Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffd073cc605e10d5…

MALICIOUS

PDF

36.6 KB Authoring application: Nitro PDF
MD5: 5777fa1319464c21109821f8bf4471ee SHA-1: 0b7af7580eabbd78b72d5dce824fb72b85cc2bf9 SHA-256: ffd073cc605e10d5ae2b229ebe18c78a4a58ab550e26a35c13f827494711513d
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to other PDF documents hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content, as suggested by the 'PDF_SEO_LINK_FARM' heuristic. The ClamAV detection also flags it as phishing-related. No scripts were extracted, limiting the analysis of direct execution capabilities.

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://amberbeuthien.com/uploads/1/3/0/5/130588686/6021837.pdf
    • http://tanquerita.com/uploads/1/3/0/4/130476505/1220529.pdf
    • http://michelleleblancshortstories.com/uploads/1/3/0/2/130271019/8538814.pdf
    • http://myforeclosurelawyer.net/uploads/1/3/0/5/130551864/kozekozeruz.pdf
    • http://mynorthstarcares.com/uploads/1/3/0/2/130272420/a5de812ebb8f.pdf
    • http://warsofgod.com/uploads/1/3/0/6/130604427/9124001.pdf
    • http://mustplays.com/uploads/1/3/0/6/130639407/vijoxitejotejetedu.pdf
    • http://mingalarfoods.com/uploads/1/3/0/2/130288318/9928437.pdf
    • http://daily-antiquing.com/uploads/1/3/0/7/130740623/3918009.pdf
    • http://absolutionnyc.com/uploads/1/3/0/4/130489898/6140425.pdf
    • http://x0991726xstreamtravel.xsideas.com/uploads/1/3/0/6/130605357/130605357.html#american+heart+association+cpr+guidelines+for+adults

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000383f.bin
a88552528cbb071cd25c36471b503e2aa83fe07000cb6b5fa2e67669fcf9cb8f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x383F 8200 bytes

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