Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a282ef26c945690…

MALICIOUS

PDF

72.6 KB Created: 2021-02-23 08:52:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 426d6b25d3ef7a8f5fcbf0eef4a94db3 SHA-1: 6300cc71fe2c7c353a7e2b177dd16ce6f67a5842 SHA-256: 2a282ef26c945690c1dbcbc44ea8aa1e376fa4a0bedb3573c6c8e481eb644ee8
126 Risk Score

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://druttle.ru/wix?keyword=aroma+food+steamer+manual PDF link annotation
    • https://cdn.sqhk.co/puxedimuwo/gg6vnhb/bitcoin_wallet_owner_lookup.pdfIn PDF document text
    • https://lasasokuvob.weebly.com/uploads/1/3/1/6/131607269/2193216.pdfIn PDF document text
    • https://cdn.sqhk.co/numiwuzuwix/jfthjia/outdoor_spiral_christmas_tree_warm_white.pdfIn PDF document text
    • https://vubufogos.weebly.com/uploads/1/3/4/7/134766152/7544187.pdfIn PDF document text
    • https://cdn.sqhk.co/fupokonabat/iggiif3/95435764050.pdfIn PDF document text
    • https://mubikobilowopo.weebly.com/uploads/1/3/0/9/130969089/10bd02ad7d.pdfIn PDF document text
    • https://cdn.sqhk.co/getabemuto/jiem6dA/leather_horse_armor_minecraft_pe_recipe.pdfIn PDF document text
    • https://cdn.sqhk.co/peferitukofa/ehgpKjh/balenciaga_sweater_dress.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425921/normal_600bae5324c1a.pdfIn PDF document text
    • https://katalajoguv.weebly.com/uploads/1/3/2/7/132740778/vuzurajakiti-wuronabomefidul-fosepinaj.pdfIn PDF document text
    • https://barosowuni.weebly.com/uploads/1/3/1/3/131398377/dukimu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425491/normal_5fe901231dfa5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408343/normal_5fe4dc3c5ff6d.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/fowikorejodi/48684213299.pdfIn PDF document text
    • http://momomalolo.epizy.com/nosql_database_design_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/levumoduf/90698173762.pdfIn PDF document text
    • https://s3.amazonaws.com/fopalew/57113261047.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_off0000e01c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE01C 5040 bytes
SHA-256: d14e665e5ec368fb113f6c8a2304debce60be361d3b1ff8f56055b1fba14db4c
font_01_sfnt_off0000f127.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF127 10604 bytes
SHA-256: 3b7f5d606cb5c6c47a86f0c89f20fa61e014da7b75ac6459ecd47a905f884995