Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d2215f42b33884e…

MALICIOUS

PDF

74.8 KB Created: 2020-12-26 03:46:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: e5d9f5872509a8a5ae6311eea35c1474 SHA-1: 117e4b056f8a7e64eb52d7c4e548a10c0f4eb25e SHA-256: 4d2215f42b33884ebf91985852a3725506b94ff2b7b045854d0d37b4204dcc6c
136 Risk Score

Malware Insights

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

The sample was detected as malicious by ClamAV and an ML classifier, and exhibits characteristics of a payment redirection lure. The embedded URI points to a suspicious domain, likely intended to host a malicious payload or phishing page. No scripts were extracted, but the PDF structure and heuristics suggest a phishing attempt.

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
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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://trafftec.ru/strik?utm_term=grow+cube+game PDF link annotation
    • https://cdn.sqhk.co/dadakafopina/MhjBkgP/jinilomepig.pdfIn PDF document text
    • https://cdn.sqhk.co/xojafimib/4jcptif/fakapisofixip.pdfIn PDF document text
    • https://cdn.sqhk.co/lewivapawo/f2klijf/diretevasunasogirew.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374364/normal_5fbd63282f5ac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412996/normal_5fbb4c37042a7.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/gujutavevive/find_balance_sheet_of_a_company_india.pdfIn PDF document text
    • https://s3.amazonaws.com/rozebofukixus/gifusuzewapiv.pdfIn PDF document text
    • https://s3.amazonaws.com/mozedijiz/car_dashboard_signs_and_meanings.pdfIn PDF document text
    • https://s3.amazonaws.com/remavuj/busch_light_nutrition_information.pdfIn PDF document text
    • https://s3.amazonaws.com/mekonulegipero/74879573272.pdfIn PDF document text
    • https://s3.amazonaws.com/widofafane/circular_saw_cutting_guide_jig.pdfIn PDF document text
    • https://s3.amazonaws.com/gupojakami/modern_fact_sheet_design.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_off0000e897.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE897 5172 bytes
SHA-256: dd19f6ad29275a09c7d6da93020749e100baad37e6da8320777d84f0a8b6f7a5
font_01_sfnt_off0000fa37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA37 10776 bytes
SHA-256: adda34f6f85b1cf176407d7815fcb7d80528066c32dac421fe097420fdb696ab

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