Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d3a07532845927…

MALICIOUS

PDF

36.7 KB Created: 2020-10-16 10:24:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-28
MD5: 8384add6b275c29db47995868d33c06b SHA-1: 8494586068de9ef0fad15774dce8a8f7c1462b7f SHA-256: c5d3a075328459271e36a09d8402ca61ad7c9154f6db65383a164c3a70a753e8
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://cctraff.ru/123?keyword=government+tender+document+pdf In PDF document text
    • https://jewajufigojoxi.weebly.com/uploads/1/3/1/4/131438211/1564165.pdfIn PDF document text
    • https://wivupenoremew.weebly.com/uploads/1/3/0/7/130775018/loxesosetifited.pdfIn PDF document text
    • https://xawuwotogot.weebly.com/uploads/1/3/2/6/132695388/a7516413002985d.pdfIn PDF document text
    • https://zoveponezewuda.weebly.com/uploads/1/3/0/7/130738822/c2981cbe51e8ae0.pdfIn PDF document text
    • https://ranerenonosojib.weebly.com/uploads/1/3/1/4/131483420/4482710.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370074/normal_5f8862fc5f2a9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365598/normal_5f86fec6f36f6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366036/normal_5f871a8517be3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365613/normal_5f871dc0a83cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369664/normal_5f887cb223221.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366041/normal_5f86fb73d4862.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365600/normal_5f87c7d831c4f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368984/normal_5f89467882c68.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370309/normal_5f8932f1c3dd6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365551/normal_5f88ad10ce103.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366365/normal_5f8946bad0058.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366949/normal_5f8732503f8f0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370530/normal_5f893be29928f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373004/normal_5f89058fd6782.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/efba35ed-f8f7-4268-a2e2-eeab5c2b75ca/xelosokojomizajikoved.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1613d18-8bf4-4f3e-955a-5c5a6a8ae9f0/34042170812.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5c65642e-981d-417c-a1e2-40dbd477bc19/fetaku.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11dced8e-aec5-4f2a-abdf-6b0d87b016b6/gajepu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a88912b8-33af-40df-8f89-1196737be939/96139178929.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/8643/9089/files/26646650550.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2454/0071/files/9178490403.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0493/0646/8511/files/where_was_joe_kidd_filmed.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005343.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5343 4972 bytes
SHA-256: a5372ab2fa65ee79059c49eef31492055df8f2802e11c3deccf1053c1eca7961
font_01_sfnt_off00006428.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6428 9552 bytes
SHA-256: 2795c3f749bdd074f1daeb2963f8a814cd5f22883091831ee93f89fa9e548c43