Malicious PDF — malware analysis report

Static analysis result for SHA-256 44d375281cc7fea8…

MALICIOUS

PDF

40.1 KB Created: 2020-04-10 19:52:27 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 948c137fb9a70fd6aeed36ca04e3e780 SHA-1: ea2d6386caedc4f195531549586de2dd24956dd0 SHA-256: 44d375281cc7fea8a14fc593d38d80bcb355162cb2f72ad8837fe37183df96d8
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The document body, though heavily obfuscated, contains references to URLs that are also present in the link farm. This indicates a likely attack pattern focused on SEO manipulation or distributing further malicious content via 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://dlmodas.com/uploads/1/3/0/7/130776819/130776819.html#ags+world+history+textbook+pdf
    • http://sow2grow.online/uploads/1/3/0/5/130550772/fb5ba2b8d45d325.pdf
    • http://thepremiumpost.com/uploads/1/3/1/3/131379255/772901.pdf
    • http://bestmena.com/uploads/1/3/0/5/130588716/5365192.pdf
    • http://gcprofiling.com/uploads/1/3/0/5/130550738/8724384.pdf
    • http://nsksstaffers.com/uploads/1/3/0/2/130288962/dibapupu.pdf
    • http://gvconsult.be/uploads/1/3/1/4/131437444/mifokikezi.pdf
    • http://thegiftalley.com/uploads/1/3/0/7/130775372/44dab60c.pdf
    • http://theholstoncottage.com/uploads/1/3/1/4/131454049/sinonogaxor.pdf
    • http://eastnastyapparel.net/uploads/1/3/0/3/130312974/wojune_meweje.pdf
    • http://rhinoscribe.net/uploads/1/3/1/4/131453226/953704.pdf
    • http://visionary-affairs.com/uploads/1/3/0/2/130291766/tuxivorafibirik.pdf
    • http://nagibahmed.com/uploads/1/3/0/9/130969714/loxopegaxivuguzowope.pdf
    • http://hutchinsontransport.com/uploads/1/3/0/7/130776444/redakirubokak.pdf
    • http://golf-for-good.org/uploads/1/3/0/6/130621397/tugulopafam.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_off00007581.bin
8bb151203df7e7ac19295b4aa9799724ab7125277537dae85134e55853d0c8e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7581 7708 bytes

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