Malicious PDF — malware analysis report

Static analysis result for SHA-256 3324437c3dbe9563…

MALICIOUS

PDF

38.1 KB Authoring application: Scribus
MD5: c6b86aebf6fa65c89948cf29a2a8b56c SHA-1: e1f3bfeb951164eb23350d83e681bf5bd2d868aa SHA-256: 3324437c3dbe95636a496bf75e9f9072001437d253232515b90f362e5bcace2f
150 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm, with multiple URLs pointing to PDF files on various domains. The document body text, while partially corrupted, mentions '100 cotton bed sheets canada' and includes several of these URLs, suggesting a lure to a phishing or malware distribution site. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent.

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://minnesotaprayerhotline.org/uploads/1/3/0/3/130313577/pigumajusod.pdf
    • http://auntybencookie.com/uploads/1/3/0/6/130604144/1670134.pdf
    • http://gawugi.kvartum.ru/uploads/2020/01/29/wavumupoba.pdf
    • http://scw8whedonstudiestv.com/uploads/1/3/0/6/130605153/zimenejoze.pdf
    • http://craftsecurity.ie/uploads/1/3/0/5/130547728/nexivemagi-vapesopobipinom.pdf
    • http://midwestlightingllc.com/uploads/1/3/0/4/130483540/a301192eb.pdf
    • http://sweetestdreams.org/uploads/1/3/0/4/130488615/130488615.html#100+cotton+bed+sheets+canada

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001172.bin
8472cc1c49dd40529c35919d644a4a4d29b126caa81506deec9b29bb7c159537		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1172 9408 bytes

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