Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb02950143691a5f…

MALICIOUS

PDF

48.4 KB Created: 2020-08-23 13:32:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f8273952fe6e89747f7a46b8356cd57 SHA-1: ef2ab90110aa9b3e104bd9b03ae1a0aa9afbac15 SHA-256: fb02950143691a5ff538f62bef54fd853469ec7553ae6c28f9186138c1a60c76
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, a technique often used to create link farms for SEO manipulation or to obscure malicious destinations. One critical heuristic identified a link to a known malicious redirector service at https://ttraff.com/pify. The document body, though heavily obfuscated, contains this URL and other links pointing to Shopify-hosted PDFs, suggesting a lure to download further content or navigate to malicious sites. 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.com/pify?keyword=create+crystal+report+asp.+net+c%2523
    • http://files.hordlevoluntarycare.org/uploads/1/3/0/8/130874413/zoladamalija.pdf
    • https://cdn.shopify.com/s/files/1/0434/8028/5348/files/sahih_bukhari_online.pdf
    • https://cdn.shopify.com/s/files/1/0463/2697/2571/files/30256310511.pdf
    • https://cdn.shopify.com/s/files/1/0446/0825/8211/files/la_campanella_paganini.pdf
    • https://cdn.shopify.com/s/files/1/0437/0818/6792/files/xuleloboselesuxidodadi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9832/5663/files/86029416170.pdf
    • https://cdn.shopify.com/s/files/1/0435/2029/5064/files/punojonowafof.pdf
    • https://cdn.shopify.com/s/files/1/0433/3459/8809/files/fusionner_2_windows_10.pdf
    • https://cdn.shopify.com/s/files/1/0433/3407/4523/files/69565814886.pdf
    • https://cdn.shopify.com/s/files/1/0438/5118/6336/files/compliance_risk_management_framework.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_off000080f7.bin
f1043c81977325bda5edb1d17bd48b8e53a8644834c4cc16ed2bd20c185a8652		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80F7 4964 bytes
font_01_sfnt_off000091ef.bin
b16c0cade1e3814c8266ec1c3168d8658bf413459204ed96da68060e05db9a1c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x91EF 10352 bytes

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