Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f8be825620e768b…

MALICIOUS

PDF

37.5 KB Created: 2021-06-30 17:32:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 362feb5caef216f64fd2ce113c11494a SHA-1: 5504e7ccab2b545e295b3bb4a5ffc7132ca7065d SHA-256: 8f8be825620e768b825662362846c8dff7f6c9b9e7bb8bf23b03dd96d75b28c5
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, identified as a link farm, that point to external resources. The document body, though partially corrupted, suggests a lure related to 'free book bags on Roblox' and 'game hack', indicating a potential phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs further supports a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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/431946152/free-book-bags-on-roblox-game-hack
    • http://perpustakaan.pa-dompu.go.id//repository/coin-master-free-cards-link_GM406889139.pdf
    • http://perpustakaan.pa-dompu.go.id/repository/united-gaming-net-coin-master-hack_GM406889139.pdf
    • http://perpustakaan.pa-dompu.go.id//repository/robux-com-free-robux_GM431946152.pdf
    • http://perpustakaan.pa-dompu.go.id/repository/free-robux-legit-no-survey2021_GM431946152.pdf
    • http://perpustakaan.pa-dompu.go.id/repository/microsoft-rewards-robux_GM431946152.pdf
    • http://perpustakaan.pa-dompu.go.id/repository/free-robux-yoh-can-win-today_GM431946152.pdf
    • http://perpustakaan.pa-dompu.go.id/repository/free-robux-generator-no-surveys-2021_GM431946152.pdf
    • http://perpustakaan.pa-dompu.go.id//repository/free-800-robux_GM431946152.pdf
    • http://perpustakaan.pa-dompu.go.id/repository/pubg-uc-generator-no-verification_GM1330123889.pdf
    • http://perpustakaan.pa-dompu.go.id//repository/bux-life-free-robux_GM431946152.pdf
    • http://perpustakaan.pa-dompu.go.id/repository/how-to-stop-cheat-engine-on-roblox_GM431946152.pdf
    • http://perpustakaan.pa-dompu.go.id//repository/coin-master-free-spins-link-download_GM406889139.pdf
    • http://perpustakaan.pa-dompu.go.id/repository/roblox-boxing-simulator-cheats-xbox-one_GM431946152.pdf
    • http://perpustakaan.pa-dompu.go.id/repository/cheats-power-simulator-roblox_GM431946152.pdf
    • http://perpustakaan.pa-dompu.go.id/repository/easy-robux-hack_GM431946152.pdf
    • http://perpustakaan.pa-dompu.go.id//repository/play-minecraft-for-free-on-pc_GM479516143.pdf
    • http://perpustakaan.pa-dompu.go.id/repository/free-robux-no-verification-no-download-2021_GM431946152.pdf
    • http://perpustakaan.pa-dompu.go.id//repository/coin-master-hack-account_GM406889139.pdf
    • http://perpustakaan.pa-dompu.go.id//repository/free-spins-and-coins-for-coin-master_GM406889139.pdf
    • http://perpustakaan.pa-dompu.go.id//repository/coin-master-unlimited-spin-hack-mod-apk_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003cfa.bin
3541e85895d4bb07c4b4d886a70da8d2c1605a16894ccd1fafc608d64c03ac0b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3CFA 22312 bytes
font_01_sfnt_off00006ea4.bin
ddaa95fffc13490e674371e62296aca06d0177979e366eccfc54edd1904ab3af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EA4 18820 bytes

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