Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1c7f9fb900275c3…

MALICIOUS

PDF

33.2 KB Authoring application: pdf-parser
MD5: 3f7e0123e263e2e97d545785efb08107 SHA-1: cf30a2c630d12f7f78fb00d14b538686453159e4 SHA-256: e1c7f9fb900275c36eb0799a1658277447172acebeda8a8389e87f38023386d7
120 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. Static analysis revealed a large number of embedded URLs, indicating a link farm designed to redirect users to potentially malicious content. The document body, though heavily obfuscated, contains references to these URLs, reinforcing the phishing or malware distribution intent. The primary attack pattern involves leveraging these links to lure victims to external sites.

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://kbservice.shop/uploads/1/3/0/7/130776196/1530155.pdf
    • http://protopcbassembly.com/uploads/1/3/0/6/130620746/1305312.pdf
    • http://rep-christ.com/uploads/1/3/0/4/130436196/7238798.pdf
    • http://imperfectwitch.com/uploads/1/3/0/6/130603965/b79a6e88.pdf
    • http://rochesterbiochem.com/uploads/1/3/0/7/130776659/tibufefimapufogu.pdf
    • http://henrymolski.com/uploads/1/3/0/5/130541443/e7068b875c.pdf
    • http://swanmartialarts.com/uploads/1/3/0/3/130323302/1549192.pdf
    • http://my-life-by-me.blog/uploads/1/3/0/6/130620869/giboterazi.pdf
    • http://rodgersandcoonline.com/uploads/1/3/0/3/130313158/5327936.pdf
    • http://lakeconroecontractors.com/uploads/1/3/0/5/130551456/8829772.pdf
    • http://strongrootsfoundationmn.org/uploads/1/3/0/5/130588517/bodoxibepazevetilu.pdf
    • http://anchoredbydesign.shop/uploads/1/3/0/4/130483911/bf4ed4d6191e4ce.pdf
    • http://beeseyecandy.com/uploads/1/3/0/2/130287513/130287513.html#maslow+hierarchy+of+needs+management

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002bb5.bin
7a0d453dac2b408dfe08968b6b9ed153a81916c9763f41b2121ebc9132a902ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BB5 7272 bytes

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