Malicious PDF — malware analysis report

Static analysis result for SHA-256 336efaeebd73a65f…

MALICIOUS

PDF

36.6 KB Authoring application: PDF Studio
MD5: 42c42c2d3a521627ec3c7270086ff397 SHA-1: 9ee11ab00faaed695ec2d19072a1c7ef64962afe SHA-256: 336efaeebd73a65feafbd190aa9d46e714a886699cad7ac7c431dc5047d2bd3d
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded URLs pointing to external PDF documents hosted on various domains. This behavior is indicative of a link farm or redirection scheme, commonly used in phishing or malware distribution campaigns. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall' further supports a phishing or traffic redirection intent. 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://morenoguerrero.com/uploads/1/3/0/7/130738607/2587370.pdf
    • http://moneymentorph.com/uploads/1/3/0/4/130488983/nipisuk_fajubadedufala_lepiluwed.pdf
    • http://nickgiamarino.com/uploads/1/3/0/5/130588389/06e1dfe99.pdf
    • http://shopwasilclothing.com/uploads/1/3/0/2/130287835/sivofifomizuradutewu.pdf
    • http://app-requests.com/uploads/1/3/0/6/130604945/464635.pdf
    • http://bluffcitycreative.com/uploads/1/3/0/6/130605397/1782312.pdf
    • http://mysticmancreations.com/uploads/1/3/0/2/130289563/3049712.pdf
    • http://mysoundcollective.com/uploads/1/3/0/5/130551597/130551597.html#tuscan+double+storey+house+plans+in+south+africa

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001138.bin
16c26a34782fec0fccf0d66882b572b2cc42524a03c117d95ee3287e692db1ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1138 8016 bytes

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