Malicious PDF — malware analysis report

Static analysis result for SHA-256 e01a9f9c1136aace…

MALICIOUS

PDF

44.2 KB Created: 2020-08-14 14:24:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f3294738139d710b4c866df195c9fd4 SHA-1: efa139bf3f36c753b5baef01b45d2f73c420553f SHA-256: e01a9f9c1136aace7d7e8bfec6ea8aa64c46c77e3e31da431cf657e3723d8b78
120 Risk Score

Malware Insights

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

The PDF contains a link disguised as a climate change report, which redirects to malicious infrastructure. The PDF also contains a large number of external links, many hosted on Shopify, suggesting a link farm for SEO manipulation or to obscure the final malicious destination. No scripts were extracted, and the document body is heavily obfuscated, limiting further analysis of the payload.

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/pify?keyword=informe+sobre+cambio+climatico+onu
    • http://files.equivistacoaching.com/uploads/1/3/0/7/130739368/ninitejamapefabatota.pdf
    • http://jeruke.lilcreates.com/uploads/1/3/2/8/132814930/tamovi.pdf
    • http://munijoj.justicecollaborativeatcornell.com/uploads/1/3/2/3/132303382/nomes.pdf
    • http://files.maraudersfootball.net/uploads/1/3/1/4/131452771/2307763.pdf
    • https://cdn.shopify.com/s/files/1/0430/5669/3397/files/gubodof.pdf
    • https://cdn.shopify.com/s/files/1/0437/6949/5710/files/kuwokijoler.pdf
    • https://cdn.shopify.com/s/files/1/0431/4087/4408/files/virinafelowe.pdf
    • https://cdn.shopify.com/s/files/1/0432/7571/4715/files/act_overlay_not_showing.pdf
    • https://cdn.shopify.com/s/files/1/0434/1402/8444/files/aspern_papers_henry_james.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/7485095273.pdf
    • https://cdn.shopify.com/s/files/1/0436/5582/3525/files/96819910603.pdf
    • https://cdn.shopify.com/s/files/1/0427/7154/6279/files/luvavude.pdf
    • https://cdn.shopify.com/s/files/1/0437/4446/0951/files/57812808914.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54729765263.pdf
    • https://cdn.shopify.com/s/files/1/0428/7388/0739/files/tokafumejifiwuxogawizota.pdf
    • https://cdn.shopify.com/s/files/1/0429/0491/2031/files/pisufababejela.pdf
    • https://cdn.shopify.com/s/files/1/0431/0705/7825/files/seletefamomobo.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_off00006c65.bin
229670cbaf0fb3d528a8e1b5cdb34439479116ebdb8a7c40c45cb56828aa7603		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C65 5104 bytes
font_01_sfnt_off00007da1.bin
313c911256860439975e6daa2093ea122a0a365885436940cdff5f76fb1defc8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DA1 11340 bytes

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