Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0d67959a8aa444b…

MALICIOUS

PDF

35.3 KB Created: 2021-06-29 23:46:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: fe742850d6dd58f88caac96cc4a268d4 SHA-1: 2e99c68e4c8758ea9862aef3bd018b71d1e63655 SHA-256: d0d67959a8aa444b5e2bcfae92295b1c7fe5de1b7659896786bcd05bb38cdc35
102 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, many of which are presented as download opportunities for game hacks and cheats. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting a tactic to drive traffic to potentially malicious 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.co/app/431946152/roblox-lumber-tycoon-2-hack-script-2021-game-hack PDF link annotation
    • http://lib.mappifhui.org/repository/coin-master-32-hack-apk_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coinmaster-rewards_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/lastrick-com-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-minecoins-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/minecraft-hack-2021_GM479516143.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/hack-counter-blox-roblox-offensive-download_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-free-mask_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-robux-for-free-hack-2021_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-free-robux-on-mobile-ipad_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/mistplay-robux_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/code-for-generate-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-hack-other-pples-stuff-on-roblox-mm2_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-cheat-free_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/calu-hack-for-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-free-spins-hack-download_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-free-robux-by-joedaddy_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_off00002e94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E94 22852 bytes
SHA-256: 87acad78c57c09b2900df5ea41b44a53bee5a4ee619b2236dc6d4c5705269371
font_01_sfnt_off000061f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F4 20036 bytes
SHA-256: da67eeec366e15df1f11fcacc41b4ed0b7064c9a7b0dd48e7932b5cde36536fd

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