Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb16024e63fb356f…

MALICIOUS

PDF

71.0 KB Created: 2021-02-26 17:26:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: baeafbd1d3725cb013e4345bb934f56b SHA-1: 8a7524fb3e8546b2b1ffa19519be43fe115132fa SHA-256: fb16024e63fb356fe69738ba1a604b86c48009a5eea4174890cc8d657bbdccfe
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://jottigo.ru/award?keyword=ruckus+deluxe+schedule PDF link annotation
    • https://vibofizetukoz.weebly.com/uploads/1/3/0/9/130969748/getevirejetura.pdfIn PDF document text
    • http://appletopshop.ru/40962169942vui44.pdfIn PDF document text
    • http://nicepics.xyz/28447249320lhan6.pdfIn PDF document text
    • https://weralafopibobal.weebly.com/uploads/1/3/4/3/134338927/d044998fbaf607.pdfIn PDF document text
    • https://govewusig.weebly.com/uploads/1/3/0/9/130969429/1355553.pdfIn PDF document text
    • http://cherrypimp.online/julosuvekm7pjv.pdfIn PDF document text
    • http://wownatural.fun/189494063001icrm.pdfIn PDF document text
    • http://tb-films.ru/how_to_install_realtek_audio_driver_in_windows_7vj0j0.pdfIn PDF document text
    • http://yognat.space/aquarium_archerfish_tank_sizeksfiu.pdfIn PDF document text
    • http://bobr.space/purchase_gluten_free_lefsebadgb.pdfIn PDF document text
    • http://zuvels.xyz/6179439374x5ym5.pdfIn PDF document text
    • http://unityfree.xyz/crazy_zombies_9._0_game1smr1.pdfIn PDF document text
    • http://nout-sale.site/mopawepidulogapidojaxagsrb1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/94855132866.pdfIn PDF document text
    • https://s3.amazonaws.com/gusule/owners_manual_honda_accord_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/jokotaziweluge/profit_loss_appropriation_account_format.pdfIn PDF document text
    • https://s3.amazonaws.com/sefepugolupalax/acute_otitis_media_guidelines_canada.pdfIn PDF document text
    • https://s3.amazonaws.com/zerepuzuze/avery_templates_labels_60_per_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/pogolo/jatavasibovekiliru.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_off0000dc76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC76 4860 bytes
SHA-256: e7e6810793c92d95ebf17361d1bee34df4ed977ae4d89cfcfea68e26c51d0d94
font_01_sfnt_off0000ed07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED07 10048 bytes
SHA-256: e151732cd74a4c2074235a3af19a08a91099ac070a1d00113bc19ac2248a3ac4