Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddbe3b0b0e31b08d…

MALICIOUS

PDF

43.4 KB Created: 2020-08-25 01:22:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 505c43de05c0ca46e51848bd9ea572f1 SHA-1: 190377d0b4d34aed13f0674e3fafed1b3e7ffbe3 SHA-256: ddbe3b0b0e31b08d0a18d8b396da4c61dbfd26d870cc94c20baffb877e2a11c3
140 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1566.002 Spearphishing Attachment T1059.005 Visual Basic

The PDF file contains a lure instructing the user to enable macros or editing, which is a common technique for malware droppers. It also contains a mass external PDF link farm, with one link pointing to a known malicious redirector at ttraff.com. The document body itself contains the malicious URL and several other URLs, some of which are hosted on Shopify. The presence of a malicious redirector and the lure to enable content suggest the document is designed to lead the user to malicious infrastructure.

Heuristics 4

  • 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.
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
  • 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.com/pify?keyword=5+inch+binder+spine+template
    • http://lemumot.lscrta.org/uploads/1/3/0/8/130874359/kapomemirokijijo.pdf
    • http://files.uhphisigmarho.com/uploads/1/3/1/4/131437005/tulelovot-lixev.pdf
    • https://cdn.shopify.com/s/files/1/0433/2932/3158/files/desus.pdf
    • https://cdn.shopify.com/s/files/1/0437/6317/1485/files/59333421658.pdf
    • https://cdn.shopify.com/s/files/1/0434/1124/3164/files/zusajujegakijox.pdf
    • https://cdn.shopify.com/s/files/1/0436/1243/8685/files/pirates_of_the_caribbean_piano_sheet_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/8984/4631/files/xinugoki.pdf
    • https://cdn.shopify.com/s/files/1/0427/9477/8791/files/75469627343.pdf
    • https://cdn.shopify.com/s/files/1/0438/0885/0081/files/engineering_technology_practical_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/5476/8021/files/61425893572.pdf
    • https://cdn.shopify.com/s/files/1/0432/6978/3720/files/documentos_del_magisterio_de_la_iglesia_catolica.pdf
    • https://cdn.shopify.com/s/files/1/0433/5009/8085/files/35515954508.pdf
    • https://cdn.shopify.com/s/files/1/0432/5956/0086/files/orokin_vault_mods.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_off00006c1f.bin
e66c3ba3552af53d5e8bbf98d870bbd5c549aa63b17348abb4cab83cbd896edd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C1F 5484 bytes
font_01_sfnt_off00007e82.bin
996617126fa7864bf3f260e4883cc0ff74a4b1011189cd1ad66a7a3dc363a0e8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E82 10060 bytes

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