Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2dfcc2a2e7420e6…

MALICIOUS

PDF

30.0 KB Created: 2020-06-06 05:31:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 69239ad7afc863fd9fcb002c562c6c39 SHA-1: bdae0b0c6595d40d91429464cc78287febba943f SHA-256: b2dfcc2a2e7420e628524c4b5fabe6dcf447be5ffe380637deb91b3283d7765c
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, many of which point to uniquely named PDF files on various domains. This pattern is indicative of a link farm or SEO spam technique used to distribute malicious content or redirect users. The document body itself contains garbled text and some of the extracted URLs, reinforcing the idea that the primary function is to lead the user to external, potentially malicious, resources.

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://islanovarealty.com/uploads/1/3/1/4/131406365/131406365.html#oflu+hoca+indir
    • http://neliscreations.com/uploads/1/3/1/3/131383453/fc958abbc.pdf
    • http://thekreativecard.com/uploads/1/3/0/3/130323697/7112108.pdf
    • http://lintonwestern.com/uploads/1/3/0/7/130738706/popeletorofela.pdf
    • http://cathyallyn.com/uploads/1/3/1/1/131164202/48ba8ed7a033d00.pdf
    • http://thelittlemediacompany.co.uk/uploads/1/3/0/8/130874569/1880726.pdf
    • http://webdisk.pelilens.com/uploads/1/3/0/6/130621687/riramol-veworukokomeji-pazuzijekaka-nesapi.pdf
    • http://mta-sts.mail.forestlanebotanicals.com/uploads/1/3/2/3/132303278/5905725.pdf
    • http://ricogossett.com/uploads/1/3/0/9/130969645/469514.pdf
    • http://islanovarealty.com/uploads/1/3/1/4/131406365/terms.html
    • http://islanovarealty.com/uploads/1/3/1/4/131406365/dmca.html
    • http://islanovarealty.com/uploads/1/3/1/4/131406365/policy.html
    • https://pujudijopek.files.wordpress.com/2020/06/42803610268.pdf
    • https://zolibuvove523289473.files.wordpress.com/2020/06/kewobefumekolezimujemagut.pdf
    • https://liletaku.files.wordpress.com/2020/06/wojowabofagodenejavi.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_off00004af0.bin
c3f23ea3d7c3e7f17f3f7c6b071ca431f40f00125223cfb51cc252ca1528daa8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4AF0 10200 bytes

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