Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef732bf4dd02a85f…

MALICIOUS

PDF

37.4 KB Authoring application: Solid Converter PDF
MD5: 4b0bcc10ab20d8c2607b093b990f6c61 SHA-1: 8c07c6a81c4f7e82f5c36c4337019fae604af5af SHA-256: ef732bf4dd02a85fc92ff03f58de4e498a67a2cb8ddad799cc940cb4b6b00141
120 Risk Score

Malware Insights

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

The PDF document was flagged by ClamAV as Pdf.Phishing.TtraffRobotInstall-7605656-0. Static analysis revealed a significant number of embedded external URLs, indicating a link farm designed to redirect users. The heuristic PDF_SEO_LINK_FARM specifically identified this behavior, with the first URL being http://kclements.com/uploads/1/3/0/6/130621791/9453736.pdf. No scripts were extracted from this sample.

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://kclements.com/uploads/1/3/0/6/130621791/9453736.pdf
    • http://cattlecorp.net/uploads/1/3/0/4/130489523/5778322.pdf
    • http://fatblackcat.com/uploads/1/3/0/6/130639776/6619956.pdf
    • http://theworkingconnectionllc.net/uploads/1/3/0/2/130289375/monux_dabipevagemes_lukamabifik.pdf
    • http://baystategalvanizing.com/uploads/1/3/0/5/130588675/lewejusamiba.pdf
    • http://www.bunnyandclydeboutique.com/uploads/1/3/0/6/130621481/vojasabora.pdf
    • http://wedoopovertyreduction.com/uploads/1/3/0/6/130603936/voxogegumuzaduk.pdf
    • http://bunniesareus.com/uploads/1/3/0/4/130476359/edb1a4e7db58c.pdf
    • http://www.redbitemedia.co.uk/uploads/1/3/0/5/130543772/a105122c10.pdf
    • http://ecomjoy.com/uploads/1/3/0/2/130287867/mazafu.pdf
    • http://destinedtodelighttravel.voyagerwebsites.com/uploads/1/3/0/7/130740513/130740513.html#norm+referenced+and+criterion+referenced+tests+ppt
    • http://www.redbitemedia

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003c65.bin
2a3212b362ac065b151814f277e9281a9968cd996f100173e3840a08249fd4c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3C65 7916 bytes

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