Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3a67ec0f647814…

MALICIOUS

PDF

78.6 KB Created: 2022-03-28 18:51:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: e7f30ea1bd677df6dbe67142a38df84d SHA-1: 79a627997a67c7d89ced2a1055eaa22746d9d2e2 SHA-256: 4e3a67ec0f647814ec1dbee66ec9b490bd8357c8d459264e782c7a99ab09cf64
206 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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.
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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=juegos%20de%20del%20hombre%20ara%C3%B1a%20para%202%20jugadores PDF link annotation
    • https://dobopekajami.weebly.com/uploads/1/3/4/3/134314215/ea9384ddd1e5920.pdfIn PDF document text
    • https://vegekevovixo.weebly.com/uploads/1/3/1/4/131437475/muweferunujerex-zonosikofivab.pdfIn PDF document text
    • https://rulesamafov.weebly.com/uploads/1/3/4/7/134768786/7023844.pdfIn PDF document text
    • https://sivekilupikuma.weebly.com/uploads/1/3/4/4/134491743/tidexofijipatin.pdfIn PDF document text
    • https://sapesikunudob.weebly.com/uploads/1/3/1/3/131398489/2343375.pdfIn PDF document text
    • https://muwewixobajigu.weebly.com/uploads/1/3/4/3/134312624/2246675.pdfIn PDF document text
    • https://mokadipubozot.weebly.com/uploads/1/3/2/3/132303064/2aec9eef75d33f6.pdfIn PDF document text
    • https://rodusebit.weebly.com/uploads/1/3/0/8/130874039/5137478.pdfIn PDF document text
    • https://labekefetimobu.weebly.com/uploads/1/3/0/7/130739294/zozat.pdfIn PDF document text
    • https://durunefa.weebly.com/uploads/1/3/4/7/134712847/panitulidufow.pdfIn PDF document text
    • https://neluposu.weebly.com/uploads/1/3/4/3/134369170/movagetoba.pdfIn PDF document text
    • https://mewopufi.weebly.com/uploads/1/3/4/2/134265659/9401783.pdfIn PDF document text
    • https://vejazisiji.weebly.com/uploads/1/3/0/9/130969480/nojebo-xifejowum.pdfIn PDF document text
    • https://tafajasezo.weebly.com/uploads/1/3/4/3/134312542/fexeperafaxuvi.pdfIn PDF document text
    • https://pixijitawe.weebly.com/uploads/1/3/4/5/134593468/6975720.pdfIn PDF document text
    • https://bagosuberabuvi.weebly.com/uploads/1/3/4/6/134681771/9665331.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b6d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6D7 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0000cd76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD76 18252 bytes
SHA-256: 2c403466e86884f5a87d2b5a7006f30bd594486a1a78b5f4517eab10f5c26dfc
font_02_sfnt_off0000fb80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB80 11232 bytes
SHA-256: bc9220ae49cab16de1bb9653a393d47209d9696b72be3d4931bd02a615768fd2
font_03_sfnt_off0001153c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1153C 16156 bytes
SHA-256: 1fa1e075a08457e81fc7ef2ce7cc9dab886abd90bca117e51df4019466f3cfe5

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