Malicious PDF — malware analysis report

Static analysis result for SHA-256 541884e04b8bfbee…

MALICIOUS

PDF

45.6 KB Created: 2020-08-30 18:04:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5b0c90b7c624a89dc38cec7f5da6ffb7 SHA-1: f245cc193971da3222b8adda1134d974733970b0 SHA-256: 541884e04b8bfbeeaf1dd1cbdec40441d1e4a72da34ed46f13a021fd136a2af9
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, many of which point to external PDF files, suggesting a link farm or SEO poisoning tactic. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/wix?keyword=god%2527+s+providence+definition'. The document body, though heavily obfuscated, contains the same URL and a reference to 'God's providence definition', indicating a lure to a malicious site disguised as informational content.

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/wix?keyword=god%2527+s+providence+definition
    • https://cdn.shopify.com/s/files/1/0432/9180/3801/files/entrepreneurship_development_notes.pdf
    • https://cdn.shopify.com/s/files/1/0448/7122/1410/files/circuit_switching_and_packet_switching.pdf
    • https://cdn.shopify.com/s/files/1/0434/4119/3110/files/vulonabupomozekusazuzal.pdf
    • https://cdn.shopify.com/s/files/1/0428/5261/4311/files/algebra_equations_worksheets_year_8.pdf
    • https://static.usrfiles.com/ugd/b8c837_15391b1509634ac7be1bed88aeae6e23.pdf
    • https://static.usrfiles.com/ugd/b8bbd7_c1695cd5219f4c288a447d8437444d24.pdf
    • https://static.usrfiles.com/ugd/0adedf_b60d8242dd2445598842fec3ff97ba1b.pdf
    • https://static.usrfiles.com/ugd/9757e7_eb5a1d91da164c36bf11f5d6a734c33a.pdf
    • https://cdn.shopify.com/s/files/1/0435/5234/2184/files/dopupakenezavawitapew.pdf
    • https://cdn.shopify.com/s/files/1/0445/3348/1636/files/paleo_diet_plan_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/5312/9640/files/wild_one_jerry_lee_lewis_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0430/7818/9205/files/92608204171.pdf
    • https://cdn.shopify.com/s/files/1/0430/7877/9029/files/sasuwumiz.pdf
    • https://static.usrfiles.com/ugd/49be48_26e5de99645e47bbae87c2615345e1d3.pdf
    • https://static.usrfiles.com/ugd/b8c837_df6601f92c884f0786c7ba4c1e132fd1.pdf
    • https://static.usrfiles.com/ugd/b8c837_b03a392f0c864f339b26f3c3b6d0a86f.pdf
    • https://static.usrfiles.com/ugd/b8c837_558be57c9b444ec29405b26a0a826d00.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_off000072bb.bin
16e168551700300dfd634fd7b49489290fe2cbeb8803b4aef58fe6eacafb85a0
pdf-font-stream PDF embedded font (sfnt) at offset 0x72BB 5032 bytes
font_01_sfnt_off00008409.bin
8b44da03c098ca38df2fb216438add3b0a0ff20bb7982328421684ae90ba82af
pdf-font-stream PDF embedded font (sfnt) at offset 0x8409 10972 bytes