Malicious PDF — malware analysis report

Static analysis result for SHA-256 feca6af577325fa4…

MALICIOUS

PDF

39.4 KB Created: 2020-04-17 04:14:36 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 50e5f10d762b62a4fb115d830f58506e SHA-1: a5a0e9fefab9bdc9c800761e55921ea3e97f4e40 SHA-256: feca6af577325fa474244a1781e5339163f4be44951f60a01e11bb17be0fb1c4
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which follow a pattern suggesting a link farm designed to manipulate search engine results. The document body, though partially corrupted, indicates a lure related to 'behavioral interview questions and answers'. The primary attack pattern involves directing users to potentially malicious websites through these embedded 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.
  • 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://postworkshis.com/uploads/1/3/0/6/130620710/130620710.html#behavioral+interview+questions+and+answers+pdf
    • http://nonca.org/uploads/1/3/1/3/131379236/5055ebb31f.pdf
    • http://richmondjobhunter.com/uploads/1/3/0/8/130873869/xofazej_vexikufizotu_sezupaj_dojelefanisaxip.pdf
    • http://newcastlenephrology.com/uploads/1/3/1/3/131379116/ab9e0d47ff.pdf
    • http://delightfuldesignbyandrea.com/uploads/1/3/0/4/130483146/85a30c858cbb0.pdf
    • http://leadershipandgrowth.net/uploads/1/3/0/6/130621025/3b496b5e6d1af76.pdf
    • http://hydechicinc.com/uploads/1/3/0/8/130813366/xejomumunufumuwelor.pdf
    • http://whatthefashions.com/uploads/1/3/0/4/130483773/764230.pdf
    • http://www.branislavbabic.info/uploads/1/3/0/6/130604730/4a338.pdf
    • http://sensationalumedical.com/uploads/1/3/0/3/130313379/zewuno.pdf
    • http://slickvipltd.com/uploads/1/3/0/7/130775916/juvotoxan_nesurezurifovig_guwibo.pdf
    • http://getyourbsn.com/uploads/1/3/1/4/131406438/33ceb93.pdf
    • http://bellechurchofchrist.com/uploads/1/3/1/4/131407945/afec49a42e51.pdf
    • http://madisonbows.com/uploads/1/3/0/6/130639836/damobujuxonel.pdf
    • http://goldentouchdetailcentre.com/uploads/1/3/0/6/130620389/fopuwaboberenibikewe.pdf
    • http://getyourbsn.com/uploads/1/3/1/4/13
    • 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_off000075ae.bin
f5a6fb66ab9b361f00a7fe445beca335ea4b1f56b138058bd3d6aa3ddd3ad08d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75AE 7352 bytes

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