Malicious PDF — malware analysis report

Static analysis result for SHA-256 a237c41252686ba1…

MALICIOUS

PDF

40.6 KB Authoring application: PDFBox
MD5: 21c4c42de2c5dc39946beeb4906aeb3a SHA-1: cd112a9a3480ee34de87346e12084203fab58242 SHA-256: a237c41252686ba19fa566a734851be05aae38184847f1043ec3586bca95bcf4
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF file contains a large number of external links, many pointing to PDF files hosted on various domains, indicative of a link farm or SEO abuse. The heuristic 'SE_CALLBACK_LURE' specifically identifies a callback phishing or tech-support scam pattern, suggesting the document's content is designed to trick the user into making a phone call. The ClamAV detection further confirms its malicious nature as 'Pdf.Phishing.TtraffRobotInstall'.

Heuristics 4

  • 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
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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://brandsview.com/uploads/1/3/0/4/130490115/f99c6d422c41.pdf
    • http://mozziemotorsports.com/uploads/1/3/0/3/130323727/1223769.pdf
    • http://getadvantage.in/uploads/1/3/0/4/130490078/nabidul.pdf
    • https://gajidekuw.weebly.com/uploads/1/3/0/5/130588885/xabunekitarig.pdf
    • http://mrviolinsd.com/uploads/1/3/0/3/130379067/bowazamanilezurud.pdf
    • http://mowerok.com/uploads/1/3/0/5/130590481/b0e812fd5.pdf
    • http://dpaulart.com/uploads/1/3/0/4/130477245/5b55ffc5dd2.pdf
    • http://amusethemeparks.com/uploads/1/3/0/5/130589251/629798.pdf
    • http://midatlanticbowl.com/uploads/1/3/0/4/130476628/9b047edd33d17.pdf
    • http://carllarosa.com/uploads/1/3/0/5/130551366/xutunanapagim-safuf.pdf
    • http://newperspectivemedical.com/uploads/1/3/0/5/130551832/130551832.html#padi+manual+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001223.bin
6339457f1421241aa563d7bcde23f59635a1402ec0f6842ee1051f4d0ddd3d33		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1223 8688 bytes

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