Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e11ecd9b4d63083…

MALICIOUS

PDF

35.6 KB Created: 2021-06-30 12:25:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: a80b34a7cf72c54f4faa3f66e160a04f SHA-1: 491898a4ad5038c83589f9d2c7623e25bcfab334 SHA-256: 3e11ecd9b4d6308350462b64a75384bb4077084f317889c88188cc49cc8ad895
102 Risk Score

Malware Insights

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

This PDF document contains a large number of external links, many of which point to files with names suggesting game cheats or exploits. The ML classifier strongly indicates maliciousness, and the document body reinforces this by including URLs that appear to be download links for such content. The primary attack pattern involves luring users to click these links, likely leading to the download of further malicious 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/new-roblox-exploit-wizard-simulator-hack-god-mode-autoattack-1.mp4-game-hack
    • http://sdn4-wates.sch.id/akasia/repository/free-robux-games-that-actually-work-2021_GM431946152.pdf
    • http://sdn4-wates.sch.id/akasia/repository/free-spin-coin-master-2021-link_GM406889139.pdf
    • http://sdn4-wates.sch.id/akasia/repository/adscend-media-free-robux_GM431946152.pdf
    • http://sdn4-wates.sch.id/akasia/repository/roblox-superhero-simulator-hack_GM431946152.pdf
    • http://sdn4-wates.sch.id/akasia/repository/coin-master-free-spins-link-download-free_GM406889139.pdf
    • http://sdn4-wates.sch.id/akasia/repository/how-to-hack-your-robux_GM431946152.pdf
    • http://sdn4-wates.sch.id/akasia/repository/free-gear-roblox-script-pastebin_GM431946152.pdf
    • http://sdn4-wates.sch.id/akasia/repository/old-roblox-hack_GM431946152.pdf
    • http://sdn4-wates.sch.id/akasia/repository/minecraft-112-hacked-client_GM479516143.pdf
    • http://sdn4-wates.sch.id/akasia/repository/will-minecraft-dungeons-be-free_GM479516143.pdf
    • http://sdn4-wates.sch.id/akasia/repository/how-to-get-minecraft-on-chromebook-for-free_GM479516143.pdf
    • http://sdn4-wates.sch.id/akasia/repository/cool-free-roblox-t-shirts_GM431946152.pdf
    • http://sdn4-wates.sch.id/akasia/repository/roblox-speed-hacks-free_GM431946152.pdf
    • http://sdn4-wates.sch.id/akasia/repository/roblox-crosshair-hack_GM431946152.pdf
    • http://sdn4-wates.sch.id/akasia/repository/free-robux-generator-2021-no-survey_GM431946152.pdf
    • http://sdn4-wates.sch.id/akasia/repository/roblox-obby-gives-free-robux_GM431946152.pdf
    • http://sdn4-wates.sch.id/akasia/repository/what-to-do-if-someone-hacks-your-roblox-account_GM431946152.pdf
    • http://sdn4-wates.sch.id/akasia/repository/roblox-character-free_GM431946152.pdf
    • http://sdn4-wates.sch.id/akasia/repository/roblox-free-play-on-google_GM431946152.pdf
    • http://sdn4-wates.sch.id/akasia/repository/how-to-hack-a-profile-on-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000308f.bin
f30823b047b5cb05cc75a8322bfc4de05a2a1c36212a15ed3e52af8c0386630a
pdf-font-stream PDF embedded font (sfnt) at offset 0x308F 22132 bytes
font_01_sfnt_off000061b5.bin
d75b9bc285b3316a1e4e8f0c725728a9793474d2ffd40bf7db462cab293ba549
pdf-font-stream PDF embedded font (sfnt) at offset 0x61B5 20504 bytes