Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fb0132882a8e491…

MALICIOUS

PDF

76.9 KB Created: 2021-04-04 09:53:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fdb2d5d0f04b463ed58328106f59b654 SHA-1: a9f1bc805a3a117943fe3638c4d1dd6bd3530825 SHA-256: 6fb0132882a8e491d59ecc5f2fc340259bb19bb4e460286712c735807ceb68bd
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to disposable hosting and are part of a link farm, indicating a likely attempt to redirect users to malicious sites. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to exploit users through deceptive links.

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://kuzutuzo.ru/strik?utm_term=ipega+pg-9023+bluetooth+controller PDF link annotation
    • http://kyrgyztours.com/76751372069agtad.pdfIn PDF document text
    • https://s3.amazonaws.com/dowesitobuga/capital_gains_tax_computation_sheet.pdfIn PDF document text
    • http://gosugas.getenjoyment.net/kuxedifikub.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371790/normal_601f0cdd0bde4.pdfIn PDF document text
    • http://rewita.fun/sewatujajekutimenopatozis1a1ms.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410214/normal_5fcf32fb7f3bb.pdfIn PDF document text
    • http://kvrovk.xyz/79057129436qx59w.pdfIn PDF document text
    • http://zokugorevat.mywebcommunity.org/ncert_maths_class_11_solution.pdfIn PDF document text
    • http://tazizinujumijoj.mywebcommunity.org/automorphism_group_of_a_graph.pdfIn PDF document text
    • http://lizowaw.scienceontheweb.net/xobol.pdfIn PDF document text
    • https://s3.amazonaws.com/kegubinefuda/oxygen_not_included_cheat_sheet.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://64e18f06-8a0e-4dc1-8427-9dd81b4bff36.filesusr.com/ugd/baa514_14e2334520924dada0450f997ae33d7b.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/d16e604d-4916-4ba6-aeff-01777769a103/plantronics_voyager_legend_charging_case_instructions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9edccc7-dc8f-4f51-82c7-49fe23b80e59/craftsman_table_saw_motor_replacement.pdfIn PDF document text
    • http://miganuvag.myartsonline.com/kujodazutotesokotavupubi.pdfIn PDF document text
    • https://c245485c-e1a4-4c5a-9a2a-c465a95e53c8.filesusr.com/ugd/25f824_5e8cb1ea966840ea86d1daadd1005ed5.pdf?index=trueIn PDF document text
    • https://2e4d99de-9d37-4ce2-abd5-0bbccafdbe51.filesusr.com/ugd/33a2e4_65e00bd3e9b94b8d89a28abe8dc988b4.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc2e0af8-ce23-467f-aeb0-6b134b912008/logitech_x-530_software_download.pdfIn PDF document text
    • https://caf0f927-206f-4b4e-aa34-0dd3da53679b.filesusr.com/ugd/83d902_857fcfe3fb88414d85b0669672d0dce9.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 8

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_off0000df31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF31 5720 bytes
SHA-256: ab0b24b88aaf18961c83dd10c87f7fea5a0d3a5fb8d01f9975cc19398f67e491
font_01_sfnt_off0000f2ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2AB 22288 bytes
SHA-256: 7453ccc9e133c04ecb3966295bf62e6fa4e059749f9101ba678ea03b363ad516

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