Malicious PDF — malware analysis report

Static analysis result for SHA-256 d01545051b04a604…

MALICIOUS

PDF

50.1 KB Created: 2020-08-15 08:07:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f84dfe8ca399315c3c5fb894c112108 SHA-1: 20bd2f24d40a69d1b4c653384a96f9c5855224de SHA-256: d01545051b04a6042281a5f7628c5df669f24a56587e7e4706da304c6a5e9f10
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, many pointing to Shopify-hosted PDFs, which is characteristic of a link farm designed to improve search engine ranking for specific keywords. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/wb?keyword=transactional%20analysis%20games%20pdf'. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing.

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/wb?keyword=transactional%20analysis%20games%20pdf
    • http://files.sonrisequarterhorse.com/uploads/1/3/1/1/131164039/nalubo-xozupa.pdf
    • http://gizot.lightfastdesign.com/uploads/1/3/2/8/132815732/cbaf84e92d8032.pdf
    • http://files.michellemmonagin.com/uploads/1/3/1/4/131406606/dc576fc090f81.pdf
    • http://files.johndollar.org/uploads/1/3/0/7/130740193/wagasosamewexu_tinixore.pdf
    • http://files.afteredengallery.com/uploads/1/3/1/4/131453919/titina-biropiru-turonu.pdf
    • https://cdn.shopify.com/s/files/1/0437/2591/4262/files/logical_connectors_quiz.pdf
    • https://cdn.shopify.com/s/files/1/0437/2329/2822/files/89938111422.pdf
    • https://cdn.shopify.com/s/files/1/0441/1251/1128/files/40502499912.pdf
    • https://cdn.shopify.com/s/files/1/0431/5778/2690/files/dudapipoxamiromodave.pdf
    • https://cdn.shopify.com/s/files/1/0434/2228/5976/files/mogujilivafobisopes.pdf
    • https://cdn.shopify.com/s/files/1/0428/9291/8937/files/zununavolune.pdf
    • https://cdn.shopify.com/s/files/1/0431/5761/8850/files/dawibakeropezut.pdf
    • https://cdn.shopify.com/s/files/1/0438/0835/8561/files/rogonavatofa.pdf
    • https://cdn.shopify.com/s/files/1/0429/2640/7833/files/beles.pdf
    • https://cdn.shopify.com/s/files/1/0433/3443/4969/files/donukelowuniwo.pdf
    • https://cdn.shopify.com/s/files/1/0434/7920/3992/files/kekuwik.pdf
    • https://cdn.shopify.com/s/files/1/0429/6808/8742/files/21604087538.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_off000084d0.bin
20009ee1a1a71689745e2008c7225a08443e34cbdeec203767dc96c89d6c99f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84D0 5524 bytes
font_01_sfnt_off00009780.bin
f368b335e424e9c44e621a8af219093ac15b0a27423b40ea7e778688b9b14048		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9780 10408 bytes

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