Malicious PDF — malware analysis report

Static analysis result for SHA-256 3708e25d38753f1a…

MALICIOUS

PDF

31.3 KB Created: 2020-04-19 13:00:05 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 58ee4e79c5a24d02b89d6bf9b8aeaad7 SHA-1: 1a2e3cd6a4251ccddcc25c3e200cc95bbf75244a SHA-256: 3708e25d38753f1a7cd1f6101aac68202b6225f187e07c5cef0f784ea9af9f5e
62 Risk Score

Malware Insights

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

The PDF document contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, many of which appear to be part of a link farm designed to manipulate search engine results or direct users to potentially malicious content. The document body itself contains garbled text and some of the extracted URLs, reinforcing the idea that the primary function is to host these links.

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://piercingtechnology.com/uploads/1/3/1/3/131382274/131382274.html#bulleya+remix+dj+song
    • http://prisonblogmedia.com/uploads/1/3/1/3/131380236/e4f8b8da3763.pdf
    • http://funeralsmadesimple.org/uploads/1/3/0/2/130289731/dabove-xevatotuda-fofobabero-zejivozetoma.pdf
    • http://safetybritesolutions.com/uploads/1/3/0/7/130740053/cc3599c67554e2.pdf
    • http://backyardsanctuarydfw.com/uploads/1/3/1/6/131637584/vuporu_negazasaj_gifev_vexujatef.pdf
    • http://melissakunitzer.com/uploads/1/3/1/4/131453965/a96e82cc45.pdf
    • http://sarahveraldilmt.com/uploads/1/3/0/3/130323523/surunexa-febusofas.pdf
    • http://atxgreenawards.com/uploads/1/3/0/7/130740213/440e1bb168a.pdf
    • http://offtoseetheworldtravel.com/uploads/1/3/0/8/130813301/zurofe.pdf
    • http://i223.net/uploads/1/3/0/6/130605383/gijuwuzobewapu.pdf
    • http://garlandrealtygroup.com/uploads/1/3/0/3/130313588/6718298.pdf
    • http://nicoleolsthoorn.com/uploads/1/3/1/4/131406843/riguvaxozavo-lakuki-mupevabalaru.pdf
    • http://equusmedical.com/uploads/1/3/1/3/131379729/nexividawi_daselejifa_regozo.pdf
    • http://bridgewatermb.org/uploads/1/3/0/5/130590664/08c936.pdf
    • http://legacychoreo.com/uploads/1/3/0/5/130551267/ecdc7134.pdf
    • http://adniltonalves.com/uploads/1/3/0/8/130814534/lugugexegaxumawaluxu.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_off000053cd.bin
daaa315f83bb1714405ccdb854bcd607de16ea712f92af49304cc2761b0524ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53CD 7496 bytes

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