Malicious PDF — malware analysis report

Static analysis result for SHA-256 196891254ff3fab3…

MALICIOUS

PDF

30.2 KB Authoring application: GIMP
MD5: 1995b22d83dbdb5d9156442b60229b13 SHA-1: 0680d0d51526194d1c019086b5a80a976c50a87c SHA-256: 196891254ff3fab34812037d2f8b9da1cb96c93b6d34987db1485d374a4773b3
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, a technique often used for SEO manipulation or to distribute malicious payloads. ClamAV and ML heuristics confirm its malicious nature, identifying it as Pdf.Phishing.TtraffRobotInstall. The embedded URLs are the primary IOCs, suggesting a campaign to drive traffic to potentially compromised or malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://smoothtransitionservices.com/uploads/1/3/0/6/130621100/semoku.pdf
    • http://veticusllc.com/uploads/1/3/0/7/130774966/c0921cff.pdf
    • http://3lmboutique.com/uploads/1/3/0/6/130604145/norizanekokigapo.pdf
    • http://buffalopayroll.com/uploads/1/3/0/2/130270863/97479.pdf
    • http://doctorberrytherapy.com/uploads/1/3/0/4/130483990/4432314.pdf
    • http://expansionradiolive.com/uploads/1/3/0/9/130969329/5afd3c6a.pdf
    • http://designsthatflow.com/uploads/1/3/0/2/130273617/30a8b3f3b200.pdf
    • http://plainviewahead.org/uploads/1/3/0/7/130739185/5278416.pdf
    • http://www.conceptsingreenaustralia.com/uploads/1/3/0/5/130550681/85d7e2b0f2db.pdf
    • http://polmaksondaj.com/uploads/1/3/0/2/130289543/dijazen-sevirolesoluf-wipopuzipetexu.pdf
    • http://stevenmatos.studio/uploads/1/3/0/6/130639554/3749419.pdf
    • http://dki1viwd.brdge.org/uploads/1/3/0/2/130291575/130291575.html#angle+addition+postulate+worksheets

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001d93.bin
2589f526dfe918af757dd1acac2c7029b440f558de22bc34a8c22fa3344fa2ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1D93 8192 bytes

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