Malicious PDF — malware analysis report

Static analysis result for SHA-256 1cead7a5447c33ef…

MALICIOUS

PDF

34.6 KB Created: 2021-07-01 13:21:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 4a43bbd1269fb426c455362e469c106a SHA-1: a2ecd9ebf77a2181d0d31439b479bec4335fa217 SHA-256: 1cead7a5447c33ef640da496204058e837608244550c7a3316bbd28e46040ef2
102 Risk Score

Malware Insights

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

This PDF document was flagged by a machine learning classifier as malicious and contains a large number of external links, many of which are SEO-optimized PDFs related to game hacks and currency generators. The document body also contains a direct link to a potential download, suggesting a lure to download malicious content or visit a phishing site.

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/free-yellow-roblox-girl-hair-game-hack
    • http://psb.sd-alazhar29.sch.id/repository/coin-master-free-spins-generator-no-human-verification_GM406889139.pdf
    • http://psb.sd-alazhar29.sch.id/repository/how-to-have-free-robux-2021-and-exemple_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/free-robux-codes-november-2021_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/como-hackear-juego-coin-master_GM406889139.pdf
    • http://psb.sd-alazhar29.sch.id/repository/how-to-get-free-robux-inspect_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/speed-hack-roblox-2021_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/roblox-generator-for-free_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/youtube-robux-hacks-2021_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/how-to-get-robux-for-free-2021-july_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/how-to-hack-someones-account-on-roblox-2021-february-2_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/android-hacks-roblox_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/get-coin-master-cards-free_GM406889139.pdf
    • http://psb.sd-alazhar29.sch.id/repository/coin-master-free-spin-whatsapp-group-link_GM406889139.pdf
    • http://psb.sd-alazhar29.sch.id/repository/ultimate-free-spins-coin-master_GM406889139.pdf
    • http://psb.sd-alazhar29.sch.id/repository/free-spin-app-for-coin-master_GM406889139.pdf
    • http://psb.sd-alazhar29.sch.id/repository/roblox-script-for-games-hack_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/free-24-7-minecraft-server_GM479516143.pdf
    • http://psb.sd-alazhar29.sch.id/repository/roblox-free-robux-no-human-verification_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/how-often-pokemon-go-free-download_GM1094591345.pdf
    • http://psb.sd-alazhar29.sch.id/repository/how-to-get-free-robux-2021-easy_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000306a.bin
16e8a283953c73cb9b03d624c4d0e1d9b1524dcbee95b4f6e7594276d66aa094		 pdf-font-stream PDF embedded font (sfnt) at offset 0x306A 22444 bytes
font_01_sfnt_off00006242.bin
b8137432fc5ed22c31240a0f625c0fc34ee3cb3eed21771d7b034eb2f97f26a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6242 19096 bytes

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