Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f673922addeb74…

MALICIOUS

PDF

57.5 KB Created: 2020-10-24 11:26:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-01
MD5: ce18597f742e48125d4f13d014dfe0bf SHA-1: 4d77412ecdcc274c3e6d0f4490904a599b050160 SHA-256: a4f673922addeb74cbf33a52f756661484118d12c07910af5ada4b4b31237740
154 Risk Score

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://gettraff.ru/wb?keyword=s&w%20m&p%2015-223%20manual In PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/1158663.pdfIn PDF document text
    • https://fanawilixu.weebly.com/uploads/1/3/1/4/131408209/3903142.pdfIn PDF document text
    • https://sizukejagu.weebly.com/uploads/1/3/2/6/132681884/6589686.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380209/normal_5f8cee9fe3ec3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383165/normal_5f910db9cd71e.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00008c31.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00008c31.bin)
    • https://cdn.shopify.com/s/files/1/0499/3548/3038/files/wuzaroxufipikem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/5701/5701/files/77787284084.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6153/3089/files/kepagogavonifukuvorakaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2735/8115/files/40909243272.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/7203/1382/files/jiwufukoposibakiwibonod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/8650/1806/files/44968240382.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/2064/6048/files/buzovuwewusevokad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0937c0c6-1308-4260-a7d7-4ee5f6ba9b34/18311098072.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a16bf863-e566-42c2-89ec-eef3b9c163ba/51321088014.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1bc92e59-0514-4c1e-a1ef-3a8ad41dfb5d/82046506801.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7aa7b1ce-71bd-4a02-bb8c-64f2e8641e7b/28136608150.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3950aada-13f2-4718-87b5-dad1e6feec8f/joxelowitid.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 extracted file (font_00_sfnt_off00008c31.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008c31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C31 4260 bytes
SHA-256: 80599b29a58adecd43d6230ba1f42120a154b459c63d9fef9f6671b623b7014e
font_01_sfnt_off00009ab5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AB5 30820 bytes
SHA-256: bfc1528713ce2fb7efaf4042df49d14adbaa4b747dbaf47db45456bc87fb2670