Malicious PDF — malware analysis report

Static analysis result for SHA-256 c12c17b9461f0cf8…

MALICIOUS

PDF

40.8 KB Created: 2020-08-19 21:22:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a7fbe5b04df8165bd16fb8dac05898b SHA-1: e621f6edd9ce551fec30b71b652c8a4163791e37 SHA-256: c12c17b9461f0cf8f9a29ceec19332b80c9ac3f8a6695cdbab613175cf70bcf3
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains text related to 'Albion online solo dungeon guide' and the malicious URL, suggesting a lure to trick users into visiting the redirector. No scripts were extracted, and the primary malicious activity observed is the redirection to a potentially harmful site.

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=albion+online+solo+dungeon+guide
    • http://files.pchelpnsupport.com/uploads/1/3/2/6/132695200/dolos_kanap_nalazak.pdf
    • https://cdn.shopify.com/s/files/1/0428/5222/1091/files/kasuwawunukofojazubiv.pdf
    • https://cdn.shopify.com/s/files/1/0437/3705/5393/files/32049395421.pdf
    • https://cdn.shopify.com/s/files/1/0434/8428/3033/files/niguj.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/58863311498.pdf
    • https://cdn.shopify.com/s/files/1/0430/8146/6005/files/zerepajole.pdf
    • https://cdn.shopify.com/s/files/1/0435/5666/7541/files/food_adulteration_investigatory_project_class_12.pdf
    • https://cdn.shopify.com/s/files/1/0433/6346/7414/files/silifejajes.pdf
    • https://cdn.shopify.com/s/files/1/0434/7602/5497/files/act_practice_test_reddit.pdf
    • https://cdn.shopify.com/s/files/1/0431/6689/2186/files/ginujuzegipates.pdf
    • https://cdn.shopify.com/s/files/1/0431/3815/4653/files/jerry_kuhnhausen_books.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_off0000636f.bin
cabd940583fdd12e5c695c7851a051715a6a869aeff8efcba478675027ba34be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x636F 4816 bytes
font_01_sfnt_off000073d9.bin
82f01d524f14449df87966b873dac6a922dd0faa8ba231b3d3765d9e128c4c4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73D9 10224 bytes

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