Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb6ad17a0703c3ca…

MALICIOUS

PDF

59.6 KB Created: 2020-10-20 08:40:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-25
MD5: 392b7c559dddcfd43231092372c28b46 SHA-1: 052438a078089eea88a1937dee82a6a7a56e3ea7 SHA-256: eb6ad17a0703c3caa9efc48b1d0745909a38e159350ee6be4b009e6bae87c448
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://gettraff.ru/123?keyword=ncert+science+book+solution+pdf In PDF document text
    • https://tibiwurab.weebly.com/uploads/1/3/2/6/132695994/c1825d7.pdfIn PDF document text
    • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/3722212.pdfIn PDF document text
    • https://moxitasa.weebly.com/uploads/1/3/1/4/131454719/e30a25.pdfIn PDF document text
    • https://saxibodusazo.weebly.com/uploads/1/3/0/7/130740440/2be4e355eb630.pdfIn PDF document text
    • https://sixapinipuso.weebly.com/uploads/1/3/1/3/131384402/xexevidewureku.pdfIn PDF document text
    • https://biwugina.weebly.com/uploads/1/3/1/1/131163984/fuzeje.pdfIn PDF document text
    • https://kilejotiwig.weebly.com/uploads/1/3/1/4/131406519/612562.pdfIn PDF document text
    • https://mumixopid.weebly.com/uploads/1/3/1/8/131872042/c8fa44.pdfIn PDF document text
    • https://rabugotekinevod.weebly.com/uploads/1/3/1/8/131871666/gumudokawi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388289/normal_5f8e2813a1032.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367644/normal_5f874b1443238.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365594/normal_5f89162aea96a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370264/normal_5f8bba184ecd9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365575/normal_5f8e0404eeaa8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370767/normal_5f8d4ec22f6b8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377908/normal_5f8db46c15d84.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384484/normal_5f8d0cb476e7a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380213/normal_5f8e09842e758.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369149/normal_5f8bf327a3847.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366385/normal_5f87bdc317a56.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/af298cb1-f025-4c76-b452-d436ee85f3a3/59184104119.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79604ceb-68a9-48e3-8ce1-92eadc7573fb/buriposijovipenakexe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/89033edc-4ce9-42a7-8983-6e9c5330deb9/xujimimifotagereteweget.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5eef68a4-a9f0-4058-ad50-834c722ab2fb/contemporary_political_theory.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9b177e7-8962-4c6b-9372-92a9bbda25a3/xaxirunavamurigosuvokane.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_off0000acd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xACD1 5112 bytes
SHA-256: d92ab80b2a4e893fc67c01057c7abe7b3177b998caabb4e5703414cc8f44c84d
font_01_sfnt_off0000be38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE38 9916 bytes
SHA-256: ca6ed4f67a8a5062fea14ab0bba8e0827979d7eb9c65d45621ea039de71b348a