Malicious PDF — malware analysis report

Static analysis result for SHA-256 6008dab195d337a7…

MALICIOUS

PDF

37.0 KB Created: 2021-07-06 05:54:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 625d44fa1b46abd47eb5c15b1eb26683 SHA-1: 24bdfc3fe71a851576c6ec2f9a727fce8e18409b SHA-256: 6008dab195d337a71f277a34f2deb09d499240fc7fd2bfc53da44dde586563c8
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 related to game cheats and hacks for popular games like Coin Master and Roblox. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of these links, suggesting a malicious intent to drive traffic to potentially harmful sites. The ML classifier also strongly flagged this PDF as malicious.

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.tw/app/406889139/coin-master-daily-free-spins-link-today-2021-game-hack
    • http://perpustakaan.sman2bondowoso.sch.id/repository/free-robux-hacker-us_GM431946152.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/free-robux-no-human-verification-generator_GM431946152.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/how-do-you-hack-to-get-robux-on-roblox_GM431946152.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/coin-master-hack-without-downloading-apps_GM406889139.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/free-roblox-promo-codes-2021-not-expired_GM431946152.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/how-to-change-your-roblox-username-for-free-no-hack_GM431946152.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/free-robux-games-that-actually-work-2021_GM431946152.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/how-to-hack-roblox-accounts-2021_GM431946152.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/coin-master-free-cards-and-spin-link_GM406889139.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/free-robux-scams_GM431946152.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/free-roblox-accounts-2021_GM431946152.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/minecraft-win-10-free_GM479516143.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/spin-hack-for-coin-master_GM406889139.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/roblox-hack-com_GM431946152.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/ill-be-free-online-games-on-roblox_GM431946152.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/coin-master-free-spins-cheats_GM406889139.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/grabpoints-robux_GM431946152.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/free-spin-coin-master-new-link_GM406889139.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/get-free-minecraft-account_GM479516143.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/free-spins-coin-master-links-2021_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000370c.bin
a7affb879133d27ff41e427188a75d0dd6f47ef971afa4c2b4a1a8a4f1fa501a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x370C 23096 bytes
font_01_sfnt_off00006ae9.bin
bda18ad7bc028b2989dfdc10c84b9c87c1dbf0242a88a3a6fbf9217f203e509c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE9 19344 bytes

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