Malicious PDF — malware analysis report

Static analysis result for SHA-256 077ceb8ea8682bd7…

MALICIOUS

PDF

42.6 KB Created: 2021-06-13 20:26:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 6b4390fd5992964cf4eb51bedb8fed7d SHA-1: 46ead8b6bfa026e030b23d33554501b8f945f000 SHA-256: 077ceb8ea8682bd786aab14acadc05a2f468689c4aeaf072732c25658ad29347
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 repositories. The document body and extracted URLs suggest a lure for free game items, likely a phishing or malware distribution attempt. The ML classifier strongly indicates maliciousness, and the presence of external links points towards a potential download or redirection to a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/funny-free-roblox-shirts-game-hack
    • http://sdn4-wates.sch.id/akasia/repository/free-robux-websites-2021_GM431946152.pdf
    • http://sdn4-wates.sch.id/akasia/repository/how-do-you-get-free-pet-food-in-coin-master_GM406889139.pdf
    • http://sdn4-wates.sch.id/akasia/repository/nopde-engine-64-roblox-hacks-download_GM431946152.pdf
    • http://sdn4-wates.sch.id/akasia/repository/how-to-get-roblox-premium-for-free_GM431946152.pdf
    • http://sdn4-wates.sch.id/akasia/repository/free-gold-cards-for-coin-master_GM406889139.pdf
    • http://sdn4-wates.sch.id/akasia/repository/free-robux-com-no-verification_GM431946152.pdf
    • http://sdn4-wates.sch.id/akasia/repository/coin-master-free-spins-link-2021-hack_GM406889139.pdf
    • http://sdn4-wates.sch.id/akasia/repository/coins-master_GM406889139.pdf
    • http://sdn4-wates.sch.id/akasia/repository/blogspot-free-spins-coin-master_GM406889139.pdf
    • http://sdn4-wates.sch.id/akasia/repository/how-much-robux-can-you-get-with-1-million-dollars_GM431946152.pdf
    • http://sdn4-wates.sch.id/akasia/repository/free-robux-cards_GM431946152.pdf
    • http://sdn4-wates.sch.id/akasia/repository/roblox-super-power-training-simulator-free-vip-ser_GM431946152.pdf
    • http://sdn4-wates.sch.id/akasia/repository/reel-hack-for-roblox-jailbreak_GM431946152.pdf
    • http://sdn4-wates.sch.id/akasia/repository/free-minecraft-java-code_GM479516143.pdf
    • http://sdn4-wates.sch.id/akasia/repository/roblox-redeem-robux_GM431946152.pdf
    • http://sdn4-wates.sch.id/akasia/repository/free-apk-mods-coin-master_GM406889139.pdf
    • http://sdn4-wates.sch.id/akasia/repository/roblox-dumb-smart-cheater_GM431946152.pdf
    • http://sdn4-wates.sch.id/akasia/repository/coin-master-hack-cheat-engine_GM406889139.pdf
    • http://sdn4-wates.sch.id/akasia/repository/coin-master-hack-online-link_GM406889139.pdf
    • http://sdn4-wates.sch.id/akasia/repository/free-spins-on-coin-master-2021_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004877.bin
844427786d85066f6fe28376006f276f1a634b9c070b810c3797af9c35f9d91b
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4877 25496 bytes
font_01_sfnt_off0000832a.bin
151c25e9b086c1a23b5ffd5f2922b6008e587d0d83d4dd18922ff6b5e2f365df
pdf-font-stream PDF embedded font (sfnt) at offset 0x832A 18660 bytes