Malicious PDF — malware analysis report

Static analysis result for SHA-256 22522ba88bb3a4eb…

MALICIOUS

PDF

66.5 KB Created: 2020-11-14 03:52:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: d68634336c61e1675de597f5fa702ab6 SHA-1: 682bfa5913428adb3f01d04727fca9f03c03968e SHA-256: 22522ba88bb3a4eb339b55eeb13d3886ba697f1a6dfbb1fdff50487d2ea96a77
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://trafficel.ru/strik?utm_term=descargar+como+ser+un+latin+lover PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4377098/normal_5f9d0e33eff59.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403429/normal_5f92f52a185a4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lixasifasi/mecanismo_de_accion_de_los_anticonceptivos_orales_combinados.pdfIn PDF document text
    • https://s3.amazonaws.com/guwutivupudutu/definition_of_incremental_plagiarism.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ca047f92-823e-4354-b4d3-e34c7720246c/osmosis_potato_experiment.pdfIn PDF document text
    • https://s3.amazonaws.com/nitidadufetenu/gcse_maths_equations_sheet_aqa.pdfIn PDF document text
    • https://s3.amazonaws.com/sowewazulejewi/hh_66_vinyl_cement_thinner.pdfIn PDF document text
    • https://s3.amazonaws.com/gazitif/15001334577.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/816cec6a-018c-4a85-a7b8-1ac2e6ba6426/97304964678.pdfIn PDF document text
    • https://s3.amazonaws.com/kavalukato/zandalari_troll_rp_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/buwosevax/rezodix.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_off0000c869.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC869 5180 bytes
SHA-256: 947b41e9b796919261c2fa5897bd639e4c39a5f408d091d84f2430662171689c
font_01_sfnt_off0000da02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA02 10504 bytes
SHA-256: b04f71e23fb4986a0c4e189822c3490e2c398cfca67d91691b9bf70a334ae11d

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