Malicious PDF — malware analysis report

Static analysis result for SHA-256 af60ff596fde8de0…

MALICIOUS

PDF

38.6 KB Created: 2020-11-06 17:06:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: f969e0d4308dac66938cf6346b846e42 SHA-1: ea6a4f4d1bec9c2ee97892579ac5b22c316a8ec9 SHA-256: af60ff596fde8de09b5c024c3cf3ade8c99d8d060bd9073888133b86273d5bc8
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffset.ru/123?keyword=manual+screw+jack+lift PDF link annotation
    • https://worozimovazez.weebly.com/uploads/1/3/1/4/131406108/dipisulemu_muzifaratudoxo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388620/normal_5f93f9136beb9.pdfIn PDF document text
    • https://vizomitula.weebly.com/uploads/1/3/4/2/134266598/dukixenaje.pdfIn PDF document text
    • https://xolisibi.weebly.com/uploads/1/3/4/4/134462635/5739044.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385026/normal_5f9f8a4550e91.pdfIn PDF document text
    • https://xebikazogede.weebly.com/uploads/1/3/2/7/132740990/3937250.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366401/normal_5fa2d3115e913.pdfIn PDF document text
    • https://nukubutoti.weebly.com/uploads/1/3/2/3/132302768/dukulix.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369632/normal_5f8b5c736cc66.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391001/normal_5f8e4b16cc08d.pdfIn PDF document text
    • https://xexovelez.weebly.com/uploads/1/3/0/8/130813416/befumupej.pdfIn PDF document text
    • https://kikuriniwabutip.weebly.com/uploads/1/3/4/4/134440093/1756065.pdfIn PDF document text
    • https://lafibovuvi.weebly.com/uploads/1/3/4/6/134653173/7797993.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366965/normal_5f900bce371ee.pdfIn PDF document text
    • https://lejigatoni.weebly.com/uploads/1/3/1/8/131871980/kebibibekotod.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://nerukubukob.files.wordpress.com/2020/11/41419849676.pdfIn PDF document text
    • https://fegaretu.files.wordpress.com/2020/11/divigawosatubenilu.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_off00005709.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5709 5112 bytes
SHA-256: 6d53eb2c06344898e0a45adec486a5f9e0102d6cd50545a8835c5f56e63d2ed5
font_01_sfnt_off000068a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68A1 11268 bytes
SHA-256: 83715a836911ec4e9c55ec8a5a09deac07e26fa301efb5cd7789571d6954add4