Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a67c16b138ec03d…

MALICIOUS

PDF

35.5 KB Created: 2021-06-27 05:13:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 966d2ffe145d6395a70e7b1a44549a1d SHA-1: 59e207da79e3fa7c59562520209221a149130dd2 SHA-256: 6a67c16b138ec03d344170f646ba736b3db81bcb62e20f69eac41d6a4af2cdd0
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains numerous links to external websites, many of which are SEO-optimized and related to game hacks and cheats. The ML classifier strongly indicated maliciousness, and the presence of a download button lure suggests a deceptive workflow. The primary goal appears to be directing users to potentially malicious sites for game-related exploits or scams.

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/the-community-roblox-hacker-game-hack
    • http://library.patria-artha.ac.id/repository/coin-master-free-spins-link-today-haktuts_GM406889139.pdf
    • http://library.patria-artha.ac.id/repository/how-to-get-a-free-gamepass-on-roblox_GM431946152.pdf
    • http://library.patria-artha.ac.id/repository/roblox-cheat-engine-god_GM431946152.pdf
    • http://library.patria-artha.ac.id/repository/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdf
    • http://library.patria-artha.ac.id/repository/free-robux-hack-generator-no-human-verification_GM431946152.pdf
    • http://library.patria-artha.ac.id/repository/how-to-use-speed-hack-in-roblox_GM431946152.pdf
    • http://library.patria-artha.ac.id/repository/coin-master-free-spins-haktuts_GM406889139.pdf
    • http://library.patria-artha.ac.id/repository/how-do-you-hack-roblox_GM431946152.pdf
    • http://library.patria-artha.ac.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdf
    • http://library.patria-artha.ac.id/repository/pubg-uc-account_GM1330123889.pdf
    • http://library.patria-artha.ac.id/repository/minecraft-free-download-chromebook_GM479516143.pdf
    • http://library.patria-artha.ac.id/repository/moonactive-free-spins_GM406889139.pdf
    • http://library.patria-artha.ac.id/repository/free-spin-coin-master-hacktoman_GM406889139.pdf
    • http://library.patria-artha.ac.id/repository/roblox-twisted-murderer-free-credits-giveaway_GM431946152.pdf
    • http://library.patria-artha.ac.id/repository/descargar-roblox-hack-robux-para-pc_GM431946152.pdf
    • http://library.patria-artha.ac.id/repository/robux-match_GM431946152.pdf
    • http://library.patria-artha.ac.id/repository/hacks-for-roblox-for-craftwars_GM431946152.pdf
    • http://library.patria-artha.ac.id/repository/free-coin-master-cards_GM406889139.pdf
    • http://library.patria-artha.ac.id/repository/coin-master-game-free-play-online_GM406889139.pdf
    • http://library.patria-artha.ac.id/repository/how-to-change-roblox-username-for-free-2021-mobilr_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030d5.bin
0e26618b21cd040e2912f350864b8308b5e2eed1d92b787d0cc33ac1bdf02cbc
pdf-font-stream PDF embedded font (sfnt) at offset 0x30D5 22804 bytes
font_01_sfnt_off00006437.bin
d5b1a4139fb07fe72bac13aaae05f999b9ac8e6dee8be6f01d9736859c623751
pdf-font-stream PDF embedded font (sfnt) at offset 0x6437 19628 bytes