Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3fafe174b69c19a…

MALICIOUS

PDF

61.0 KB Created: 2020-08-05 17:58:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 05c69ea37580327ee0c1c915cc985c9d SHA-1: 2a62deae738e471bc3dd96f3ccaccce04b71aad2 SHA-256: d3fafe174b69c19a4b9677c7e4d439a1e72976314b9826b0f36202a90fcf0130
154 Risk Score

Malware Insights

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

The PDF file was identified as malicious by an ML classifier and contains a large number of external links, many of which point to PDF files hosted on Shopify. One of these links, https://ttraff.cc/wb?keyword=b&g%20circuit%20setter%20pdf, is a known malicious redirector. This suggests a link farm or SEO poisoning attack designed to lure users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=b&g%20circuit%20setter%20pdf In PDF document text
    • http://files.coastandclearing.com/uploads/1/3/1/4/131453276/zibopisafijowu.pdfIn PDF document text
    • http://files.rtcranch.com/uploads/1/3/0/7/130740375/simoxusawu.pdfIn PDF document text
    • http://files.integritycincinnati.com/uploads/1/3/1/4/131453499/dekoxuwov.pdfIn PDF document text
    • http://files.christatomlinson.com/uploads/1/3/1/8/131871644/kukopeserud.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9803/8679/files/zufodusavezibedu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4748/3552/files/dizigigagedununube.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3808/0166/files/wujupowibakafibonipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4982/6969/files/dozoxepakum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2566/7995/files/gerupobiwaxupufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8212/0357/files/35413730995.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2873/2314/files/sajuta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5150/7094/files/43453999847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0224/6814/files/rda_exam_2016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6797/4556/files/88420304274.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8921/6167/files/vogejuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5698/0377/files/jevuteparazoserajovopes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9597/2256/files/official_zaytoven_drum_kit_2016.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
    • http://scripts.sil.org/OFLIn PDF document text
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009f56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F56 4204 bytes
SHA-256: d50822623e89c8115b0f5ed2ce7f5a9ddc83896b89d44c93b455b6155f7936d2
font_01_sfnt_off0000ada4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADA4 6148 bytes
SHA-256: 488ffee5e9c33bcc1f3f00aec749f35977d0cdd209ffadaee35194d66ecc177d
font_02_sfnt_off0000bd84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD84 12752 bytes
SHA-256: 5c11bd6d273c71ead9d2300f26d3e09134d5575a5c4f16d19df6b62d17f6c745