Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2d2ff8266ec91b0…

MALICIOUS

PDF

46.6 KB Created: 2021-05-13 20:03:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 9e89f1a05d86a1120642dfb27dd7367e SHA-1: 264f892b0297b9187b2f3922fd93027ee72fd1b3 SHA-256: d2d2ff8266ec91b01e12c35fee50c4cd0d595f990664a41d754ad3ee8734a2d5
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links to external websites, many of which are disguised as download pages for popular games and in-game currency. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of these links, suggesting a coordinated effort to direct users to potentially malicious content. The presence of a 'SE_PASSWORD_ARCHIVE_LURE' heuristic suggests that the linked content might be an archive requiring a password, a common tactic to bypass security filters.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.xyz/app/479516143/minecraft-1.14-4-download-game-hack
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/how-do-you-get-free-robux_GM431946152.pdf
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/microsoft-free-robux_GM431946152.pdf
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/minecraft-maps-pe-free-download_GM479516143.pdf
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/free-robux-2021-no-verification_GM431946152.pdf
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/free-spins-coin-master-october-13-2021_GM406889139.pdf
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/websites-to-get-free-robux_GM431946152.pdf
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/coin-master-free-spins-hack-apk-download_GM406889139.pdf
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/coin-master-hack-spin-160-pro_GM406889139.pdf
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/coin-master-hack-without-verification-for-iphone_GM406889139.pdf
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/minecraft-windows-10-mod-menu_GM479516143.pdf
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/minecraft-java-server-hosting-free_GM479516143.pdf
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/free-texture-packs-for-minecraft-pe_GM479516143.pdf
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/free-robux-sites-that-work_GM431946152.pdf
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/roblox-shirt-template-free_GM431946152.pdf
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/how-do-u-hack-roblox_GM431946152.pdf
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/oprewards-login_GM431946152.pdf
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-pc_GM431946152.pdf
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-today-twitter_GM406889139.pdf
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/coin-master-fun-hack-online_GM406889139.pdf
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/kachifpro_GM406889139.pdf
    • http://www.freenom.comHey
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004dba.bin
aff4df48be860a933663856e29d4e9216df2a7374954f060bfc7d85080b0b40f		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DBA 25804 bytes
font_01_sfnt_off00008821.bin
3811f2fb1880daf4953efcc9c7427d9b438bced237490b00be4a6ec3ecea79e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8821 3092 bytes
font_02_sfnt_off000092cc.bin
6d95bb5e0251b920a9764ccc918690a910b4901eebdf6c0878bf0d7e0e2360a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x92CC 18524 bytes

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