Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d988f1d4f496f0e…

MALICIOUS

PDF

73.9 KB Created: 2021-05-18 13:51:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 2bb011dba3f5a8882846b4f58b19e66c SHA-1: 0d1abb4aa177aa99353b0ee9041a70721c72cdbf SHA-256: 0d988f1d4f496f0e68dd62aefb46912bce8473a8b8b92c874c2cdb907979a20e
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ClamAV detection and ML classifier strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to exploit user interaction through a lure.

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://botokaw.ru/strik?utm_term=shadow+and+bone+cast+alina PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4475739/normal_601a2c2ab791d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412773/normal_603122c9d005c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379973/normal_6021cc4c826d6.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/vinejivunitego/coreldraw_2019_plugins_free.pdfIn PDF document text
    • https://s3.amazonaws.com/zoluwivebiro/59571141244.pdfIn PDF document text
    • https://s3.amazonaws.com/tufitijinexu/napiraletugilani.pdfIn PDF document text
    • https://s3.amazonaws.com/bofake/biharwap_2018_song.pdfIn PDF document text
    • https://s3.amazonaws.com/ropuba/alchemy_guide_wow_cataclysm.pdfIn PDF document text
    • https://s3.amazonaws.com/tokatefozude/godwin_s_cabalistic_encyclopedia.pdfIn PDF document text
    • https://s3.amazonaws.com/wazagidonux/review_tai_nghe_qcy_t5.pdfIn PDF document text
    • https://s3.amazonaws.com/fodose/xofodopowilopedemud.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a183f25c-8021-4a5c-9045-4e0cf49a5f0d/dedogolumexituberifojamu.pdfIn PDF document text
    • https://s3.amazonaws.com/muwemivumazulax/wozugolidarenazamekax.pdfIn PDF document text
    • https://s3.amazonaws.com/befarekogol/how_to_repair_a_snowblower_electric_starter.pdfIn PDF document text
    • https://s3.amazonaws.com/napejaxosinages/82525374635.pdfIn PDF document text
    • https://s3.amazonaws.com/senodiw/77241300536.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fce2348c-2d43-47b7-befb-9f5e83d0b187/fe_reference_handbook_10.0.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b516ba8a-1b32-4e4c-b8b9-eeec691cc17c/70405539350.pdfIn PDF document text
    • https://s3.amazonaws.com/sagotomagin/telecharger_dictionnaire_anglais_franais_gratuit_larousse.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_off0000e118.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE118 5268 bytes
SHA-256: 6bcfc2c85807849a3bbd56049191060e5c277fb0f3aacd0ab3a5f989513acd55
font_01_sfnt_off0000f30d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF30D 11636 bytes
SHA-256: 41553a3d42a57cc331203738abb3481f7de475c80d609be9553406fe3e3c433b