Malicious PDF — malware analysis report

Static analysis result for SHA-256 953e3f4af2d96367…

MALICIOUS

PDF

31.4 KB Authoring application: Poppler-utils
MD5: e4822b12af46cc238853dceb038eb648 SHA-1: 20f389a7fec6e284090d964418cecb45ff65b299 SHA-256: 953e3f4af2d96367eff235bd040fc8958fef6b45fcdc50460e95099fe60b2af4
130 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified as a link farm, which is a common tactic for phishing and malware distribution. The heuristic 'SE_INVOICE_LURE' suggests the document's content is designed to trick the user into interacting with these links. The embedded URLs point to external PDF files, likely serving as a delivery mechanism for further malicious payloads.

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
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://nevermoreacrespetrescueinc.com/uploads/1/3/0/6/130604955/924965.pdf
    • http://pnwcabinetry.com/uploads/1/3/0/8/130814535/vatifonimomel.pdf
    • http://agauos.com/uploads/1/3/0/4/130475984/misew.pdf
    • http://mynaturalhairspa.com/uploads/1/3/0/7/130739140/130739140.html#axis+mutual+fund+stop+form

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000f5c.bin
1c09df012420f97d60bd07904aea249242be31a4104c1313eb58491ede20b861		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF5C 7648 bytes

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