Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfea53cdb5d2301e…

MALICIOUS

PDF

62.6 KB Created: 2020-04-11 09:29:39 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7dc3d0428af1bedbcc8f247dbd8a8625 SHA-1: 186e0ef2bdd982ddcc0fd5230208d858b3fd9082 SHA-256: dfea53cdb5d2301e3c38fcae40be195b2b6ce6712866159b3dc769539d518486
82 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links likely serve to redirect users to malicious websites or to manipulate search engine results. The PRC/3D content is also noted, which can sometimes be used to hide malicious code. No scripts were extracted, but the sheer volume of outbound links suggests a content-driven lure.

Heuristics 4

  • PRC/3D content in PDF medium CVE related PDF_PRC_3D
    PDF contains PRC 3D content. PRC/U3D parsers have been a recurring Adobe Reader attack surface; treat as a related parser-exploit indicator rather than a specific CVE match.
  • 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://74-123-72-236.mgwnet.com/uploads/1/3/0/8/130813025/130813025.html#shortcut+to+strength+pdf
    • http://bipocwhoskate.com/uploads/1/3/0/2/130289675/1760317.pdf
    • http://musicminded.org/uploads/1/3/0/2/130289801/puzoje_batisuf_purolemonof.pdf
    • http://flapbackrecords.com/uploads/1/3/0/7/130776169/615c880736569.pdf
    • http://paulccleaningservices.com/uploads/1/3/0/6/130621163/a6cb0d5402c57.pdf
    • http://independentcallqualityevaluations.com/uploads/1/3/0/9/130969198/zuxuvajoxepof-limesejinavuxa-volug-wixonomumilome.pdf
    • http://www.yourbestlifestylist.com/uploads/1/3/1/4/131412235/5458086.pdf
    • http://ilovewonderwoman.com/uploads/1/3/1/6/131636642/58eb40127cbab.pdf
    • http://raediantevents.com/uploads/1/3/0/8/130874258/4232158137a.pdf
    • http://sociedadabierta.org/uploads/1/3/0/6/130604285/173317.pdf
    • http://thegroovyvegan.net/uploads/1/3/1/3/131380347/c5573ef8c597.pdf
    • http://krenee.online/uploads/1/3/0/6/130620690/1407742.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_off0000cdd9.bin
e149bfbffbbea0ae788daa1bfd184df2592bdcb93be65355b631ebd0c7af4e89		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCDD9 8424 bytes

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