Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7b8b3e81e93f24c…

MALICIOUS

PDF

47.6 KB Created: 2021-06-02 08:09:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 6a8e2b9df45c52ac9bd4d83817efe1ff SHA-1: 25dfec23311fad4491580a478a73d3e8d038397b SHA-256: c7b8b3e81e93f24cc70b585dff0059f07242661089c18421916670880c88dca5
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous external links, many of which appear to be part of an SEO link farm, suggesting an attempt to drive traffic or host malicious content. The presence of a download button lure and a high ML classifier score further indicate malicious intent. The primary URL, https://netcdn.xyz/app/431946152/roblox-inceptor-hack-game-hack, is likely a distribution point for a payload.

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/431946152/roblox-inceptor-hack-game-hack
    • http://kpu-klungkungkab.go.id/new/public/ckfinder/userfiles/files/coin-master-daily-free-spins-link-today-blogspot_GM406889139.pdf
    • http://kpu-klungkungkab.go.id/new/public/ckfinder/userfiles/files/free-coin-master-spins-link_GM406889139.pdf
    • http://kpu-klungkungkab.go.id/new/public/ckfinder/userfiles/files/give-me-robux-now_GM431946152.pdf
    • http://kpu-klungkungkab.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spin-realme-products_GM406889139.pdf
    • http://kpu-klungkungkab.go.id/new/public/ckfinder/userfiles/files/how-to-setup-a-minecraft-server-for-free_GM479516143.pdf
    • http://kpu-klungkungkab.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spin-and-coin-link-haktuts-hacking-news_GM406889139.pdf
    • http://kpu-klungkungkab.go.id/new/public/ckfinder/userfiles/files/coin-master-free-coins-link-2021-deutsch_GM406889139.pdf
    • http://kpu-klungkungkab.go.id/new/public/ckfinder/userfiles/files/roblox-hack-me-robux_GM431946152.pdf
    • http://kpu-klungkungkab.go.id/new/public/ckfinder/userfiles/files/how-to-get-a-free-minecraft-account_GM479516143.pdf
    • http://kpu-klungkungkab.go.id/new/public/ckfinder/userfiles/files/coin-master-free-coins-and-spins_GM406889139.pdf
    • http://kpu-klungkungkab.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-minecoins-in-minecraft_GM479516143.pdf
    • http://kpu-klungkungkab.go.id/new/public/ckfinder/userfiles/files/pokemon-go-free-007_GM1094591345.pdf
    • http://kpu-klungkungkab.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-robux-without-any-verification_GM431946152.pdf
    • http://kpu-klungkungkab.go.id/new/public/ckfinder/userfiles/files/clean-master-hack-coins_GM406889139.pdf
    • http://kpu-klungkungkab.go.id/new/public/ckfinder/userfiles/files/earn-free-robux-today_GM431946152.pdf
    • http://kpu-klungkungkab.go.id/new/public/ckfinder/userfiles/files/how-to-hack-coin-master-spin-in-hindi_GM406889139.pdf
    • http://kpu-klungkungkab.go.id/new/public/ckfinder/userfiles/files/hack-game-plus-com-coin-master_GM406889139.pdf
    • http://kpu-klungkungkab.go.id/new/public/ckfinder/userfiles/files/60-free-spins-coin-master_GM406889139.pdf
    • http://kpu-klungkungkab.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-355_GM406889139.pdf
    • http://kpu-klungkungkab.go.id/new/public/ckfinder/userfiles/files/free-minecraft-for-kids_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000056a5.bin
2b9dc2e5432e313631e4f0cce980df601adbc33e9328bddb34f2266b7346239b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56A5 28476 bytes
font_01_sfnt_off00009701.bin
43b491f58eba31ac7fce473cc09a0cce20c915f85ea071c446f1dbb0e059a2e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9701 18464 bytes

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