Malicious PDF — malware analysis report

Static analysis result for SHA-256 44313a3e1a34c548…

MALICIOUS

PDF

38.5 KB Created: 2020-04-10 20:02:01 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6e1612833e0c98c882f837eddf842117 SHA-1: 5f9698ae4ade211a169681489e0cb1072718d3e7 SHA-256: 44313a3e1a34c548a458f072285998ee7454261c7ecf2a8767f4a8e2189bb054
62 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links likely serve as a link farm to direct users to potentially malicious websites. The document body is heavily obfuscated and does not provide clear intent beyond the presence of these 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://colonialreinvestment.com/uploads/1/3/1/3/131381518/131381518.html#geography+alive+10
    • http://custompinsforyou.com/uploads/1/3/0/8/130874164/7485480.pdf
    • http://pacwestinteriors.org/uploads/1/3/0/5/130589412/9657831.pdf
    • http://lunaumbrawinery.com/uploads/1/3/0/5/130539035/wetixe.pdf
    • http://jlrodgers.org/uploads/1/3/0/4/130435893/9d9aced317617.pdf
    • http://saltermotorbikes.com/uploads/1/3/0/7/130776518/5143552.pdf
    • http://franklinfi.com/uploads/1/3/0/5/130550666/3bb53ba5b.pdf
    • http://chiroptics.net/uploads/1/3/0/4/130483373/3743968.pdf
    • http://goldenwinternational.com/uploads/1/3/0/7/130738831/nuwikukip-suzobadepi-tudovadefuze-viwevodaruka.pdf
    • http://tamtampr.com/uploads/1/3/0/2/130287997/36164981649e7.pdf
    • http://myhealthyspirit.org/uploads/1/3/0/7/130738731/sadedobidepububimu.pdf
    • http://m2artndesign.com/uploads/1/3/1/4/131406321/5c16ef8d2956852.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_off00006d60.bin
c90b41f694113fea4a8d6174f34c6cad792b8643a04d1103ec55d546c06d4d44		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D60 7900 bytes

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