Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d142be2f9461a33…

MALICIOUS

PDF

33.8 KB Authoring application: Soda PDF First seen: 2020-09-24
MD5: f7b7d1b69573ec80ea15f45df2366d9f SHA-1: 24189601e0fcb6bde9a16df9c3a066f82c820a69 SHA-256: 7d142be2f9461a33dcad098ae59eb7664f15255aeffacf1a130e80d1f75403f1
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a large number of embedded URLs pointing to other PDF files, indicating a link farm or a distribution mechanism for further malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or SEO abuse. No scripts were extracted, but the embedded URLs are the primary indicators of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://waygonebook.com/uploads/1/3/0/6/130604495/513735.pdf In PDF document text
    • http://keka.help-vk.ru/uploads/2020/01/28/253e5f42bb86a85.pdfIn PDF document text
    • http://brokersue.com/uploads/1/3/0/6/130605146/jalupu_vowowuvapezalu_nobunolidelov.pdfIn PDF document text
    • http://bravemotorsport.com/uploads/1/3/0/5/130551943/pavetewuve.pdfIn PDF document text
    • http://miprimapromediohoy.com/uploads/1/3/0/5/130588685/68a8300.pdfIn PDF document text
    • http://curanna.com/uploads/1/3/0/4/130477890/wukazimoxibofan.pdfIn PDF document text
    • http://moment2meditate.org/uploads/1/3/0/4/130476101/fuguvofidukepineb.pdfIn PDF document text
    • http://internalalignment.net/uploads/1/3/0/7/130775201/2d997.pdfIn PDF document text
    • http://gotxilus.weebly.com/uploads/1/3/0/3/130379110/6234373.pdfIn PDF document text
    • http://jigopo.vodabur1.ru/uploads/2020/01/28/55b454d2064928.pdfIn PDF document text
    • http://somersetfoodtrail.org/uploads/1/3/0/6/130621137/130621137.html#what+is+aquamin+calciumIn PDF document text

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E8C 7780 bytes
SHA-256: d032155c63ecb5a06b89a63d399f9461a4e3b4d8752f4bf0521734348addea6d

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