Malicious PDF — malware analysis report

Static analysis result for SHA-256 912794155ca40e35…

MALICIOUS

PDF

67.3 KB Created: 2021-02-14 22:35:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: cffef855143e8b3d96400f49606ac1a6 SHA-1: ce6b195ec995d7d8a9dd5f826364b81a096b3c5e SHA-256: 912794155ca40e35682d9a29a499a4837fe2c6db6ec0071238ac1c19ec11d3d2
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://jacksth.ru/123?utm_term=imperialism+cartoons+and+explanations PDF link annotation
    • http://davufemalolaj.iblogger.org/35645935477.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475562/normal_5fcb1bea5403a.pdfIn PDF document text
    • http://kkkirrreeee.space/algebra_problems_6th_grade_math_worksheetscbpu4.pdfIn PDF document text
    • http://fbdirect.site/hanuman_chalisa_malayalamw54cj.pdfIn PDF document text
    • http://kifenefazujiz.iblogger.org/19790512351.pdfIn PDF document text
    • https://zukixemafeka.weebly.com/uploads/1/3/1/3/131398149/553336.pdfIn PDF document text
    • https://rajarajo.weebly.com/uploads/1/3/1/3/131398110/cc62ed3856ea007.pdfIn PDF document text
    • http://itanah.space/current_weather_report_in_ludhianaxpejn.pdfIn PDF document text
    • https://wozukepob.weebly.com/uploads/1/3/4/0/134017809/divevowonevavum_bodabuninobibo_zawapetiruji.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383913/normal_6018c8cf4eab2.pdfIn PDF document text
    • http://anbieterbewertung-autoscoutch.com/abrao_de_pai_joo_emshlfo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459182/normal_600ae965b4bda.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mokodipixa.epizy.com/tylenol_sds_sheet.pdfIn PDF document text
    • http://wulitebajanuba.rf.gd/can_solve_this_30_answer.pdfIn PDF document text
    • http://kimigabajo.epizy.com/xuwitovivijaxeguka.pdfIn PDF document text
    • http://wipedeposadav.rf.gd/41630551002.pdfIn PDF document text
    • http://fotafufoka.epizy.com/93151628508.pdfIn PDF document text
    • http://datonojafasaxup.rf.gd/computer_basic_full_form_list.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_off0000c9ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9AD 5224 bytes
SHA-256: 7cb05e60df30ccd592a73d7c21c424b60d15c87242b196ff09ac98078c7e1320
font_01_sfnt_off0000db57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB57 10952 bytes
SHA-256: 8d8d3bac0532ce293383a2f53f0f2c795cb15573b5899441c971296da6a96f26