Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4e8fbd091aa94a9…

MALICIOUS

PDF

35.8 KB Created: 2020-05-22 00:17:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 673e4b2befc921f4e7b9c18b950fff9c SHA-1: 8b66d78d3b5b8f09760a2bb69c3e14744609028c SHA-256: c4e8fbd091aa94a91a2bc1b5d4513839ff3078706c0f1cdb097432aabcce74a4
62 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded external links, a technique often used for SEO spam or to redirect users to malicious websites. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a potential attempt to manipulate search engine results or distribute malware through a network of compromised sites. No scripts were extracted from this sample, limiting the ability to determine a more specific attack vector.

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://mikesrefinishing.com/uploads/1/3/1/6/131607889/131607889.html#remeha+avanta+plus+reset+button
    • http://ivyleagueteacher.com/uploads/1/3/0/2/130287553/kitojoxozonowagefuxa.pdf
    • http://springwoodgardencentrensw.com/uploads/1/3/1/4/131437834/220926.pdf
    • http://csantaella.com/uploads/1/3/0/5/130588153/86ed10f.pdf
    • http://salonshibumi.com/uploads/1/3/0/7/130775959/luvexuse-kinamufonimu-ziweroj.pdf
    • http://833photos.com/uploads/1/3/0/7/130776157/6171274.pdf
    • http://mahavidyas.com/uploads/1/3/0/5/130541211/zoregiluxi_wigixax_lefuro_xavefesawo.pdf
    • http://herrinsbc.com/uploads/1/3/1/4/131406480/dawuzedopogeda-levuv.pdf
    • http://movelikematt.com/uploads/1/3/0/7/130776511/nuxopojuvev.pdf
    • http://premieronlineins.com/uploads/1/3/0/3/130323210/646cc053941977.pdf
    • http://erfashionbtq.net/uploads/1/3/0/4/130483337/forifow-rizoxonever.pdf
    • http://teamggc.com/uploads/1/3/0/7/130740173/gazupepapata_xisukelezum_vikaduz_vibakates.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_off000062cd.bin
c260d01d50f268f2421452364004882ce5d428096043cb877854a92170098c8c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62CD 9868 bytes

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