Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd93db7c1f8062d6…

MALICIOUS

PDF

42.7 KB Created: 2020-07-08 12:31:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59b8b9bba79ff3769ed5d7314ab51d6b SHA-1: 812eb3f66dd36b3d8dcadd778e3bd4bb0296f574 SHA-256: cd93db7c1f8062d683254ee090db829a0315d732a24efa5c5076bc1ddb74f671
120 Risk Score

Malware Insights

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

The PDF file contains a link farm designed to redirect users to malicious infrastructure. The primary malicious URL identified is https://ttraff.ru/wb?keyword=disavowals%20or%20cancelled%20confessions%20pdf. The document body contains obfuscated text and metadata related to PDF generation, but no executable scripts were extracted. The presence of numerous SEO-optimized links points to a campaign aiming to distribute malware or phishing content.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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 https://ttraff.ru/wb?keyword=disavowals%20or%20cancelled%20confessions%20pdf
    • http://files.jasminkwan.com/uploads/1/3/1/4/131453248/kubomerebamel.pdf
    • http://files.ntsnational.com/uploads/1/3/2/7/132712514/makamalavizovapala.pdf
    • http://files.isabellegiroux.net/uploads/1/3/2/6/132681566/wopote-kusenawir-zogasofomira.pdf
    • http://files.moirajo.com/uploads/1/3/2/7/132710655/6052939.pdf
    • http://files.enneagraminteams.com/uploads/1/3/1/8/131871979/6525699.pdf
    • http://files.fhcamd.org/uploads/1/3/1/6/131637034/5932877.pdf
    • http://files.labcharter-pto.com/uploads/1/3/1/3/131379434/4b32ad6.pdf
    • http://files.fourfeltiefeet.com/uploads/1/3/0/9/130969082/9023412.pdf
    • http://files.swlamasternaturalists.org/uploads/1/3/1/3/131380953/5217495.pdf
    • http://files.brandonmoorecomposition.com/uploads/1/3/1/4/131438766/muxigem.pdf
    • http://files.cobilconnect.com/uploads/1/3/0/9/130969853/6ea8d66a.pdf
    • https://kavotufez.files.wordpress.com/2020/06/pafanozefifumeju.pdf
    • https://zaloguko.files.wordpress.com/2020/06/zirovukumosebatolonodebi.pdf
    • https://joxaloli.files.wordpress.com/2020/06/dolemolufevetila.pdf
    • https://serifutaje.files.wordpress.com/2020/07/paderapofejivukujowumeta.pdf
    • https://zisiwemebix.files.wordpress.com/2020/07/lisajilez.pdf
    • https://sagonisixo.files.wordpress.com/2020/06/gomem.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_off00006a9a.bin
692f8c69ca58d7674de746e705e8d315312967ce60a8bae3deed16451ee7da47		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A9A 5008 bytes
font_01_sfnt_off00007bb6.bin
96d1e76b7f5500f87a09dde417afbaef59f7be3c1fe5d6c1c435864b3eac07a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BB6 9940 bytes

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