Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8585acca85c63bc…

MALICIOUS

PDF

41.8 KB Authoring application: OpenOffice.org
MD5: 19896a04092eaa5c826a7e247db59cd0 SHA-1: 2642ed224d51333111648171521800fe093f1d11 SHA-256: c8585acca85c63bccd2fadb3c196416a66fbd5e804c7b2f8ded41c0d842c6a71
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains multiple embedded URLs that redirect to other PDF files, suggesting a phishing or malware distribution campaign. The document body, while partially corrupted, mentions 'Ielts advantage reading skills free download', indicating a lure to entice users to click on the malicious links. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the phishing classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://man-energy.ru/uploads/2020/01/28/7010632.pdf
    • http://cnymariancenter.net/uploads/1/3/0/6/130605179/lufazolosekovi_gapedigun_kixuwige.pdf
    • http://menonlyadventures.com/uploads/1/3/0/6/130605403/mabizu.pdf
    • http://bejustalittlebetter.com/uploads/1/3/0/6/130604972/130604972.html#ielts+advantage+reading+skills+free+download

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001056.bin
03f4da8b820b667263b75013ed61dc16d3225e183dc694fc500165cba9d202f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1056 8884 bytes
font_01_sfnt_off00005c9f.bin
2e63c52df1fe4645df17310f8c72a46db422aaa9e326f8683100135326c541fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C9F 16212 bytes

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