Malicious PDF — malware analysis report

Static analysis result for SHA-256 f62d6b7a3cb75449…

MALICIOUS

PDF

34.3 KB Authoring application: QPDF First seen: 2020-09-24
MD5: 8f96bdc7abde22f78a61de8d7aec95f9 SHA-1: e44c80dfc1f70a62e00a26c038d1783c3a79d0ce SHA-256: f62d6b7a3cb7544994be6807dbad46cca4f797f3e204cc90277288b9819b1c96
94 Risk Score

Malware Insights

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

The PDF contains embedded URLs that lead to other PDF files, suggesting a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to distributing further payloads or phishing content. Although no scripts were directly extracted, the embedded URLs are the primary indicators of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 http://northstarcare.org/uploads/1/3/0/5/130590366/birotowiti_tisajorokikafi_duxujejomevoni_nagexum.pdf PDF link annotation
    • https://wunasare.weebly.com/uploads/1/3/0/5/130588297/66867ca98c3.pdfIn PDF document text
    • http://beatafurstenberg.com/uploads/1/3/0/5/130539881/gijovenesaz.pdfIn PDF document text
    • http://malakabu.en-help.center/uploads/2020/01/28/fenenokenipug.pdfIn PDF document text
    • http://nashobavalleyextractco.com/uploads/1/3/0/4/130477915/130477915.html#properties+of+sound+waves+answersIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001041.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1041 7724 bytes
SHA-256: 78abb67b2c44de648def93a45a845867e6c0161f0feb77e85d52945f53dce53a