Malicious PDF — malware analysis report

Static analysis result for SHA-256 98eb8d21cc579875…

MALICIOUS

PDF

42.6 KB Created: 2020-11-09 08:40:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 2c3ce4437819a26da54abc86fef7ea69 SHA-1: b3d45b9408883e02a2a67f691f0eea3727c95936 SHA-256: 98eb8d21cc579875c29b4c5304e19055c99ceb07f62a0fefbb5cabd8e029fe4c
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://trafffi.ru/aws?keyword=3+player+pool PDF link annotation
    • https://jigaxokere.weebly.com/uploads/1/3/4/6/134622899/fewiniwuwewuxi-fegidijibojumo-woxakonulapomor-liteke.pdfIn PDF document text
    • https://nosekuge.weebly.com/uploads/1/3/2/7/132740467/zefufusodasiro.pdfIn PDF document text
    • https://jixidaku.weebly.com/uploads/1/3/4/4/134495137/2477977.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369174/normal_5fa79381efc1a.pdfIn PDF document text
    • https://sumulejuno.weebly.com/uploads/1/3/4/3/134361372/5571419.pdfIn PDF document text
    • https://daginunus.weebly.com/uploads/1/3/4/5/134597638/mimogime.pdfIn PDF document text
    • https://fidevawane.weebly.com/uploads/1/3/0/8/130814252/jexatuvugo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391621/normal_5fa0b92733b20.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/7d3707d5d.pdfIn PDF document text
    • https://gejatovuri.weebly.com/uploads/1/3/1/4/131406669/dalubofik.pdfIn PDF document text
    • https://tenabawik.weebly.com/uploads/1/3/2/7/132710661/tusosufak.pdfIn PDF document text
    • https://vonubaxuted.weebly.com/uploads/1/3/1/4/131452839/rabodogoju.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://lowipaded.files.wordpress.com/2020/11/jupemesunugidubutexavuvin.pdfIn PDF document text
    • https://faluxaguwid.files.wordpress.com/2020/11/69508986946.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzaganog/commands_of_autocad_2010.pdfIn PDF document text
    • https://forakufu.files.wordpress.com/2020/11/powers_and_exponents_worksheet_6th_grade.pdfIn PDF document text
    • https://fojalotidunu.files.wordpress.com/2020/11/757566458.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_off000068a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68A7 4804 bytes
SHA-256: f1f81d9ce6e9ea00224fc9fd3046a45ee5f272e025b9c09b5e5ccb8ec7871152
font_01_sfnt_off00007916.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7916 10976 bytes
SHA-256: 454ed702ffc6925c972073caa810ed206d3235228843083d5df07fa8d38bacda