Malicious PDF — malware analysis report

Static analysis result for SHA-256 08aaf737b854b728…

MALICIOUS

PDF

34.1 KB Authoring application: Soda PDF
MD5: b8d525b1f34e293f42c196a5baedceca SHA-1: 387ed272c9c82c6930598262f483cc37fa106e62 SHA-256: 08aaf737b854b7282685450a90a3487ada4f49f23270aa130860ff4cb2e2c376
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links to other PDF files hosted on various domains, indicating a link farm or SEO poisoning tactic. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to drive traffic to these external resources or potentially host malicious content. No scripts were extracted, and the document body is heavily obfuscated.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://refugechurchva.org/uploads/1/3/0/4/130436492/71b31261.pdf
    • http://wildsouthentertainment.weebly.com/uploads/1/3/0/6/130620773/f6e7eeb.pdf
    • http://mynaturalplace.com/uploads/1/3/0/4/130477176/9190141.pdf
    • http://rockofoakland.com/uploads/1/3/0/2/130289213/9872487.pdf
    • http://qq10qq.top/uploads/2020/01/28/ridasolomex-turez.pdf
    • https://fodejevodu.weebly.com/uploads/1/3/0/4/130436173/6154796.pdf
    • http://ximitames.paradise-hotel.ru/uploads/2020/01/28/52cab3ba528b.pdf
    • http://neptuneinvesting.com/uploads/1/3/0/2/130273748/130273748.html#sensors+and+actuators+book+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000111d.bin
6f7045ba9e059be57ff5673490f7a85a5ef8f0556ea8f00989f1a76b7ad167a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x111D 8124 bytes

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