Malicious PDF — malware analysis report

Static analysis result for SHA-256 d96e40a04fd7ed70…

MALICIOUS

PDF

72.3 KB Created: 2020-12-08 19:30:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 9b1285b402edc344d8c69847e1e9bb20 SHA-1: 935d55ab8a17fa979416daf2ec5e5a35a72bbfea SHA-256: d96e40a04fd7ed7034766aff6d56ca2b6b60c502c7fe30019421900e8d94acc6
96 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 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 0.9997

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://traffset.ru/strik?utm_term=another+word+for+inspiration+in+different+languages PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4480145/normal_5faed57ebdacc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369150/normal_5fa3602a29827.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/rekawexuretowo/manual_of_systematic_bacteriology.pdfIn PDF document text
    • https://s3.amazonaws.com/woxojuxafopuv/hogwarts_letter_template_editable.pdfIn PDF document text
    • https://s3.amazonaws.com/gowebabuxogiro/66644548990.pdfIn PDF document text
    • https://s3.amazonaws.com/tupofelasujewas/erp_implementation_project_plan_template.pdfIn PDF document text
    • https://s3.amazonaws.com/lorugipopuxe/fezumisekodedexojuf.pdfIn PDF document text
    • https://s3.amazonaws.com/tomamujuf/84992644916.pdfIn PDF document text
    • https://s3.amazonaws.com/zevutebulaworel/yify_rss_yts_browser_pro_apk.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf49fd1972c46e3c94db70/1606371838551/epic_hero_definition_oxford_dictionary.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc36151a13a450bab040bac/t/5fcc413833187724c4e55988/1607221561359/best_party_music_2019_spotify.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cfc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFC8 3120 bytes
SHA-256: 16a0685b1af8f7ff3286410c82d065b2ef9dd16f5cc5e004aadb0dd239daad33
font_01_sfnt_off0000dafb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAFB 5384 bytes
SHA-256: 03d2abf4fddf59433fba6d52d7def0da55d76eb7fa4ffa2adbbc3c7953828a8f
font_02_sfnt_off0000ed5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED5B 12828 bytes
SHA-256: cc24ce7c4be4008bad4855b3b5179e2b25e8f55012c3a4c7f08ca0614e2c2719