Malicious PDF — malware analysis report

Static analysis result for SHA-256 db6c3584106f5bae…

MALICIOUS

PDF

35.4 KB Created: 2021-06-21 13:09:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 5eb29944dbc3131f4bcf6647db48b682 SHA-1: e83642f632ebb6678d9dc7a51fda2aea40d4e8e8 SHA-256: db6c3584106f5bae0f88a9cd224e64c8ffa706fb91c921043a8371a2180fba7d
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, many of which are presented as download opportunities for game-related cheats and currency. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting a link farm designed to attract users. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were explicitly extracted, the presence of numerous external links and the document's theme point towards a phishing or malware distribution attempt.

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-para-jailbreak-2021-roblox-de-sontix-game-hack
    • http://shootawayproduction.com/images/can-i-hack-coin-master-with-lucky-patcher_GM406889139.pdf
    • http://shootawayproduction.com/images/roblox-bloxburg-free_GM431946152.pdf
    • http://shootawayproduction.com/images/roblox-boombox-backpack-free_GM431946152.pdf
    • http://shootawayproduction.com/images/free-spins-and-coins-com_GM406889139.pdf
    • http://shootawayproduction.com/images/free-spins-in-coin-master-2021_GM406889139.pdf
    • http://shootawayproduction.com/images/free-group-in-roblox_GM431946152.pdf
    • http://shootawayproduction.com/images/coin-master-free-spins-and-coins-hack_GM406889139.pdf
    • http://shootawayproduction.com/images/www-roblox-com-free-robux_GM431946152.pdf
    • http://shootawayproduction.com/images/free-spins-for-coin-master-2021_GM406889139.pdf
    • http://shootawayproduction.com/images/stickmasterluke-free-robux-game-link_GM431946152.pdf
    • http://shootawayproduction.com/images/coin-master-free-spins-2021_GM406889139.pdf
    • http://shootawayproduction.com/images/coin-master-daily-free-spins-link-today-haktuts_GM406889139.pdf
    • http://shootawayproduction.com/images/how-to-get-a-cape-in-minecraft-for-free_GM479516143.pdf
    • http://shootawayproduction.com/images/cheats-for-roblox-vehicle-simulator_GM431946152.pdf
    • http://shootawayproduction.com/images/roblox-cheat-engine-wall-hack_GM431946152.pdf
    • http://shootawayproduction.com/images/roblox-free-play-online-login_GM431946152.pdf
    • http://shootawayproduction.com/images/no-hack-free-robux_GM431946152.pdf
    • http://shootawayproduction.com/images/rbx-codes-free-robux_GM431946152.pdf
    • http://shootawayproduction.com/images/how-to-get-verified-on-tiktok-for-free-2021_GM835599320.pdf
    • http://shootawayproduction.com/images/roblox-explorer-hack-script-pastebin-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031b2.bin
15616afea4b01ebbb524a1ee3201b0952f224adf3b648c4a11135d605060b4e8
pdf-font-stream PDF embedded font (sfnt) at offset 0x31B2 22200 bytes
font_01_sfnt_off00006328.bin
90db70bea65938f8ee6b6bdb65e50041d8a7b9299bc7e4341c40693416d8bd1c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6328 19772 bytes