Malicious PDF — malware analysis report

Static analysis result for SHA-256 18a711ff3e9cfa1c…

MALICIOUS

PDF

77.5 KB Created: 2022-04-06 23:11:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-10
MD5: fe60804ec598ff8db83f8214a9f561a5 SHA-1: 98b47ce5fbc4a8de892ffd0ea4310f13262b7263 SHA-256: 18a711ff3e9cfa1c9743ac68ea513320995a421ea2da52d2f3e1e4a36d47bfe9
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://glaskunstcentrum.nl/images/file/88957063900.pdf In PDF document text
    • http://studiopassarotti.it/userfiles/files/91545368021.pdfIn PDF document text
    • http://zhengfutz.com/v15/Upload/file/2022314448143112.pdfIn PDF document text
    • https://rovajomodurimof.weebly.com/uploads/1/3/4/7/134719391/saxibozagutaj-rukuf-xotosutaxowax.pdfIn PDF document text
    • https://jefabogab.weebly.com/uploads/1/3/1/6/131636769/kuwoxejinumese-nadevuv-jivimofakiposul.pdfIn PDF document text
    • https://pimesawugure.weebly.com/uploads/1/3/0/7/130776266/16ad9a9.pdfIn PDF document text
    • http://yuhongzg.com/d/files/34709245839.pdfIn PDF document text
    • https://kerobasoxegetun.weebly.com/uploads/1/3/4/0/134017970/4153754.pdfIn PDF document text
    • https://gikilona.weebly.com/uploads/1/3/5/9/135966600/8303582.pdfIn PDF document text
    • https://sazizilas.weebly.com/uploads/1/3/0/8/130874530/1429002.pdfIn PDF document text
    • https://nekarima.weebly.com/uploads/1/3/4/8/134876173/jojukugaluw.pdfIn PDF document text
    • https://putijixata.weebly.com/uploads/1/4/1/2/141253269/2884679.pdfIn PDF document text
    • https://vaxinukosiju.weebly.com/uploads/1/3/4/6/134625250/wimojizo.pdfIn PDF document text
    • https://jotajawe.weebly.com/uploads/1/3/1/6/131606146/togebolofojiju-putorapeti-xodakegivizumo-dozijimafu.pdfIn PDF document text
    • https://isped.cz/kcfinder/upload/files/17899556490.pdfIn PDF document text
    • https://zovewobaj.weebly.com/uploads/1/3/4/7/134719332/janun-pirox.pdfIn PDF document text
    • http://resortcrimea.com/ckfinder/userfiles/files/kediwisumajufagetek.pdfIn PDF document text
    • https://topifovav.weebly.com/uploads/1/3/4/5/134595147/patudugarakazo_poguvewovupeb_pojezoronevu.pdfIn PDF document text
    • https://colod.co.za/YmrXLWy8?keyword=html5%20text%20field%20validationPDF link annotation
    • 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_off0000c809.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c809.bin)

Related samples 3

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_off0000c809.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC809 17464 bytes
SHA-256: 0852b944a648a1dd0fe9090c01e50cc3b2740cc3ce364cc567096bc48d71f160
font_01_sfnt_off0000f5f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5F7 10540 bytes
SHA-256: dd6a8dc142f19efe326d6e7412ddef39a76f9094631cb3d752137f5bb2124c59
font_02_sfnt_off00010df8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DF8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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