Malicious PDF — malware analysis report

Static analysis result for SHA-256 1733bf904105146e…

MALICIOUS

PDF

42.9 KB Created: 2020-10-09 00:31:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 5709ea1c1deb37545c83ce1a66c24b2d SHA-1: 61fa98c25100bcbaa5f0963d41fa713ed97a96d1 SHA-256: 1733bf904105146e625c6e422ca30c597a55643fd67f2e4894daeec834b83e20
124 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 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=your+name+eng+sub+full+movie In PDF document text
    • http://files.londyn.letenky-sky.sk/uploads/1/3/1/3/131398362/5c7402.pdfIn PDF document text
    • https://site-1040613.mozfiles.com/files/1040613/79649358991.pdfIn PDF document text
    • https://site-1039222.mozfiles.com/files/1039222/zopat.pdfIn PDF document text
    • https://site-1038682.mozfiles.com/files/1038682/wezemizaguduwusakobuv.pdfIn PDF document text
    • https://site-1037265.mozfiles.com/files/1037265/12426327641.pdfIn PDF document text
    • https://site-1041378.mozfiles.com/files/1041378/94598339300.pdfIn PDF document text
    • https://site-1036981.mozfiles.com/files/1036981/femetizisomanufudowemup.pdfIn PDF document text
    • https://site-1040391.mozfiles.com/files/1040391/50283936821.pdfIn PDF document text
    • https://site-1039494.mozfiles.com/files/1039494/subosoxerus.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/12c352d8-6b5c-40ef-a992-d25d183851e8/xijimupejefa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d36243fa-ebcc-4dfb-a962-32fbfb5d3de8/zezakesufikikixawu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/495bbc6f-6b92-4965-8052-e76a76956def/zonuxo.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

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000055c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55C3 3936 bytes
SHA-256: 453b0f7d81e49d5138415f1f4417d51a2d7221011bbd56ead547ad35f1fbb98d
font_01_sfnt_off000063ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63CE 5248 bytes
SHA-256: f0ebaa409852198ef114c09675e12dc334cc118a74b3d793b5e1a982a8ea811e
font_02_sfnt_off0000759b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x759B 13628 bytes
SHA-256: 2b1ed16086a5a9a9201ff673065e3b2e560f2e56df02ab4eb366a7426af1318a

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