Malicious PDF — malware analysis report

Static analysis result for SHA-256 b35d422d403debb0…

MALICIOUS

PDF

39.7 KB Created: 2020-04-09 12:42:09 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 415e9190395a4dce7808ab20b765bdde SHA-1: 0aadc1a805a8c15e5b429b57978c3b9a71b72921 SHA-256: b35d422d403debb040617190596f78ddb29fcb6605b543b2f39e6ff9e0dd3132
62 Risk Score

Malware Insights

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

The PDF document exhibits characteristics of a link farm, embedding a large number of external URLs. The primary heuristic identified a mass of external PDF links, suggesting a tactic to distribute malicious content or phishing lures across numerous domains. The document body contains garbled text alongside a URL, further indicating a likely attempt to disguise malicious intent. No scripts were extracted, limiting the analysis of direct payload execution.

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://brigewaterchain.com/uploads/1/3/0/5/130551053/130551053.html#la+educacion+fisica+en+mexico+actual
    • http://hydeparkviolinlessons.com/uploads/1/3/1/4/131453630/608e9947000c.pdf
    • http://fatimascrip.com/uploads/1/3/0/6/130639228/jofapagew.pdf
    • http://77thscouts.ca/uploads/1/3/0/5/130589228/wolanijagowoduxep.pdf
    • http://brittaniesworld.com/uploads/1/3/0/4/130483318/rikewo.pdf
    • http://enerwatts.com/uploads/1/3/0/6/130639656/8795466.pdf
    • http://esmesellstexashomes.com/uploads/1/3/0/6/130620568/2145259.pdf
    • http://hafadavid.com/uploads/1/3/0/5/130544734/6518664.pdf
    • http://jamiebrownmiller.com/uploads/1/3/0/7/130775604/6933085.pdf
    • http://drdutka-chirichetti.com/uploads/1/3/0/4/130476378/bodofamotipuxegu.pdf
    • http://indenizadpvat.net/uploads/1/3/1/3/131383309/5227429.pdf
    • http://calltostory.net/uploads/1/3/1/1/131163935/3213599.pdf
    • http://myhealthcoachusa.com/uploads/1/3/0/4/130435520/88491f23.pdf
    • http://offthemerrygoround.com/uploads/1/3/1/3/131379894/zuxuve.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_off00006b63.bin
497aa60e1ebdd5f88ee43de4aea391bee1cf1aa097d96a7d9d77c109ee55b466		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B63 11160 bytes

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