Malicious PDF — malware analysis report

Static analysis result for SHA-256 1da9b5b1c8c4d6ba…

MALICIOUS

PDF

47.8 KB Created: 2020-08-19 08:03:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 74f6a719d128e65eed91401f4121fd9f SHA-1: e429d8600056924a5a7ec96ab559af435c2aaf79 SHA-256: 1da9b5b1c8c4d6ba4b020bb24a30a63c2726901321a69fac59f0882b266e27b5
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, disguised with text suggesting it contains 'Jeopardy questions and answers for seniors'. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the malicious nature of the target URL. Additionally, the PDF_SEO_LINK_FARM heuristic indicates the document is part of a larger scheme to generate traffic, with numerous links pointing to external resources, including a prominent link to a Shopify domain. 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.cc/pify?keyword=jeopardy+questions+and+answers+for+seniors In PDF document text
    • http://files.tangonegrofilm.com/uploads/1/3/0/7/130738875/rolubotax-ratatedur-jebiberolusov.pdfIn PDF document text
    • http://files.kathymorrowstudio.com/uploads/1/3/0/7/130739362/1445330.pdfIn PDF document text
    • http://files.waxybeans.com/uploads/1/3/1/0/131070846/2843e0a27372.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4112/8601/files/62791115831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3547/4590/files/kurodurezatumes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6265/7177/files/putumedotobizawilusaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4012/6614/files/demim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6835/0873/files/98165818215.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3562/3578/files/64630848071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3703/8491/files/forsaken_campaign_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5502/8126/files/meaning_of_sustainable_development_goals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7560/9510/files/poxopajapalog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0043/0746/files/xowizujopi.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
    • https://cdn.shopify.com/s/files/1/0429/6In PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006fef.bin
7a8214dd6c2b0befb9651e8abd9a79c74a54cfd7178d51fbe1bed86ccf2bfa28
pdf-font-stream PDF embedded font (sfnt) at offset 0x6FEF 5196 bytes
font_01_sfnt_off000081bd.bin
86b1129f05dd350a24217f7cea093e025c61d570beef0b988074cdae953583b4
pdf-font-stream PDF embedded font (sfnt) at offset 0x81BD 9932 bytes
font_02_sfnt_off0000a3c1.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230
pdf-font-stream PDF embedded font (sfnt) at offset 0xA3C1 4324 bytes