Malicious PDF — malware analysis report

Static analysis result for SHA-256 860bdff239f680da…

MALICIOUS

PDF

40.2 KB Created: 2020-08-28 06:21:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47d1f1fc8729a8a7508e9dff8a0e9b35 SHA-1: c1d3b5b7543187ac10133b2fcb79df82d85e193f SHA-256: 860bdff239f680da8d0a75171ce60a75f10d3512b690f65a419830dbcd91ec96
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. This redirector is likely used to obscure the final malicious destination. The document body, though heavily corrupted, contains text fragments that appear to be related to the lure URL, suggesting a social engineering attempt to trick users into clicking the malicious link.

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=vault+meat+fallout+4+mod
    • http://zutejuti.theridingtherapycenter.org/uploads/1/3/0/9/130969280/719d00f.pdf
    • http://files.greencoreelectric.com/uploads/1/3/2/7/132740633/f8c92e956200842.pdf
    • http://files.christineprietoarted.com/uploads/1/3/1/6/131606798/zuroxexotasid-lubofile-roberati.pdf
    • http://sudoritap.weightknowmore.com/uploads/1/3/0/8/130874524/gukegipupegumaga.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zaduvezumutup.pdf
    • https://cdn.shopify.com/s/files/1/0428/8158/1209/files/share_certificate_template.pdf
    • https://cdn.shopify.com/s/files/1/0432/2417/0664/files/jomosupekegaxi.pdf
    • https://cdn.shopify.com/s/files/1/0450/1009/2182/files/72969598173.pdf
    • https://cdn.shopify.com/s/files/1/0427/7311/9143/files/fuvajopo.pdf
    • https://cdn.shopify.com/s/files/1/0439/0807/1576/files/desktop_support_engineer_interview_questions.pdf
    • https://cdn.shopify.com/s/files/1/0459/2081/3205/files/54463400302.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gofifarigomikidapowokov.pdf
    • https://cdn.shopify.com/s/files/1/0432/5448/1058/files/mcgraw_hill_10_act_practice_tests.pdf
    • https://cdn.shopify.com/s/files/1/0433/0792/5654/files/40006964266.pdf
    • https://cdn.shopify.com/s/files/1/0436/2698/7680/files/28385264813.pdf
    • https://cdn.shopify.com/s/files/1/0437/5825/6286/files/56928561136.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_off0000620f.bin
969e042c667a29e207c53820e31b34194aa124091ba75bfd48af0e4a219e1867		 pdf-font-stream PDF embedded font (sfnt) at offset 0x620F 4832 bytes
font_01_sfnt_off0000727e.bin
e03371b9d763814a65e87bcf9c8aad124cfc9500fbb84f874acef4d8754c0fe9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x727E 9832 bytes

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