Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b7ded1a46a091fb…

MALICIOUS

PDF

34.8 KB Created: 2020-05-13 07:52:52 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 885cc05bac89e6dd260f855459b06216 SHA-1: c3c14f61cd4b53f929291f1ca5c552ea0e52ed80 SHA-256: 8b7ded1a46a091fbaabf556977bbd6bbb39c9a0fd552287d63f7716b962910a3
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded external links, a technique often used for SEO manipulation or to redirect users to malicious sites. The document body, though heavily obfuscated, contains text related to interview questions and also repeats several of the external URLs. No scripts were extracted from this sample, limiting the ability to determine further payload delivery or execution methods.

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://peoplelovegossip.com/uploads/1/3/0/5/130551112/130551112.html#instrumentation+technician+interview+questions+and+answers+pdf
    • http://mysoundcollective.com/uploads/1/3/0/6/130603810/petorapifololemikew.pdf
    • http://strategylifecoachingsalestraining.com/uploads/1/3/0/5/130589267/tifor_kujobadesebe_fobiso_sibotonixokob.pdf
    • http://richformtitanium.com/uploads/1/3/1/3/131383469/0e0e717f4a89a6.pdf
    • http://pitkulup.net/uploads/1/3/0/6/130604366/nisipuderimos.pdf
    • http://stbasilpreschool.org/uploads/1/3/1/3/131379447/boxazagegib.pdf
    • http://wcbasketballchallenger.ca/uploads/1/3/0/6/130621720/848888.pdf
    • http://pioneervalleyaco.com/uploads/1/3/1/4/131437435/8215946.pdf
    • http://infinityhuborlando.org/uploads/1/3/0/6/130639705/5eb5a0c.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_off00005b39.bin
02a23d052d59ddee5886eae94974651f8ac804aa99c1e2cd3fa57ab9e292db68		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B39 10632 bytes

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