Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e12d565d1c6040e…

MALICIOUS

PDF

72.8 KB Created: 2021-02-11 23:53:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f83176f2406593c8900732b50cdb7d14 SHA-1: 1bc555ae9c79b21b2ccb49a1c2fbfc047fccca92 SHA-256: 7e12d565d1c6040e50b5827132843822f3e615317a3915f43619f547ec2db817
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/wix?keyword=is+a+mushroom+a+primary+producer PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4417531/normal_5fcbd61f43f4a.pdfIn PDF document text
    • http://o-karte-kopilka.com/7659640851cbu78.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366628/normal_600d94ea4fea9.pdfIn PDF document text
    • http://autolombardpro.ru/futatepabitizovoruft3qp.pdfIn PDF document text
    • https://cdn.sqhk.co/sejixikerut/jaicVhe/4547556700.pdfIn PDF document text
    • http://sdek-24.cc/1_2_inch_sheetrock_weightumxx6.pdfIn PDF document text
    • https://cdn.sqhk.co/loxinesupiva/hbifhdB/69699945962.pdfIn PDF document text
    • https://cdn.sqhk.co/sixitigoxeto/riichhs/tuwelunanoxonebosow.pdfIn PDF document text
    • https://cdn.sqhk.co/remimidotomi/gehdoif/birthdate_of_jesus_christ_year.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450504/normal_5ffcc7dd59442.pdfIn PDF document text
    • https://cdn.sqhk.co/rasirise/gj8iicK/galowes.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374688/normal_5ffa50b54dbaa.pdfIn PDF document text
    • http://idealica-uficialeitalia.website/amm_aircraft_maintenance_manual_wikipedia0kraa.pdfIn PDF document text
    • http://kvyovk.xyz/4394030018058qlj.pdfIn PDF document text
    • https://cdn.sqhk.co/fugolamudara/jeiajf8/rerafawalilewugugepuzatef.pdfIn PDF document text
    • http://bahis-sikayet.com/windows_10_cis_hardening_guidegnroo.pdfIn PDF document text
    • http://instacopyrightcenter.com/commuter_benefits_card_covid61pf8.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/bokofapig/game_clash_of_clans_pc_offline.pdfIn PDF document text
    • https://s3.amazonaws.com/vanatul/circular_saw_guide_system_lowes.pdfIn PDF document text
    • https://s3.amazonaws.com/gogonof/11949167868.pdfIn PDF document text
    • https://s3.amazonaws.com/wexukufedepim/bc_hunting_regs.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_off0000de39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE39 5320 bytes
SHA-256: 08f21bffddf4fd5c2198fb95c4ba8545fc9b581527fa5cdcbc758f21bb49fd2b
font_01_sfnt_off0000f02f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF02F 11216 bytes
SHA-256: 9eb462a7c402efc943312712b3aa101a6e7d691979a02ac8f6fe37322dc1433e