Malicious PDF — malware analysis report

Static analysis result for SHA-256 0443f5e88e3f96bc…

MALICIOUS

PDF

46.4 KB Created: 2021-05-14 19:35:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: b78f6a8cc41f90afee6d96ab613ff322 SHA-1: c6b4141a5931e2d62ca38d86b0bdedc34995084d SHA-256: 0443f5e88e3f96bc86acc62249aea4d7324b951212a9cad8e6c3988483cd608c
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many of which are structured as SEO-optimized PDF gateways. The primary URL, 'https://netcdn.xyz/app/431946152/free-roblox-accounts-2021-with-robux-game-hack', suggests a lure for free game-related items. The ML classifier strongly indicated maliciousness, and the presence of a download button lure reinforces the malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URIs point towards a malicious link farm designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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/free-roblox-accounts-2021-with-robux-game-hack
    • http://www.maranata4x4.co.za/images/coin-master-free-link-today_GM406889139.pdf
    • http://www.maranata4x4.co.za/images/offers-to-get-free-spins-in-coin-master_GM406889139.pdf
    • http://www.maranata4x4.co.za/images/free-robux-easy-and-fast_GM431946152.pdf
    • http://www.maranata4x4.co.za/images/coin-master-download-hack_GM406889139.pdf
    • http://www.maranata4x4.co.za/images/coin-master-free-attack-hack_GM406889139.pdf
    • http://www.maranata4x4.co.za/images/coin-master-free-gift-cards_GM406889139.pdf
    • http://www.maranata4x4.co.za/images/how-to-get-free-robux-2021-easy_GM431946152.pdf
    • http://www.maranata4x4.co.za/images/how-do-i-get-minecraft-for-free_GM479516143.pdf
    • http://www.maranata4x4.co.za/images/coin-master-free-spin-today_GM406889139.pdf
    • http://www.maranata4x4.co.za/images/roblox-2021-hack_GM431946152.pdf
    • http://www.maranata4x4.co.za/images/www-free-robux-com_GM431946152.pdf
    • http://www.maranata4x4.co.za/images/free-robux-scam_GM431946152.pdf
    • http://www.maranata4x4.co.za/images/coin-master-gold-cards-hack_GM406889139.pdf
    • http://www.maranata4x4.co.za/images/minecraft-diamond-finder-hack_GM479516143.pdf
    • http://www.maranata4x4.co.za/images/coin-master-free-spin-and-coins-links_GM406889139.pdf
    • http://www.maranata4x4.co.za/images/blox-fish-free-robux_GM431946152.pdf
    • http://www.maranata4x4.co.za/images/coin-master-hack-no-human-verification-2021_GM406889139.pdf
    • http://www.maranata4x4.co.za/images/krnl-roblox_GM431946152.pdf
    • http://www.maranata4x4.co.za/images/coin-master-free-spins-and-coins-today_GM406889139.pdf
    • http://www.maranata4x4.co.za/images/free-coin-master-spin-and-coin-link_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b97.bin
6aff5ae4c338f4b7971e0a5eaf02457cf9ceab0e43323b5031f84505116c512f		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B97 24588 bytes
font_01_sfnt_off000083b3.bin
9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83B3 5596 bytes
font_02_sfnt_off0000905a.bin
a3899638bf51e335cbc40673d1471e0832e9a39f88469ef4ed0809ba61e6f618		 pdf-font-stream PDF embedded font (sfnt) at offset 0x905A 19076 bytes

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