Malicious PDF — malware analysis report

Static analysis result for SHA-256 f04d1ef44bf3514a…

MALICIOUS

PDF

81.9 KB Created: 2021-03-07 17:35:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: fe86a25b4ea70bceb638903fb87314c3 SHA-1: da74baa7600e095edee8840083561f9c644d2fa2 SHA-256: f04d1ef44bf3514a4560c4ce7555ea6a65e052a9eded73edb902e7b82b0bd09d
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is a strong indicator of a phishing or malicious redirection attempt. The ML classifier and ClamAV detection further support its malicious nature. Although no scripts were explicitly extracted, the presence of external URIs suggests an attempt to lead the user to a malicious website, likely for credential harvesting or malware delivery.

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://dugedepap.ru/wix?keyword=made+pure+skin+cream+ingredients PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4449000/normal_600fdd9e959d8.pdfIn PDF document text
    • http://matroskin.space/zuxezesaxr6hwy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379053/normal_6043ba236ddbd.pdfIn PDF document text
    • http://money-team.site/apple_company_email_address_format6lz56.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/dipafuxe/3025422059.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/96a92b31-b096-492b-8012-223eab8753c6/nabipo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7368005e-c2b2-4a9f-90c1-8da903b236fd/53631658638.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/84d192ee-3f20-4495-b7bc-36b8111f93d1/fonopuxi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d69d75a-c76f-4e87-a769-e0bb6911e044/what_is_the_most_effective_reading_strategy.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1988765e-17a6-466d-a871-2e4571aef1de/fundamentals_of_heat_and_mass_transfer_7th_edition_incropera_solutions_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4cc506ac-2cee-4e11-8de3-2a89966429f8/tepaxivufixibol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73a836b2-7734-4c83-8ab0-1605627025be/graco_metrolite_stroller_parts.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/366a2117-c90d-4fde-87f9-a1b559572b5c/craftsman_1_2_hp_garage_door_opener_codes.pdfIn PDF document text
    • https://s3.amazonaws.com/tasufagijaremo/67988590219.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/836bcf55-f967-4d59-8cd7-0f4bc9aaf8f7/realtek_hd_audio_driver_windows_7_64_bit_dell.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25ed6f9c-8c70-4418-93bb-dd5e24906db9/tokaledom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2fa533f7-e0f0-4783-9348-ed4c503da888/22429915249.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b09fda8-9888-4be9-b121-704f15a27e62/logitech_mk330_unifying_software.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_off0001021c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1021C 5428 bytes
SHA-256: a0083e152be046cb81b57edca98548b0e7c9c7da06896ade7a23b15d239ed97e
font_01_sfnt_off00011490.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11490 11028 bytes
SHA-256: 7d260e2c954946ee43f0f83693f48c36d8811c8ac9eff59a359976a9206f168c

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