Malicious PDF — malware analysis report

Static analysis result for SHA-256 41f81d6ddcb7e582…

MALICIOUS

PDF

35.6 KB Created: 2021-07-04 20:24:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 30e87a70cc68def8090ac5d115dc73a2 SHA-1: 29486da43f744dfceec2b6648b24c72f2e637fbc SHA-256: 41f81d6ddcb7e5823ebd82c1d7b6f52278ba08a919c8699d8bd328ec9f79f798
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded URIs and clickable links that direct users to websites offering game hacks and cheats for popular games like Roblox and Coin Master. The ML classifier strongly indicates maliciousness, and the presence of numerous links to potentially harmful content suggests a phishing or malware distribution attempt. No scripts were extracted, but the document's structure and embedded links are designed to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/coin-master-facebook-game-hack
    • http://111.68.26.74/widyapustaka/repository/roblox-message-hack_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-powergrip-gauntlet-roblox-parkour_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-hack-for-free-gamepasses-on-roblox_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-get-a-free-knive-in-roblox-cbro_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/earn-robux-by-watching-ads_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-hack-roblox-to-get-free-robux_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-robux-reeally-works_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-get-free-robux-promo-codes_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/roblox-pet-simulator-noob-vs-pro-vs-hacker_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/coin-master-free-spins-link-haktuts_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/hire-a-roblox-hacker_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/robux-hack-2021-no-human-verification-code_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/cheat-for-roblox-payed_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/facebook-coin-master-free-spins-link_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/coin-master-free-link-daily_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/coin-master-hack-without-verification-2021_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-hack-roblox-2021_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-sue-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000360f.bin
eb60d598132c665d3a9e18ed424540ff7f3b613541089702c8e2aa777a524e07
pdf-font-stream PDF embedded font (sfnt) at offset 0x360F 22704 bytes
font_01_sfnt_off00006878.bin
a6ed948cf24eb29c37458194fefc1f47b33ce3c9afefa5bc0bcdf74f8f7d5de4
pdf-font-stream PDF embedded font (sfnt) at offset 0x6878 18324 bytes