Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d8863b303ab5ef1…

MALICIOUS

PDF

48.5 KB Created: 2021-06-09 15:52:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 11dcd713a7560365327a88fecf747014 SHA-1: 47e6490d87aa921fd06adca03f818f98c0ce59ab SHA-256: 2d8863b303ab5ef15faec8f432b9921f5bce5e40dbddd769807ff4486b6c62de
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a visible call-to-action, suggesting a lure to download further content. The ML classifier strongly indicates malicious intent. The presence of external URIs and a clickable URI pointing to a raw IP address further supports this. While no scripts were explicitly extracted, the document's structure and content point towards a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.tw/app/431946152/cheats-for-ice-cream-simulator-roblox-game-hack
    • http://111.68.26.74/widyapustaka/repository/how-to-become-a-hacker-in-roblox_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/coin-master-free-rare-cards_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-get-minecraft-java-edition-for-free_GM479516143.pdf
    • http://111.68.26.74/widyapustaka/repository/roblox-grab-knife-hack_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/robux-now_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/haktuts-coin-master-free-spins_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/coin-master-hack-8-ball-pool_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/minecraft-hacks-for-2b2t_GM479516143.pdf
    • http://111.68.26.74/widyapustaka/repository/coin-master-free-spins-today-daily-links_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/apps-that-give-you-free-robux_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-roblox-hair-boy_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/minecraft-windows-10-hacked-client_GM479516143.pdf
    • http://111.68.26.74/widyapustaka/repository/free-minecraft-server_GM479516143.pdf
    • http://111.68.26.74/widyapustaka/repository/free-robux-wheel_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/roblox-build-a-boat-free-plane-codes_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/roblox-free-clothes-hack_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/download-hack-coin-master-apk_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/coin-master-free-coins-and-spins-daily_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/free-robux-earn_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/robux-hack-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005260.bin
fb4afaadecfa717efe9eeb86294c23a2a4a9ecdd85aa9d6cf6a1456a2c6ba2de
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5260 27092 bytes
font_01_sfnt_off00008ec5.bin
889cfc2fd0afa9ea114d6666204c6ce0548d0aae2cba345827d317498c4c06bc
pdf-font-stream PDF embedded font (sfnt) at offset 0x8EC5 2984 bytes
font_02_sfnt_off000098f0.bin
278447a16b61c7f56b80cf8928fd34384f2406be3c96f40c32ccb3e08398a14a
pdf-font-stream PDF embedded font (sfnt) at offset 0x98F0 18964 bytes