Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9e7c5a0daceac82…

MALICIOUS

PDF

35.2 KB Created: 2021-06-24 06:51:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: d64633ec26250dfd60366d1aa91bc92d SHA-1: fed1c494c5de3d41a1b8e1c33572210322b75394 SHA-256: d9e7c5a0daceac82b971fd57605df1c3ff88e0fca6aa8cacf8363d23ee512cf9
102 Risk Score

Malware Insights

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

The PDF document contains numerous links to external websites, many of which are hosted on hagleygolfclub.co.uk and appear to be part of a link farm promoting game hacks and free items. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs and a call-to-action phrase further supports a malicious intent to redirect users to potentially harmful content. The document's primary purpose seems to be to drive traffic to these scam-related pages.

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/479516143/is-minecraft-education-edition-free-game-hack
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/make-free-robux_GM431946152.pdf
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/free-spins-coin-master-hack-2021_GM406889139.pdf
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/how-to-change-your-roblox-name-for-free-2021_GM431946152.pdf
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/roblox-studio-free-download_GM431946152.pdf
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/free-spin-link-for-coin-master_GM406889139.pdf
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/coin-master-free-spin-link-today-2021_GM406889139.pdf
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/minecraft-tower-defense-hacked_GM479516143.pdf
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/how-do-you-exploit-on-roblox-without-cheat-engine_GM431946152.pdf
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/how-to-get-minecraft-for-free-on-computer_GM479516143.pdf
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/download-file-robloxhackstoolv2zip_GM431946152.pdf
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/best-free-minecraft-texture-packs_GM479516143.pdf
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/free-robux-no-verification-or-survey-2021_GM431946152.pdf
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/coin-master-free-spin-facebook-link_GM406889139.pdf
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/roblox-fly-hack_GM431946152.pdf
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/static-moonactive-net-link_GM406889139.pdf
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/coin-master-free-spins-link-today-new-2021_GM406889139.pdf
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/mobihack-net-roblox-hack_GM431946152.pdf
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/how-to-get-100-free-spins-on-coin-master_GM406889139.pdf
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/coin-master-cards-free-cards_GM406889139.pdf
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/how-do-you-get-free-coins-in-coin-master_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003476.bin
19a27e7ae159cc124ce0a1ff61bc2bd1f6ed593f4ed46f43dbf3ef98fd5cdbef		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3476 22584 bytes
font_01_sfnt_off0000670b.bin
eecac33872f4bf99db25d0145d9acf2ab6d7270ffb9fefd56cdfeedcf9aa8f6d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x670B 18312 bytes

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