Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8e814decbe2bb8d…

MALICIOUS

PDF

35.0 KB Created: 2020-04-07 03:43:30 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 565bc0e138cb1207dce6381fca02c4b2 SHA-1: 32b3f3c0a4eebaee9165a4bb18b8521de335af5e SHA-256: a8e814decbe2bb8d2096c5e496996f5c06a443758a03f36f35521ff58f6e93c8
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this mass linking of external PDFs. No scripts were extracted, and the document body is heavily obfuscated, making it difficult to determine a more specific intent beyond the observed link distribution.

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://pvdprerogative.com/uploads/1/3/0/6/130620839/130620839.html#2k+draft+pack+simulator
    • http://francescdeverntallat.cat/uploads/1/3/0/7/130738918/6553231.pdf
    • http://wingluenwholesale.com/uploads/1/3/0/2/130271081/jufiwibekagugug.pdf
    • http://dayssincechrisdavishasgottenahit.com/uploads/1/3/0/6/130640198/18343c.pdf
    • http://thelilacedition.com/uploads/1/3/1/0/131070651/buwebomowa.pdf
    • http://dazzleitdesigns.com/uploads/1/3/1/3/131379356/bc13858a2d.pdf
    • http://williamshatner.space/uploads/1/3/0/6/130604768/2161875.pdf
    • http://primevalmovementconditioning.com/uploads/1/3/1/3/131380555/4560817.pdf
    • http://barnatstonewood.com/uploads/1/3/0/2/130272600/wisejuxilo.pdf
    • http://mhsptsa.org/uploads/1/3/0/7/130739875/tepigapoxe.pdf
    • http://brokenglass.website/uploads/1/3/0/6/130604795/7651181.pdf
    • http://uhadada.dk/uploads/1/3/0/6/130604882/6114724.pdf
    • http://puresimple.org/uploads/1/3/0/9/130969885/zukakeze.pdf
    • http://indistinctconversations.com/uploads/1/3/0/2/130273789/58d71.pdf
    • http://re-imaginarium.com/uploads/1/3/1/4/131454459/cfad4e.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_off000061ad.bin
2f818381b5db2a56d4eab9cac986097fe5cc5e8e4ba851580c596a768a23ee75		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61AD 7608 bytes

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