Malicious PDF — malware analysis report

Static analysis result for SHA-256 32f5d2dd5caac131…

MALICIOUS

PDF

58.4 KB Created: 2020-08-20 00:28:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 457e5eb67a82d574475dce1b788796b5 SHA-1: 8c954c81e8765c097896cf413eb16f2c97e3048c SHA-256: 32f5d2dd5caac1314e986a4231844841f3ab32fdfb8f607001ec1e913001c040
120 Risk Score

Malware Insights

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

The PDF contains a link farm, with many links pointing to Shopify domains, likely to obscure the final malicious destination. The primary malicious URL identified is https://ttraff.ru/pify?keyword=killing+floor+2+demolitionist+guide+2018, which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other Shopify links, suggesting a lure to disguise malicious redirection.

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/pify?keyword=killing+floor+2+demolitionist+guide+2018
    • http://laves.figueroasclassroom.com/uploads/1/3/1/6/131637562/wetizoxizobosudefan.pdf
    • http://files.thirstquencherneckware.com/uploads/1/3/1/8/131871859/6824219.pdf
    • http://fofomiw.brattleborocjc.org/uploads/1/3/1/4/131454521/potewi.pdf
    • https://cdn.shopify.com/s/files/1/0440/4533/6726/files/rafupapemas.pdf
    • https://cdn.shopify.com/s/files/1/0429/1880/5657/files/hunter_xc_manual.pdf
    • https://cdn.shopify.com/s/files/1/0436/9973/2633/files/4147776772.pdf
    • https://cdn.shopify.com/s/files/1/0437/9413/7249/files/63496168624.pdf
    • https://cdn.shopify.com/s/files/1/0429/2742/3651/files/52985956666.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sigejorivuzogekos.pdf
    • https://cdn.shopify.com/s/files/1/0429/5242/5631/files/27760294577.pdf
    • https://cdn.shopify.com/s/files/1/0429/7680/5023/files/59687371483.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lomapatigusobotatijizu.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_off0000a699.bin
232a73bb35b9fa9417425a606ffb8bf7c926f10651fdf7673bfbfc6d6ea52475
pdf-font-stream PDF embedded font (sfnt) at offset 0xA699 5504 bytes
font_01_sfnt_off0000b94a.bin
e82fd8108c47283db23f50bbb7bfd969bcd4dae2577aa5ee4e67f54906b52d3f
pdf-font-stream PDF embedded font (sfnt) at offset 0xB94A 10336 bytes