Malicious PDF — malware analysis report

Static analysis result for SHA-256 1eea80d6554f58e5…

MALICIOUS

PDF

42.2 KB Created: 2020-09-18 00:24:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 87f5740bae381527c4806b664a4fc606 SHA-1: eba0165d281edb461b5e1fe55990821fc6c6e5c7 SHA-256: 1eea80d6554f58e542bd07d7b06aa4b44e62e3eb17abd893f54a144615a678c4
120 Risk Score

Malware Insights

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

The PDF file exhibits malicious behavior through a high density of embedded links, identified as a link farm. One critical heuristic indicates a link to known malicious redirector infrastructure, specifically 'https://ttraff.link/pify?keyword=skyrim+forsworn+conspiracy+eltrys+dead'. The presence of numerous links, many pointing to Shopify domains, suggests an attempt to manipulate search engine results or distribute malicious content through a large network of seemingly benign-looking documents. No scripts were extracted from this sample.

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.link/pify?keyword=skyrim+forsworn+conspiracy+eltrys+dead
    • http://files.atdesignpartners.com/uploads/1/3/0/8/130813988/wigaputu.pdf
    • http://torevujo.vanessanbrown.org/uploads/1/3/0/7/130775934/1145313.pdf
    • http://jiwuz.halifaxrealestateblog.net/uploads/1/3/0/7/130739069/6890906.pdf
    • http://kalez.fullspectrumdoulacare.com/uploads/1/3/0/7/130739344/mojaxafutozetovase.pdf
    • http://files.discoverychilddevelopmentcenter.com/uploads/1/3/1/1/131164097/2600839.pdf
    • http://files.theblessedlifeonline.com/uploads/1/3/0/7/130775867/ec77536fc.pdf
    • https://cdn.shopify.com/s/files/1/0433/8712/5910/files/pokixapirofetijutola.pdf
    • https://cdn.shopify.com/s/files/1/0435/1482/2808/files/db_realty_annual_report_2016.pdf
    • https://cdn.shopify.com/s/files/1/0457/0261/1100/files/pdf_expert_annotation_tools.pdf
    • https://6504320e-e4ee-4219-8f41-1b6227a4b550.filesusr.com/ugd/2b25b5_3d3e8527e7a043759ab4beb869cfdc66.pdf?index=true
    • https://81d6826d-9d4d-46dd-8479-ecf0bb407376.filesusr.com/ugd/4542d9_b0ef1699de354daab85de93faf89a6c3.pdf?index=true
    • https://8bd76b7e-2f19-4780-89fc-6a11c2d29b2a.filesusr.com/ugd/668a47_72e484d30b1c4e03923caa26689a4322.pdf?index=true
    • 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_off00006372.bin
e2753d23b0d3d3f4192ce788bd91aea228fdc8b7bba665f85e9db04163cd456a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6372 5664 bytes
font_01_sfnt_off000076c8.bin
610e3a36531582adee00bde4bda5412bba98d0b3367c0334d4e5ebfbd6356661		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76C8 10956 bytes

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