Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b5468f48a3a40c2…

MALICIOUS

PDF

28.5 KB Authoring application: Scribus
MD5: 5d23412f95ff0bd1e3d3f4fda3c2ae3a SHA-1: 4e3074481a50ee9e70845ec9f47b8834021e45a6 SHA-256: 4b5468f48a3a40c2fdebd6be7787b6b9ef66de0dc8f82bb09cc4f0f521e2a774
120 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, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection of 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further suggests a malicious intent, likely related to phishing or traffic redirection. The document body, while containing some garbled text, also includes the URLs, reinforcing the link farm observation. No scripts were extracted from this sample.

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://noahcompportfolio.com/uploads/1/3/0/6/130620480/3594380.pdf
    • http://xplorcolombia.com/uploads/1/3/0/5/130550770/nofixuxituduja.pdf
    • http://nooracademyonline.com/uploads/1/3/0/6/130620669/1782735.pdf
    • http://rebeccalaplacaattia.com/uploads/1/3/0/6/130603710/gobeginuzuvulomejozi.pdf
    • http://myhealthcoachusa.com/uploads/1/3/0/7/130776889/784923668.pdf
    • http://mowed.copyrightcontact-1000032019.info/uploads/2020/01/29/padinalemema.pdf
    • http://20yearsincode.com/uploads/1/3/0/4/130476516/wetosozubefalu.pdf
    • http://rebeccalaplacaattia.com/uploads/1/3/0/5/130551864/130551864.html#cadbury+5+star+nutrition+information
    • http://rebeccalaplaca

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010bd.bin
ac4088212ec798445f13575c6d240d6dc4c09bee61d990b22abb506d2393e448		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10BD 7148 bytes

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