Malicious PDF — malware analysis report

Static analysis result for SHA-256 4eb90d7e71acac57…

MALICIOUS

PDF

26.3 KB Created: 2021-06-20 05:20:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 431ed60f3458a858a7fa5ab63670680b SHA-1: c91a6197f236a57a813423805a1a0708c64d3269 SHA-256: 4eb90d7e71acac573ad6ad3070f447906fa317d5039223f373291415ab3eab03
70 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'http://netcdn.co/app/431946152/cheat-engine-6.5-roblox-game-hack'. Additionally, it presents a visual download button lure. The document body, though partially garbled, contains text related to 'Cheat Engine' and 'Roblox', suggesting a lure for game-related cheats or hacks, which is a common social engineering tactic. The presence of a malicious redirector indicates an attempt to deliver a second-stage payload.

Machine Learning

  • Nyx PDF Classifier clean score 0.0372

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/cheat-engine-6.5-roblox-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001520.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1520 20860 bytes
SHA-256: 34011838ae4a2e5f40e7974279f10e0ee00f93a834bd75d4e4c9da9f46bd2bb7
font_01_sfnt_off00004287.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4287 19244 bytes
SHA-256: 5ae11aba8702a7f5a7ac9cb82d0122f3d6ebf538a7ca1bfacd730e1680085302

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