Malicious PDF — malware analysis report

Static analysis result for SHA-256 912801fbc4b2db82…

MALICIOUS

PDF

33.4 KB Authoring application: GIMP
MD5: 7d7a5666115bc2706a10143a87346c5c SHA-1: 20e876985d87cb77638a46f0bd425451a21ab65d SHA-256: 912801fbc4b2db821296baf149fdffad41852f7b983f86d3f0ee927ad6fa7b6c
140 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, identified as a PDF_SEO_LINK_FARM heuristic. Additionally, the document body suggests a callback lure, prompting users to contact a number for billing or security issues. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. No scripts were extracted, limiting the analysis of direct payload execution.

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://yalcinerserhan.com/uploads/1/3/0/6/130620390/pizagola.pdf
    • http://cbdsnacks.me/uploads/1/3/0/2/130270982/vajujosap.pdf
    • http://suefordedtechportfolio.com/uploads/1/3/0/5/130540155/4359300.pdf
    • http://thefishingday.com/uploads/1/3/0/7/130775400/tededenizanena_mawalewekukifax_widitutebawit.pdf
    • http://michaudsblog.com/uploads/1/3/0/3/130313235/5691505.pdf
    • http://goldpricestoday.org/uploads/1/3/0/2/130289668/miwalowupo.pdf
    • http://michaelshusko.com/uploads/1/3/0/6/130604521/130604521.html#acca+f5+december+2011+questions

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000110a.bin
c7bdccb8f02fea615f54eba9952af7e8c1569feaebbbf5f50aa7477358653c9b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x110A 8108 bytes

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