Malicious PDF — malware analysis report

Static analysis result for SHA-256 c165d1ed283e6a0f…

MALICIOUS

PDF

38.9 KB Created: 2020-03-20 07:42:29 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 744837a76b86edf170ec5fa408dc77f5 SHA-1: e3af1cd4aafc8a220c469969ee09524af1a0f9a6 SHA-256: c165d1ed283e6a0f11d633630917ab7761ebb860e414f4fecc0c020c062a0a34
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1204.002 Malicious File: Malicious PDF

The PDF file contains a large number of embedded links to external PDF documents hosted on various unrelated domains. This technique is often used to inflate search engine rankings or to distribute malicious content through a link farm. No scripts were extracted, and the document body content is largely unreadable, making it difficult to determine a more specific attack pattern or family. The primary IOCs are the numerous external URLs found within the document.

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://monoki.org/uploads/1/3/0/7/130776478/130776478.html#mesa+boogie+dual+rectifier+tremoverb+combo
    • http://thegastrobus.com/uploads/1/3/0/6/130639246/bd3245c0b79324.pdf
    • http://nwintegrativeprimarycare.com/uploads/1/3/0/7/130740117/1b6b31dc.pdf
    • http://www.gemalchemy.com/uploads/1/3/0/8/130814173/nuliwudo.pdf
    • http://jams.rocks/uploads/1/3/1/0/131070786/a98278367504b.pdf
    • http://depthstudy5feudaljapan.com/uploads/1/3/0/6/130604547/1125095.pdf
    • http://customlovecandles.com/uploads/1/3/0/6/130621213/dd6d5.pdf
    • http://bitchinkitchengarden.com/uploads/1/3/0/5/130588787/noxixiduxozabiw_sakidem.pdf
    • http://wdfarrugia.com/uploads/1/3/0/5/130588733/60172f16.pdf
    • http://windrosecontabil.com/uploads/1/3/0/5/130539936/juken.pdf
    • http://9itgw.bpmtc.com/uploads/1/3/0/4/130477085/fegajuzasud_rafowobidaf_rewuv.pdf
    • http://livebake.com.au/uploads/1/3/0/9/130969477/12b91d88451739c.pdf
    • http://balmonline.com/uploads/1/3/0/4/130483745/foxikup.pdf
    • http://cesartechnologiesltd.com/uploads/1/3/0/2/130289428/sutilu_vumoviganizo_tekidinamupuno.pdf
    • http://branchlutheranschoolshaiti.net/uploads/1/3/0/6/130621141/bitafebivutura_rafux_turatigavaz_rixolizim.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_off00006d3d.bin
513b4b40be47cc355e36cb922855803cd5f4c6ab9732c78471696f1951ffba34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D3D 8668 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.