Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f2d491b17175f8e…

MALICIOUS

PDF

69.3 KB Created: 2021-03-08 05:45:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 628a3bce8d9eefb4f75a151ff5f9b37f SHA-1: f3d749867cbb99c820ff7a15b7813fb10a3b4e88 SHA-256: 5f2d491b17175f8e6fe404e7ce8d5385daa3f303d596bddb3207151cb1538505
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jumiwimov.ru/award?keyword=ranger+boats+gear PDF link annotation
    • https://nesamakamaxo.weebly.com/uploads/1/3/1/6/131636712/70498f81cba301.pdfIn PDF document text
    • https://dasirexifavud.weebly.com/uploads/1/3/5/3/135320576/melilatonivado.pdfIn PDF document text
    • https://xexibuwowixuzu.weebly.com/uploads/1/3/4/4/134455615/5e263f459e.pdfIn PDF document text
    • http://lishop.site/huawei_health_app_stopped_workingkggtl.pdfIn PDF document text
    • https://tefitosuwit.weebly.com/uploads/1/3/4/4/134478986/kulab.pdfIn PDF document text
    • https://nogigeto.weebly.com/uploads/1/3/4/6/134665346/8aa1bfc587f.pdfIn PDF document text
    • http://just-gopro.com/wodeje0x3j.pdfIn PDF document text
    • http://naturfresh.space/xuwilixi2ubu9.pdfIn PDF document text
    • http://uspeh.icu/69408950119ed8x1.pdfIn PDF document text
    • https://zijoganidilo.weebly.com/uploads/1/3/1/8/131856317/jabawoxugizebodagex.pdfIn PDF document text
    • http://hookup671.site/dublin_airport_departures_informationpmw55.pdfIn PDF document text
    • https://balejumefem.weebly.com/uploads/1/3/0/8/130814467/197e0.pdfIn PDF document text
    • http://tazikuruwuwozu.22web.org/zilugomaribawivawexeser.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zedaziwubisod.rf.gd/piduje.pdfIn PDF document text
    • http://jowuwivipi.rf.gd/weniwob.pdfIn PDF document text
    • https://5e3b32e6-a537-4a58-a531-ef303a468713.filesusr.com/ugd/120874_8147107ea8094c129dd68768eb855927.pdf?index=trueIn PDF document text
    • https://661c91a2-68a2-4ae3-aaac-ef96b6cc7894.filesusr.com/ugd/b926a8_63bbc1f4937e46ef87475a73e426071b.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/rilexazejuzovep/netflix_hacked_apk_latest_version.pdfIn PDF document text
    • http://wawuzir.epizy.com/fun_multiplication_worksheets_grade_6.pdfIn PDF document text
    • https://s3.amazonaws.com/rodigapigeta/mamidokavirerakoba.pdfIn PDF document text
    • https://s3.amazonaws.com/bajuse/96158829960.pdfIn PDF document text
    • http://valolezame.epizy.com/stroke_secondary_prevention_guidelines_2017.pdfIn PDF document text
    • https://cccd2283-d272-450a-840b-6541230ebad2.filesusr.com/ugd/5de1df_16a73b3f89a34c56991d0843dae6072a.pdf?index=trueIn PDF document text
    • https://26c1613e-5d28-4fa3-89cb-3d2c9ab59faf.filesusr.com/ugd/fe83c3_0f916f3d5b1947d19064cac153b1d945.pdf?index=trueIn 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_off0000d4e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4E4 4968 bytes
SHA-256: f03f6c06ae32f4809e9d8f3a69cff75bea020448894d5d6743f866c2915eaef8
font_01_sfnt_off0000e5df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5DF 9784 bytes
SHA-256: 45cf7fdd0449237d841eb065947c3a32ef21769448ae133bf7e9869cfb828ca0

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