Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9271301c413e55e…

MALICIOUS

PDF

69.3 KB Created: 2021-02-12 19:16:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 9d147f95d6adbeb3c75e69b3c63a7504 SHA-1: 0df1cd25257f16235e666f022cc74b21f4b29673 SHA-256: d9271301c413e55ec6db394e5cd5e191a2f94c57de811b814b717dde9646bfea
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jottigo.ru/wix?keyword=autopage+rs+730+install+manual PDF link annotation
    • https://defaxudenuged.weebly.com/uploads/1/3/5/2/135293647/jazutapi.pdfIn PDF document text
    • https://kokozorakozuwel.weebly.com/uploads/1/3/0/7/130775651/2806226.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444370/normal_6024aab14738d.pdfIn PDF document text
    • https://renudufodajofi.weebly.com/uploads/1/3/4/8/134884992/1738766.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455902/normal_601f0ea9e5d56.pdfIn PDF document text
    • https://girosiwubu.weebly.com/uploads/1/3/0/7/130740458/jejotelajo.pdfIn PDF document text
    • http://sdfsdfsdf.shaketorch.com/66327843263.pdfIn PDF document text
    • https://fanepolareroroz.weebly.com/uploads/1/3/4/6/134666972/dalobexobexebav.pdfIn PDF document text
    • https://jamobosis.weebly.com/uploads/1/3/4/6/134684796/d1ecb22e591b1c6.pdfIn PDF document text
    • http://somukegizos.66ghz.com/59209497075.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426967/normal_6011b4ee684b6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://nekezoxugi.rf.gd/how_are_you_enjoying_your_weekend_answer.pdfIn PDF document text
    • http://nozumipoz.epizy.com/catering_system_project_report.pdfIn PDF document text
    • http://xerifuxedu.rf.gd/lutheran_catechism.pdfIn PDF document text
    • http://gusutawidike.epizy.com/fing_network_scanner_apkpure.pdfIn PDF document text
    • http://bewaxupu.rf.gd/xoredok.pdfIn PDF document text
    • http://banugigo.epizy.com/gedumizagunosamedukuwidal.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c5fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5FE 5396 bytes
SHA-256: bcc86955f69f38ca025f80dfc80a19bb89843279e3edd3d0d0610a5c29b19086
font_01_sfnt_off0000d844.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD844 9904 bytes
SHA-256: 5c7ce9d85f69d025a72c12b85bca4982d067dd5b93daa5b2bc76174b25fff712
font_02_sfnt_off0000fa34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA34 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2