Malicious PDF — malware analysis report

Static analysis result for SHA-256 c02d1626d111fe0a…

MALICIOUS

PDF

35.2 KB Created: 2021-06-25 15:13:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: ebbe1a26133e73b6664686dc014659d3 SHA-1: a62cbf79e7132e387724d7a74e36759a02e6f62c SHA-256: c02d1626d111fe0ae7878f24f382e061eace837207a9878cb2403e785474673c
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded links, identified as a 'PDF_SEO_LINK_FARM' heuristic, pointing to websites that offer game cheats and hacks. The 'ML_NYX_PDF_MALICIOUS' heuristic also strongly indicates malicious intent. The document body and extracted URLs suggest a scam or phishing attempt to trick users into visiting potentially harmful sites.

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/how-hack-in-roblox-game-hack
    • http://opac.disarpus.surakarta.go.id/repository/coin-master-spin-hack-apk_GM406889139.pdf
    • http://opac.disarpus.surakarta.go.id/repository/orewards-com-free-robux_GM431946152.pdf
    • http://opac.disarpus.surakarta.go.id/repository/free-promo-codes-for-coin-master_GM406889139.pdf
    • http://opac.disarpus.surakarta.go.id/repository/free-roblox-accounts-2021-v3rmillion_GM431946152.pdf
    • http://opac.disarpus.surakarta.go.id/repository/free-robux-with-no-human-verification_GM431946152.pdf
    • http://opac.disarpus.surakarta.go.id/repository/how-much-is-uc-pubg_GM1330123889.pdf
    • http://opac.disarpus.surakarta.go.id/repository/blogspot-coin-master-spins_GM406889139.pdf
    • http://opac.disarpus.surakarta.go.id/repository/free-coins-coin-master_GM406889139.pdf
    • http://opac.disarpus.surakarta.go.id/repository/what-items-are-free-in-roblox-catalog_GM431946152.pdf
    • http://opac.disarpus.surakarta.go.id/repository/coin-master-free-coins-and-spins-link-2021_GM406889139.pdf
    • http://opac.disarpus.surakarta.go.id/repository/free-unlimited-coin-master-online-tool_GM406889139.pdf
    • http://opac.disarpus.surakarta.go.id/repository/free-robux-no-sign-up-no-survey_GM431946152.pdf
    • http://opac.disarpus.surakarta.go.id/repository/how-to-get-free-bc-tbc-obc-on-roblox-2021_GM431946152.pdf
    • http://opac.disarpus.surakarta.go.id/repository/free-spins-coin-master-links-thursday-november-28-2021_GM406889139.pdf
    • http://opac.disarpus.surakarta.go.id/repository/free-1k-robux_GM431946152.pdf
    • http://opac.disarpus.surakarta.go.id/repository/sites-for-free-spins-for-coin-master_GM406889139.pdf
    • http://opac.disarpus.surakarta.go.id/repository/how-to-get-free-robux-2021-easy_GM431946152.pdf
    • http://opac.disarpus.surakarta.go.id/repository/free-roblox-script-builder-scripts_GM431946152.pdf
    • http://opac.disarpus.surakarta.go.id/repository/free-robux-codes-no-verification_GM431946152.pdf
    • http://opac.disarpus.surakarta.go.id/repository/roblox-strucid-alpha-hack_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003232.bin
b1f2d1f5e896c306f1905c638ad3b16174f095311499c221af76154e40b25004		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3232 22920 bytes
font_01_sfnt_off0000652e.bin
c23b1e3754a80f57e53ca548d6585229851e23e907c5f834e2020c0a4f56ffa7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x652E 18820 bytes

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