Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dcc285c88e04898…

MALICIOUS

PDF

40.8 KB Created: 2020-10-19 02:18:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-30
MD5: b45678d1d93e66d7bfe18a91068b6ff8 SHA-1: 7f3d946f55bfb66921c9e0f9cad41d064d3fad65 SHA-256: 1dcc285c88e04898a47799252c01caf6c5c9ff2f2dc77ea81621a288f07cafa8
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/strik?keyword=solidworks+portable+2016 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4365606/normal_5f8845994517e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382186/normal_5f8b60a23db56.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365624/normal_5f871dcb0674d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370299/normal_5f8c6699a0be3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374689/normal_5f8a6ec4af300.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369782/normal_5f89afdcee8d2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366321/normal_5f875188a2026.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373301/normal_5f8a00e3cb3af.pdfIn PDF document text
    • https://fulipevaxavu.weebly.com/uploads/1/3/2/6/132695351/lofedotiserito.pdfIn PDF document text
    • https://zelapagetuwuj.weebly.com/uploads/1/3/1/4/131406140/demevawovobel-ruxez-kawoja-kelam.pdfIn PDF document text
    • https://fagisidide.weebly.com/uploads/1/3/2/6/132682833/4273718.pdfIn PDF document text
    • https://rudofodirofebas.weebly.com/uploads/1/3/0/7/130739781/2776403.pdfIn PDF document text
    • https://xujaxivef.weebly.com/uploads/1/3/1/4/131438557/8873408.pdfIn PDF document text
    • https://pimetagedipimop.weebly.com/uploads/1/3/1/6/131636886/dogovitatu_vumudavu_simopiz_lekogobavutota.pdfIn PDF document text
    • https://ganulexotugoris.weebly.com/uploads/1/3/1/1/131164012/pixotilab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370767/normal_5f896d0b9d2ad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366022/normal_5f88555ebf598.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366374/normal_5f8712c284ea5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366947/normal_5f88b54e012b8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0763/0747/files/pisimovoguxajefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8783/2260/files/nidagike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5747/0872/files/fapupovewovo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/0390/4676/files/adult_xxx_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/7073/7563/files/ladadivuxofepekaxajevix.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_off00005c5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C5F 5832 bytes
SHA-256: c34bc43d41d0a2dd67c923a14d71b50cf994304ec4c236bbb2fcd200e01f04bb
font_01_sfnt_off00007058.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7058 11216 bytes
SHA-256: 637016795b60e3b9899d0147b0dd127d01e228b8080caa6e461608748bee01a1