Malicious PDF — malware analysis report

Static analysis result for SHA-256 db0c187c72f473d6…

MALICIOUS

PDF

34.3 KB Authoring application: Inkscape
MD5: 42a5de064f007904466bacbcb3569c86 SHA-1: f00b55aeb9709ace348e7ae300686be276648a86 SHA-256: db0c187c72f473d6c04f3d7b6fb2b5f629558242c8a4ba7da1b906faf0b10274
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents hosted on various domains. This behavior is indicative of a link farm used to distribute malicious content or conduct phishing attacks. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the phishing classification. No scripts were extracted from this sample, limiting the ability to determine specific execution methods.

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://mizfamphoto.com/uploads/1/3/0/2/130287462/dikuduberav-vozule-wuwuke.pdf
    • http://enbit.com.au/uploads/1/3/0/2/130288887/selinumoxojomeger.pdf
    • http://thisweeksbestdeals.com/uploads/1/3/0/3/130323929/vonedusafag.pdf
    • http://cwb4nepal.com/uploads/1/3/0/7/130739274/jupidizenedumade.pdf
    • https://lubimorukula.weebly.com/uploads/1/3/0/5/130589353/6905347.pdf
    • http://v-techsnc.com/uploads/1/3/0/6/130639148/nawapuxar.pdf
    • http://performanceinc.club/uploads/1/3/0/6/130620857/09533b75e0.pdf
    • http://benkregel.com/uploads/1/3/0/6/130640084/130640084.html#avanza+2010+manual+jakarta

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010fa.bin
a5d88fc2553e5b09bf05f77fc2e6143f2317d78cd93ce0b9ddc3f7a7f97a269b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10FA 7456 bytes

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