Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dcb8ee9cabf4487…

MALICIOUS

PDF

78.7 KB Created: 2021-04-05 22:10:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: c0a8d538fc7b062987f24ba776556a62 SHA-1: 7a962abe7cf5df1b937c5310d255968aeed931ba SHA-256: 0dcb8ee9cabf44878a12b804f368e4e98e245c6312c9e78d9698eaf4164532bc
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URL pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, and the presence of embedded URLs indicates an attempt to direct the user to external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://dugedepap.ru/strik?utm_term=surah+mulk+in+english+words PDF link annotation
    • https://cdn.sqhk.co/mepawoworu/Uegj8Uy/gefud.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443799/normal_6067c96853755.pdfIn PDF document text
    • http://bomudomi.iblogger.org/90455440555.pdfIn PDF document text
    • https://cdn.sqhk.co/libobivole/BKG7hjm/54841806175.pdfIn PDF document text
    • https://cdn.sqhk.co/revowemerem/gcheTVr/74685946204.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500895/normal_606af23e5ba66.pdfIn PDF document text
    • https://cdn.sqhk.co/fidegelotag/5S4zjj3/ice_cream_recipes_for_ice_cream_makers_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/tuvameboroke/bhgVogj/fios_tv_one_equipment_cost.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373779/normal_6040567789f58.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499285/normal_6032c773d611c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488139/normal_6052bd8e6dcea.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/lekezaru/article_about_fashion.pdfIn PDF document text
    • http://nufagogofuj.epizy.com/amplifier_song_pagalworld._io.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73c103db-91ee-4541-948f-aafcd35f98b1/corian_countertop_dealers_near_me.pdfIn PDF document text
    • https://s3.amazonaws.com/tobobowu/88052139703.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd75f0ae-25a5-4ef2-978a-dbc3cb0d4977/dyson_dc59_battery_reset.pdfIn PDF document text
    • https://s3.amazonaws.com/figugipopar/52696410763.pdfIn PDF document text
    • https://s3.amazonaws.com/jemisajoda/19169866000.pdfIn PDF document text
    • http://ripizidogiga.rf.gd/reliability_in_quantitative_research.pdfIn PDF document text
    • https://s3.amazonaws.com/pajukovuxetu/sc_dmv_permit_test_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/jasadavebaga/zevurakamil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3d45f5e-b9e2-4ec3-a4d5-26cec9f51785/bally_slot_machine_parts_ebay.pdfIn PDF document text
    • https://s3.amazonaws.com/lixisariwulo/fort_worth_police_department_accident_report.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_off0000f402.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF402 5500 bytes
SHA-256: 27deaee8c7a34823d7b3ef4beccb1280688f6e0cb1e73308f012747f67a0c204
font_01_sfnt_off00010694.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10694 11352 bytes
SHA-256: 37a8816449e94adbce5c164b1bfb53197167625da9a73ab16fa8fac72aa4428e

Open this report in the interactive analyzer, or submit your own file for analysis.