Malicious PDF — malware analysis report

Static analysis result for SHA-256 c86111a8ff328abf…

MALICIOUS

PDF

72.0 KB Created: 2021-02-19 19:17:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ccaeacb19e64cb74e664deddbe2aa09b SHA-1: 86d84d6c8011cd5635c5921db2323f15e603b589 SHA-256: c86111a8ff328abfce73cdd5f34dfa832f0fdfb1892ac39210a3405e464673a0
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/wix?keyword=trail+guide+to+the+body+pdf+free+download PDF link annotation
    • https://cdn.sqhk.co/napumefu/J2hjsia/ice_age_village_game.pdfIn PDF document text
    • https://rosowimibezot.weebly.com/uploads/1/3/5/3/135392622/jodisatebipalaxup.pdfIn PDF document text
    • https://cdn.sqhk.co/remimidotomi/idvRa5W/attack_on_titan_season_3_eren_and_historia.pdfIn PDF document text
    • https://cdn.sqhk.co/bozomixega/ejchj1a/dekufekafomagavevezo.pdfIn PDF document text
    • https://cdn.sqhk.co/lufasawo/TvUajgi/81264590444.pdfIn PDF document text
    • https://cdn.sqhk.co/kokademesuz/jbRriis/zunejafil.pdfIn PDF document text
    • https://cdn.sqhk.co/keridola/DzCjcSN/fishing_wedding_cake_toppers_humorous.pdfIn PDF document text
    • https://muxasikij.weebly.com/uploads/1/3/1/8/131872285/b904ad3.pdfIn PDF document text
    • https://cdn.sqhk.co/noviraxat/hhhgJci/zisesexovafikinisus.pdfIn PDF document text
    • https://cdn.sqhk.co/nenutipu/lhdjfJK/pes_club_manager_cheat_engine.pdfIn PDF document text
    • https://cdn.sqhk.co/tivuzofep/dGahgX8/affinity_plus_mobile_banking_app.pdfIn PDF document text
    • http://befomibaxizep.iblogger.org/the_ct_scanner_reading_answer.pdfIn PDF document text
    • https://pajowivi.weebly.com/uploads/1/3/4/9/134904739/09a11539ea.pdfIn PDF document text
    • https://basitonivi.weebly.com/uploads/1/3/4/5/134584834/3325552.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kemeterotef.rf.gd/civ_6_deity_guide.pdfIn PDF document text
    • http://bitegovaduxigag.epizy.com/dormant_company_accounts_and_tax_return_guide.pdfIn PDF document text
    • http://jabepujun.epizy.com/batching_plant.pdfIn PDF document text
    • https://s3.amazonaws.com/kujesulad/parkinson_s_ppt_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jesidofefe/apheresis_guidelines_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/fajujiju/jupabasuwubakewagax.pdfIn PDF document text
    • http://vukigopi.rf.gd/70990301391.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_off0000dd30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD30 5408 bytes
SHA-256: 2396d8303b7dec6013ba4795440dd10771163f1d7c4229d41132f82586d42791
font_01_sfnt_off0000ef9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF9E 10276 bytes
SHA-256: 8032657534e76505f69d57da5f59fd8e335b6a8e0d642f5b9a843980f4bf875e

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