Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7aeb50e1e0b5337…

MALICIOUS

PDF

71.9 KB Created: 2021-02-11 18:12:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b5d0bce2932ef8ff0e1c8c0f5c06b410 SHA-1: 04cfe602e4191f0de2acd53ad37f80e6be9ed7ce SHA-256: c7aeb50e1e0b5337fdc7db8e444ab61842af980b2eecfd50e6bd5bf3b6ced3b6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://leonvi.ru/wix?keyword=traffic+misdemeanor+background+check PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4459166/normal_60145f61eb8c1.pdfIn PDF document text
    • https://vuzufakafedovi.weebly.com/uploads/1/3/5/3/135347170/7801935.pdfIn PDF document text
    • http://biomanua.website/7734013171qlzo2.pdfIn PDF document text
    • http://eurostore.info/gabelli_gold_fund_fact_sheetjjsnl.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461219/normal_5ff897d8b5985.pdfIn PDF document text
    • https://cdn.sqhk.co/xugosovemi/RWhagiV/supercell_hay_day_pop_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489853/normal_5fe73e4928e70.pdfIn PDF document text
    • http://max-lifting.store/vuxejizabapemogudewogarob2t0ds.pdfIn PDF document text
    • https://gemaxapofa.weebly.com/uploads/1/3/2/6/132681544/getozuruwosipako.pdfIn PDF document text
    • http://devlp.design/termination_of_lease_agreement_template_south_africa14cue.pdfIn PDF document text
    • https://wisejagu.weebly.com/uploads/1/3/4/8/134881465/7a828d9b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401716/normal_5fc8c35f14208.pdfIn PDF document text
    • http://becloud.website/comparing_mitosis_and_meiosis_table_answersgj6sz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482848/normal_5fe786f2214cb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pimurif.rf.gd/kigejibivotukoneda.pdfIn PDF document text
    • http://xulezudo.epizy.com/cefalohematoma_vs_caput_succedaneum.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_off0000dcd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCD3 5556 bytes
SHA-256: c3b3b07b3166a0b632db60599ba8d437802c6c8d332594d3bd2a5512f317aa5a
font_01_sfnt_off0000ef8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF8C 10264 bytes
SHA-256: 35707dd0f29c0e96e8740613c28416875d2572f88988b51ca5cedb15bccaf09f