Malicious PDF — malware analysis report

Static analysis result for SHA-256 3286ab7f9cb568cf…

MALICIOUS

PDF

40.5 KB Created: 2020-03-30 04:07:21 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 62e2fbb0c218a4e164a17e7e29231a16 SHA-1: da1d22fefdedee525329296f99aeb022abd9dedf SHA-256: 3286ab7f9cb568cf6965d9b1a9b51f62311fe0e931f7cf796a3a7cf2b4261209
62 Risk Score

Malware Insights

MITRE ATT&CK
T1598 Stage Capabilities: Gather Victim Identity Information T1204 User Execution: Malicious Link

The PDF document contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or SEO manipulation tactic. The document body contains garbled text and what appears to be metadata from the PDF creation tool, but no explicit malicious instructions. The primary attack pattern observed is the distribution of numerous URLs, likely intended to direct users to potentially malicious content or to manipulate search engine rankings.

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://www.equestrianeliteatapplejackfarm.com/uploads/1/3/1/3/131398479/131398479.html#formula+de+limites+reales+estadistica
    • http://tassay-nsk.ru/uploads/1/3/0/2/130273983/zokezosejugima_guvovapufiwi.pdf
    • http://adriaticexpressllc.com/uploads/1/3/1/3/131380850/sotuxonifefuje_bexaginimut_mibali_maguripukafi.pdf
    • http://r2rconstructive.com/uploads/1/3/1/3/131381787/bavelafutogebum.pdf
    • http://luckyleafcannabis.com/uploads/1/3/0/5/130590224/pujurufebetag_nutedazefaro_lexajerexeva.pdf
    • http://robanka.com/uploads/1/3/1/3/131379132/jifexemivuj_pizodubexot_falorodivalud_vukikedonutuxo.pdf
    • http://tecrecsidemount.com/uploads/1/3/1/4/131407355/7437611.pdf
    • http://txervrodeo.com/uploads/1/3/0/7/130739000/daduxojizasuxuku.pdf
    • http://debudgetheer.nl/uploads/1/3/0/6/130605517/fegen_gukivatuwove.pdf
    • http://motoemporio.com/uploads/1/3/0/4/130436202/233ebcbb97f.pdf
    • http://villajubilee.com/uploads/1/3/0/5/130545537/3750822.pdf
    • http://consultandcapital.com/uploads/1/3/1/3/131384058/8946395.pdf
    • http://tryggerclothing.com/uploads/1/3/0/6/130640025/xovuwuzom.pdf
    • http://1stclassmovingcarolinas.com/uploads/1/3/0/5/130545475/4282094.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_off00007243.bin
5dd032b1f731da66bc0c3a08449b2021893387c26287581f1330a257ddccdcc7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7243 9100 bytes

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