Malicious PDF — malware analysis report

Static analysis result for SHA-256 20d184587413b5c7…

MALICIOUS

PDF

43.6 KB Created: 2020-08-20 02:04:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 695add82372043658590609a71e60991 SHA-1: c5e422e5e3140920313982f5ec0dfacf42c7914e SHA-256: 20d184587413b5c7bfba614e2a625e9b7f2c2a363d8b65670a11b9541ce73461
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, disguised as a 'Honda motorcycle uk certificate of conformity'. This indicates a phishing or social engineering attempt. The PDF also contains a link farm pointing to various PDFs hosted on Shopify, one of which is also identified as a potential IOC. The document body is heavily obfuscated but contains the redirector URL and a Shopify URL. 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.ru/pify?keyword=honda+motorcycle+uk+certificate+of+conformity
    • http://mifejotu.trinitariancongregationalchurch.org/uploads/1/3/1/4/131452938/62e0481f29.pdf
    • http://files.ryanmarkmorgan.com/uploads/1/3/2/3/132303102/xezepevosetewi.pdf
    • http://files.chicagotrainingcenter.org/uploads/1/3/0/8/130813466/8ba01335891f.pdf
    • https://cdn.shopify.com/s/files/1/0433/4164/3928/files/7821988635.pdf
    • https://cdn.shopify.com/s/files/1/0438/5990/2624/files/currency_and_capital_of_different_countries.pdf
    • https://cdn.shopify.com/s/files/1/0432/9222/9787/files/rajinekeli.pdf
    • https://cdn.shopify.com/s/files/1/0429/2454/0071/files/george_eliot_school_nuneaton_ofsted_report.pdf
    • https://cdn.shopify.com/s/files/1/0437/1356/0727/files/ikea_australia_catalogue.pdf
    • https://cdn.shopify.com/s/files/1/0434/4374/9029/files/antimalarial_drugs.pdf
    • https://cdn.shopify.com/s/files/1/0431/7046/3912/files/zezaganik.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/29529942485.pdf
    • https://cdn.shopify.com/s/files/1/0429/8860/1503/files/46146627520.pdf
    • https://cdn.shopify.com/s/files/1/0432/7201/1931/files/97916080855.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_off00006b9b.bin
92eeb84454c466a7ae8dfacd0634fcd7af811e897d93c8f59c21c548000f4804		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B9B 5116 bytes
font_01_sfnt_off00007cf3.bin
a2a1954c92afad70e9e71f56d7652657f118c941705c68db7fb9f4d29166b9b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CF3 10788 bytes

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