Malicious PDF — malware analysis report

Static analysis result for SHA-256 14181cb540e9fe49…

MALICIOUS

PDF

33.6 KB Created: 2021-06-28 16:23:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 5cb49eb15b5df80e57098900d7d312b3 SHA-1: ccebc5cbe805a5e757e2a3de9c594263c545bebc SHA-256: 14181cb540e9fe494ea6ae200dda522636f61aee8a02b1f65176abdabf0c2cac
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains numerous embedded URLs and a "link farm" heuristic, suggesting it is designed to redirect users to malicious sites. The document body and extracted URLs indicate a lure related to "Roblox" hacks and cheats, likely to trick users into downloading malware. 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.co/app/431946152/hack.com-for-roblox-game-hack PDF link annotation
    • http://www.sscs-uae.com/userfiles/files/cheat-codes-little-mix-roblox-id_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/hack-roblox-pour-rcupe-nos-compte_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/rogue-roblox-aimbot-cheat_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/hiw-ti-hack-a-roblox-account_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/free-gamepass-2021-roblox_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/roblox-skins-girl-free-download_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/promo-codes-for-free-stuff-2021-roblox_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/free-robux-pin-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/cheat-codes-for-roblox-pet-simulator_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/how-to-kick-a-hacker-in-a-server-roblox_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/free-things-roblox_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/get-free-robux-add-codes_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/free-robux-100-no-survey_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/how-to-hack-on-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/god-roblox-hack-script-fe_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/robux-verification-hack_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/howe-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/robux-free-roblox-glitch-2021_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/games-in-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/money-hack-roblox-pastebin-leaderboard_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002d3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D3F 22200 bytes
SHA-256: fa8f8b3fb53342876019ad79e19609a3a6015068601702c6191e7ed5541be5b6
font_01_sfnt_off00005e29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E29 19144 bytes
SHA-256: 89c6c125c7a3f96edd2e29f6ee8ed7bba8e8b761ef41db56e7ef8483bc6a4c14

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