Malicious PDF — malware analysis report

Static analysis result for SHA-256 05f62af6ac4cc2e3…

MALICIOUS

PDF

66.5 KB Created: 2021-03-07 09:52:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: a78dfadac6dc7510941906c8a289865b SHA-1: 7593e431632b8f406c728f1fb693d3e66f02a17d SHA-256: 05f62af6ac4cc2e3acf0033f9bd6dc9fabb30e2ad9aeaac57485fca0678bdf3b
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://resalured.ru/award?keyword=cummins+marine+qsb+5.9+service+manual PDF link annotation
    • https://bejivuvepezera.weebly.com/uploads/1/3/4/4/134437422/jinapagefok-fenirotej-tefamofozo.pdfIn PDF document text
    • http://avit0.pro/37606730581da754.pdfIn PDF document text
    • http://tryadasert.online/gameloft_zombie_infection_apk_downloadqobll.pdfIn PDF document text
    • http://6gusevshop.space/8383598803rjidc.pdfIn PDF document text
    • http://smartradiobf.ru/gafofexagusoneda5jti3.pdfIn PDF document text
    • http://money-team.site/347691853100tqd8.pdfIn PDF document text
    • http://idem-peshkom.ru/cinderella_movie_2015_downloadh6kcl.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496372/normal_601808901a945.pdfIn PDF document text
    • https://wanibezitajijo.weebly.com/uploads/1/3/6/0/136000154/pelimovuviv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495837/normal_603bf89b4737d.pdfIn PDF document text
    • https://zowololo.weebly.com/uploads/1/3/5/2/135294949/pufonegefudit-kolowaduwivosid-zudotazuv.pdfIn PDF document text
    • https://dibozavo.weebly.com/uploads/1/3/4/5/134501923/gejoga.pdfIn PDF document text
    • https://fitikuwez.weebly.com/uploads/1/3/2/6/132681307/jisutesujafut.pdfIn PDF document text
    • https://jomitapekox.weebly.com/uploads/1/3/4/3/134319499/51871ba2dcac585.pdfIn PDF document text
    • http://meriline.store/502914612917v58m.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490961/normal_5fe4638f9b5ab.pdfIn PDF document text
    • https://mapogukokerezat.weebly.com/uploads/1/3/5/9/135987870/b8d90f9c.pdfIn PDF document text
    • https://marulokovew.weebly.com/uploads/1/3/4/6/134611896/5403476.pdfIn PDF document text
    • http://homearfes.com/what_is_public_administration_by_different_scholarssau67.pdfIn PDF document text
    • https://dubuweni.weebly.com/uploads/1/3/1/6/131637072/8388924.pdfIn PDF document text
    • http://zzzmmmmejjj.space/tetuzidolokegufagekuxaa4iz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000c7ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7AC 5488 bytes
SHA-256: 20606406bf16a06aaa8a4e2e500c6a49a338a54745b49c4582a86f4eb81ebeef
font_01_sfnt_off0000da50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA50 9604 bytes
SHA-256: 562194105346134c96e51da543655b876efe6d1838ceb8b0bad2d2dc88a9055c

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