Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e1ce65529ba83b6…

MALICIOUS

PDF

34.3 KB Authoring application: GIMP
MD5: 17234fbc1e11a0f085bdf3deb3c508cb SHA-1: 22690fd70cd1c32eab4209726553a7975631a338 SHA-256: 0e1ce65529ba83b6e9592389ba8fbd034b7100e9ded8400e1cfc086b98dcf5d5
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document was flagged by multiple heuristics, including a critical alert for a PDF link farm and a high-confidence ML classification. The embedded URLs and the PDF structure indicate a likely attempt to redirect users to external malicious content, potentially for phishing or malware distribution. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • 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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://vandellsfanclub.com/uploads/1/3/0/2/130272432/dogelozukege_kejemajug.pdf
    • http://fet.photorobots.ru/uploads/2020/01/27/d4f46ccf3147.pdf
    • http://juloleb.dobrydom.info/uploads/2020/01/28/filigenewanolis.pdf
    • http://absoluteventoparty.com/uploads/1/3/0/5/130590545/nadusopujo_zesavu_dumumidumixejo_pijodozanabe.pdf
    • https://dusovirulebo.weebly.com/uploads/1/3/0/6/130605186/dukijivawa-noxatumefa-bipez-vubuzufiguguti.pdf
    • https://monibufet.weebly.com/uploads/1/3/0/5/130588299/timetuniwetapa.pdf
    • http://mynutritioninnovation.com/uploads/1/3/0/5/130590243/130590243.html#apache+poi+example+create+excel

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001198.bin
6b32b976e8f1be3d7e078d4e15dd58da7b4c2cc16c7f40e29d1fb15eb0379b75		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1198 8416 bytes

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