Malicious PDF — malware analysis report

Static analysis result for SHA-256 d57801cfdf7158b2…

MALICIOUS

PDF

35.5 KB Created: 2021-06-29 19:07:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: b37a07b62d05b1eddb68a06c5b5b4527 SHA-1: ff574d208ca7832ef358f81a1a4c8452078ab0de SHA-256: d57801cfdf7158b2c9a5dce37f22fab75f36e965a297febe893a4c3704ecd6ee
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external resources, many of which are SEO-optimized PDFs hosted on a repository site, suggesting a link farm designed to attract users searching for game hacks. The primary URL, http://netcdn.co/app/431946152/hack-pour-roblox-apocalipse-rising-game-hack, likely serves as a download point for a malicious payload. The ML classifier strongly indicated maliciousness, and the presence of a download button lure reinforces the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/hack-pour-roblox-apocalipse-rising-game-hack
    • https://repository.stikesindramayu.ac.id/repository/free-robux-hacks-no-verification_GM431946152.pdf
    • https://repository.stikesindramayu.ac.id/repository/growboxnet-free-robux_GM431946152.pdf
    • https://repository.stikesindramayu.ac.id/repository/free-robux-non-scam-or-hack_GM431946152.pdf
    • https://repository.stikesindramayu.ac.id/repository/how-to-get-any-roblox-game-for-free_GM431946152.pdf
    • https://repository.stikesindramayu.ac.id/repository/free-roblox-toy-codes-not-used_GM431946152.pdf
    • https://repository.stikesindramayu.ac.id/repository/coin-master-3rd-village-free-2021-gift-card_GM406889139.pdf
    • https://repository.stikesindramayu.ac.id/repository/glitch-for-free-robux-2021_GM431946152.pdf
    • https://repository.stikesindramayu.ac.id/repository/roblox-cb-ro-hack-download_GM431946152.pdf
    • https://repository.stikesindramayu.ac.id/repository/free-catalog-items-roblox-2021_GM431946152.pdf
    • https://repository.stikesindramayu.ac.id/repository/how-to-get-free-coins-in-minecraft_GM479516143.pdf
    • https://repository.stikesindramayu.ac.id/repository/free-promocodes-that-give-you-robux_GM431946152.pdf
    • https://repository.stikesindramayu.ac.id/repository/top-10-free-items-in-roblox_GM431946152.pdf
    • https://repository.stikesindramayu.ac.id/repository/raindrop-free-roblox_GM431946152.pdf
    • https://repository.stikesindramayu.ac.id/repository/roblox-avatar-girl_GM431946152.pdf
    • https://repository.stikesindramayu.ac.id/repository/how-to-hack-people-in-roblox_GM431946152.pdf
    • https://repository.stikesindramayu.ac.id/repository/gameflycom-free-robux_GM431946152.pdf
    • https://repository.stikesindramayu.ac.id/repository/hack-free-spin-coin-master_GM406889139.pdf
    • https://repository.stikesindramayu.ac.id/repository/free-robux-secret-site_GM431946152.pdf
    • https://repository.stikesindramayu.ac.id/repository/blox-best-free-robux_GM431946152.pdf
    • https://repository.stikesindramayu.ac.id/repository/roblox-hack-cheat-engine-mac_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003424.bin
2f3b3c002eea274bd510878a437a421143caaafd45cff6ed8a726876ae42afdf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3424 22172 bytes
font_01_sfnt_off00006535.bin
b2afc297926c789ef682ec65a82ab8eda98a0dedd249eedcf9c3874100458208		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6535 19248 bytes

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