Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c6d32afe328dec5…

MALICIOUS

PDF

36.3 KB Authoring application: Nitro PDF
MD5: 66b580274b9d9e9bd2c784c2c62c1ff0 SHA-1: 29742a43a40e34a60908df96c1fb3fcef3f64c1b SHA-256: 7c6d32afe328dec534d74d6e710fb492ec3b6d83dcc69fbc151aa4ace070505e
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to external PDF files, indicating a link farm designed to direct users to potentially malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malware distribution intent. No scripts were extracted, and the document body text is heavily corrupted, making it difficult to ascertain a more specific lure.

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://camarra.com/uploads/1/3/0/4/130436028/vivejamove.pdf
    • http://njetd.com/uploads/1/3/0/4/130475879/9265916.pdf
    • http://jacsmacdl.org/uploads/1/3/0/3/130379462/1831dbe2.pdf
    • http://musictheoryhelper.com/uploads/1/3/0/5/130550920/56462be71.pdf
    • http://norshus.com/uploads/1/3/0/2/130291475/4588297.pdf
    • http://numinersfootball.com/uploads/1/3/0/5/130551055/vasozaxalanovoneri.pdf
    • http://myjoepeezywear.com/uploads/1/3/0/7/130776185/92f9065006524.pdf
    • http://fluger.icu/uploads/2020/01/28/jonekefopefepaj.pdf
    • http://120lakeshoredrive.com/uploads/1/3/0/6/130620207/biwapivofunibaz.pdf
    • http://shardexplorers.com/uploads/1/3/0/5/130588923/130588923.html#define+information+asymmetry+in+business

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001192.bin
8c59f78a335cad97979c8e1399fb6eb27a3ffac0f8b775cab89dfac00a559820		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1192 7868 bytes

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