Malicious PDF — malware analysis report

Static analysis result for SHA-256 de05a8a1901af655…

MALICIOUS

PDF

39.8 KB Created: 2020-05-21 12:58:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-08-25
MD5: afcd275cbed7d3501df11f66309547c2 SHA-1: 80793cc3eaa59da933e0186cff6e3fc621b4a9d1 SHA-256: de05a8a1901af655bc8d9b0ed3b11a1ce70cf74b8636528d49a688a8e546abab
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or SEO manipulation tactic. One of the embedded URIs points to 'kensilportfoliollc.com' with a query related to 'android whatsapp to iphone transfer', indicating a potential phishing or scam lure. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://kensilportfoliollc.com/uploads/1/3/1/3/131380688/131380688.html#android+whatsapp+to+iphone+transfer PDF link annotation
    • http://bellakreationsgifts.com/uploads/1/3/1/4/131410939/pebizakom.pdfIn PDF document text
    • http://cultofeywear.com/uploads/1/3/0/6/130639034/5380957.pdfIn PDF document text
    • http://opznblosjes.nl/uploads/1/3/1/3/131380592/7579868.pdfIn PDF document text
    • http://epicmafiamentorship.com/uploads/1/3/0/6/130639766/e8f99d.pdfIn PDF document text
    • http://milissweetstogo.com/uploads/1/3/0/2/130289415/toxin-fuvewebulaliv-nomaza.pdfIn PDF document text
    • http://kellysquiltingcorner.com/uploads/1/3/0/3/130379114/8334878.pdfIn PDF document text
    • http://govfilingsonline.net/uploads/1/3/0/5/130538997/4090548.pdfIn PDF document text
    • http://rdavisphotography.com/uploads/1/3/0/7/130739052/9198637.pdfIn PDF document text
    • http://kl8n.com/uploads/1/3/1/3/131380470/davomolasadoxibep.pdfIn PDF document text
    • http://jdotech.net/uploads/1/3/0/6/130621349/xebokijejiwona-dazenenor-mafuti.pdfIn PDF document text
    • http://budapestupclose.com/uploads/1/3/0/4/130483062/ruduvebokiralo_wurezafikudedub_mokosaz.pdfIn PDF document text
    • http://blinknm.net/uploads/1/3/0/4/130436234/255692e9a0.pdfIn PDF document text
    • http://rchildrenrfuture.com/uploads/1/3/0/3/130323707/gekaladanawisotiw.pdfIn PDF document text
    • http://aici-pentru.com/uploads/1/3/0/5/130589442/506945428306.pdfIn PDF document text
    • http://ivorytowerblogger.com/uploads/1/3/0/6/130620478/tamowuzumitibalibiv.pdfIn PDF document text
    • http://waysandmeansconsulting.com/uploads/1/3/1/3/131379029/8ddb61a.pdfIn PDF document text
    • http://51vapellc.com/uploads/1/3/0/4/130491703/pozid.pdfIn PDF document text
    • http://mvbabysitting.com/uploads/1/3/0/6/130640078/xofom.pdfIn PDF document text
    • http://granthamcounselling.com/uploads/1/3/1/3/131383854/6183125.pdfIn PDF document text
    • http://telcone.com/uploads/1/3/1/4/131453288/2961980.pdfIn PDF document text
    • http://deshongphotographycom.com/uploads/1/3/0/6/130620185/1452027.pdfIn PDF document text
    • http://dustinsmiththerapy.com/uploads/1/3/0/5/130546118/6042941.pdfIn PDF document text
    • http://tcp-tcit.net/uploads/1/3/0/8/130874029/xawusep.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D82 11012 bytes
SHA-256: bbe5f5d48a8c1269f255419f3e451240067c584582a5aa33d6ece3eb0d69d1cb

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