Malicious PDF — malware analysis report

Static analysis result for SHA-256 7363f84812264620…

MALICIOUS

PDF

35.6 KB Created: 2021-06-27 01:40:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 3945f70745efe2618ad994d39ff1410d SHA-1: b601b113b6c5519d21bd65f36b3b4eeeba3e696f SHA-256: 7363f848122646200ca04af8b8cb5267b86e5b5f2a3dce73ace35d43e9711ee5
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document exhibits malicious characteristics, including a high ML classification score and the presence of numerous external links, many of which are SEO-optimized and point to content related to game hacks and exploits. The document body contains a call-to-action phrase, suggesting an attempt to trick users into downloading further malicious content. The primary URL http://netcdn.co/app/431946152/afraid-of-old-roblox-account-being-hacked-game-hack is likely the initial download point for a payload.

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/afraid-of-old-roblox-account-being-hacked-game-hack
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/roblox-commands-hack-november-2021_GM431946152.pdf
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/attack-on-titan-downfall-roblox-play-free_GM431946152.pdf
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/how-to-get-any-item-for-free-in-roblox-2021_GM431946152.pdf
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/how-do-you-get-free-robux_GM431946152.pdf
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/what-happens-if-your-hacking-in-roblox_GM431946152.pdf
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/free-roblox-exploits-unpatched_GM431946152.pdf
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/roblox-pink-free-robux_GM431946152.pdf
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/free-roblox-2021-agreeing_GM431946152.pdf
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/free-roblox-gift-card-codes-reddit_GM431946152.pdf
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/new-hack-for-roblox-deathrun-2021-november_GM431946152.pdf
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/minecraft-bedrock-edition-pc-download-free_GM479516143.pdf
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/bring-somone-infront-of-you-hack-roblox_GM431946152.pdf
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/how-to-hack-money-in-ultimate-driving-roblox_GM431946152.pdf
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/free-gamepasses-roblox-script_GM431946152.pdf
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/free-robux-codes-2021-for-adopt-me_GM431946152.pdf
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/free-account-roblox-2021-with-robux_GM431946152.pdf
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/cheat-engine-change-stat-roblox_GM431946152.pdf
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/how-to-get-free-quirks-in-boku-no-roblox_GM431946152.pdf
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/create-your-own-avatar-free-roblox_GM431946152.pdf
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/free-roblox-game-card-codes-25_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000033ad.bin
e1663ec12036b41d228cbdb38f0364f9ce615cac4ff949962f5efa0be60a0b09
pdf-font-stream PDF embedded font (sfnt) at offset 0x33AD 22552 bytes
font_01_sfnt_off00006597.bin
701c835e9d2430b2cb94ddba7cd8012dc256651eb347e401378fe9a8b5b0e0f7
pdf-font-stream PDF embedded font (sfnt) at offset 0x6597 19196 bytes