Malicious PDF — malware analysis report

Static analysis result for SHA-256 003c9be3e637bf7d…

MALICIOUS

PDF

67.0 KB Created: 2021-03-16 16:08:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 438d1c94228ca691a02cadf220f2b0cd SHA-1: 56ed5106ee88a2df5d16108b4888ccd74480393a SHA-256: 003c9be3e637bf7dbe82bf1fb1f370d53d9c50dda493fd15be13b5f13dd05742
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, with heuristics indicating it functions as a link farm on disposable hosting. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a malicious document designed to redirect users to potentially harmful sites.

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://seumenha.ru/wix?keyword=gifs+de+boa+noite+com+musica+gospel PDF link annotation
    • http://gmetry.online/m_audio_keystation_49_mk3_softwareb88fb.pdfIn PDF document text
    • http://verifedform.com/what_is_dsc_fault_fordmo58c.pdfIn PDF document text
    • https://difegalit.weebly.com/uploads/1/3/2/6/132681294/tikebajewutolipi.pdfIn PDF document text
    • http://chelobaka.space/kobepesinugapupufesijik94p78.pdfIn PDF document text
    • http://udilische.club/jibipegikafarumamapumi83c.pdfIn PDF document text
    • http://idealica-tufficiale.website/construction_technology_notesupjeu.pdfIn PDF document text
    • https://s3.amazonaws.com/kalanejaxutilif/jikudorikabudenajutipaxar.pdfIn PDF document text
    • https://tevufipe.weebly.com/uploads/1/3/1/6/131606546/roposifenu.pdfIn PDF document text
    • https://s3.amazonaws.com/guxosa/30516980938.pdfIn PDF document text
    • https://s3.amazonaws.com/jokotaziweluge/35118811707.pdfIn PDF document text
    • http://on-arenas.com/bundelkhand_university_online_form_2019mybwx.pdfIn PDF document text
    • http://emirofficialzm.com/viral_myositis_treatment_guidelinesu8r4x.pdfIn PDF document text
    • http://lnstagramoriginal.com/tekken_3_pc_game__30mbid3jd.pdfIn PDF document text
    • http://helplnstagramcontact6088758.com/firivixxgkcu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://c6f55193-7475-4343-97dd-33cb3b141b6a.filesusr.com/ugd/808d8c_f983b387392b4ff185cfe2b30b64db5d.pdf?index=trueIn PDF document text
    • https://d45380bd-a93d-4ef2-b2bd-4c7806d1f6db.filesusr.com/ugd/5d2cf3_2618da6c31fd4b4c84a84c7de72a807e.pdf?index=trueIn PDF document text
    • https://527ed197-5826-4432-9c89-449afa9d705e.filesusr.com/ugd/65ef70_facaf6fe53f3450cab761b1dc5b99299.pdf?index=trueIn PDF document text
    • https://0071e0df-bf19-4860-a176-ffcbf6e54146.filesusr.com/ugd/c34eac_e4600edf6be04796a13a09de6f971fbd.pdf?index=trueIn PDF document text
    • https://923a8ca3-316b-4844-b38f-9bc955ad4852.filesusr.com/ugd/312e0e_7ee23aa0d39b4e899e25e216673112c8.pdf?index=trueIn 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

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c677.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC677 5552 bytes
SHA-256: 5a6a569bb2cc83c2d063cc13ab14df99e338f72a1afaa4df24ae309b842c73a4
font_01_sfnt_off0000d94d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD94D 11792 bytes
SHA-256: 710dbbbcf1e84b458a13bb0c8576cd13f56e1d0499c924abd8aae86d3de0d496

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