Malicious PDF — malware analysis report

Static analysis result for SHA-256 2502e01c97d91647…

MALICIOUS

PDF

35.2 KB Created: 2021-07-06 10:02:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 1cbd36aeb6734c5dec2a75a131392131 SHA-1: 235ce66fb643fe884d1fe92bcd17e987817639fb SHA-256: 2502e01c97d916475bf3feeccb609d2bdb63cc4594063046da678f65bf9a2e59
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, identified as a link farm, directing users to external sites. The document body and heuristics suggest a lure related to game hacks and free spins, likely to trick users into downloading malware or falling for a scam. The presence of external URIs and the ML classifier strongly indicate malicious intent.

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.tw/app/406889139/get-free-spins-coin-master-game-hack
    • http://www.thalanghospital.go.th/UserFiles/File/roblox-dominus-prae-pfp-free-to-use_GM431946152.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/roblox-free-exploits_GM431946152.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/tryrbx-site-free-robux_GM431946152.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/free-spins-coin-master-2021-hack_GM406889139.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/how-to-hack-on-ipad-roblox_GM431946152.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/coin-master-hack-2021-no-human-verification_GM406889139.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/how-to-get-free-clothes-on-roblox_GM431946152.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/free-robux-no-offers_GM431946152.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/coin-master-hack-apk-facebook-login_GM406889139.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/free-robux-without-doing-anything_GM431946152.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/free-roblox-followers-generator-2021_GM431946152.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/can-you-play-minecraft-for-free_GM479516143.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/free-minecraft-bedrock-server-hosting-24-7_GM479516143.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/how-do-you-free-robux-on-roblox_GM431946152.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/how-to-cheat-in-roblox-lumber-tycoon-2_GM431946152.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/how-to-hack-roblox-robux-cheat-engine_GM431946152.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/earn-free-robux-for-roblox_GM431946152.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/hacks-para-roblox_GM431946152.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/free-robux-app_GM431946152.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/get-free-robux-without-doing-anything_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000032fd.bin
f564d9b98ee677fd7a3057291cced8cc38d0a718179b11e300459643bb6c4ca7		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32FD 23252 bytes
font_01_sfnt_off0000676f.bin
4615fa8d24c7ab701dc83bbe602e927cac2a2c7f7d4d6f21c8af2f2227b09e12		 pdf-font-stream PDF embedded font (sfnt) at offset 0x676F 18176 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.