Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4e528a2d5427aef…

MALICIOUS

PDF

43.7 KB Authoring application: OpenOffice.org
MD5: c6cc4bc8265bbaadcf84ed58912f9bfa SHA-1: e0d87b9ce2a215cfe0ea46c66ea53dc65bd1378a SHA-256: a4e528a2d5427aef8461e68e35b8f182e6c42b529c4ca608defe5e2150120873
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document body presents a lure for a recommendation letter template, which is a common social engineering tactic. The embedded and extracted URLs point to external PDF files, suggesting a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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 https://mebiduniriza.weebly.com/uploads/1/3/0/3/130323552/8768252.pdf
    • http://timtosuccess.com/uploads/1/3/0/5/130589449/suluxakefafuru_talujazofunin_xarijilabosem_xolanepasesi.pdf
    • http://hollandghanaplatform.net/uploads/1/3/0/5/130551718/wemanexefexo.pdf
    • http://my-living-benefits.com/uploads/1/3/0/5/130551298/9489350.pdf
    • http://riversidecountyhistory.org/uploads/1/3/0/5/130539016/130539016.html#recommendation+letter+for+employee+template

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010a5.bin
e00e96dab568700d9aba06ea7cf1b74aa9cf88e4ce6321e97fd19f027c3c336d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10A5 8336 bytes

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