Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f461f5103d99476…

MALICIOUS

PDF

78.0 KB Created: 2021-02-27 10:31:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: e99fd968c29b78d1f75ed285035be530 SHA-1: 546d9fbd848141db63d8c53a0187f764831c445d SHA-256: 9f461f5103d99476e51fbd6262867a071093a9f27f16f1e30a77f72095f6fd2b
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://fokemale.ru/wix?keyword=free+unblocked+driving+games PDF link annotation
    • https://rimofemosi.weebly.com/uploads/1/3/4/3/134351632/6b7ec.pdfIn PDF document text
    • http://nuloriwilorij.scienceontheweb.net/how_to_set_timing_on_a_5hp_briggs_and_stratton.pdfIn PDF document text
    • http://zatuzosej.iblogger.org/naming_organic_compounds_with_functional_groups_worksheet.pdfIn PDF document text
    • https://kitivagep.weebly.com/uploads/1/3/0/7/130775950/vadivarujavipuso.pdfIn PDF document text
    • http://gedadekenoz.mywebcommunity.org/what_is_the_size_of_graco_pack_and_play_mattress.pdfIn PDF document text
    • http://pinegobojefo.getenjoyment.net/56082175764.pdfIn PDF document text
    • http://kufolalat.iblogger.org/scheer_andrew_platform.pdfIn PDF document text
    • http://vizazovabula.mywebcommunity.org/wahl_detail_trimmer_instructions.pdfIn PDF document text
    • https://woxarupuxanuma.weebly.com/uploads/1/3/1/3/131383908/fukodesew.pdfIn PDF document text
    • http://taforojujutusig.mygamesonline.org/algebra_de_baldor_ejercicio_98_pag_161.pdfIn PDF document text
    • http://lumobumekola.getenjoyment.net/how_much_is_a_cochlear_implant_in_canada.pdfIn PDF document text
    • https://rejomopoxe.weebly.com/uploads/1/3/1/3/131383333/6800569.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nirapopujikater.rf.gd/symbol_scanner_li4278_setup.pdfIn PDF document text
    • https://s3.amazonaws.com/zafijukopa/fawavunapusosozijo.pdfIn PDF document text
    • https://s3.amazonaws.com/rudelazifizuvo/7405853407.pdfIn PDF document text
    • http://kepofif.onlinewebshop.net/are_lock_picking_tools_legal_in_california.pdfIn PDF document text
    • https://s3.amazonaws.com/bidurudilidujug/18536228535.pdfIn PDF document text
    • https://s3.amazonaws.com/mexijegedakol/44678185246.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_off0000f540.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF540 5476 bytes
SHA-256: b189b2bb7d1ec9407b389e0bbde982bc4696b3623529c2f60d50cc163b70a1e8
font_01_sfnt_off000107d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107D3 10408 bytes
SHA-256: a2dcf0854542a280c96e08c6ad36d1e4bfd03bc56007176aaf4ee5095ed0b998