Malicious PDF — malware analysis report

Static analysis result for SHA-256 d965f1ed7760230c…

MALICIOUS

PDF

79.0 KB Created: 2021-03-16 12:46:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d3df6429719008ca5c839de72310a1ed SHA-1: b4b055db66ff242b94874a6664b94c5bfdcecfd7 SHA-256: d965f1ed7760230c6877268660ad3c1b5d636e748b9623a182e3bb46f66c9687
246 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical finding for brand-impersonation credential phishing related to Facebook. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to redirect users to malicious sites. The ML classifier also strongly indicated maliciousness. The primary attack pattern involves directing users to phishing pages via these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://fapopadiwa.weebly.com/uploads/1/3/1/4/131438416/bb0d181b.pdf.
  • 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://jacksth.ru/award?keyword=allegory+of+the+cave+by+plato+pdf PDF link annotation
    • http://xifelaseb.22web.org/ar_blue_clean_ar383.pdfIn PDF document text
    • https://fapopadiwa.weebly.com/uploads/1/3/1/4/131438416/bb0d181b.pdfIn PDF document text
    • https://s3.amazonaws.com/mosezavor/soda_water_nutrition_information.pdfIn PDF document text
    • https://sunudufexune.weebly.com/uploads/1/3/0/8/130874439/futaxigavibofo-wokesexizegoda-wufixogoguwabe.pdfIn PDF document text
    • https://s3.amazonaws.com/jedadokuti/wordpress_login_page_custom_logo_not_showing.pdfIn PDF document text
    • http://duxogesubuz.22web.org/reporte_buro_de_credito_empresas.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pexaniruvuwuwe.rf.gd/dinumunoripikox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74623447-6fd3-493e-9f77-2023983565be/how_to_figure_out_angles_of_a_rhombus.pdfIn PDF document text
    • http://mevalegija.rf.gd/tipixovetajepabuvezu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ca3c81e1-8aed-415d-8f55-fa02472caf10/how_to_reset_yamaha_htr_6130.pdfIn PDF document text
    • http://ridezajumoso.epizy.com/vibiromuxigut.pdfIn PDF document text
    • http://wawupipazuxalu.epizy.com/97963035678.pdfIn PDF document text
    • http://jonulixax.epizy.com/degilatizatuxatalaramur.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5f72e5a-ef6e-4de2-a263-399dd6edf0b2/93380683839.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7b39093-8afb-4b89-8c22-061968850c4c/gugened.pdfIn PDF document text
    • http://zevofelajasuz.epizy.com/megazegesobikot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2be61f2f-cc43-4d7b-9803-1f92a70ac779/20089152653.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/753a89f7-3715-4b7e-875a-2f620c6a50e4/ruger_sr22_review_hickok45.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/21e8d79e-017e-40cb-a766-cc23dd498ab3/walgreen_digital_thermometer_instructions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2408e75-907e-4e5f-9206-00a0d12a367a/biology_book_chapter_2_the_chemistry_of_life.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_off0000f82a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF82A 5532 bytes
SHA-256: d233d1281e77ef3be7cc68ddd28a80732efcc50a494e049c9a67c263837d9486
font_01_sfnt_off00010b02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B02 10464 bytes
SHA-256: 41732253628aa17af310d3b0b67f8934a8131fd389da749cadc96df5e99113e5