Malicious PDF — malware analysis report

Static analysis result for SHA-256 876e5075b70a95e7…

MALICIOUS

PDF

69.3 KB Created: 2021-03-05 08:10:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 605ffbbce60cd4747bfd79e3ddd79318 SHA-1: 31fc289b8fb696e443c72a2c1f2acc13dc683bca SHA-256: 876e5075b70a95e7b5777cfdbce4a41a259908326533ebb131bf8b46f0416712
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://lozipotod.ru/award?keyword=lg+65uf8500+parts PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4489595/normal_5ff0a1f85cf5a.pdfIn PDF document text
    • http://josusama.iblogger.org/99418164838.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403537/normal_5fde795c832ca.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495839/normal_5fca2e5cdff77.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376380/normal_5fc700ca52aab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471959/normal_6021ccb0328ca.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/89c25b84-f3d3-4ad7-971f-0c552bf521c4/spanish_family_words_quizlet.pdfIn PDF document text
    • http://duxuramubot.epizy.com/interview_questions_to_ask_nurse_manager_candidates.pdfIn PDF document text
    • https://s3.amazonaws.com/wuwabobujasivor/61483350831.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3eddc5dc-e744-4bfd-9ffd-9096d2fbc456/pajonovazijixizoletuj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc1eecda-8045-405e-9e84-030d0a8a356e/wudowokulefok.pdfIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/soja_babua_video.pdfIn PDF document text
    • http://xipipowateselok.epizy.com/dozezizifu.pdfIn PDF document text
    • http://nibijifituvi.epizy.com/lasixigijokob.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af454003-38d6-4d59-8f0b-bc5b5dc7a078/68058064649.pdfIn PDF document text
    • http://wusudafatuzawe.epizy.com/27549933122.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ca76e109-690a-40be-af19-08afec6ecf63/hamilton_beach_dual_coffee_maker_leaking_water_from_bottom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e453feda-52e9-447f-afef-c748a0ca652e/pobujakibobebo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98b542c7-dcbb-4ae6-a450-bf3e1cfd7697/95715730661.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_off0000d172.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD172 5592 bytes
SHA-256: f0d5cee85ef3437f2e7d3e70bd3731330ceb4527aa502ddced8313764b359fa6
font_01_sfnt_off0000e48c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE48C 10492 bytes
SHA-256: 1533f1daed39c275115940a3d216655fbbf36fec84290792f2f4e85ee5aac911

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