Malicious PDF — malware analysis report

Static analysis result for SHA-256 96b4cd614920f5f3…

MALICIOUS

PDF

46.4 KB Authoring application: pdf-parser
MD5: fc6518a211fff02b54031a5c34ab1156 SHA-1: 7ccb168ad50051a47e8c8edb665063f68ba2c428 SHA-256: 96b4cd614920f5f3dfd7f2dd3cedd89cee7444413c822d1de0ec90afc523df6c
200 Risk Score

Malware Insights

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

The PDF file contains a link farm pointing to external PDFs and HTML content, a common technique for SEO poisoning or redirecting users to phishing sites. The document body, though partially corrupted, suggests a lure related to 'SBI account opening form online'. Heuristics indicate this is a credential harvesting or payment redirection lure, consistent with business email compromise tactics. The ClamAV detection further supports its malicious nature.

Heuristics 5

  • 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
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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://the-joy-of-syntax.com/uploads/1/3/0/5/130539427/9763506.pdf
    • http://audicionamericas.com/uploads/1/3/0/6/130621100/nugavelan.pdf
    • http://unsubscribetoviolence.com/uploads/1/3/0/6/130604778/6835574.pdf
    • http://shardexplorers.com/uploads/1/3/0/6/130604169/130604169.html#sbi+account+opening+form+online

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000fbf.bin
7989cbc56a4bd37140b7b77c86f2463a75f9c8c6622cdbf89d3ef4b8d25bd7b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFBF 8292 bytes

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