Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d8586f10c663d7…

MALICIOUS

PDF

54.3 KB Created: 2020-10-28 09:41:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-28
MD5: 2fb14edc777bd2e36eee3656389ffd27 SHA-1: 573035f98ae6f2f3fcadd8bb74db41a5d120c2da SHA-256: c5d8586f10c663d776b85ee91678b689722cc7f17bba74282ede13cda2a569fa
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ggtraff.ru/wb?keyword=java%20netbeans%20guide%20pdf In PDF document text
    • https://kivuligob.weebly.com/uploads/1/3/0/8/130874143/3065786.pdfIn PDF document text
    • https://xifobosakup.weebly.com/uploads/1/3/2/8/132815359/44eb3f98510ed50.pdfIn PDF document text
    • https://jarapitoxedomel.weebly.com/uploads/1/3/1/4/131437170/gafasadigujudu_fiwodedare.pdfIn PDF document text
    • https://sepikupi.weebly.com/uploads/1/3/0/7/130738949/9886217.pdfIn PDF document text
    • https://mixorone.weebly.com/uploads/1/3/1/4/131438240/bbf4380.pdfIn PDF document text
    • https://gozekukapitob.weebly.com/uploads/1/3/4/4/134443516/tamopejut.pdfIn PDF document text
    • https://xonuveviriniw.weebly.com/uploads/1/3/0/7/130738603/palanutopirowigupis.pdfIn PDF document text
    • https://redunexodozik.weebly.com/uploads/1/3/0/8/130814050/6097937.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374857/normal_5f96f6865049a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369654/normal_5f8d6955b5efb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385633/normal_5f8d3cb0eed51.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/36478c3e-fba1-4c61-b3ba-35b845fa6979/fipazelega.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ba14fbe-057c-4e08-bca7-1e26c99d12c6/xabikovixesokenidawodatun.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e19d2355-2fe8-43f6-83a1-89b0093ba69d/1_estela_corrida_flagler_playa_fl.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/8758/3126/files/xperia_xz1_compact_android_9.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3816/1561/files/mueller_hinton_agar_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/5856/0661/files/quadratic_equations_worksheet_class_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6564/6999/files/dujuveliwegetafogumi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/3977/5646/files/glencoe_health_book_answer_key.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef2ec6d2-e2ec-45d9-845f-d99ff09f062c/lulinugagukoji.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/baf58427-0600-4a6c-81cc-f2840785aed0/3671820285.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b4efd12-0fff-4919-b020-bbabb80bc7d8/79767496414.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33b0bbd0-3011-4e4f-bbb6-8b1fdad0ca8f/jerafumarunodadejo.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_off00009368.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9368 5272 bytes
SHA-256: bd2e9d279fe8235c70a6a4e178a776ac759be7f174f0a10359153bbdcf0eaabd
font_01_sfnt_off0000a568.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA568 11336 bytes
SHA-256: 6c101479141400eb93ea94443922b498fc1c6db21887f72bb45bc05dae6a121f

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