PDF malware analysis — malicious · af277b04dcee0352

MALICIOUS

PDF

81.7 KB Created: 2022-04-11 14:32:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22

MD5: 398effdd69bf93b69e48e4c44c57f25b SHA-1: 84b01e3c04a53f9c949af3e94f6f0fdf89a48894 SHA-256: af277b04dcee03522aa5915a017a2a2e74ddd815f488977ea55bbd6742998da1

246 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9985

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.
Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH

Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://fagamoku.weebly.com/uploads/1/4/1/3/141376543/7653180.pdf.
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=peer%20gynt%20violin%20sheet%20music PDF link annotation
- https://magicdiscoradio.com/userfiles/file/81729725974.pdfIn PDF document text
- https://fagamoku.weebly.com/uploads/1/4/1/3/141376543/7653180.pdfIn PDF document text
- https://koruguliduni.weebly.com/uploads/1/3/4/8/134896859/jepoletijibemenom.pdfIn PDF document text
- https://bumaxaxup.weebly.com/uploads/1/3/4/2/134235918/jiwisabakowav-mugopozutebim.pdfIn PDF document text
- https://samsungklima.net/upload/ckfinder/files/90651403897.pdfIn PDF document text
- https://vatopefo.weebly.com/uploads/1/3/1/3/131398509/badofofu_fazowewu_xoziro_nurupivelali.pdfIn PDF document text
- https://jurogewogil.weebly.com/uploads/1/3/4/3/134318518/posapomipenum.pdfIn PDF document text
- https://xuwowazasoko.weebly.com/uploads/1/3/4/0/134041707/xolakijetuzezisog.pdfIn PDF document text
- https://xeregewafule.weebly.com/uploads/1/4/1/3/141300427/174211.pdfIn PDF document text
- https://fedonofawok.weebly.com/uploads/1/3/4/8/134881994/9162739.pdfIn PDF document text
- https://japapetokanov.weebly.com/uploads/1/3/1/4/131454126/7bcef1491422.pdfIn PDF document text
- https://vugigedekamem.weebly.com/uploads/1/3/4/3/134339685/f38072ca.pdfIn PDF document text
- https://terminal.hr/userfiles/file/61368028575.pdfIn PDF document text
- https://sibevuguz.weebly.com/uploads/1/3/4/8/134859718/3129216.pdfIn PDF document text
- https://letitelow.weebly.com/uploads/1/3/4/5/134500939/wofimalogew_xaxusu_sozugarodator.pdfIn PDF document text
- https://jusegopij.weebly.com/uploads/1/3/4/4/134480833/7895065.pdfIn PDF document text
- https://talotemeve.weebly.com/uploads/1/3/1/6/131606578/4130758.pdfIn PDF document text
- https://www.studiorosaliabusco.it/ckfinder/userfiles/files/desugelujobonififa.pdfIn PDF document text
- http://steelbo.com/uploads/admins/u0/files/20220321195146.pdfIn PDF document text
- https://sazopugewado.weebly.com/uploads/1/3/1/4/131453094/judiboleled_retebopu_mubimixebi_tagurevusej.pdfIn PDF document text
- https://xevekefipozi.weebly.com/uploads/1/3/1/4/131406281/xovemugew-kesomis-direlir.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_off0000d59b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD59B	18924 bytes
SHA-256: `39bf4d8f17f8ee69d84e8f33f6219765fa32c2b82771bd39964ba61696cdca12`
`font_01_sfnt_off0001085f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1085F	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off00012076.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12076	10796 bytes
SHA-256: `0ecb94a4e845c7b1d2202b7c63b24b9895be1bb513eaf0a93db38c93ff8ae542`

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