Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4fea73b97850c5a…

MALICIOUS

PDF

90.8 KB Created: 2022-03-29 08:55:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-02
MD5: aad71bafbfc05194c0cee36e5008e191 SHA-1: d295902032192bbda2a0398c692c6c372bf9c795 SHA-256: a4fea73b97850c5aae9ffc6a154b21cb1ef0a86ab4813148db098c3fa11f8b64
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://wirut.co.za/YmrXLWy8?keyword=moultrie%20hunting%20camera%20reviews PDF link annotation
    • https://viwodiviwowo.weebly.com/uploads/1/4/1/2/141250627/4496785.pdfIn PDF document text
    • https://fozabenuguze.weebly.com/uploads/1/3/4/6/134685739/xifebotijolokikojip.pdfIn PDF document text
    • https://vuzowukuz.weebly.com/uploads/1/3/0/8/130814197/kusopunemilodug.pdfIn PDF document text
    • https://mizovitima.weebly.com/uploads/1/3/4/2/134266674/dokuzewebapamimojuja.pdfIn PDF document text
    • https://firajapototirop.weebly.com/uploads/1/3/1/4/131452771/6688354.pdfIn PDF document text
    • https://jepixisus.weebly.com/uploads/1/4/1/2/141259246/wadosisomosifap.pdfIn PDF document text
    • https://wokonupojelofa.weebly.com/uploads/1/3/5/3/135351156/3470946.pdfIn PDF document text
    • https://xoregofejaba.weebly.com/uploads/1/3/4/6/134651656/kexelufele.pdfIn PDF document text
    • https://xijofufakeziti.weebly.com/uploads/1/3/1/3/131380729/e458d40564b2da.pdfIn PDF document text
    • https://xebuvimujutil.weebly.com/uploads/1/3/6/0/136050287/vejososajexir_bonutozabu_zovivedatuluku.pdfIn PDF document text
    • https://nifilova.weebly.com/uploads/1/3/0/7/130740060/xuvitig.pdfIn PDF document text
    • https://jumuvive.weebly.com/uploads/1/3/0/7/130776409/aab8fa.pdfIn PDF document text
    • https://tifizadidamoz.weebly.com/uploads/1/3/1/3/131378816/3494296.pdfIn PDF document text
    • https://guxumexowe.weebly.com/uploads/1/3/3/9/133999944/jofere-kodepagekoj.pdfIn PDF document text
    • https://zegusuvi.weebly.com/uploads/1/3/4/7/134738546/dovil-zavafifijenisez-jazikavesuxan.pdfIn PDF document text
    • https://sawagifavemon.weebly.com/uploads/1/3/0/7/130775832/8282869.pdfIn PDF document text
    • https://kowizonijate.weebly.com/uploads/1/3/5/9/135991151/7630515.pdfIn PDF document text
    • https://nopuwilimo.weebly.com/uploads/1/3/4/4/134490360/1133750.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000fe37.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000fe37.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fe37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE37 17672 bytes
SHA-256: 0320d82fca9f33f5a738046a98552eab57af342ba8c3f32ce427af982f8b9144
font_01_sfnt_off00012cf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12CF4 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00014398.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14398 10920 bytes
SHA-256: 9efa6164d691244b368eff76ca0483007bb6c4aac5fd42f9c47cb67b09896e34

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