Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9509a60cd0f3ac5…

MALICIOUS

PDF

69.9 KB Created: 2020-08-13 19:51:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 75c584686d80411a82d2f2e8bbdb238b SHA-1: b0a2087d2bf98ecb72914bfbcdb6ec6dc28eec2b SHA-256: d9509a60cd0f3ac5460e8d72f16d553b8e9a4c3b1a95c9407e371eaf098d4078
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains a URL that points to a known malicious redirector. This suggests the primary purpose is to redirect the user to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted, limiting the analysis of specific payloads.

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/wb?keyword=integrated%20disease%20management%20pdf In PDF document text
    • http://files.cienaraenelson.com/uploads/1/3/0/7/130739786/3285604.pdfIn PDF document text
    • http://punune.leilasabet.com/uploads/1/3/0/9/130969060/xunapivojilirolakog.pdfIn PDF document text
    • http://files.museumofstreetculture.org/uploads/1/3/2/6/132695832/giliwo-lazajobokerebi-monuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5456/3477/files/piwufajoropafokerakud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3600/0931/files/68932801279.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3957/2643/files/zobaxaju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0372/4455/files/zogetupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5531/7149/files/topozabixafipilotisenutup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8360/3873/files/63755765373.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0659/1127/files/gakakivowofosova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9825/7048/files/25040881336.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7848/3096/files/arris_tg862_manual_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5670/8254/files/wekexumug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3019/2039/files/31180165891.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d262.bin
3f2ede2025977764af8e9e134bfdee2f4b6fc527ac63224bccd6589b74a9ce44
pdf-font-stream PDF embedded font (sfnt) at offset 0xD262 5268 bytes
font_01_sfnt_off0000e436.bin
cd7d51f868c7bbd9672f194eaed76113f99a73b97a608148814329d42c025422
pdf-font-stream PDF embedded font (sfnt) at offset 0xE436 11364 bytes