Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9dc8d0fb27ad9cf…

MALICIOUS

PDF

39.3 KB Created: 2020-05-22 08:14:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 85c281b52a678a4ce142ac295087b40e SHA-1: 6d85778ff09f894dc523ddca9675d9d1ad0dfd6d SHA-256: a9dc8d0fb27ad9cf44c60106caec7d84fd71dcf9e9c85fddd4bac7f42dd11dbf
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of external links, many of which point to PDF files hosted on unrelated domains, suggesting a link farm or SEO abuse tactic. One of the embedded URLs, 'http://wcd-qrrc9ubu.mgh-r.ch/uploads/1/3/0/6/130605248/130605248.html#serial+number+anno+2070+keygen', indicates a lure for a software key generator. No scripts were extracted from this sample.

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://wcd-qrrc9ubu.mgh-r.ch/uploads/1/3/0/6/130605248/130605248.html#serial+number+anno+2070+keygen
    • http://fysiotherapievandergoes.nl/uploads/1/3/0/4/130476525/wokizonuju.pdf
    • http://palomagrapevinetx.com/uploads/1/3/1/6/131606636/6668317.pdf
    • http://universal-financial-center.com/uploads/1/3/0/4/130488732/8293880.pdf
    • http://secondearthchrysalis.com/uploads/1/3/0/5/130590224/rajiwexabugu_zudolelowobe.pdf
    • http://filmethiopia.com/uploads/1/3/1/3/131383588/baledi-vukakexe-lowumobid.pdf
    • http://sheeqhair.com/uploads/1/3/0/7/130740477/8871807.pdf
    • http://sophiamariehandmadeclothingaccesories.com/uploads/1/3/0/4/130476661/3194471.pdf
    • http://rhonddaladieshockey.co.uk/uploads/1/3/0/7/130738482/1400259.pdf
    • http://agleco.com/uploads/1/3/0/7/130740084/6f0c9adf950cd.pdf
    • http://countrygirlbowtique.com/uploads/1/3/0/7/130739575/4a05e4.pdf
    • http://notariaatbijnsdorp.nl/uploads/1/3/0/8/130874309/cc476b869abbe.pdf
    • http://meulemanracingpigeons.com/uploads/1/3/0/6/130621657/jamawaxeruta-napemobi.pdf
    • http://kerelyn.com/uploads/1/3/0/7/130775627/b5f284b9929.pdf
    • http://mynaturalplace.com/uploads/1/3/1/4/131414019/mavidotasuka-saresifin-jibixovikul-jepokekezivamo.pdf
    • http://digitalsleepaid.com/uploads/1/3/0/6/130604546/cc2c69ea4b0c53.pdf
    • http://luvapy.org/uploads/1/3/1/6/131607229/3275533.pdf
    • http://anabelasbrides.com/uploads/1/3/0/3/130323092/notiruzal-xidare-wabigajamew.pdf
    • http://ggconsulting.care/uploads/1/3/0/7/130739607/914ffcb78b16b.pdf
    • http://topherfabrication.com/uploads/1/3/1/4/131406604/subesisit_zolodaxurewoji.pdf
    • http://eurofleetbrokers.com/uploads/1/3/1/6/131636862/131240.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_off00006bce.bin
de78a2669157dd813428295ee163b04e6832cf59e96cdff541fea2d54127fb81		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BCE 11088 bytes

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