Malicious PDF — malware analysis report

Static analysis result for SHA-256 49d5c30709fb5856…

MALICIOUS

PDF

49.1 KB Created: 2021-06-03 21:37:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2022-07-15
MD5: 7d134f2597958ecf0cbba885e856f020 SHA-1: c307ba33fe464b610d120096bd146d40264c23df SHA-256: 49d5c30709fb58562fa0401310c80ac136f9210c78eeed60f6b44ce9c4339489
102 Risk Score

Malware Insights

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

This PDF document employs a lure of "Roblox Hack Game" to entice users. It contains a large number of embedded external links, many of which are SEO-optimized PDF files, suggesting a link farm or redirection to malicious content. The presence of a "download button" heuristic further supports the malicious intent of directing users to external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.online/app/431946152/roblox-hack-game-game-hack
    • http://library.asih-husada.ac.id/repository/can-you-evolve-trade-pokemon-without-trading_GM1094591345.pdf
    • http://library.asih-husada.ac.id/repository/how-to-get-free-robux-fast-and-easy_GM431946152.pdf
    • http://library.asih-husada.ac.id/repository/real-hack-for-coin-master_GM406889139.pdf
    • http://library.asih-husada.ac.id/repository/roblox-hack-tool_GM431946152.pdf
    • http://library.asih-husada.ac.id/repository/roblox-character-free_GM431946152.pdf
    • http://library.asih-husada.ac.id/repository/how-to-get-free-spins-on-coin-master-game_GM406889139.pdf
    • http://library.asih-husada.ac.id/repository/best-roblox-hacks_GM431946152.pdf
    • http://library.asih-husada.ac.id/repository/can-i-hack-coin-master-with-lucky-patcher_GM406889139.pdf
    • http://library.asih-husada.ac.id/repository/free-links-for-coin-master_GM406889139.pdf
    • http://library.asih-husada.ac.id/repository/legit-coin-master-hack-no-human-verification_GM406889139.pdf
    • http://library.asih-husada.ac.id/repository/how-to-get-minecraft-for-free-on-tablet_GM479516143.pdf
    • http://library.asih-husada.ac.id/repository/roblox-promo-codes-free-robux_GM431946152.pdf
    • http://library.asih-husada.ac.id/repository/free-ways-to-get-robux_GM431946152.pdf
    • http://library.asih-husada.ac.id/repository/free-coin-master-coins_GM406889139.pdf
    • http://library.asih-husada.ac.id/repository/roblox-free-draw_GM431946152.pdf
    • http://library.asih-husada.ac.id/repository/coin-master-free-spin-link-app_GM406889139.pdf
    • http://library.asih-husada.ac.id/repository/can-u-get-free-robux_GM431946152.pdf
    • http://library.asih-husada.ac.id/repository/what-do-roblox-points-do_GM431946152.pdf
    • http://library.asih-husada.ac.id/repository/minecraft-pocket-edition-free-download_GM479516143.pdf
    • http://library.asih-husada.ac.id/repository/coin-master-apk-hack-download_GM406889139.pdf
    • https://www.mic
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005299.bin
1fbf4587a40b98eeb895e45ca0849ad78d2b1b7c3ad83acd7ecfb0ae04418395		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5299 28808 bytes
font_01_sfnt_off000092e1.bin
1d0cb1023eaa225682b8e7a2c8df4e4c96545ba7eedaf3d9844e51183e9ca189		 pdf-font-stream PDF embedded font (sfnt) at offset 0x92E1 2824 bytes
font_02_sfnt_off00009c8e.bin
ebafd2a9612b8145e5e0fd0fae0a522d36691e15007df27d7d415ea6fce26a90		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C8E 18440 bytes

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