Malicious PDF — malware analysis report

Static analysis result for SHA-256 314b1f88e3020a12…

MALICIOUS

PDF

41.9 KB Authoring application: Poppler-utils
MD5: bda99cae5fd103ed71cbe208200d55d9 SHA-1: d3a51be671de212b03abdce91f9d4ec8b3957731 SHA-256: 314b1f88e3020a12fe64876b171142d58e6bae9e6719fb0b0f3c4d10243a4061
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical alert for a link farm and ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. The presence of numerous external URLs, all pointing to similarly structured paths on different domains, strongly suggests a phishing or redirection campaign. No scripts were extracted from this sample.

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://cavaliernoir.com/uploads/1/3/0/6/130639355/1e6223.pdf
    • http://kosherfoshan.com/uploads/1/3/0/7/130738753/c0118cba3e50c.pdf
    • http://server65086.misscarols.com/uploads/1/3/0/8/130813448/4523666.pdf
    • http://yarbroughfinancialinc.com/uploads/1/3/0/4/130489434/01f8ccb28d.pdf
    • http://christmasinchilhowie.com/uploads/1/3/0/7/130775156/3804a7e2f.pdf
    • http://conqueracademy.com/uploads/1/3/0/6/130640111/viweto.pdf
    • http://enjoni-cafe.com/uploads/1/3/0/2/130289733/velasufakugem.pdf
    • http://lucynelle.net/uploads/1/3/0/6/130639998/261279.pdf
    • http://mikewilbanks.com/uploads/1/3/0/6/130620646/rorogadozu.pdf
    • http://investedin.net/uploads/1/3/0/6/130639531/9831777.pdf
    • http://corustest.devsite-1.com/uploads/1/3/0/5/130588589/130588589.html#atkins+induction+breakfast+muffins

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000336c.bin
c6c28444bcd94379862b6cc7f8cfcdbcdaeb026857ccdb099d87626a561054a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x336C 16092 bytes
font_01_sfnt_off00004b3c.bin
0aab9dfb95aa8de3291b9435452d576c4f7fdc2fbcd90aae77e49c3f20e79e80		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4B3C 9008 bytes

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