Malicious PDF — malware analysis report

Static analysis result for SHA-256 cceb7401989afb64…

MALICIOUS

PDF

80.1 KB Created: 2021-06-01 01:48:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fc43feef98e1be50e85510cf4eb7a9d5 SHA-1: bb716359f9950d266826983c2fdf386902bf0aa9 SHA-256: cceb7401989afb641e1efdca2c7e9e9cd19e9e2c52557219b7b08fd1c1d6adbc
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a large number of external links, many pointing to disposable hosting services, and includes a UTM term suggesting a lure for software downloads. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and numerous external links suggest it's designed to redirect users to malicious sites, potentially for downloading further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://infrive.ru/pbw?utm_term=corel+draw+x5+full+version+with+keygen+free+download PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4471096/normal_605cac764ea33.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448331/normal_5fd6f52cbcc70.pdfIn PDF document text
    • https://fojevatiseme.weebly.com/uploads/1/3/4/4/134400043/maroz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418991/normal_5fd349a6679a9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389821/normal_6006906003884.pdfIn PDF document text
    • https://gowuriked.weebly.com/uploads/1/3/7/5/137505597/2cc36f268cf0.pdfIn PDF document text
    • https://metekubop.weebly.com/uploads/1/3/1/4/131438843/2946120.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418000/normal_606b90114e2d1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373516/normal_6027952f4920a.pdfIn PDF document text
    • https://bamigabimav.weebly.com/uploads/1/3/1/6/131636977/jerikipa_mefapis_powuruz_zisuvemuzoro.pdfIn PDF document text
    • https://zojolutavalo.weebly.com/uploads/1/3/5/3/135345328/bf3d0f4d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372373/normal_600085b4f0623.pdfIn PDF document text
    • https://fagedanagaga.weebly.com/uploads/1/3/4/8/134876409/6d303e2443.pdfIn PDF document text
    • https://wapojopaboxijok.weebly.com/uploads/1/3/4/7/134747084/menurixulaxov.pdfIn PDF document text
    • https://gudifikopar.weebly.com/uploads/1/3/4/6/134627505/01a138.pdfIn PDF document text
    • https://xivibivo.weebly.com/uploads/1/3/4/3/134353446/ruduwun.pdfIn PDF document text
    • https://rezosegog.weebly.com/uploads/1/3/2/8/132814067/7e682f225dcc0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459057/normal_6023f4f2de5ea.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/01aabf0a-875c-4db8-a85b-7a0a7ac8cbfc/how_much_does_solidworks_flow_simulation_cost.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29e7c505-0ca7-4c81-80c7-c19de4e64fe3/y_que_paso_con_lunes_pelicula_completa_en_espaol_latino.pdfIn PDF document text
    • http://palixazoke.pbworks.com/f/xolosu.pdfIn PDF document text
    • http://kokoxudalux.pbworks.com/w/file/fetch/144428649/megupasudonozode.pdfIn PDF document text
    • http://didaneguk.pbworks.com/f/sogezaxebew.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0bd716a4-9ad3-4200-85a6-8d2c4f4113df/dnd_5e_hexblade_guide.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB60 3652 bytes
SHA-256: f645e3cca9a222508620063c94c5a2fc4336383c1648a6cdcd63e185a357787a
font_01_sfnt_off0000f870.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF870 5584 bytes
SHA-256: 98f5ee8a8b1648398912acb5067221e0fb16366e8814f81cba04880363a4e906
font_02_sfnt_off00010b8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B8A 11308 bytes
SHA-256: 25964fc7a8ce09fcd6cecf1027dd6c667a4ef86e06944460eeff19ec97d93c8e