Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7c8a349c0deb33d…

MALICIOUS

PDF

36.6 KB Authoring application: Inkscape
MD5: 590cc68690beed28b79131628ab76125 SHA-1: 3af7aef012c09a71e75c8135c5c0e6bdf5715b9a SHA-256: a7c8a349c0deb33dd08fa9542f59a4f9115227424ea187512469f4b45dfdf29c
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection of 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious classification. The embedded URLs are likely used to distribute phishing content or for SEO manipulation. No scripts were extracted from this sample.

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://artekcm.com/uploads/1/3/0/5/130546391/wetov.pdf
    • http://lamplify.org/uploads/1/3/0/5/130550937/koxudedigubade.pdf
    • http://murrayparkcondos.com/uploads/1/3/0/7/130775014/kezagoka.pdf
    • http://bcrsa.org/uploads/1/3/0/4/130483844/5101847.pdf
    • http://brexitpartychichester.co.uk/uploads/1/3/0/5/130590420/xemadimosofi.pdf
    • http://rentapartmani.com/uploads/1/3/0/3/130313495/3023713.pdf
    • http://maisonbouche.net/uploads/1/3/0/6/130620666/b9dd7e.pdf
    • http://sunkisseddaisyllc.com/uploads/1/3/0/3/130323656/zapowof.pdf
    • http://iweargreatness.com/uploads/1/3/0/7/130775209/130775209.html#difference+between+probability+mass+function+and+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000119d.bin
2da115218d0f5b4aa6cd8666fa0d741ff3d090d2640648dc80dbd01e43c10803		 pdf-font-stream PDF embedded font (sfnt) at offset 0x119D 8496 bytes

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