Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f27ef42230acb3d…

MALICIOUS

PDF

35.9 KB Created: 2020-05-19 09:41:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 785760ec5572499a4db863c1a8ed1856 SHA-1: 305e891f907d9dbb2749151add018548919c1149 SHA-256: 2f27ef42230acb3dad94f32c16c5e419217e6c108aeb7cf9c29119654d172b1f
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, many of which point to uniquely named PDF files on various domains. This pattern is indicative of a link farm or SEO abuse technique, often used to distribute malicious content or generate traffic. The document body contains garbled text and the URL 'http://ziawaste.com/uploads/1/3/0/4/130477310/130477310.html#does+jumin+han+is+gay' which appears to be a lure. No scripts were extracted, limiting the analysis of direct payload delivery mechanisms.

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://ziawaste.com/uploads/1/3/0/4/130477310/130477310.html#does+jumin+han+is+gay
    • http://rightpointclinic.com/uploads/1/3/0/8/130814439/mubezi_nifekofa_ferebexinoji_toviwafupibafu.pdf
    • http://original-bakery.com/uploads/1/3/0/8/130874389/jukugabexegixapewem.pdf
    • http://cynthiaswigs.com/uploads/1/3/0/8/130873830/kivujaxobomoxil.pdf
    • http://cottageonthegreen.ca/uploads/1/3/1/1/131164218/sejotubej.pdf
    • http://greatamericanflowers.com/uploads/1/3/1/4/131408245/e7086080fa075e.pdf
    • http://stronglandscapecontractors.com/uploads/1/3/0/6/130620470/533663.pdf
    • http://bskate.com/uploads/1/3/1/4/131437275/17f1c1.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_off00005e80.bin
cf44689cb9de265117efb23c6a155cd52f72038a79e2431984615fbaf5243f8e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E80 11340 bytes

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