Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d8c96f518287372…

MALICIOUS

PDF

68.5 KB Created: 2021-02-17 04:48:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 8fb595be564a7cc7c4a0ea410c22f8c2 SHA-1: 0305638b5f8241626d830e01dc2080c019043daa SHA-256: 2d8c96f518287372e7069fe17e007d55d9c33465969961f33e4a962fb421e3d0
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/wb?keyword=hoover%20whole%20house%20elite%20upright%20vacuum PDF link annotation
    • https://kesakoti.weebly.com/uploads/1/3/1/0/131070149/pumenusogajufejopeb.pdfIn PDF document text
    • http://daating19.site/block_strike_pc_20207ugkc.pdfIn PDF document text
    • https://cdn.sqhk.co/noxuluni/vfaDid0/71081060372.pdfIn PDF document text
    • https://cdn.sqhk.co/votijavos/eFibidh/auto_dealership_tycoon_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/pivugisaxap/hbLwijp/masshealth_bmc_healthnet_plan_community_alliance.pdfIn PDF document text
    • https://cdn.sqhk.co/tamaladafa/jjIhcib/pofilutoworizefasuxori.pdfIn PDF document text
    • https://cdn.sqhk.co/jivonotiso/ghgihqH/jusuviriko.pdfIn PDF document text
    • https://cdn.sqhk.co/zowonefaso/fjhicic/strategic_management_teaching_resources.pdfIn PDF document text
    • https://cdn.sqhk.co/xanuramalu/eopzkhf/10356441114.pdfIn PDF document text
    • http://vejaginupivedez.iblogger.org/what_is_the_visual_cliff_experiment.pdfIn PDF document text
    • https://lewuroluloxujul.weebly.com/uploads/1/3/4/6/134678017/fizisesukepewep.pdfIn PDF document text
    • https://cdn.sqhk.co/wujozuzewed/hb6Y8Gn/gevev.pdfIn PDF document text
    • https://siburiwefud.weebly.com/uploads/1/3/1/3/131381052/tetebokuwug.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sawuliwinupunud.epizy.com/edmodo_teacher_guide.pdfIn PDF document text
    • http://lovopezabima.epizy.com/applied_computing_and_informatics_scopus.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_off0000ca32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA32 5460 bytes
SHA-256: a966e26097ca3ded550965541926b5944c1362b1fd0a183c560aaeeb4f261161
font_01_sfnt_off0000dcaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCAF 11996 bytes
SHA-256: 8f5a520148cb2878643f8722566ce31ae481ab489d194923af55bc8c4322eea2