Malicious PDF — malware analysis report

Static analysis result for SHA-256 a06e9007b4ccd1f8…

MALICIOUS

PDF

72.6 KB Created: 2021-03-08 05:37:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ed774964fd0a5f99f487f060ca0e48b4 SHA-1: 064baced7151236957d404397ba97e5ae5ff52e3 SHA-256: a06e9007b4ccd1f8849f086dd8d180ce5cefc60b2a94d463ec71df0c59da2a06
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://kuzutuzo.ru/wix?keyword=cu+appm+exam+archive PDF link annotation
    • https://sibemawiwojaro.weebly.com/uploads/1/3/4/8/134887292/6250624.pdfIn PDF document text
    • http://peskomment.ru/wijuwviorp.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376375/normal_60207e507de9e.pdfIn PDF document text
    • http://reduslim-shopofficial.site/constitucion_mexicana_articulos_del_1_al_29_resumidos50l7e.pdfIn PDF document text
    • https://guzepebizosi.weebly.com/uploads/1/3/4/8/134880367/78b2a4.pdfIn PDF document text
    • http://redita.fun/capital_funds_investments5zm0h.pdfIn PDF document text
    • http://ipai.online/how_can_i_get_cpr_and_first_aid_certified_onlineu6v7x.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377379/normal_5fdf013167134.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xegukamadoso.epizy.com/tawimusisefidixizajoka.pdfIn PDF document text
    • http://dobiloberororer.rf.gd/manual_j_load_calculation_free_software.pdfIn PDF document text
    • http://bumitenebisi.epizy.com/pexigiziripozereko.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f79f4a6e-44f9-408c-8de1-f1fb0b78b7e6/lafipipidomepoje.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/604a422b-18cc-4d6a-ad34-d17a710ae995/wudewesif.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5dee261b-5782-4486-a809-05f7352653af/sibor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29043aca-3402-4f39-960f-890c41e20244/are_bananas_native_to_australia.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98573fc0-4c5e-4039-8675-80b5333fcf58/present_perfect_worksheet_esl_library.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bfbbc52e-19e1-4763-a60b-a33113e4f237/92909775917.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39ffd324-9d64-474e-93ca-6311a970dc95/math_worksheets_for_2nd_grade_multiplication.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b355086d-09eb-4fba-b6ac-ed6c35ae78ae/software_tester_course_near_me.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c8d3809-653f-4659-b7f2-941263518b32/38419277452.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_off0000e055.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE055 4996 bytes
SHA-256: 3c927e1614d27df4de4b28b175b1c7d889b0b17ef9a620a420cfa66b2f6c15b7
font_01_sfnt_off0000f130.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF130 10608 bytes
SHA-256: 820a8bcf815ce317d0a3866b351994628f23b0edc3f60cb19c820d97a1ef4e93

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