Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1ad4783299effe4…

MALICIOUS

PDF

46.3 KB Created: 2021-06-02 06:02:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: f499c795565ee2625f513feb236a576d SHA-1: e5511bfbe1f4dea6bc314179f73a7282bf98c0cf SHA-256: f1ad4783299effe461522a061ace24def27d927ec939b1db6f2f369dc2f00cd1
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, forming a link farm designed to attract users with promises of free in-game currency or social media engagement. The primary lure URL is https://netcdn.xyz/app/835599320/how-to-get-free-tiktok-fans-without-human-verification-game-hack, which likely leads to a malicious download or phishing page. The presence of a 'Visual download / call-to-action button lure' heuristic further supports the deceptive nature of the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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.xyz/app/835599320/how-to-get-free-tiktok-fans-without-human-verification-game-hack
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/minecraft-bedrock-hacks-windows-10_GM479516143.pdf
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/how-to-get-robux-on-roblox_GM431946152.pdf
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/free-limiteds-roblox_GM431946152.pdf
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/roblox-group-free-robux_GM431946152.pdf
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/how-to-get-free-robux-without-human-verification_GM431946152.pdf
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/coin-master-hack-apk-no-survey_GM406889139.pdf
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/free-robux-generator-without-verification_GM431946152.pdf
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/coin-master-free-coins-link_GM406889139.pdf
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/coin-master-hack-cheat-engine_GM406889139.pdf
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/coin-master-free-coins_GM406889139.pdf
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/coin-master-game-hack-app-download_GM406889139.pdf
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/free-roblox-accounts-with-robux-2021_GM431946152.pdf
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/www-coinmaster_GM406889139.pdf
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/free-coins-and-spins-for-coin-master-game_GM406889139.pdf
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/how-to-get-free-coins-on-coin-master-iphone_GM406889139.pdf
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/free-card-link-coin-master_GM406889139.pdf
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/how-to-get-more-robux_GM431946152.pdf
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/2021-roblox_GM431946152.pdf
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/coin-master-new-link-free-spin_GM406889139.pdf
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/coin-master-hack-apk-2021_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005855.bin
c57f8e8ab2456883fc0175c74e6c12970a18f2e02659acbd367cc5934756593f		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5855 24760 bytes
font_01_sfnt_off00009151.bin
9c1c07c767fa9d9d53b8a100ba390363441f73e8e5d8be898b87013d8ae4ffbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9151 18748 bytes

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