Malicious PDF — malware analysis report

Static analysis result for SHA-256 c45572d2b3c10077…

MALICIOUS

PDF

44.3 KB Created: 2020-05-19 23:16:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5481735b6e8bf4e193451570379f8e74 SHA-1: 313ed160549c9d21324cee49343812dcc984597c SHA-256: c45572d2b3c100779733bbd3f497fcdeab1582230f6f8af2013a4a458fc8a373
62 Risk Score

Malware Insights

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

The PDF file contains a significant 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 mechanism. The document body itself is heavily obfuscated and contains some of the same URLs, reinforcing the link farm nature of the file. No scripts were extracted, limiting further analysis of direct payload delivery.

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://crowdergize.com/uploads/1/3/0/3/130323206/130323206.html#mass+effect+1+main+missions
    • http://sunriseblendroasters.net/uploads/1/3/0/5/130589423/3b5b30236.pdf
    • http://hudsonil.org/uploads/1/3/1/6/131636766/nipoxafo.pdf
    • http://languageservices-tal.com/uploads/1/3/0/6/130621788/0afed5e.pdf
    • http://puritynaturalskincare.com/uploads/1/3/1/3/131398091/1234087.pdf
    • http://goodlifetechnology.org/uploads/1/3/1/3/131379296/kizedezuzi.pdf
    • http://robvantol.net/uploads/1/3/0/8/130874340/wanikesegubasu.pdf
    • http://goldcrayonart.com/uploads/1/3/0/7/130738562/zuzaxulinuse-noxixajuwu-mexalapewe.pdf
    • http://rancinternational.com/uploads/1/3/1/3/131379578/wogewad.pdf
    • http://cathedralmountainknifeworks.com/uploads/1/3/0/4/130476970/mixojigajawi_kajali.pdf
    • http://landmarkinstallnow.com/uploads/1/3/0/7/130739856/297462e8241e58.pdf
    • http://energeticplay.com/uploads/1/3/1/8/131856176/ponokobomovexibu.pdf
    • http://pumpkinandblush.com/uploads/1/3/0/7/130776150/1195760.pdf
    • http://frankfresh.com/uploads/1/3/0/8/130814127/donixuxux-zeraloriniva-moxetirod.pdf
    • http://schenectadyquest.org/uploads/1/3/0/9/130969918/sefanoketeja-doninakem-pujawekunusaf-maxebi.pdf
    • http://sonoraroad.com/uploads/1/3/0/7/130775328/4a071dc3ef04.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_off0000805b.bin
544998711f2884f7efd0386e4eff0e4c60c72b26f93a8bece325a69bfc0866ef
pdf-font-stream PDF embedded font (sfnt) at offset 0x805B 11040 bytes