Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fe5cd1561be7d99…

MALICIOUS

PDF

42.8 KB Authoring application: Soda PDF
MD5: 8c9eef928119e9852df40586a18f3cb1 SHA-1: 8a4b09d301c6fcb3f2f9916f355557f2c99923aa SHA-256: 4fe5cd1561be7d9998e44b831f8e7e9c034e9f3f401d40c14fee0cebe17ac68f
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links to other PDF documents hosted on various domains, indicating a link farm designed to redirect users. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. No scripts were extracted from this sample, and the document body was heavily obfuscated and truncated, preventing a deeper analysis of its specific content.

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://teleprofile.net/uploads/1/3/0/6/130621068/0bcef169bf71cd9.pdf
    • http://beerticket.com/uploads/1/3/0/6/130603760/360332.pdf
    • http://nyll.net/uploads/1/3/0/4/130488530/silupokika.pdf
    • http://webmasterfreelancewriter.com/uploads/1/3/0/6/130621015/1804789.pdf
    • http://esemkb.com/uploads/1/3/0/6/130639559/8295098.pdf
    • http://qianyiyulechengdubowangzhan.f18.ebkf.org/uploads/1/3/0/2/130271045/vebasupix.pdf
    • http://milwaukeetoireland.com/uploads/1/3/0/6/130604626/6bf0fe.pdf
    • http://nabeelreviews.com/uploads/1/3/0/5/130551597/4598297.pdf
    • http://flexiblenutritionsolutions.com/uploads/1/3/0/7/130739856/nitusotanofaduva.pdf
    • http://www.jekarawright.com/uploads/1/3/0/2/130274304/zeruvoxoxame.pdf
    • http://mohawkvapors.com/uploads/1/3/0/3/130313702/xadakaposuf.pdf
    • http://nandrews.net/uploads/1/3/0/5/130540282/6108453.pdf
    • http://mobilosophy.com/uploads/1/3/0/6/130639061/ff335.pdf
    • http://yinghuangguojiyulecheng.br3h.com/uploads/1/3/0/4/130483492/130483492.html#communicative+language+teaching+speaking+activities
    • http://milwaukeetoireland.com/up

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004d18.bin
6710de1377dec363214e985187fc8a634bd5ab4cce84a9aa87d81688fc29b643		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D18 8864 bytes

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