Malicious PDF — malware analysis report

Static analysis result for SHA-256 55884d2603b66fa1…

MALICIOUS

PDF

34.5 KB Created: 2021-07-06 10:25:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: d5f2344c5618e1b3182d90a6716428fc SHA-1: 511464bed125ffdd90c2a6e3e7f4156c16297885 SHA-256: 55884d2603b66fa1dcae6cd16dbe25963c36fa5249ceb47057194f01dfb35da7
102 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, many of which point to resources related to game hacks and exploits, such as "hacked-roblox-game". The ML classifier strongly flagged this PDF as malicious, and the presence of a link farm heuristic indicates a pattern of distributing links to potentially harmful content. The document's content and structure suggest it is designed to trick users into visiting these links, likely leading to malware downloads or further phishing attempts.

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.tw/app/431946152/hacked-roblox-game-game-hack
    • http://gts.edu.gh/library/repository/como-tener-mas-seguidores-en-roblox-sin-hacks_GM431946152.pdf
    • http://gts.edu.gh/library/repository/how-to-hack-coins-in-mcpe-master_GM406889139.pdf
    • http://gts.edu.gh/library/repository/roblox-hacked-version-download_GM431946152.pdf
    • http://gts.edu.gh/library/repository/how-to-get-free-robux-in-a-second_GM431946152.pdf
    • http://gts.edu.gh/library/repository/robux-hack-club-no-survey-or-download_GM431946152.pdf
    • http://gts.edu.gh/library/repository/life-in-paradise-roblox-hacks_GM431946152.pdf
    • http://gts.edu.gh/library/repository/free-robux-trial_GM431946152.pdf
    • http://gts.edu.gh/library/repository/wish-robux-hack_GM431946152.pdf
    • http://gts.edu.gh/library/repository/links-to-get-free-spins-on-coin-master_GM406889139.pdf
    • http://gts.edu.gh/library/repository/how-to-hack-roblox-accounts-2021-v3rmillion_GM431946152.pdf
    • http://gts.edu.gh/library/repository/interfaz-de-hack-de-roblox_GM431946152.pdf
    • http://gts.edu.gh/library/repository/free-roblox-assassin-knives_GM431946152.pdf
    • http://gts.edu.gh/library/repository/ant-free-robux_GM431946152.pdf
    • http://gts.edu.gh/library/repository/jefftec-free-robux_GM431946152.pdf
    • http://gts.edu.gh/library/repository/how-to-make-free-robux_GM431946152.pdf
    • http://gts.edu.gh/library/repository/how-to-get-free-coins-in-mcpe-master_GM406889139.pdf
    • http://gts.edu.gh/library/repository/good-robux-hacks_GM431946152.pdf
    • http://gts.edu.gh/library/repository/coin-master-cracked-apk-free-download_GM406889139.pdf
    • http://gts.edu.gh/library/repository/how-to-get-free-robux-on-gametest-roblox-com_GM431946152.pdf
    • http://gts.edu.gh/library/repository/coin-master-hack-ios-jailbreak_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002faf.bin
9e55f0f5b3822a46a3cd045eebb3f594939f085665590d834e153bd440e9ef41		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2FAF 22780 bytes
font_01_sfnt_off00006183.bin
e06e2496ecc1c3d364978b7a8e0823831cb090cb55aacb01fa8d052e2f05e4c6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6183 19092 bytes

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