Malicious PDF — malware analysis report

Static analysis result for SHA-256 aea1f3b69c6925f2…

MALICIOUS

PDF

42.2 KB Created: 2020-08-23 10:23:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c382ad2726c872d6cbdb8d005f4a3e4 SHA-1: 9ddff591ae126e458b209721f8621a90ba096ded SHA-256: aea1f3b69c6925f2285546d84d3bde21ce69a47f69ffa4b7c1637f67caa079ef
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links, 'https://ttraff.ru/pify?keyword=template+digital+business+model+canvas', is identified as a malicious redirector. This suggests the document is designed to trick users into visiting malicious websites under the guise of providing business templates.

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=template+digital+business+model+canvas
    • http://fakopopum.diabeticeyejournal.org/uploads/1/3/0/7/130776167/fudumegosi.pdf
    • http://files.laurenfalksoprano.com/uploads/1/3/1/3/131383864/5583950.pdf
    • http://zodus.sneddenhouseconcerts.com/uploads/1/3/1/8/131857054/730479.pdf
    • https://cdn.shopify.com/s/files/1/0437/3646/5559/files/simple_cash_book_excel_template.pdf
    • https://cdn.shopify.com/s/files/1/0428/1283/3959/files/81899832012.pdf
    • https://cdn.shopify.com/s/files/1/0433/4521/5656/files/hermle_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0459/2451/5989/files/albany_medical_college_interview_format.pdf
    • https://cdn.shopify.com/s/files/1/0429/0668/1497/files/rureponiderajagome.pdf
    • https://cdn.shopify.com/s/files/1/0428/9983/2995/files/acls_test_questions_2020.pdf
    • https://cdn.shopify.com/s/files/1/0436/8728/0790/files/siduwiwadubaresesibejo.pdf
    • https://cdn.shopify.com/s/files/1/0431/5843/8056/files/risejanon.pdf
    • https://cdn.shopify.com/s/files/1/0433/4478/9653/files/clinical_anatomy_by_systems.pdf
    • https://cdn.shopify.com/s/files/1/0428/2938/1791/files/xekevipaso.pdf
    • https://cdn.shopify.com/s/files/1/0431/8222/7617/files/91660855435.pdf
    • https://cdn.shopify.com/s/files/1/0431/8475/0747/files/xujujakepotubene.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_off00006484.bin
73764904e179b5db88e160a1e38a8e60df151c2922cbc82ea31a89bad73b472e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6484 5448 bytes
font_01_sfnt_off000076f3.bin
faf2540c311b3dec4586b8311043ab0b38b432bf83ffb898e105e99efbf0e71d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76F3 10836 bytes

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