Malicious PDF — malware analysis report

Static analysis result for SHA-256 b222bd2e2c0d8843…

MALICIOUS

PDF

75.5 KB Created: 2020-12-01 06:47:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 0d3209faaece8d2326783a0aacde6859 SHA-1: 907f8ed7f4d92ea0c5618461d384a06afcec57b0 SHA-256: b222bd2e2c0d88437af5a2566d64faa9d8cee9a6c4d44e182c0436d5c1de04ef
104 Risk Score

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 presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://trafffi.ru/123?utm_term=upper+room+daily+devotional+april+6+2020 PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/gofilafixu/python_decorators_cheat_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76ce2be4-1ee5-4e2e-874a-68bbcf75521a/83472770004.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f3264d0b-f08e-44e3-949e-fe697a174196/13772782119.pdfIn PDF document text
    • https://s3.amazonaws.com/wumodukubaru/insanity_workout_torrent.pdfIn PDF document text
    • https://s3.amazonaws.com/juduk/regression_analysis_in_data_mining.pdfIn PDF document text
    • https://s3.amazonaws.com/leguvefu/noxijasedomepeluzegil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/386cfa0a-5e02-4aab-8c30-a477dd1c8219/17051887013.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19322fe2-51fa-4427-bdf5-13edc3077619/79178699616.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d4a57f9-be28-416c-ae98-a276520d0e80/tubibarizosazojer.pdfIn PDF document text
    • https://s3.amazonaws.com/waxejajinigafu/toussaint_louverture_quotes_in_french.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d67b747-0a20-4b33-a757-b7c7f2020281/jevotonapofebexo.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_off0000eaaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAAF 5508 bytes
SHA-256: e04c1c2c48ca5d496ab167b645e5e27e9b08558ae3a7e2c73589530987fb2ef3
font_01_sfnt_off0000fd60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD60 10564 bytes
SHA-256: 4837d304010561e548c2b9c3e6521c28de46e3cd30c9de32a4fbca95886bb70b