PDF malware analysis — malicious · 4e38b82c1134756b

MALICIOUS

PDF

72.1 KB Created: 2022-04-07 14:41:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19

MD5: e8bf125df7d4f0fac2fe4da1f981fa5d SHA-1: 4746592725bbd59a051317a3e95266a7439d4032 SHA-256: 4e38b82c1134756bef2eb4cb81d247b9bc1aeee58c6bb5d103a878aa928da01f

206 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9979

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://lazav.co.za/YmrXLWy8?keyword=integrated%20chinese%201%20character%20workbook%20pdf PDF link annotation
- https://javodamujuwevef.weebly.com/uploads/1/3/4/4/134446411/jopiganevavekexeluz.pdfIn PDF document text
- https://rijomedoniki.weebly.com/uploads/1/3/5/3/135399424/1410d7.pdfIn PDF document text
- http://ressourcengarten.de/azubi/userfiles/files/suruluzifefajejexova.pdfIn PDF document text
- https://kovumagamu.weebly.com/uploads/1/3/4/5/134578336/a92f65e72ee8.pdfIn PDF document text
- https://derakudo.weebly.com/uploads/1/3/4/2/134266069/5131ef9c7becf.pdfIn PDF document text
- https://nugakowizadofo.weebly.com/uploads/1/3/0/7/130738823/9989391.pdfIn PDF document text
- https://fagoloda.weebly.com/uploads/1/3/4/6/134649735/6102654.pdfIn PDF document text
- https://jawowigo.weebly.com/uploads/1/3/0/7/130774982/0cce57.pdfIn PDF document text
- https://kaxalosenawa.weebly.com/uploads/1/3/4/5/134576513/kuduruburagasi.pdfIn PDF document text
- https://tilodipa.weebly.com/uploads/1/4/1/3/141389080/c56936ec8911.pdfIn PDF document text
- https://lamaisonducoeur.ca/upload/editor/file/kokorenajefoduvodutofa.pdfIn PDF document text
- https://tovepeluzon.weebly.com/uploads/1/3/4/3/134385389/2070753.pdfIn PDF document text
- http://www.pataniforum.com/admin/jquery/ckfinder/userfiles/files/labep.pdfIn PDF document text
- https://roguxewotare.weebly.com/uploads/1/3/4/3/134319265/kitetax.pdfIn PDF document text
- https://dugubutufafug.weebly.com/uploads/1/3/0/7/130775350/ceae486c28b366c.pdfIn PDF document text
- https://kuwuxezito.weebly.com/uploads/1/3/6/0/136090431/jaripa.pdfIn PDF document text
- http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/ee83af31a725cf7f5a928f181c4a335d/85314036226.pdfIn PDF document text
- https://tijaworiluwulu.weebly.com/uploads/1/3/4/3/134363233/gefurufusepapug-dadakug-ligemito-vumik.pdfIn PDF document text
- https://xopadubimedo.weebly.com/uploads/1/3/4/8/134858850/luwun-nemif.pdfIn PDF document text
- https://pujuwofox.weebly.com/uploads/1/3/4/8/134882524/57540e2907e.pdfIn PDF document text
- https://juwatupajevofa.weebly.com/uploads/1/3/4/7/134705275/jizorenefo.pdfIn PDF document text
- https://suruvimaweluza.weebly.com/uploads/1/3/4/1/134131456/4985183.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000b237.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB237	18000 bytes
SHA-256: `37612dabdc776ae6a11448ca1de8df952732f301856fd44a78165d382240f3c0`
`font_01_sfnt_off0000e0cb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE0CB	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off0000f8e2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF8E2	11172 bytes
SHA-256: `1fc7c3d5d9844ea7333aecff56c0866cf3290c2a81e69c670c33916a6bc92a3d`

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