Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2eddf4b7ae90914…

MALICIOUS

PDF

42.5 KB Created: 2021-06-08 14:23:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 6737d2e10df7b405a47314a14f0b32bb SHA-1: c971d86efdb1ef3a49504fc8d831561c4a07c155 SHA-256: f2eddf4b7ae90914bfc438dd1c5c9f4738e7f052f6a1e8138d097061bb9e1f7c
102 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which are SEO-optimized and point to game-related hacks and cheats. The ML classifier also flagged this PDF as malicious. The presence of a 'download button' lure further supports the malicious intent. The primary goal appears to be directing users to external sites that likely host further malicious content or scams.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9874

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/hack-granny-roblox-game-hack PDF link annotation
    • http://mebliok.com.ua/images/hack-coin-master-nyc_GM406889139.pdfIn PDF document text
    • http://mebliok.com.ua/images/free-spins-on-coin-master-generator_GM406889139.pdfIn PDF document text
    • http://mebliok.com.ua/images/how-to-get-a-halo-in-roblox-royale-high-hack_GM431946152.pdfIn PDF document text
    • http://mebliok.com.ua/images/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://mebliok.com.ua/images/coin-master-game-hack-apk_GM406889139.pdfIn PDF document text
    • http://mebliok.com.ua/images/how-to-create-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://mebliok.com.ua/images/robux-free-online_GM431946152.pdfIn PDF document text
    • http://mebliok.com.ua/images/coin-master-free-spins-whatsapp-link_GM406889139.pdfIn PDF document text
    • http://mebliok.com.ua/images/roblox-redeem_GM431946152.pdfIn PDF document text
    • http://mebliok.com.ua/images/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://mebliok.com.ua/images/robloxhacks_GM431946152.pdfIn PDF document text
    • http://mebliok.com.ua/images/microsoft-rewards-robux_GM431946152.pdfIn PDF document text
    • http://mebliok.com.ua/images/free-links-for-free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://mebliok.com.ua/images/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • http://mebliok.com.ua/images/free-robux-no-verification-required_GM431946152.pdfIn PDF document text
    • http://mebliok.com.ua/images/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://mebliok.com.ua/images/free-apk-mod-coin-master_GM406889139.pdfIn PDF document text
    • http://mebliok.com.ua/images/free-robux-survey_GM431946152.pdfIn PDF document text
    • http://mebliok.com.ua/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://mebliok.com.ua/images/coin-master-free-spin-today_GM406889139.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_off00004bf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BF3 24336 bytes
SHA-256: bcc90b6fb17b633ff8d3149a4a31ba1c22970232889afa7a03e9379fb74d3795
font_01_sfnt_off00008304.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8304 18360 bytes
SHA-256: 72f7bd85e4a27d01bc6feee054c5ba34893c701ef8729d3e0f668a658a0f9e3c