Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d0a66bef00a8a0e…

MALICIOUS

PDF

52.7 KB Created: 2020-08-07 13:02:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 808a399ff53b1cc6ffe2483664edc844 SHA-1: cc92a5e2bbe4896df44b5f532e906dcd33f743df SHA-256: 3d0a66bef00a8a0ea0de0058f8c6f73629bdfc3de4e82b02907cf6e3057695c5
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 a link farm hosted on cdn.shopify.com, designed to appear as legitimate PDF documents. However, one of the primary links redirects to a known malicious redirector infrastructure at 'ttraff.cc'. This indicates a phishing or redirection attack aimed at leading the user to malicious content. No scripts were extracted, and the document body was heavily obfuscated, making it difficult to determine the exact final payload.

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/wb?keyword=spaghetti%20diagramm%20pdf
    • http://fikexil.imadsz.org/uploads/1/3/0/8/130813612/samad-vezajutib-luzilefixamag.pdf
    • http://files.gatelyscience.com/uploads/1/3/0/7/130740213/wikuxojuwoserij-pupolufawesi-fofonajabetik.pdf
    • http://files.woodside2-3-4hoa.org/uploads/1/3/0/9/130969297/3904419.pdf
    • https://cdn.shopify.com/s/files/1/0435/3395/9327/files/auditoria_financeira_teoria_prtica.pdf
    • https://cdn.shopify.com/s/files/1/0429/3564/8409/files/93631084427.pdf
    • https://cdn.shopify.com/s/files/1/0430/7111/1330/files/9394802900.pdf
    • https://cdn.shopify.com/s/files/1/0436/3301/6982/files/nomajoxikat.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/70354855800.pdf
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/leromorivalo.pdf
    • https://cdn.shopify.com/s/files/1/0434/0583/6438/files/66328291148.pdf
    • https://cdn.shopify.com/s/files/1/0439/9860/9566/files/81122337690.pdf
    • https://cdn.shopify.com/s/files/1/0432/6942/3269/files/42231993930.pdf
    • https://cdn.shopify.com/s/files/1/0433/3276/3801/files/twister_spinner_printable.pdf
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/64328723905.pdf
    • https://cdn.shopify.com/s/files/1/0451/1626/0517/files/honda_eu3000is_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0440/0313/1542/files/42500625907.pdf
    • https://cdn.shopify.com/s/files/1/0433/2892/9947/files/tunigololenanedajuxewu.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008115.bin
a96af1aa0e82b79391ca55c761c23f666b3fb96aeea37bd5cf9a96574de584e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x8115 4920 bytes
font_01_sfnt_off000091d1.bin
787e28ef654fada3216d68002ff39de3c967c16752c359e62a6cf327641933ce
pdf-font-stream PDF embedded font (sfnt) at offset 0x91D1 11124 bytes
font_02_sfnt_off0000b62a.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0xB62A 4324 bytes