Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5a9c6e0c0467b8a…

MALICIOUS

PDF

39.3 KB Authoring application: SWFTools
MD5: 50f1139e252bc8fdb67cbb5e68ccf57d SHA-1: 84798d5c674783c6f3c2da77d72b6417755ba376 SHA-256: b5a9c6e0c0467b8a39675f18c4ed494977bfe975d467f1622d7e10506163f71d
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF documents hosted on different domains, suggesting a link farm or redirection strategy. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious intent, likely related to phishing or traffic redirection. 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://mathiasscarborough.com/uploads/1/3/0/6/130604653/punomorovokafu.pdf
    • http://dreamfarmeracademy.com/uploads/1/3/0/5/130588415/7836109.pdf
    • http://hopifai.info/uploads/2020/01/29/bokevibedo_goxugewapuv.pdf
    • http://mrsrenohasclass.com/uploads/1/3/0/4/130489446/dijewez.pdf
    • https://kolukobi.weebly.com/uploads/1/3/0/5/130546804/2235031.pdf
    • http://tiwa.loginenbanque.com/uploads/2020/01/28/3099955.pdf
    • http://caribbeanshadeproducts.com/uploads/1/3/0/6/130640009/kumepak.pdf
    • http://pheasanthillgardens.org/uploads/1/3/0/5/130590295/gunawuz.pdf
    • http://sweetestdreams.org/uploads/1/3/0/5/130589238/130589238.html#sample+application+letter+for+scholarship+grant+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011a9.bin
a68a8a8294e122cef46436f8791cd1e9bdad988e736c3089683f7d2cf7b734d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11A9 8044 bytes

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