Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ba7a548e2cd8b9d…

MALICIOUS

PDF

40.8 KB Created: 2020-03-20 12:41:47 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 895ea3eead02cd3ffeca18772103f5bf SHA-1: 1b2b4f5004fdfa287892b8bd9833c76db4f6b5cd SHA-256: 9ba7a548e2cd8b9d9201c0ed9003f2b2b008c60873a757d3077dcef1f60f5e75
62 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded external links, a technique often used for SEO manipulation or to redirect users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a potential attempt to distribute or host harmful content across numerous domains. No scripts were extracted, limiting the analysis of direct payload execution.

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://marasworld.blog/uploads/1/3/0/4/130483981/130483981.html#acute+critical+limb+ischemia+icd+10
    • http://firstclassdetailgalv.com/uploads/1/3/0/6/130620979/512117.pdf
    • http://strongpeopleprogram.org/uploads/1/3/0/5/130588678/6751976.pdf
    • http://www.le-manuel-du-tage-2.fr/uploads/1/3/0/5/130588493/8959533.pdf
    • http://bimzaos.com/uploads/1/3/0/5/130550952/5413557.pdf
    • http://pronetworks.us/uploads/1/3/0/8/130873944/446085.pdf
    • http://jottot.net/uploads/1/3/0/5/130550901/susupu.pdf
    • http://nuclearoven.com/uploads/1/3/0/3/130324136/pekaj.pdf
    • http://genasurphlis.com/uploads/1/3/0/6/130621325/zatamibat.pdf
    • http://pullingforhealth.com/uploads/1/3/0/7/130738667/28c8ec9a39cd030.pdf
    • http://irpimpianti.it/uploads/1/3/0/7/130739247/3403260.pdf
    • http://southernfertilityandsurgery.com/uploads/1/3/0/7/130775589/molapami.pdf
    • http://www.activecare.co.nz/uploads/1/3/0/5/130546885/9173903.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e11.bin
092b1e3b3bd2cd44a543148c7990d617ac8ca89170e6ec8645c2e04f9b17fe0d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E11 7960 bytes
font_01_sfnt_off00008ce4.bin
41d5c9cb4d60b7530e3cfd93a78efd430fe179aa57a8296e74fb8a971da4b0ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8CE4 2600 bytes

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