Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a7bec6026bbee0b…

MALICIOUS

PDF

91.5 KB Created: 2021-06-10 00:03:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: f6f25292651662b6b96676737b9eb40e SHA-1: df5f8d3b5cdae7f016a53ddc2908c3f6857a016f SHA-256: 5a7bec6026bbee0b22e0c646fce77261a2d128233ab549ae31d90725dd58b5c8
126 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many pointing to disposable hosting services, suggesting a link farm designed to redirect users to malicious sites. The presence of external URIs and the 'link farm' heuristic strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://dafemum.ru/wb?keyword=orbit%20garden%20hose%20timer%20instructions PDF link annotation
    • https://dulewidojupetor.weebly.com/uploads/1/3/2/6/132695372/1874a48d4a715.pdfIn PDF document text
    • https://semefaperovupiw.weebly.com/uploads/1/3/4/5/134507497/bilizilanijavujili.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419452/normal_603780f580b35.pdfIn PDF document text
    • https://bipeforagenip.weebly.com/uploads/1/3/5/3/135307164/6e085fa41.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464996/normal_5ffba78d0d82a.pdfIn PDF document text
    • https://tufobedix.weebly.com/uploads/1/3/4/4/134431979/zunizadewiro.pdfIn PDF document text
    • https://xewezepi.weebly.com/uploads/1/3/0/8/130813550/3634302.pdfIn PDF document text
    • https://govewusig.weebly.com/uploads/1/3/0/9/130969429/8bc3eff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497372/normal_6063ea3730f51.pdfIn PDF document text
    • https://mupibidegupek.weebly.com/uploads/1/3/0/8/130874042/7509683.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409606/normal_5fd2ab2ca7f1f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470962/normal_60bb563c6ddc2.pdfIn PDF document text
    • https://zubowosusotikip.weebly.com/uploads/1/3/1/6/131637009/suwilefunow.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500186/normal_6032bf7c91d96.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://namikikis.pbworks.com/f/list_of_thesis_title_in_mathematics_education_in_the_philippines.pdfIn PDF document text
    • http://wurogakitibe.pbworks.com/w/file/fetch/144747456/mujhe_dushman_ke_bachon_ko_parhana_hai_lyrics_mp3_download_pagalworld.pdfIn PDF document text
    • http://wasazejis.pbworks.com/f/zagorekawima.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11fe707e-92bd-4017-8117-234b0727d8e7/vba_programming_jobs_uk.pdfIn PDF document text
    • http://tusawijer.pbworks.com/f/32542400557.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc1f6639-bab7-4be5-982e-2f4ad2578e4d/53339709422.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4758c3a-1f69-4550-970f-ca9b9f5b396f/39488414005.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/437857a1-fba0-4fa1-860e-a70345cb8aa7/90645561077.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ac18728-8e5e-4877-9293-aa4f786e0df3/standard_of_excellence_jazz_ensemble_method_recordings.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fcbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCBE 5488 bytes
SHA-256: c8d7bb2830eff6a609b8f21ddcfcbe3c85fddc9b56ba79b797f56e44d5e1e800
font_01_sfnt_off00010f37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F37 13448 bytes
SHA-256: 800b69ce2fce7b7eae0e659d357a1f0fa06b7d86dea5a38bc8756f19c3317272
font_02_sfnt_off00013877.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13877 10736 bytes
SHA-256: d3df5d822d5c00eca9477040a7176d97707fde96898cc92b71c3115ff20685f4