Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ee3a9e301c37255…

MALICIOUS

PDF

66.6 KB Created: 2021-02-09 12:31:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 5d151d271240ffb9487492e3a234c23b SHA-1: 6f9df893b9e99e1596d9920281635336396185e9 SHA-256: 1ee3a9e301c3725510d0ec51e270836b66e73798d3e2bd56bdf1fb02fc0d16f4
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://bologen.ru/123?utm_term=macroeconomics+exam+1+answers PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4500674/normal_5fd651385a0be.pdfIn PDF document text
    • https://vopesowe.weebly.com/uploads/1/3/4/6/134638419/borevin_xojawabukotar_zuvizorugozoza.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486751/normal_5fd276f50db5b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463812/normal_5fd34dff2e194.pdfIn PDF document text
    • https://cdn.sqhk.co/dapalufited/aHhgRhj/bepazopuvodazupezuzufuv.pdfIn PDF document text
    • http://springital.fun/88944563541u6qik.pdfIn PDF document text
    • https://pepedojimu.weebly.com/uploads/1/3/1/0/131069997/kakititib-divazakuren-reronorafuvezos-xotabetaxe.pdfIn PDF document text
    • https://vifojozajo.weebly.com/uploads/1/3/1/4/131454549/nomur.pdfIn PDF document text
    • http://morpeoplelife.ru/neoclassicism_literature_characteristicsloy1m.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492250/normal_600704fd9b62d.pdfIn PDF document text
    • http://roskycnmx.com/on_my_block_season_3_cast_kendra8kin9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462351/normal_5ff59f761b5b5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465559/normal_5fd5f3ade8dd5.pdfIn PDF document text
    • https://cdn.sqhk.co/takularozo/bjdhghh/zuxuzikawomikixikab.pdfIn PDF document text
    • http://petrol-v-pol-price.site/fokuneviwd3si9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000c73d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC73D 5132 bytes
SHA-256: 0aa3e4ed5b1ae0b2cc5e1c751987a2923eaf67f4397b0a6f375812026ab9a688
font_01_sfnt_off0000d8bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8BF 10968 bytes
SHA-256: abd64760d5cb2ac789ffb44a87e723219200243d8e7c2d373d26d81b6c86bfbb