Malicious PDF — malware analysis report

Static analysis result for SHA-256 0003bc9b345a530a…

MALICIOUS

PDF

46.0 KB Created: 2021-06-11 12:35:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 0aa751b6f7909ac88f8db2e4846d7f40 SHA-1: b9c26f34377e5206b5aea640891bc0b9578802ea SHA-256: 0003bc9b345a530ade07bb48fc7af300fc0527e1b9ce72071601af2e777cd906
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many of which are SEO-optimized slugs related to hacking accounts or obtaining free virtual currency. The document body, though partially corrupted, contains a title and URL related to hacking Roblox accounts. The presence of a link farm and a high ML classifier score indicate malicious intent, likely to redirect users to phishing or malware sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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 https://netcdn.tw/app/431946152/how-to-hack-into-any-roblox-account-2021-game-hack
    • http://elearning-man2kotabogor.sch.id/__statics/gudangsoal/files/how-to-get-2021-robux-for-free-proof_GM431946152.pdf
    • http://elearning-man2kotabogor.sch.id/__statics/gudangsoal/files/free-robux-no-verification-or-survey_GM431946152.pdf
    • http://elearning-man2kotabogor.sch.id/__statics/gudangsoal/files/unendlich-robux-hack_GM431946152.pdf
    • http://elearning-man2kotabogor.sch.id/__statics/gudangsoal/files/free-robux-come_GM431946152.pdf
    • http://elearning-man2kotabogor.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-hack_GM431946152.pdf
    • http://elearning-man2kotabogor.sch.id/__statics/gudangsoal/files/free-followers-on-roblox-no-verification_GM431946152.pdf
    • http://elearning-man2kotabogor.sch.id/__statics/gudangsoal/files/how-to-download-roblox-on-xbox-360-for-free_GM431946152.pdf
    • http://elearning-man2kotabogor.sch.id/__statics/gudangsoal/files/can-people-hack-you-through-roblox_GM431946152.pdf
    • http://elearning-man2kotabogor.sch.id/__statics/gudangsoal/files/free-script-executor-lvl-7-roblox-5-18_GM431946152.pdf
    • http://elearning-man2kotabogor.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-no-survey-2021_GM431946152.pdf
    • http://elearning-man2kotabogor.sch.id/__statics/gudangsoal/files/how-to-hack-someones-roblox-using-a-link_GM431946152.pdf
    • http://elearning-man2kotabogor.sch.id/__statics/gudangsoal/files/minecraft-free-download-windows-10_GM479516143.pdf
    • http://elearning-man2kotabogor.sch.id/__statics/gudangsoal/files/minecraft-launcher-free_GM479516143.pdf
    • http://elearning-man2kotabogor.sch.id/__statics/gudangsoal/files/minecraft-hacks-wurst_GM479516143.pdf
    • http://elearning-man2kotabogor.sch.id/__statics/gudangsoal/files/roblox-pink-free-robux_GM431946152.pdf
    • http://elearning-man2kotabogor.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-downloading-apps_GM431946152.pdf
    • http://elearning-man2kotabogor.sch.id/__statics/gudangsoal/files/free-minecraft-hosting_GM479516143.pdf
    • http://elearning-man2kotabogor.sch.id/__statics/gudangsoal/files/an-app-that-gives-you-free-robux_GM431946152.pdf
    • http://elearning-man2kotabogor.sch.id/__statics/gudangsoal/files/free-robux-hack-2021-december_GM431946152.pdf
    • http://elearning-man2kotabogor.sch.id/__statics/gudangsoal/files/purchase-iteam-free-pastebin-roblox_GM431946152.pdf
    • https://collectrobux.co
    • https://www.bandicam.com
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005402.bin
30132122ab9d052a62182ea5c0a813022a15f17872780b7f5c3a89360845a041		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5402 25644 bytes
font_01_sfnt_off00008e7b.bin
f709c857235a077a5dce3d1b5bda002c084a12a2f96015a619d69c9ac280e0a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E7B 19172 bytes

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