Malicious PDF — malware analysis report

Static analysis result for SHA-256 da8182851e6986e7…

MALICIOUS

PDF

82.2 KB Created: 2021-02-26 23:17:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: bca3ad6e5bb9faa724e111562f14286d SHA-1: 193cd5c8f3e9ef8dcbdbcc168ca46ad64b79309d SHA-256: da8182851e6986e79d0bbef2bc1bc514696056d5d56f22fc4a44f1802f30a01c
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://lozipotod.ru/strik?utm_term=bissell+turboclean+powerbrush+pet+carpet+cleaner+2987+vs+2085 PDF link annotation
    • https://teraxumafelenug.weebly.com/uploads/1/3/4/7/134747654/bebolepikosopir.pdfIn PDF document text
    • http://tufodudem.mypressonline.com/determine_quadratic_function_from_table_of_values.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371536/normal_5fdae9ba88400.pdfIn PDF document text
    • https://vafukomoruf.weebly.com/uploads/1/3/4/8/134862603/xokunefomadaf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500199/normal_5fe60a0b7583c.pdfIn PDF document text
    • http://memisada.mygamesonline.org/23369136528.pdfIn PDF document text
    • https://cdn.sqhk.co/pimidima/Qkigjgh/sling_drift_unblocked_games_66.pdfIn PDF document text
    • http://vivekawiga.sportsontheweb.net/kiferexemavuxetelagagoko.pdfIn PDF document text
    • https://devudupaf.weebly.com/uploads/1/3/4/8/134880603/4e9ce.pdfIn PDF document text
    • http://detonic-deutschland.website/sullivan_algebra_and_trigonometry_8th_edition98lcn.pdfIn PDF document text
    • https://risuwawew.weebly.com/uploads/1/3/4/4/134403416/4f05ea3a62b.pdfIn PDF document text
    • https://cdn.sqhk.co/vakusukereju/geyzhbA/woberakumobunuriselake.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxozowaki/jc2CAhe/shark_attack_game_free_download_softonic.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://diwavubodinaroj.myartsonline.com/dewalt_d55146_type_8_parts.pdfIn PDF document text
    • http://kedokonox.rf.gd/82551486519.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_off0000ffb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFB8 6192 bytes
SHA-256: 4486c260c1eb0e450a43787c4aca04fb91c9928d88958daaf64c15133e08af24
font_01_sfnt_off000114da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114DA 11384 bytes
SHA-256: 17631afe8b8c1e6941e46403aad4e92a5fbd212ced3961ab5a068a41f676f3c5