Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b28540b55acfbe4…

MALICIOUS

PDF

33.8 KB Authoring application: OpenOffice.org
MD5: 60a1dbc0c0bf0fae47f3f24c97e30fa3 SHA-1: 7dc57973abba7ad667b7aae5f28795253c9482ae SHA-256: 8b28540b55acfbe4fde3ce7255f8681c75c16d1a3362a426dede450308d231f3
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 external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection of Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious intent. The embedded URLs are likely used to redirect users to malicious content or phishing sites. 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://pendulumhealing.com/uploads/1/3/0/5/130538939/razutitezomomipa.pdf
    • http://santurbanvisible.org/uploads/1/3/0/6/130604113/7952408.pdf
    • http://www.corronfarmpreservationsociety.org/uploads/1/3/0/4/130483307/1526bd.pdf
    • http://picperclick.com/uploads/1/3/0/5/130543289/5919466.pdf
    • http://speakup.london/uploads/1/3/0/7/130739127/6530608.pdf
    • http://cloth-ng.com/uploads/1/3/0/4/130476048/afd7a9802efe.pdf
    • http://peldongaming.com/uploads/1/3/0/7/130740180/xuvofidamixowig_rivikexivas.pdf
    • http://campkennedy.com/uploads/1/3/0/6/130605416/25398ecb.pdf
    • http://yaamardance.com/uploads/1/3/0/6/130604218/votonijotopis.pdf
    • http://myvrcpp.com/uploads/1/3/0/7/130775263/jetaverolemamozek.pdf
    • http://socialmediamarketingways.com/uploads/1/3/0/6/130604667/tazidiw.pdf
    • http://host31.carmichaelnl.com/uploads/1/3/0/7/130738936/130738936.html#tracing+alphabet+kindergarten+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002c3a.bin
217b3acc3c24964978bc56e73d1a497273ad0791de518e1ede254b8727a0bd1e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C3A 8208 bytes

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