Malicious PDF — malware analysis report

Static analysis result for SHA-256 a422e4f13a237e9a…

MALICIOUS

PDF

37.8 KB Created: 2020-05-31 14:07:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7899927159c421470534b63882b43aae SHA-1: 8ddff63ec305aca69a052e99c0c2d7c20a967c28 SHA-256: a422e4f13a237e9a02e296cbb464a3c703dbe1a329271b97d55a80d58f86b73d
62 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or distribution network. The embedded document body text, while heavily obfuscated, contains some of these URLs, reinforcing the link farm attack pattern. 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://hostmaster.growglobalgroup.com/uploads/1/3/0/6/130604429/130604429.html#sambalpuri+uma+mp3
    • http://yjscience.com/uploads/1/3/1/4/131453465/japesekek.pdf
    • http://beautybypiret.com/uploads/1/3/0/2/130270776/8302193.pdf
    • http://frontiercosmetics.com/uploads/1/3/1/3/131380500/ec3b7e0a05.pdf
    • http://escape2you.com/uploads/1/3/0/6/130620455/suvolirupefega-dokokuraxi-badixawosuni.pdf
    • http://mrzwiring.services/uploads/1/3/1/4/131436997/6189eb432.pdf
    • http://inthemomencreativeexpressions.com/uploads/1/3/1/1/131164205/denufenila-bisiwakam.pdf
    • http://danceunderwater.com/uploads/1/3/0/9/130969686/eb71dab35359d.pdf
    • http://generalindustriesnetwork.com/uploads/1/3/0/5/130588968/nitosamifi.pdf
    • https://vovimoge.files.wordpress.com/2020/05/21278058024.pdf
    • https://xukukisogupu.files.wordpress.com/2020/05/72764005566.pdf
    • https://faxotobajej.files.wordpress.com/2020/05/limifakadejuxoxav.pdf
    • https://milunesisobe.files.wordpress.com/2020/05/kixolizitoginuvumijuxe.pdf
    • https://dipabaze.files.wordpress.com/2020/05/45096019616.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c0e.bin
16dd9c401d31ec5dd537c1f320b164e2650c6a9a0cd38ed8fef3d5c019455b66		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C0E 9700 bytes

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