Malicious PDF — malware analysis report

Static analysis result for SHA-256 d50383d510513b85…

MALICIOUS

PDF

39.1 KB Created: 2020-10-06 13:47:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-29
MD5: 4658644a2d41edf5e0f1e90e92ef01df SHA-1: f401a8643203c684f2739782a6bc5a555b89dfd6 SHA-256: d50383d510513b85e7de298dba1664942d524001cfc7357ceca86c397758b801
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://ggtraff.ru/strik?keyword=divorce+papers+pdf+missouri In PDF document text
    • http://gipora.grinterfriends.com/uploads/1/3/1/3/131380729/a710f.pdfIn PDF document text
    • http://veneribol.lagarrigue.co.uk/uploads/1/3/1/4/131437987/gixal_pogafugit_maxezi.pdfIn PDF document text
    • http://files.vikihalfan.com/uploads/1/3/1/4/131407110/foparuxoduka-jegikozixogoz-fexavuwajex.pdfIn PDF document text
    • http://regaxog.violethorizonsfarm.com/uploads/1/3/0/7/130775958/7987794.pdfIn PDF document text
    • http://files.home-winchester.com/uploads/1/3/1/4/131412426/ec0f5ec8.pdfIn PDF document text
    • http://files.benspanbock.net/uploads/1/3/2/8/132815207/dobajelu-magutejujizeran.pdfIn PDF document text
    • http://files.acdzfilm.com/uploads/1/3/2/7/132740458/6341008.pdfIn PDF document text
    • http://files.cocinamarineslares.com/uploads/1/3/0/9/130969341/b667459da0ffee.pdfIn PDF document text
    • http://files.writespacejerusalem.com/uploads/1/3/0/8/130813588/keseperivu.pdfIn PDF document text
    • http://files.evansadopt.com/uploads/1/3/2/8/132814826/6367200.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/1/0431/4749/3536/files/tadesuwumipimaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/5346/7816/files/45444804910.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_off00005d60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D60 5328 bytes
SHA-256: 9381ca768cb03e9ac9d684593d53994b46b97683d875887c4c82d58b7dfcd756
font_01_sfnt_off00006f75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F75 9508 bytes
SHA-256: be6a35186f9f55c0b975cdf67ce9528bdd98e902dcde2d6fa4b514697bcee3fd