Malicious PDF — malware analysis report

Static analysis result for SHA-256 90c2d8e7290c465b…

MALICIOUS

PDF

49.8 KB Authoring application: pstoedit
MD5: 4d4d8b7811ff00ae13c90adebd4df25c SHA-1: 3285c189c9a73f6c1acb77b45b0ac5fadf331ee9 SHA-256: 90c2d8e7290c465bcd7dc8ced867aca5b76f27a7a831195e546c150b77e81e4e
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1566.002 Spearphishing Link

The PDF file exhibits characteristics of a link farm, with numerous embedded URLs pointing to other PDF documents. This technique is often used for SEO manipulation or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. No scripts were extracted from this sample, limiting the analysis of direct payload execution.

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://bentcopper.com/uploads/1/3/0/3/130379589/lurotogajep_bozij_denojuzujaloxu_jutevib.pdf
    • http://bguided.org/uploads/1/3/0/6/130620367/f851978d849c.pdf
    • http://beamsvillecourier.com/uploads/1/3/0/2/130289301/golujomudoxaris-bizekelolapuz-xanakap-dotumufilip.pdf
    • http://natashasfantastic5dollarbling.com/uploads/1/3/0/6/130604715/6358356.pdf
    • http://chinamuslimonline.com/uploads/1/3/0/5/130545784/27c4cce8b1dae2.pdf
    • http://adamhenryink.com/uploads/1/3/0/2/130288416/2207056.pdf
    • http://dmedansky.com/uploads/1/3/0/8/130814761/7aec2.pdf
    • http://dogzandcoffee.com/uploads/1/3/0/6/130620763/faluvojuzaju-zazojomalo-sozada.pdf
    • http://euvat.solutions/uploads/1/3/0/5/130550976/nujonokewiripexi.pdf
    • http://untabvel.store/uploads/1/3/0/3/130379386/6454.pdf
    • http://balletclassique.net/uploads/1/3/0/5/130551670/tatotoj.pdf
    • http://sharedtravel.voyagerwebsites.com/uploads/1/3/0/5/130541765/130541765.html#trane+rtwd+screw+chiller

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012d8.bin
d1dca2bb1cf78d4f1e229dc1a5dc39b18f41e3f26b009873836025e45f5d2242		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12D8 8324 bytes

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