Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e267dd1b8d95830…

MALICIOUS

PDF

85.0 KB Created: 2021-03-22 01:47:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: ae08be49b3e06ad901b41689df9f5a6e SHA-1: afc5184ef192a4627594960cbf7ca1e29cb6384f SHA-256: 8e267dd1b8d95830da60efcebd3be75cde0d12f04611c1ee5dd7fc8db57f5683
186 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains a large number of external links, many hosted on disposable domains, suggesting it functions as a link farm designed to redirect users to potentially malicious content. The embedded URLs and the document's structure point towards a phishing or SEO manipulation tactic.

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://leonvi.ru/award?keyword=types+of+drag+in+aircraft+pdf PDF link annotation
    • https://cdn.sqhk.co/mafowixodi/g1ciaha/44329399803.pdfIn PDF document text
    • http://degimogug.mypressonline.com/pejewarubulupagobiwapel.pdfIn PDF document text
    • https://cdn.sqhk.co/vavetiset/pMi0mtz/dressing_table_images.pdfIn PDF document text
    • https://cdn.sqhk.co/fijiwomeza/Vhjidgc/85093330753.pdfIn PDF document text
    • https://cdn.sqhk.co/kixobaza/Mibmsbt/9456274287.pdfIn PDF document text
    • http://dududuw.mypressonline.com/how_to_set_the_citizen_eco-drive_skyhawk_watch.pdfIn PDF document text
    • https://cdn.sqhk.co/wajuletixex/dyRggRR/small_simple_modern_house_minecraft.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://9907981b-0bc7-4fd3-a434-169f7cdadf42.filesusr.com/ugd/575363_a504bfe1c5514037840015363b293b45.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/80511f8c-53c7-4f36-a757-f8767a7dde9b/angles_in_polygons_investigation_tes.pdfIn PDF document text
    • http://wufagezigedo.onlinewebshop.net/toxic_algae.pdfIn PDF document text
    • https://19972ee8-34f0-4900-8009-9f590161cd02.filesusr.com/ugd/64db51_da824c5727204384aafcf2202a72c24c.pdf?index=trueIn PDF document text
    • http://nowimirozox.atwebpages.com/auditor_general_report_petrojam.pdfIn PDF document text
    • http://vawerudarasikow.myartsonline.com/apresentao_da_empresa_para_clientes.pdfIn PDF document text
    • https://78f5967e-1348-44d0-b43d-4fba71d4c3e7.filesusr.com/ugd/a94f6a_3ec294539715403caa02489f314f2b1e.pdf?index=trueIn PDF document text
    • http://vidugozu.atwebpages.com/84378973134.pdfIn PDF document text
    • https://8ea4a4fb-2859-49e6-8c89-66ed49166bb4.filesusr.com/ugd/0088c1_ad87b7da5b8a4169a169757ccc422b28.pdf?index=trueIn PDF document text
    • https://8767aa75-4bd5-48c0-94ca-24e983238001.filesusr.com/ugd/debdc1_f0ba5a5552814c38a44c969e247a83c1.pdf?index=trueIn PDF document text
    • https://af431a04-9ebc-4ea4-a98d-45e4ffbfad14.filesusr.com/ugd/485053_9fb934a87c67487496039a9c47aacfef.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/5bf8268a-ad7a-4eff-96d6-b6226560db03/nimaxifode.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f6e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6E9 5340 bytes
SHA-256: 7e740cac59b426d0e2513030181cb2ecc6d4d352e100a7323f9dcef2d270ea4a
font_01_sfnt_off00010932.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10932 12100 bytes
SHA-256: 83f7c5f59ad1a187a07f808cf3c282ddde5ad20ca7539915de5b4a7c3c09d347
font_02_sfnt_off00013224.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13224 16064 bytes
SHA-256: fe122861e8158e69f770b537b34ebcea90de60b8d6f6493873744392b7767c47