Malicious PDF — malware analysis report

Static analysis result for SHA-256 3be5d62f4e4ed91c…

MALICIOUS

PDF

72.5 KB Created: 2021-03-18 12:10:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 26abc3deec67f2aa6c2429f73fece70f SHA-1: d626b267d00aaeb203f648c831a8aa448d12dc91 SHA-256: 3be5d62f4e4ed91cd4c599fb801283f62bec94605e9159f87d18c1a4aab8b239
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'dugedepap.ru', which is likely a malicious domain used to host phishing content or distribute further malware. The document body, though heavily obfuscated, appears to reference a 'G-shock master of g rangeman black resin strap watch', suggesting a lure to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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/strik?utm_term=g-shock+master+of+g+rangeman+black+resin+strap+watch
    • https://cdn.sqhk.co/jogekiluse/difgVgg/bitoruzoresaguveludamud.pdf
    • https://cdn.sqhk.co/kasesiseb/Kjbhhgd/46675995757.pdf
    • https://cdn.sqhk.co/moxinivo/fgciiU0/zara_larsson_never_forget_you_ft._mnek_lyrics.pdf
    • https://cdn.sqhk.co/zasokolof/FAjdUHE/78008787564.pdf
    • https://cdn.sqhk.co/dedenijikal/ii4Xvhb/photo_editor_software_for_macbook.pdf
    • https://cdn.sqhk.co/kulobibab/Eji74TQ/powijoletoweregobob.pdf
    • https://cdn.sqhk.co/biwizalibe/Eiegcic/starcraft_autumn_ridge_32bhs.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/918a34e8-b5b6-4a3a-808b-4f413a36ce52/winuvejadupapamom.pdf
    • https://s3.amazonaws.com/muwomapotumugi/70773295918.pdf
    • https://uploads.strikinglycdn.com/files/5edea694-c19c-4b54-ad27-e1841a859750/graco_snugride_30_lx_stroller_manual.pdf
    • https://s3.amazonaws.com/tixedujegibex/74497317097.pdf
    • https://s3.amazonaws.com/niporofez/jemexiwa.pdf
    • https://s3.amazonaws.com/wezukep/purple_coneflower_planting_guide.pdf
    • https://s3.amazonaws.com/gotitibekovi/envelope_template_ai_free.pdf
    • https://s3.amazonaws.com/vinejivunitego/dameboluvafu.pdf
    • https://uploads.strikinglycdn.com/files/4fd3446a-c9e4-455e-9b60-c8858ee1dca0/theory_of_justice_ethics.pdf
    • https://s3.amazonaws.com/xafaxotaful/marcela_whaley_news_reporter.pdf
    • https://uploads.strikinglycdn.com/files/e3f981c2-0b34-4b49-ab5d-47ae0d26df42/nafipugufiradimowubi.pdf
    • https://s3.amazonaws.com/lomogas/83398738655.pdf
    • https://uploads.strikinglycdn.com/files/91727768-4f2c-495c-868b-fd036a9f73e9/miravukalugaren.pdf
    • https://uploads.strikinglycdn.com/files/9242d373-488d-415a-8723-c46ab151cdac/company_organization_chart_example.pdf
    • https://uploads.strikinglycdn.com/files/2e97eaac-d2fa-46d2-ae02-6ef4b8be8634/safety_disney_plus_review.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d947.bin
a7e7dc3a493c24780d4fef42df06c55a5a226c80c13288229afb0395843c3190		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD947 5788 bytes
font_01_sfnt_off0000ecf1.bin
678ef8535af42f58c3393a1679943b08cff5e78b17f4f6fbca78b11643b4d179		 pdf-font-stream PDF embedded font (sfnt) at offset 0xECF1 10816 bytes

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