Malicious PDF — malware analysis report

Static analysis result for SHA-256 2511dd7aa36a026f…

MALICIOUS

PDF

38.4 KB Created: 2020-08-31 12:16:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5c74f70b89fabfdf3fb7ba3c410f2ef3 SHA-1: fc34b7984f75b59af8505ee9ab9654f26091b248 SHA-256: 2511dd7aa36a026f2ff6446bc3c816978d58aeacd7caede6b38f14a3e9bbec75
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, pointing to a URL that appears to be part of a scam or phishing attempt. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of embedded links, many of which are hosted on cdn.shopify.com, suggesting an attempt to manipulate search engine results or distribute malicious content. The document body, though heavily obfuscated, contains the same malicious URL and references to game cheats, reinforcing the lure.

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.com/wix?keyword=family+guy+the+quest+for+stuff+cheats+for+unlimited+clams
    • https://cdn.shopify.com/s/files/1/0435/1839/4523/files/60082097382.pdf
    • https://cdn.shopify.com/s/files/1/0435/9382/6467/files/glazing_sheet_toolstation.pdf
    • https://cdn.shopify.com/s/files/1/0431/2324/5216/files/accouchement__domicile_en_afrique.pdf
    • https://cdn.shopify.com/s/files/1/0463/6157/5579/files/empirical_approach.pdf
    • https://cdn.shopify.com/s/files/1/0440/7584/3736/files/bubir.pdf
    • https://cdn.shopify.com/s/files/1/0427/4126/8647/files/strategic_partnership_framework_template.pdf
    • https://cdn.shopify.com/s/files/1/0437/6179/5230/files/14342989328.pdf
    • https://static.usrfiles.com/ugd/b8c837_22753cedaa424edbbe5fa513a506f6e2.pdf
    • https://static.usrfiles.com/ugd/9219f8_4093a0ef29fd46df8db52a16de80f6f4.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_off0000569b.bin
68ce43cc67497694dfd3d84068172f6ebaa6139ccbc591b324e4097f4862f878
pdf-font-stream PDF embedded font (sfnt) at offset 0x569B 5620 bytes
font_01_sfnt_off00006991.bin
51afa09cbefeb0949745a03caaaefc6867b0706163356f7d96e2157c506883db
pdf-font-stream PDF embedded font (sfnt) at offset 0x6991 10324 bytes