Malicious PDF — malware analysis report

Static analysis result for SHA-256 7eab219013dfa01b…

MALICIOUS

PDF

74.1 KB Created: 2021-03-06 03:33:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: a8731ddd2c7a38ef3d9650b59e71f646 SHA-1: f27c98e952a9fcae1646318b7865e87dfcdf5363 SHA-256: 7eab219013dfa01bfe05d0f40cd2908346d3575a4d609ef6ab314ceba5b7f7fd
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous external URIs and is flagged as a link farm, indicating a likely phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a malicious document designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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://resalured.ru/strik?utm_term=how+to+learn+rap+fast PDF link annotation
    • https://cdn.sqhk.co/papedajapej/jbridha/80226638308.pdfIn PDF document text
    • http://bagerisevi.scienceontheweb.net/37492767170.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475376/normal_602884e49ddc9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451565/normal_603a6d5f1a1b2.pdfIn PDF document text
    • http://lumacy.site/costos_de_produccion_definicionyffs0.pdfIn PDF document text
    • https://cdn.sqhk.co/novoganug/wghgems/bususesi.pdfIn PDF document text
    • http://honey-love.ru/7085033589831osv.pdfIn PDF document text
    • http://bcpreactiva-enlinea.com/1125012798381pok.pdfIn PDF document text
    • http://likedizar.medianewsonline.com/das_wunder_von_bern_doping.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382958/normal_6026b23094eeb.pdfIn PDF document text
    • http://uscovidcharts.com/limeledoxovekojevepek4sl5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387715/normal_60221a23628c3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392872/normal_5fd322b66587a.pdfIn PDF document text
    • http://supermagazforsale1.xyz/48574956924y9ftj.pdfIn PDF document text
    • https://cdn.sqhk.co/julukimesof/ibJQNgg/raft_mod_mcpe_map_download_free.pdfIn PDF document text
    • http://gepanukotex.getenjoyment.net/best_math_workbook_for_5th_grade.pdfIn PDF document text
    • https://cdn.sqhk.co/pimabosi/joKjhCb/85024274830.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bemujamo.rf.gd/35367333975.pdfIn PDF document text
    • http://dexixikix.epizy.com/59023460208.pdfIn PDF document text
    • https://dc6b22d1-fd3c-476a-b8f1-b0505981f591.filesusr.com/ugd/ab5adf_78c7744283da466ca5ed99abdffaa53c.pdf?index=trueIn PDF document text
    • http://nakarajibap.myartsonline.com/fairy_tail_en_franais_saison_7.pdfIn PDF document text
    • https://8f20b4bd-83f7-4a55-8c6f-e9501e2e061c.filesusr.com/ugd/c1c462_ba32211acbc14039aefcc06cb47703cc.pdf?index=trueIn PDF document text
    • https://a1c9bafd-2917-4c1b-b79c-a4b44a941470.filesusr.com/ugd/f0f215_cf5baa960e4e4c07993ad3be22bd050d.pdf?index=trueIn PDF document text
    • https://fad58b31-c538-4d3f-828d-7998eec853b9.filesusr.com/ugd/7e6083_60da7365752446ca8dc595aa091461a5.pdf?index=trueIn PDF document text
    • http://lobopekogolo.onlinewebshop.net/corsair_cx750m_cable_compatibility.pdfIn PDF document text
    • http://gerutinikokowa.epizy.com/37216719169.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_off0000e375.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE375 4948 bytes
SHA-256: aa5804cc4342cf9d179ad3eaec8f56a1f298eaa2ec7ed2918f155009b9082cb1
font_01_sfnt_off0000f467.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF467 10832 bytes
SHA-256: dde4795c4cd051a998b3c4fe14b5c24ddcb1bcf8b174f1e303c353805b58c9d3

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