Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d4a1d3386f0628d…

MALICIOUS

PDF

73.7 KB Created: 2021-06-01 14:50:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 027153bf710ee85988e9bf5a802db5ac SHA-1: b6787a2c8078d2199a2b72b6e0a9443caf70b3c0 SHA-256: 7d4a1d3386f0628dde634f7c2f8217b46f6031c853b4c2c990422b77e10c1897
126 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, many of which point to link farms and disposable hosting, suggesting a phishing or malicious redirection attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. Although no scripts were directly extracted, the PDF structure and embedded links are indicative of a malicious document designed to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://pistant.ru/pbw?utm_term=ad+astra+movie+download+in+hindi+480p PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4369771/normal_5ff1ad045dcff.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413714/normal_5fc6303fd9f42.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460243/normal_603aee3679597.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463010/normal_604ce8485b0e3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373508/normal_5fe6cafa9a40e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404497/normal_600f1e9ed692d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389604/normal_606447f79beae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487903/normal_605f8ebddcf42.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419235/normal_6049e45c2ca04.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gitefov.pbworks.com/f/jackbox_party_pack_7_mac_download.pdfIn PDF document text
    • http://nefusim.pbworks.com/f/peter_cardon_business_communication_3rd_edition.pdfIn PDF document text
    • http://funinupun.pbworks.com/w/file/fetch/144411804/podebokaxebe.pdfIn PDF document text
    • http://moxulolo.pbworks.com/f/sylvia_plath_ariel_poems.pdfIn PDF document text
    • http://lekuzax.pbworks.com/w/file/fetch/144419187/do_blue_dye_tests_always_have_a_faint_line.pdfIn PDF document text
    • http://jesababa.pbworks.com/w/file/fetch/144413952/how_to_get_macro_on_agar.io_ipad.pdfIn PDF document text
    • http://xojifot.pbworks.com/f/what_is_the_nutritional_value_of_fresh_beets.pdfIn PDF document text
    • http://banusiv.pbworks.com/w/file/fetch/144453372/microsoft_word_2013_exercises_for_beginners.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5400b17-71b0-4368-9857-a7cb0d605dcb/creative_and_critical_thinking_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0837a4a2-d5a8-43d0-a414-8732e1a52312/silence_becca_fitzpatrick_read_online.pdfIn PDF document text
    • http://mikabipi.pbworks.com/w/file/fetch/144432459/how_do_you_redeem_a_code_on_xbox_one.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7edb23f0-5638-4c76-8fa1-f2c320d561c2/buwifawudefegemib.pdfIn PDF document text
    • http://fevawigo.pbworks.com/f/27487568880.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e1a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1A8 5764 bytes
SHA-256: 9d9b455571e0a0069251f337af084185ad43bad61c0eb581b833a8bdeeb10996
font_01_sfnt_off0000f535.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF535 10660 bytes
SHA-256: 228c8816662e0fefa3095bfdac0d3442a9da72d5d127e4340efbc7391eda29d1