Malicious PDF — malware analysis report

Static analysis result for SHA-256 beb99f38eaad0859…

MALICIOUS

PDF

36.0 KB Created: 2021-06-28 02:42:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 0f35273860b28964e07a37dd719eabfc SHA-1: f2da301c5b9f848e8b58d09e43a814aaf60403cb SHA-256: beb99f38eaad085953fd2f82ccdceb6e812ecb795fd6586106041f429f475ead
102 Risk Score

Malware Insights

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

The PDF document contains numerous external links, many of which are presented as download opportunities for game hacks. The ML classifier strongly indicates maliciousness, and the presence of a 'download button' heuristic further supports a malicious intent to trick users into downloading potentially harmful files. The document body and extracted URLs suggest a lure for game-related exploits.

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/how-to-hack-your-friends-roblox-account-on-ipad-game-hack
    • http://cintabaca.org/katalog/repository/how-to-hack-roblox-accounts-for-robux_GM431946152.pdf
    • http://cintabaca.org/katalog//repository/coin-master-free-spins-2021_GM406889139.pdf
    • http://cintabaca.org/katalog//repository/pokemon-go-free-100-iv-coordinates_GM1094591345.pdf
    • http://cintabaca.org/katalog//repository/fighting-free-card-coin-master_GM406889139.pdf
    • http://cintabaca.org/katalog/repository/free-robux-gift-card-generator_GM431946152.pdf
    • http://cintabaca.org/katalog//repository/jailbreak-roblox-hack_GM431946152.pdf
    • http://cintabaca.org/katalog/repository/how-to-get-free-spins-on-coin-master-android_GM406889139.pdf
    • http://cintabaca.org/katalog/repository/how-to-hack-coin-master-game_GM406889139.pdf
    • http://cintabaca.org/katalog/repository/roblox-auto-clicker-free_GM431946152.pdf
    • http://cintabaca.org/katalog//repository/roblox-free-roblox_GM431946152.pdf
    • http://cintabaca.org/katalog/repository/hack-in-roblox-como-hackear-roblox_GM431946152.pdf
    • http://cintabaca.org/katalog/repository/roblox-free-robux-codes-wiki_GM431946152.pdf
    • http://cintabaca.org/katalog/repository/roblox-pedo-van-hack_GM431946152.pdf
    • http://cintabaca.org/katalog//repository/roblox-rape_GM431946152.pdf
    • http://cintabaca.org/katalog/repository/how-to-get-free-cards-on-coin-master_GM406889139.pdf
    • http://cintabaca.org/katalog/repository/roblox-how-to-get-free-robux-in-2021_GM431946152.pdf
    • http://cintabaca.org/katalog//repository/coin-master-free-spins-link-cheat_GM406889139.pdf
    • http://cintabaca.org/katalog/repository/coin-master-hack-mod-apk-android-1_GM406889139.pdf
    • http://cintabaca.org/katalog/repository/coin-master-reward-link_GM406889139.pdf
    • http://cintabaca.org/katalog/repository/prison-life-roblox-hacks_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032a5.bin
1028139267c9de0beca9684c5a719cb3d830850040ef0690ec74985a4ce233fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x32A5 22752 bytes
font_01_sfnt_off0000657d.bin
64c48c058b2d4598c5845d57132863d28cb0bd84a6e4e5b77e7a2c6ce6fb0792		 pdf-font-stream PDF embedded font (sfnt) at offset 0x657D 19860 bytes

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