Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3790989c22f42af…

MALICIOUS

PDF

42.4 KB Created: 2021-05-17 04:33:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 3e6a0a6e6077d16148847a17d6e1b79b SHA-1: 82cfd2ec2823beb429840981ed4f33a7132eab02 SHA-256: e3790989c22f42af3840e7823bc6f66f3aee1b82984eadff0befd149897c74e8
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of external links, identified as a link farm, suggesting a deceptive purpose. The primary URL, https://netcdn.xyz/app/406889139/free-spins-coin-master-haktuts-game-hack, is likely intended to lead the user to a malicious site. The ML classifier also strongly indicated maliciousness, supporting the assessment of a phishing or scam-related attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/406889139/free-spins-coin-master-haktuts-game-hack
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/blox-pink-robux-free_GM431946152.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/how-to-o-get-free-coin-master-spins_GM406889139.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/coin-master-3533-android-hack_GM406889139.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/free-spins-coin-master-app-ios_GM406889139.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-without-verification-code_GM406889139.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/hacks-to-get-free-robux_GM431946152.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/how-to-hack-mcpe-master-coins_GM406889139.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/free-robux-without-any-verification_GM431946152.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/hack-roblox-players_GM431946152.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/free-coins-coin-master-2021_GM406889139.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/free-roblox-svg_GM431946152.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/roblox-sexually-abused_GM431946152.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/how-to-make-a-free-minecraft-account_GM479516143.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/free-spin-coin-master-2021-link_GM406889139.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/free-draw-2-roblox_GM431946152.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/how-do-u-hack-roblox_GM431946152.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-link-today_GM406889139.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-without-verification-2021_GM406889139.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-robux-hack_GM431946152.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/free-spins-coin-master-no-human-verification_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a1f.bin
ab21dfd1d57d49bf4190ccc01ffe5a20cb088c5aecfe6c6d4e255d60f83a6b40		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A1F 24944 bytes
font_01_sfnt_off000083b0.bin
fd8ee59660af8c9e4664936919e7b5321f93298eaf8e2ea805d6f2ae56b4a3b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83B0 18196 bytes

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