Malicious PDF — malware analysis report

Static analysis result for SHA-256 e059b26f25bf715d…

MALICIOUS

PDF

42.9 KB Created: 2020-10-05 08:28:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 28b67a8db2bda72a5189a9311dd6844a SHA-1: 20c8749d9e3e4430d300646dd957eab274c407dd SHA-256: e059b26f25bf715d6e54d818ae2107134ee2bbbc2ba97c0fbb3f3a8611d7d017
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=lying+on+the+sidewalk+bleeding+pdf In PDF document text
    • http://voxanotan.artontheprairie.org/uploads/1/3/1/3/131380397/velidisuxarekif.pdfIn PDF document text
    • http://jaraxur.tribalbelliesstudio.com/uploads/1/3/0/8/130874493/puwusuxapuxubid.pdfIn PDF document text
    • http://files.golfnutt.com/uploads/1/3/1/3/131383318/roxewobetaxire.pdfIn PDF document text
    • http://files.nationalwealthcenterclub.com/uploads/1/3/1/4/131406732/eff6f94c7ace5.pdfIn PDF document text
    • http://vosulu.eastfallsfarmersmarket.com/uploads/1/3/2/7/132741615/cc06a.pdfIn PDF document text
    • http://files.madisonccl.info/uploads/1/3/0/8/130874125/2868e6bd1e788e.pdfIn PDF document text
    • http://soxiviza.xanderkarkruff.com/uploads/1/3/1/4/131453096/5747285.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/2f1ff1dd-aedf-456e-a8d5-798339525579/lirajawabamebinefe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/24b7f152-9cac-4916-b1f8-9fb73b4aeaa6/miradowezerusozopamuref.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/06578b9a-0c11-48a8-87c9-5dd65e22ecef/2144076389.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9bd6947b-5bca-4d7a-9576-359dbf204381/kirada.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0fd1c9df-6b3b-4072-8b2d-07f3790cbc31/pawalobore.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1423ceb-3d11-4922-ba2d-252ae46d31cc/kuvokipijunujaxidav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea066089-b355-4919-af8f-5b4ef5923735/molobubiriwinufewelerep.pdfIn PDF document text
    • http://www.sjsu.edu/faculty/patten/sidewalk.htmlIn 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 4

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000695a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x695A 5548 bytes
SHA-256: d1e633cda52213ef4717a77b6910cc44bb338bbf6c798e38c3937f14c34f6ea7
font_01_sfnt_off00007c5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C5A 10084 bytes
SHA-256: 8293b75de9489177c593ba0e1df3ee430c0e60fa049906adcde36d13ccd8c7d5

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