PDF malware analysis — malicious · c5df3c7f3bb3235d

MALICIOUS

PDF

97.5 KB Created: 2022-03-28 01:34:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28

MD5: 58eb214dab20d875ea35db5dea563839 SHA-1: 339a329ace6f840f846062c50c10dd1f8e80e6b1 SHA-256: c5df3c7f3bb3235dd85394534676e418f1948dd0a57576a5fc0e378eda139735

226 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9983

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.
MFA / one-time-code harvesting lure high SE_MFA_LURE

Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
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://yubit.co.za/YmrXLWy8?keyword=manual%20instrucciones%20singer%20promise%201409 PDF link annotation
- https://nelejezubifub.weebly.com/uploads/1/3/1/4/131406077/d167da888b27.pdfIn PDF document text
- https://kupejuzog.weebly.com/uploads/1/3/1/6/131637034/6035670.pdfIn PDF document text
- https://vutisoneve.weebly.com/uploads/1/3/4/4/134470706/wujugenikobebeg.pdfIn PDF document text
- https://luvunamuzem.weebly.com/uploads/1/3/0/8/130874488/lamasiporonub-bixusigit.pdfIn PDF document text
- https://xereritotof.weebly.com/uploads/1/3/1/0/131070340/5263073.pdfIn PDF document text
- https://tedarotola.weebly.com/uploads/1/3/1/4/131482933/1239771.pdfIn PDF document text
- https://watogovujun.weebly.com/uploads/1/3/4/6/134626060/maxevatud.pdfIn PDF document text
- https://finenomasawovep.weebly.com/uploads/1/3/1/4/131437785/gewipikoxubu.pdfIn PDF document text
- https://besukefovubon.weebly.com/uploads/1/3/3/9/133997228/polomiki-xafitabaverax-penoto-jagorek.pdfIn PDF document text
- https://deserekinubolid.weebly.com/uploads/1/3/4/3/134319780/8890974.pdfIn PDF document text
- https://mokogexikimowo.weebly.com/uploads/1/3/4/3/134321985/wizezafeje.pdfIn PDF document text
- https://jubigugatuse.weebly.com/uploads/1/3/0/7/130775741/6587791.pdfIn PDF document text
- https://vitukotegow.weebly.com/uploads/1/3/0/7/130775282/fawami-wajinese-guzuvilelaf.pdfIn PDF document text
- https://pefemodadiz.weebly.com/uploads/1/3/4/5/134520562/68319a2631149.pdfIn PDF document text
- https://virenejamavik.weebly.com/uploads/1/3/4/1/134131854/9294537.pdfIn PDF document text
- https://rupunapu.weebly.com/uploads/1/3/4/3/134354814/23fdbbddf7.pdfIn PDF document text
- https://korexabareruwa.weebly.com/uploads/1/3/2/6/132680962/dogeve_zapederiz_gokibunemu.pdfIn PDF document text
- https://vinemexip.weebly.com/uploads/1/3/4/3/134306635/datew.pdfIn PDF document text
- https://sajenaviwabawi.weebly.com/uploads/1/3/4/2/134266368/xudixinufesodusegefo.pdfIn PDF document text
- https://dodanopo.weebly.com/uploads/1/3/1/4/131408738/8372249.pdfIn PDF document text
- https://kinajerabisar.weebly.com/uploads/1/3/4/7/134748515/8425207.pdfIn PDF document text
- https://notozovurex.weebly.com/uploads/1/3/2/8/132814393/vuxakurebexoniv.pdfIn PDF document text
- https://wozukaziximuru.weebly.com/uploads/1/3/4/5/134587045/butozadem.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_off00011495.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11495	16416 bytes
SHA-256: `cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336`
`font_01_sfnt_off00012b34.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12B34	18760 bytes
SHA-256: `0c33f1708b8465acf7419b190c6ea81e247e415d2db1cffab0560d764f15b000`
`font_02_sfnt_off00015b6d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x15B6D	11228 bytes
SHA-256: `7ca4d8dfadda79f16dbb720d52c09b37fd738b427c3e3d6117af5273795c2e78`

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