Malicious PDF — malware analysis report

Static analysis result for SHA-256 4872894b649ff80d…

MALICIOUS

PDF

38.2 KB Authoring application: ImageMagick
MD5: 2de30a8817befecd3ed077c8104d7de4 SHA-1: 99a042a7876454c56090f91838a51ed68c0e0eda SHA-256: 4872894b649ff80dedc607d25db02a73ea18e355e8c348c335ceb54c545a5f11
170 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to IP addresses or domains that appear to be part of a link farm designed to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly indicate malicious intent. The document body, though truncated, mentions 'Free powerpoint templates for company presentation', suggesting a lure to trick users into downloading or accessing malicious files.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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://strongfamily.info/uploads/1/3/0/4/130483634/ac299412e7f7765.pdf
    • http://confidentbusinesssuport.com/uploads/2020/01/29/7654854.pdf
    • http://marleyandcophotography.com/uploads/1/3/0/5/130543684/9ec264d.pdf
    • http://bestyethomeimprovement.com/uploads/1/3/0/6/130639815/wegok.pdf
    • http://kofowejar.coldmineral-soap.com/uploads/2020/01/29/c9398ff7e78db5.pdf
    • http://95.217.124.64:80/uploads/2020/01/28/4592654.pdf
    • http://kijofimiwa.migraskope.com/uploads/2020/01/29/gexofadaviwoji.pdf
    • http://mrshandyman.net/uploads/1/3/0/5/130538866/130538866.html#free+powerpoint+templates+for+company+presentation

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000112b.bin
ed6396db70fe8e79f29db2d42344912f9afa91e8263ea7b32ddda7e035bd6315		 pdf-font-stream PDF embedded font (sfnt) at offset 0x112B 7404 bytes

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