Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd636ca9ae2d4990…

MALICIOUS

PDF

29.5 KB Authoring application: pdf-parser
MD5: 7f8157d5a244735153f42b695db4c417 SHA-1: e1191a48658d13a0fd511bae042b3f9f57fad1fa SHA-256: fd636ca9ae2d499084d6a48285fc129842e299f5df36fa688e83f86270ec4d3f
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to other PDF files, indicating a link farm likely used for SEO manipulation or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. The document body itself is heavily obfuscated and contains a mix of irrelevant text and URLs, reinforcing the malicious nature of the file.

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://americanshomer.com/uploads/1/3/0/4/130488213/jusati.pdf
    • http://usedphotographyequipment.co.uk/uploads/1/3/0/6/130604981/bemosa.pdf
    • http://mezifezur.studio-elephant.ru/uploads/2020/01/29/4900908.pdf
    • http://ashleeelder.com/uploads/1/3/0/6/130621108/wadezejesa.pdf
    • http://liverocks.net/uploads/1/3/0/6/130620759/pibemaborameluxazobe.pdf
    • http://nbjmoldassessment.com/uploads/1/3/0/5/130550844/8384254.pdf
    • http://chuckwilkins.com/uploads/1/3/0/4/130476605/mumosisokifetituw.pdf
    • http://soul-sunshine.com/uploads/1/3/0/3/130323190/wamejawa-romusuxepex.pdf
    • http://darkestsidesilver.com/uploads/1/3/0/2/130289339/tenoxegexewi-gikezalopojenud.pdf
    • http://aspenfamilymedicine.com/uploads/1/3/0/6/130605258/betatelujojon.pdf
    • https://jibakuzudulevu.weebly.com/uploads/1/3/0/6/130604078/runidetularuzaf_kikuvibi.pdf
    • http://bsa-sccc-pack301.com/uploads/1/3/0/4/130489081/130489081.html#empire+universal+lcd+li+ion+charger
    • http://bsa-sccc-pack301.com/uploads/1/3/0/4/130489081/130489081.html#empire+universal+l

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000128e.bin
7e580641f990f1aaec4a9eeb13fc7c19edb3f30557478d1b2a1db8d2649e8dbf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x128E 7588 bytes

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