Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6ec3e80a5aca372…

MALICIOUS

PDF

35.1 KB Created: 2021-06-30 04:16:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 2ca20a330e89dfbca61cf386de9bc455 SHA-1: 1ab560f5230ff7924b5b993931a16706ad2f6180 SHA-256: d6ec3e80a5aca372679d717ef2d209b001f99a81ac4ccb11687c8c64c3dae8de
102 Risk Score

Malware Insights

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

The PDF document contains numerous links to external websites, many of which are presented as downloads for game hacks and cheats. The ML classifier and the PDF link farm heuristic strongly indicate malicious intent. The document body and extracted URLs suggest a social engineering tactic to trick users into downloading potentially harmful files.

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/roblox-free-play-online-login-game-hack
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/roblox-hack-edit-leaderstats_GM431946152.pdf
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/robux-hack-without-human-verification-or-survey_GM431946152.pdf
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/roblox-how-to-get-free-gamepasses-2021_GM431946152.pdf
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/how-to-get-all-packages-for-free-on-roblox-2021_GM431946152.pdf
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/how-to-make-a-hack-game-in-roblox_GM431946152.pdf
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/give-me-free-robux_GM431946152.pdf
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/free-printable-minecraft-coloring-pages_GM479516143.pdf
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/free-robux-in-game-type-your-password_GM431946152.pdf
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/roblox-god-hack-download_GM431946152.pdf
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/free-robux-2021-pastebin_GM431946152.pdf
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/roblox-card-codes-hack_GM431946152.pdf
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/fabulous-2-roblox-hack_GM431946152.pdf
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/is-minecraft-java-edition-free_GM479516143.pdf
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/wil-they-cheat-roblox-thumbnail_GM431946152.pdf
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/hack-de-dinero-en-jailbreak-roblox_GM431946152.pdf
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-roblox_GM431946152.pdf
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/free-minecraft-server-maker_GM479516143.pdf
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/how-get-free-stuff-on-roblox_GM431946152.pdf
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/como-tener-cosas-gratis-en-roblox-hack_GM431946152.pdf
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/free-script-executor-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_off0000325f.bin
b337bda50c147839a90fd2bf6a51d73b602857fa170e29009d4e130546d8a764		 pdf-font-stream PDF embedded font (sfnt) at offset 0x325F 22288 bytes
font_01_sfnt_off00006425.bin
205792b049807e5d7f67c8cca121c5b13dc47ae714362270ca64864f087a8c90		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6425 19104 bytes

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