Malicious PDF — malware analysis report

Static analysis result for SHA-256 4aff716091c2b796…

MALICIOUS

PDF

43.7 KB Created: 2020-10-26 17:59:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-06
MD5: 357a2a0c6cbdfe2daef154921e90e1a5 SHA-1: a68c99547e2f76af0e8066036e4d269df5fa29d8 SHA-256: 4aff716091c2b7967ffcf65e7213e431578e0c8961865a64229871d373d82efb
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 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://ttraff.ru/123?keyword=payroll+procedures+manual+template+australia In PDF document text
    • https://kawuloxegulul.weebly.com/uploads/1/3/4/3/134389306/424ab2ec23e9d13.pdfIn PDF document text
    • https://beperiguvo.weebly.com/uploads/1/3/4/3/134320750/d10b8caee.pdfIn PDF document text
    • https://tazeviguso.weebly.com/uploads/1/3/4/3/134339516/986ec2187a374.pdfIn PDF document text
    • https://pebiname.weebly.com/uploads/1/3/1/4/131453048/zaxipov-butanati-tajunefali.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374177/normal_5f8decd5003f2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367290/normal_5f8aa01c7103e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368788/normal_5f8ab140ac234.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/215a443f-8ba5-4b08-9c95-6bb5ef0a3367/wukufibeketumeguledogisim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5fbbcb8f-0518-4900-8248-492568489b9a/lifobiv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f47f5ce-15fc-4812-85f7-dd5b454adcf7/xaxumimobukoxuzek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d0780dd-ba8e-47dc-8b06-06714f579962/85444901562.pdfIn PDF document text
    • https://s3.amazonaws.com/towakog/koduzaripigivak.pdfIn PDF document text
    • https://s3.amazonaws.com/sivanira/pan_card_date_of_birth_affidavit_format.pdfIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/39007668259.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/raniwokopatofaralap.pdfIn PDF document text
    • https://s3.amazonaws.com/bubisifapagefe/investigacion_en_psicologia_clinica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/0344/3862/files/30986622297.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/2378/9991/files/wuruzopipijadise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/3948/4823/files/zakuwasirezog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/6050/1921/files/zubesos.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_off00006b68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B68 5320 bytes
SHA-256: 7999151387f08e775878d3324c6d285fbee691781c9a4d9596c9d7dc5fefe319
font_01_sfnt_off00007d6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D6B 10616 bytes
SHA-256: 7757d718a46e7160610cdd63f17713722f9f65b9cfe9a84bd22adbec4a0478e8

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