Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e9f40441dfe75c0…

MALICIOUS

PDF

30.6 KB Created: 2020-06-03 13:51:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f8b31b5dd36cd9faac78d49ebf3713d SHA-1: 4b93c48fc389f5d69411f6c135e04e4407d2571e SHA-256: 7e9f40441dfe75c0e20c6c62d798577daae29dda92eaecdc6e4bcf223f4c5e94
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, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, many of which appear to be part of a link farm designed to manipulate search engine results or host malicious content. The document body contains text fragments that seem to be metadata or placeholders rather than user-facing content, reinforcing the idea that the primary function is link distribution. No scripts were extracted, limiting the ability to determine further payload delivery or execution.

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://generationsofpurpose.com/uploads/1/3/1/6/131637686/131637686.html#dandelion+girl+designs
    • http://arbitrorealtors.in/uploads/1/3/0/3/130313212/018b08e9624a.pdf
    • http://ltcsoftball.org/uploads/1/3/0/6/130639175/6233131.pdf
    • http://autodiscover.kylahraetoday.com/uploads/1/3/0/2/130288549/5343834.pdf
    • http://softhavenleggings.com/uploads/1/3/0/6/130621664/sonusad_luxiguseviguk_zuwix_rifupozu.pdf
    • http://mta-sts.mail.brownswoodnursery.com/uploads/1/3/1/4/131438003/19ac3.pdf
    • http://drgservices.info/uploads/1/3/0/6/130604386/libeguxonoxu_jebererof.pdf
    • http://beijingpost.org/uploads/1/3/1/4/131453960/3a97722e05d.pdf
    • http://pastoralpopcorn.com/uploads/1/3/0/6/130621496/votatax.pdf
    • http://generationsofpurpose.com/uploads/1/3/1/6/131637686/terms.html
    • http://generationsofpurpose.com/uploads/1/3/1/6/131637686/dmca.html
    • http://generationsofpurpose.com/uploads/1/3/1/6/131637686/policy.html
    • https://vikotefo.files.wordpress.com/2020/05/44495577694.pdf
    • https://wamilinapu.files.wordpress.com/2020/05/jimezo.pdf
    • https://zokuvadezod.files.wordpress.com/2020/05/wojowuvixuwadajofixuf.pdf
    • https://kisesut.files.wordpress.com/2020/05/73534566872.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_off00004fb0.bin
956b1d40c2740041b8f68cf14dce3ac0383db5379c30d5c6ea12dc5692208c80		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4FB0 9168 bytes

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