Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb5fdb21d16a9b8c…

MALICIOUS

PDF

79.2 KB Created: 2021-04-07 18:54:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f508d0a3b5f1af06b52e0e6029eff776 SHA-1: d07edef9eb6f7e61e9f520cbacab88b6be8acf6f SHA-256: cb5fdb21d16a9b8c0bdb4ac164ddb4ee501d44eb58f4773d76dc17a504f67885
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document exhibits multiple indicators of malicious intent, including ML classification, ClamAV detection, and heuristics related to payment redirection and password-protected archive lures. The embedded URLs, such as 'https://xezojetit.ru/wix?keyword=payoneer+paypal+2020', suggest a phishing attempt related to payment services. The document's structure and content align with a spearphishing attachment tactic, aiming to trick users into clicking malicious links or providing sensitive information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 9

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://xezojetit.ru/wix?keyword=payoneer+paypal+2020 PDF link annotation
    • http://jolamuvinuma.iblogger.org/alfonsina_y_el_mar_para_piano.pdfIn PDF document text
    • http://usmileofficial.site/why_is_my_linksys_extender_blinking_orangezuqke.pdfIn PDF document text
    • http://sberhome.ru/how_to_design_a_price_listdtj2m.pdfIn PDF document text
    • http://store50off.info/wozawolaroxomalr7l8.pdfIn PDF document text
    • http://xuxikurov.mygamesonline.org/libosar.pdfIn PDF document text
    • http://wiinorama.website/c_language_questions_and_answerszwmcu.pdfIn PDF document text
    • https://s3.amazonaws.com/bidurudilidujug/zugegisifedebevo.pdfIn PDF document text
    • https://lofemeraj.weebly.com/uploads/1/3/2/8/132814933/295944.pdfIn PDF document text
    • http://carluxepaint.site/58810125694ebvv5.pdfIn PDF document text
    • http://xidasetetobuge.scienceontheweb.net/jaredetudanijidome.pdfIn PDF document text
    • https://s3.amazonaws.com/kujesulad/nurama.pdfIn PDF document text
    • https://riveveketudoj.weebly.com/uploads/1/3/4/7/134706505/e5da8d71711.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://a815f367-2516-4b88-9496-eed07d5c1eb7.filesusr.com/ugd/665c20_6e4de8d249d6489d9dc1f9d0244e4e20.pdf?index=trueIn PDF document text
    • http://mofizubekeji.epizy.com/carnegie_learning_geometry_4th_edition_answers.pdfIn PDF document text
    • http://gajewokutonixa.rf.gd/kuwenal.pdfIn PDF document text
    • https://2a983b51-2e13-4971-8c1f-a5bca3ab4353.filesusr.com/ugd/e1a791_221bb90905f847518f57de94fc59a5ab.pdf?index=trueIn PDF document text
    • http://najusibajeful.rf.gd/ladidet.pdfIn PDF document text
    • http://dufotom.epizy.com/caldas_aulete.pdfIn PDF document text
    • https://1ce8651a-bfbb-4b9a-b1bf-24b3b574775a.filesusr.com/ugd/ac72e0_1aa66cd4e10e485e8b9943a3d4eeafb7.pdf?index=trueIn PDF document text
    • https://cabae152-0d18-4cc7-9545-8711a89e332e.filesusr.com/ugd/607e04_3d21b70a133342a583baf92dad11ba45.pdf?index=trueIn 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_off0000f822.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF822 5012 bytes
SHA-256: 402e77550bf720f220498e12c440024a4e781d2e296354c57537d652e15b1c86
font_01_sfnt_off00010945.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10945 11140 bytes
SHA-256: cd70b3058e66242c01fb7ea091f1d52a254ca17563e8442b345c7398189db723