Malicious PDF — malware analysis report

Static analysis result for SHA-256 8060ea340b9a6922…

MALICIOUS

PDF

46.8 KB Created: 2020-07-10 18:31:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49b0fe6b1966e98d25ce3e087a93e7a7 SHA-1: f1b86c6674b6d1f878c8c474ca4889f7fa137e23 SHA-256: 8060ea340b9a6922b69870822dca52c2c7ea9230c81b677a08871c5fafae4ae4
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One of the primary links directs to a known malicious redirector. The document body, though partially obfuscated, also contains URLs that appear to be part of a link farm designed to attract traffic. This suggests a phishing or SEO poisoning attack where the goal is to drive users to malicious or compromised websites.

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=livros%20sobre%206%20sigma%20pdf
    • http://files.marketinginsanity.net/uploads/1/3/0/8/130813516/jimiralu.pdf
    • http://files.caritas-academy.com/uploads/1/3/1/3/131380288/755478.pdf
    • http://files.asclima-kondicioner.com/uploads/1/3/1/4/131453823/dulilojawe-muderu-xanome-dumudajono.pdf
    • http://files.texascenterforregionalstudies.net/uploads/1/3/1/8/131856381/29afc.pdf
    • http://files.districtclaycenter.com/uploads/1/3/0/7/130738949/dupazadatonafezo.pdf
    • http://files.julianoshea.com/uploads/1/3/1/4/131453807/jibumojexoje.pdf
    • http://files.andreamalinskymason.com/uploads/1/3/0/8/130814284/6058769.pdf
    • http://files.smilecommunicationsgroup.com/uploads/1/3/2/6/132681002/vebevemiru.pdf
    • http://files.seed2superfood.com/uploads/1/3/2/7/132740545/67c6ac.pdf
    • http://files.tinagutierrezartsphotography.com/uploads/1/3/0/7/130775383/remax-taxopugazaledu-fuluxibejurifuj-lavosiraleset.pdf
    • https://rululexakup.files.wordpress.com/2020/07/tekidezejixe.pdf
    • https://fadadidigar.files.wordpress.com/2020/07/96458770817.pdf
    • https://fewiveke.files.wordpress.com/2020/07/27920693213.pdf
    • https://fodexos.files.wordpress.com/2020/06/zozidujemanapo.pdf
    • https://dipabaze.files.wordpress.com/2020/06/jetixaf.pdf
    • https://pedonatip.files.wordpress.com/2020/06/ralonulikani.pdf
    • https://jabetukefil.files.wordpress.com/2020/07/46288066778.pdf
    • https://cdn.shopify.com/s/files/1/0430/4932/0610/files/83360411812.pdf
    • https://cdn.shopify.com/s/files/1/0428/8770/8825/files/75251832905.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/53940500656.pdf
    • https://cdn.shopify.com/s/files/1/0428/4655/2227/files/70136869597.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71860998709.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/21617342462.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_off0000746c.bin
71b8108dc02f889c86c8860cbf349b4d5c186ff001111301858e540a8462b4b6
pdf-font-stream PDF embedded font (sfnt) at offset 0x746C 5224 bytes
font_01_sfnt_off00008632.bin
3471148f2d285d8c4458fcbebae98e1c66413130fa86e4432c358de5dedceea3
pdf-font-stream PDF embedded font (sfnt) at offset 0x8632 12676 bytes