Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdb21068b33307dc…

MALICIOUS

PDF

40.0 KB Authoring application: ImageMagick
MD5: 7ac9b325f0d58ce3f5ac56b85507bad4 SHA-1: 6df53f856e50359f8c1d5b5d370595b514f1cd17 SHA-256: bdb21068b33307dc7b9b5d06ebf5a564242d1a35e6f9f51067ee1113ae441927
120 Risk Score

Malware Insights

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

The PDF_SEO_LINK_FARM heuristic indicates the presence of a large number of external links within the document, pointing to a link farm strategy. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious intent, likely related to traffic redirection or phishing. The embedded URLs are the primary indicators of compromise, facilitating the redirection to other malicious or SEO-manipulated content.

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://cuskga.com/uploads/1/3/0/6/130639699/9a8cff.pdf
    • http://neb.oilcompany.ru/uploads/2020/01/28/kusajuzojimel.pdf
    • http://clutteroftheday.com/uploads/1/3/0/5/130545360/4720496.pdf
    • http://janiw.ashurov.com/uploads/2020/01/29/dipikif.pdf
    • http://hlaa-or.com/uploads/1/3/0/5/130589080/sizatarikazuxe.pdf
    • http://kokopelliskorner.net/uploads/1/3/0/6/130639173/wejad-rodezubiku.pdf
    • http://ashleymichellesimpson.weebly.com/uploads/1/3/0/4/130483146/fowopaposizir.pdf
    • http://itilan.ru/uploads/2020/01/27/7db70af45.pdf
    • http://notimitak.bestpodsolnuh.ru/uploads/2020/01/27/42d11d26ded8.pdf
    • http://clucktruckportland.com/uploads/1/3/0/6/130621176/130621176.html#acorus+calamus+hindi+name

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001188.bin
74b9f00db83fd48cb0e8a430cb465345708bb9759d50cc4ba233272b244ab11b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1188 7524 bytes
font_01_sfnt_off000058d4.bin
540cb0ffbe0c0d226fa14807416c51df63418e4a8eb5125f1d0b4fa3a46cbea6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58D4 6892 bytes

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