe7e80320a5ac25fc110ec828d73b30cfb
pdf-font-stream PDF embedded font (sfnt) at offset 0x2FF8 22396 bytes
font_01_sfnt_off000061d7.bin
f943049d640eb221c5f7500e8288b50fabf1e2c191bd250a464d808ce17193ed
pdf-font-stream PDF embedded font (sfnt) at offset 0x61D7 18964 bytes