Malicious PDF — malware analysis report

Static analysis result for SHA-256 8cf22a22470e2b66…

MALICIOUS

PDF

34.4 KB Created: 2021-06-26 09:58:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: e2bf024c3bd767515989710142de7084 SHA-1: 099c15cd8e34a398cae4dd2d0e3fa93c710918d0 SHA-256: 8cf22a22470e2b66484d0edb59c9e601ff6ebead680abbd71747f783f320f776
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of embedded links, many of which are SEO-optimized and point to pages promising free in-game items or cheats. The primary URL, http://netcdn.co/app/431946152/groups-with-free-stufff-droups-roblox-game-hack, is likely a landing page for a scam or malware distribution. The ML classifier strongly indicated maliciousness, and the presence of a 'download button' heuristic further supports a malicious intent.

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/groups-with-free-stufff-droups-roblox-game-hack
    • http://www.hlad.hr/files/free-minecraft-realms-to-join_GM479516143.pdf
    • http://www.hlad.hr/files/juego-hackeado-de-coin-master_GM406889139.pdf
    • http://www.hlad.hr/files/free-robux-games-that-actually-work_GM431946152.pdf
    • http://www.hlad.hr/files/free-robux-clothes_GM431946152.pdf
    • http://www.hlad.hr/files/how-to-get-free-robux-no-human-verification_GM431946152.pdf
    • http://www.hlad.hr/files/free-robux-hack_GM431946152.pdf
    • http://www.hlad.hr/files/how-to-hack-roblox-accounts_GM431946152.pdf
    • http://www.hlad.hr/files/how-to-get-free-snacks-in-coin-master_GM406889139.pdf
    • http://www.hlad.hr/files/today-coin-master-spin-free_GM406889139.pdf
    • http://www.hlad.hr/files/60-free-spins-on-coin-master_GM406889139.pdf
    • http://www.hlad.hr/files/free-robux-sites-that-work_GM431946152.pdf
    • http://www.hlad.hr/files/how-to-get-free-robux-on-mobile_GM431946152.pdf
    • http://www.hlad.hr/files/minecraft-build-hacks_GM479516143.pdf
    • http://www.hlad.hr/files/coin-master-free-spins-that-really_GM406889139.pdf
    • http://www.hlad.hr/files/free-roblox-generator_GM431946152.pdf
    • http://www.hlad.hr/files/coin-master-2021-free-spins-link-blogspot_GM406889139.pdf
    • http://www.hlad.hr/files/games-voody-free-robux_GM431946152.pdf
    • http://www.hlad.hr/files/roblox-glitches-and-cheats-for-lumber-tycoon_GM431946152.pdf
    • http://www.hlad.hr/files/coin-master-hack-tool-india_GM406889139.pdf
    • http://www.hlad.hr/files/coin-master-free-spins-daily-link-game-mod_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f03.bin
7e5a1b88306028b0a915948e0712a8982c603e5129a69d96bb036a5e5fe602bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F03 21884 bytes
font_01_sfnt_off00005f5b.bin
a1bc05742678d9d8388e4cca2da12661b89baf85d8fc414959f921b0e6d5c09f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F5B 19720 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.