Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5d2f5e7d838d07e…

MALICIOUS

PDF

45.6 KB Created: 2021-05-11 14:08:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 3d1588b711ea8a40a0395093d06d16a7 SHA-1: 0c5501410d0677cad761f5c64317a5d8af0786b2 SHA-256: d5d2f5e7d838d07e2ee0b252fe0842adbed594336e677673c85759fe1bb44ccd
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded URLs and a clickable link pointing to external resources, disguised with a 'Robux Generator' theme. The presence of a raw IP address in one of the URIs and the ML classifier's high confidence score indicate malicious intent. The document likely serves as a lure to download unwanted software or potentially more malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

Heuristics 4

  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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/robux-generator-no-survey-game-hack
    • http://111.68.26.74/widyapustaka/repository/free-roblox-avatar-ideas_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/coin-master-free-spins-and-coins_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/best-free-robux-sites_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/coin-master-free-spin-and-coin_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/tower-of-hell-roblox-hack_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/como-hackear-coin-master_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/earn-free-spins-in-coin-master_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/free-downloads-for-coin-master-daily-rewards_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/free-spin-app-for-coin-master_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/coin-master-free-pin_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-get-free-robux-without-paying_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/minecraft-windows-10-hacked-client_GM479516143.pdf
    • http://111.68.26.74/widyapustaka/repository/free-coin-master-hacks-no-verification_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/coin-master-hack-spins-download_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/coin-master-facebook_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/free-robux-reddit_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/give-free-robux_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/minecraft-free-computer-game_GM479516143.pdf
    • http://111.68.26.74/widyapustaka/repository/robux-app_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/rblx-gg-free-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b1e.bin
a8b1dcc7f11c5f253e1b5e24ad764f8dd24d3e6ba7b7384cb5260173a177b0c1
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B1E 24628 bytes
font_01_sfnt_off00008241.bin
9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5
pdf-font-stream PDF embedded font (sfnt) at offset 0x8241 5596 bytes
font_02_sfnt_off00008ee8.bin
8d7caae1347775e8ca08dc472fe9114d87f2701527a8ea14c41e6a126f1cfe3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x8EE8 18476 bytes