Malicious PDF — malware analysis report

Static analysis result for SHA-256 23ee2868dfd64817…

MALICIOUS

PDF

45.2 KB Created: 2020-08-15 04:40:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 91ccaf62845e57a290abb0bd3b870da4 SHA-1: 97e8a868d2b5108e23894b7679464e81ec3caabd SHA-256: 23ee2868dfd648173e3471c8e57cb87d12b4885cfd0f95e16d81c58bdb59b4c6
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link to `ttraff.ru` is identified as a malicious redirector. This suggests the document is part of a link farm or SEO poisoning campaign designed to lure users to malicious sites. The presence of the `ttraff.ru` URL indicates an attempt to redirect users to potentially harmful content, likely for phishing or malware delivery.

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=passive+voice+konu+anlat%25C4%25B1m%25C4%25B1+pdf
    • http://tefejib.nicolelamothe.com/uploads/1/3/1/4/131452977/803b73c33.pdf
    • http://files.hempologyabq.com/uploads/1/3/0/7/130739247/712dc5f7.pdf
    • https://cdn.shopify.com/s/files/1/0433/1339/7913/files/sivuzilanurelejemiz.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/99594865370.pdf
    • https://cdn.shopify.com/s/files/1/0437/4469/0337/files/81533748656.pdf
    • https://cdn.shopify.com/s/files/1/0432/0247/8237/files/jenulumurunuladevofi.pdf
    • https://cdn.shopify.com/s/files/1/0437/0133/8266/files/mapa_turistico_la_paz_bolivia.pdf
    • https://cdn.shopify.com/s/files/1/0428/4920/6439/files/approaches_of_job_design.pdf
    • https://cdn.shopify.com/s/files/1/0432/6123/1262/files/1487920975.pdf
    • https://cdn.shopify.com/s/files/1/0434/1478/2119/files/26608825356.pdf
    • https://cdn.shopify.com/s/files/1/0437/6110/7096/files/36842099607.pdf
    • https://cdn.shopify.com/s/files/1/0436/9930/6650/files/singular_and_plural_nouns_worksheets_for_adults.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000061c9.bin
e9c5c022bbbc7f5930fbde60c396ea4850cdeb012e9a980bebcbff8b4d99caba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61C9 5244 bytes
font_01_sfnt_off00007395.bin
68b5e82d4c38ce925226f18ca7a9ea2ff962ad1891aeff94df9830317ac04144		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7395 11704 bytes
font_02_sfnt_off00009808.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9808 4324 bytes

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