Malicious PDF — malware analysis report

Static analysis result for SHA-256 9903a58789d902e6…

MALICIOUS

PDF

29.8 KB Authoring application: Scribus
MD5: 4b6211c602173b54176e0e8fccb7f341 SHA-1: 011712abfb1fc4ce21eca0c63fb0eccc133b0fd9 SHA-256: 9903a58789d902e609194976fcc4c226b7466b94ff245ff862bf7ca1a1d9cd81
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to other PDF files. The document body text presents a lure related to an 'English level test' to encourage users to click these links. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or malicious redirection intent. The primary goal appears to be directing users to a network of linked documents hosted on various domains.

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://donenfeldlaw.com/uploads/1/3/0/6/130621342/8177484.pdf
    • http://ja-sauer.family/uploads/1/3/0/7/130739194/9523075.pdf
    • http://my-closet-online.com/uploads/1/3/0/5/130539912/9310038.pdf
    • http://msjarrell.com/uploads/1/3/0/4/130477979/5643e59d.pdf
    • http://mytipsytaboo.com/uploads/1/3/0/6/130639269/sebok.pdf
    • http://nadinelambert.com/uploads/1/3/0/4/130483783/127481f5663.pdf
    • http://bandonplayhouse.com/uploads/1/3/0/6/130604193/130604193.html#english+level+test+british+council+answers

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001020.bin
3e8e35385049fbe401c16c71b92b2387d34a691cbabe20ad18a4b27eb3a1e724		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1020 7196 bytes

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