Malicious PDF — malware analysis report

Static analysis result for SHA-256 4699ee82f8bf6589…

MALICIOUS

PDF

45.3 KB Created: 2021-06-07 14:03:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 0f9b33ba98f4fb083d84e59d8811d802 SHA-1: b8483c3cb46dc61f9aa4d1a241a37d6ffa9d26ef SHA-256: 4699ee82f8bf6589ec1cfcac3208380aee28d1495c481e1077e5b0c689921484
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous links to external resources, many of which are related to game hacking and exploits, suggesting a lure for users to download potentially malicious files. The presence of a 'download button' heuristic further supports this malicious intent. The ML classifier also flagged this PDF as malicious with high confidence.

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/roblox-hack-accounts-password-2021-game-hack
    • http://aks-akk.ac.id/html/perpusakk/repository/how-to-get-youtube-robux-hack_GM431946152.pdf
    • http://aks-akk.ac.id/html/perpusakk/repository/how-to-hack-a-a-roblox-account_GM431946152.pdf
    • http://aks-akk.ac.id/html/perpusakk/repository/invisible-hack-roblox_GM431946152.pdf
    • http://aks-akk.ac.id/html/perpusakk/repository/grandz-how-to-get-free-robux_GM431946152.pdf
    • http://aks-akk.ac.id/html/perpusakk/repository/roblox-hack-discord_GM431946152.pdf
    • http://aks-akk.ac.id/html/perpusakk/repository/hack-roblox-using-command-prompt_GM431946152.pdf
    • http://aks-akk.ac.id/html/perpusakk/repository/t-shirt-roblox-adidas-girl-free_GM431946152.pdf
    • http://aks-akk.ac.id/html/perpusakk/repository/roblox-free-robux-generator-no-survey-2021_GM431946152.pdf
    • http://aks-akk.ac.id/html/perpusakk/repository/nopde-engine-64-roblox-hacks_GM431946152.pdf
    • http://aks-akk.ac.id/html/perpusakk/repository/free-roblox-face-accessories_GM431946152.pdf
    • http://aks-akk.ac.id/html/perpusakk/repository/free-jake-paul-merch-roblox_GM431946152.pdf
    • http://aks-akk.ac.id/html/perpusakk/repository/classic-builders-club-roblox-free_GM431946152.pdf
    • http://aks-akk.ac.id/html/perpusakk/repository/roblox-how-to-use-cheat-engine-2021_GM431946152.pdf
    • http://aks-akk.ac.id/html/perpusakk/repository/pison-club-roblox-free-robux_GM431946152.pdf
    • http://aks-akk.ac.id/html/perpusakk/repository/hacked-roblox-face-id_GM431946152.pdf
    • http://aks-akk.ac.id/html/perpusakk/repository/anti-ban-and-kick-cheat-roblox_GM431946152.pdf
    • http://aks-akk.ac.id/html/perpusakk/repository/roblox-hack-the-streets_GM431946152.pdf
    • http://aks-akk.ac.id/html/perpusakk/repository/free-gems-roblox_GM431946152.pdf
    • http://aks-akk.ac.id/html/perpusakk/repository/free-promo-codes-roblox-2021-robux_GM431946152.pdf
    • http://aks-akk.ac.id/html/perpusakk/repository/arsenal-hack-roblox-pastebin_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005360.bin
466212e1ae03fcd5c42365ea7110eadefb4f4d3432503a3f70715f0ea238f8b8		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5360 24608 bytes
font_01_sfnt_off00008b3a.bin
fa8f136e7e77fd42d246dd4d61e24ea09ae18e069c4a706931a54ed38786a6b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B3A 19320 bytes

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