PDF malware analysis — malicious · 4458071e27e1e8b6

MALICIOUS

PDF

100.9 KB Created: 2022-03-29 20:20:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12

MD5: 92bb3df4c5a4b32b67e55a314d1e2eaf SHA-1: ef329c9dcb3d77e6f25755406c4bb9e1490ac182 SHA-256: 4458071e27e1e8b68277a3d0792dc3e228e5feee6a5d9625f1205d98b066c2dc

194 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and a large number of external links, many of which point to disposable hosting. This behavior is indicative of a link farm designed to manipulate search engine results or redirect users to malicious content. The ClamAV detection and ML classifier further support its malicious nature, likely as a phishing or malware distribution vector.

Machine Learning

Nyx PDF Classifier malicious score 0.9982

Heuristics 7

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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://loheb.co.za/YmrXLWy8?keyword=when%20did%20ancient%20history%20begin PDF link annotation
- http://www.iccet.org.tr/kcfinder/upload/files/70665543932.pdfIn PDF document text
- https://wexabegolorumad.weebly.com/uploads/1/3/4/3/134351445/a05a3f3a.pdfIn PDF document text
- https://adeptos.clevercloud.pt/images/items/files/rozajijon.pdfIn PDF document text
- http://www.ascondir.com.br/Gerenciador/kcfinder/upload/files/dutiposifek.pdfIn PDF document text
- https://epiphanych.com/images/file/samiwalisut.pdfIn PDF document text
- https://gigazafopojub.weebly.com/uploads/1/3/4/0/134040382/5789560.pdfIn PDF document text
- http://etabetasurvey.com/userfiles/files/11146574184.pdfIn PDF document text
- https://krainaogrodow.eu/zdjecia/fck/file/rexobomesi.pdfIn PDF document text
- https://xafadefuvabajil.weebly.com/uploads/1/3/0/7/130776308/fa2bf4907.pdfIn PDF document text
- https://ganajefij.weebly.com/uploads/1/3/4/8/134884795/xarunifonotewuk_zozekukasej_pomanedamu_fesatagodazu.pdfIn PDF document text
- http://sncelamel-dz.com/app/webroot/assets/js/kcfinder/upload/files/gigejijuvo.pdfIn PDF document text
- https://xixolediz.weebly.com/uploads/1/3/4/5/134513169/1561005.pdfIn PDF document text
- https://sandalyecenneti.com/wp-content/plugins/super-forms/uploads/php/files/bgoughspg344u5gms8j5qqc33i/95926629568.pdfIn PDF document text
- https://notutevetalopi.weebly.com/uploads/1/3/4/7/134715305/5942d3b111592a.pdfIn PDF document text
- http://www.artefuoricentro.it/js/lib/ckfinder/userfiles/files/80596523351.pdfIn PDF document text
- https://lepuzabokagat.weebly.com/uploads/1/3/4/3/134333079/gigufikufewulak.pdfIn PDF document text
- https://lenopeseku.weebly.com/uploads/1/3/4/0/134040497/lusivad-nedajodoj.pdfIn PDF document text
- http://www.w.radeton.cz/ckfinder/userfiles/files/34902411735.pdfIn PDF document text
- https://zaloposigino.weebly.com/uploads/1/3/0/7/130739621/tizimuwaneju.pdfIn PDF document text
- http://one9five.com/userfiles/files/tinujogewefefinakuvevigoz.pdfIn PDF document text
- https://busedulaxuxelo.weebly.com/uploads/1/3/1/3/131379622/wezupofojemi.pdfIn PDF document text
- http://www.federacja.krakow.pl/uchwaly/kcfinder/upload/files/41108885074.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00010786.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10786	17296 bytes
SHA-256: `477a9df64365a4545755f46628cc46c826eb13f48d246c0581784c52e100d1c9`
`font_01_sfnt_off000133da.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x133DA	16416 bytes
SHA-256: `cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336`
`font_02_sfnt_off00014a75.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x14A75	11040 bytes
SHA-256: `3ae31bf492bd24ba4a13f1d8919ede9b0202501a20f8cc8d3beb7c766f07685a`
`font_03_sfnt_off00016c67.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x16C67	10848 bytes
SHA-256: `a0ad9c85b663b4f6d3ac55937768fdd6d301b73adfedeecb98cef153bdbd4188`

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