Malicious PDF — malware analysis report

Static analysis result for SHA-256 f03d9ec771355bc6…

MALICIOUS

PDF

32.9 KB Authoring application: GIMP
MD5: 8f506e5094400b9242b53c7c0229bbc3 SHA-1: f9bfeea3d8e2aa89a5be96eec66a179d1b7432cb SHA-256: f03d9ec771355bc6d72229e81185080b5b12041fe8c6f33cb685b1c08154590c
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The document body, though heavily obfuscated, contains references to 'Masonic charities of maryland scholarship' and includes URLs that appear to be part of a link farm. ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or malicious redirection intent. The primary attack vector appears to be luring users to click on these links.

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://newpstowing.com/uploads/1/3/0/5/130588393/misibuxeleki_gowipotipaw_ladomopa.pdf
    • https://nozevojifuniba.weebly.com/uploads/1/3/0/6/130604307/b026fe9eef4ac1.pdf
    • http://align432yoga.com/uploads/1/3/0/5/130588923/gulesab.pdf
    • http://danahalllcpc.com/uploads/1/3/0/6/130639157/matukixibow.pdf
    • http://alchemystvapes.com/uploads/1/3/0/2/130288397/dikamixifimudorof.pdf
    • http://badasspugclub.com/uploads/1/3/0/4/130488220/vogodo_buvunane.pdf
    • http://beavercrossministries.com/uploads/1/3/0/2/130271108/130271108.html#masonic+charities+of+maryland+scholarship

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010fb.bin
08d0d4fe1a27c793b78fea216f79719eb4ba5b7b088fd197f82e7f48ea101f30		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10FB 7924 bytes

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