Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b849a9fada2d00a…

MALICIOUS

PDF

42.1 KB Created: 2020-04-30 00:11:17 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 72239718c71ad4c917914e064a7595d5 SHA-1: cbf94b1ec09a82a48712afeeb574da441aef142c SHA-256: 4b849a9fada2d00a44f8cab12cb4dec2506e9b4c35a5c3a209c0630cc90d8045
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which are hosted on unrelated domains and appear to be part of a link farm. The document body, though partially corrupted, suggests a lure related to e-commerce checkout pages. The primary goal appears to be directing users to a network of websites, likely for SEO manipulation or to host further malicious content.

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://black-thread.com/uploads/1/3/1/1/131164312/131164312.html#woocommerce+checkout+page+visual+hook+guide
    • http://iceboxskincare.com/uploads/1/3/0/4/130476605/kafufig.pdf
    • http://hedronmanagementconsulting.com/uploads/1/3/0/6/130603807/lewamowatusa-megezak.pdf
    • http://515postoak.com/uploads/1/3/0/6/130620849/7d5af9762.pdf
    • http://cleanfinishdetail.com/uploads/1/3/0/2/130288392/8207f199bdc4.pdf
    • http://blushingflowerco.com/uploads/1/3/0/5/130543280/vowosowijetik.pdf
    • http://depot-trade.com/uploads/1/3/0/8/130815192/3515991.pdf
    • http://bridgetswanson.com/uploads/1/3/1/6/131606491/9f183.pdf
    • http://heng889.com/uploads/1/3/0/8/130874591/775748e5eb5055a.pdf
    • http://gandrkitchenhardware.com/uploads/1/3/0/7/130738874/jigematad_tevifofopawedo_jibosabuwe_gigoxun.pdf
    • http://thecafm.com/uploads/1/3/0/6/130605384/203586.pdf
    • http://microfiberexpress.com/uploads/1/3/1/3/131383453/478e70.pdf
    • http://thepilgrimsinstitute.com/uploads/1/3/0/9/130969072/697036f845c3.pdf
    • http://blossomvodka.com/uploads/1/3/0/2/130289803/mikaju.pdf
    • http://greatinnovationsinc.com/uploads/1/3/1/4/131483327/kikexivakepidaludeda.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007497.bin
f8bce32da5885f5c9e76f6f4c2e3a7c475968153c912631e1d46fafd42032be0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7497 7520 bytes
font_01_sfnt_off00009219.bin
717be01f407221fa3e96d352c4c1bf533bcdf925cc18647a3c5928760b0f7f6c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9219 2732 bytes

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