PDF malware analysis — malicious · 191ef57150df51ac

MALICIOUS

PDF

79.3 KB Created: 2022-04-14 10:46:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22

MD5: 57aab1431a0a5c3b495d691301498494 SHA-1: 006e3adc4b69395ec2caeb1070d723614726d785 SHA-256: 191ef57150df51acf6241546d873ab68cd922868d0d1c8a2c8c73c47d6b7d260

186 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9966

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://yoyep.co.za/YmrXLWy8?keyword=what%20is%20junji%20ito PDF link annotation
- https://ofertaromania.ro/ckfinder/userfiles/files/86444828149.pdfIn PDF document text
- http://bienchidan.org/uploads/files/52175754057.pdfIn PDF document text
- https://mytopics.it/uploads/file/66297089408.pdfIn PDF document text
- https://funasikikudu.weebly.com/uploads/1/4/1/2/141282289/6130240.pdfIn PDF document text
- https://mezovojexojija.weebly.com/uploads/1/3/0/8/130874002/turemeragutaton.pdfIn PDF document text
- https://lefusovu.weebly.com/uploads/1/3/4/0/134040443/gasamukenab.pdfIn PDF document text
- https://sofasiwo.weebly.com/uploads/1/3/4/3/134319993/mesijirirufogen-denugib-jakopige-nabuziguf.pdfIn PDF document text
- https://mipirizu.weebly.com/uploads/1/3/2/6/132682564/suten.pdfIn PDF document text
- http://hykylalumni.org/userfiles/lolutofexafubeserodovaj.pdfIn PDF document text
- https://labonumaziki.weebly.com/uploads/1/3/4/5/134584797/xidedifatadavaxa.pdfIn PDF document text
- https://likufugusatu.weebly.com/uploads/1/3/1/4/131406708/27b5b238553d9f.pdfIn PDF document text
- https://biwawabagukolaz.weebly.com/uploads/1/3/4/7/134730268/7ef219e7f49.pdfIn PDF document text
- https://idosekotthonaveresegyhaz.hu/files/files/zarudatimelepig.pdfIn PDF document text
- https://bofetolukolun.weebly.com/uploads/1/3/4/0/134018575/2205469.pdfIn PDF document text
- http://artanuji.ge/admin/ckeditor/ckfinder/userfiles/files/tizubekab.pdfIn PDF document text
- https://wapofowivukixog.weebly.com/uploads/1/3/4/0/134017250/gamadoxufukeki.pdfIn PDF document text
- https://rajuwirorevub.weebly.com/uploads/1/3/5/3/135306937/pubot-xugafapa-gefenudunejobom.pdfIn PDF document text
- https://bevozuvegala.weebly.com/uploads/1/3/3/9/133999301/finepevim.pdfIn PDF document text
- https://rofobanajogano.weebly.com/uploads/1/3/1/1/131164113/2839441.pdfIn PDF document text
- https://figajusare.weebly.com/uploads/1/3/4/6/134610400/nifisumawosajej.pdfIn PDF document text
- http://boldino-hotel.com/ckfinder/userfiles/files/xevajekowo.pdfIn PDF document text
- http://jerry-cheese.com/kcfinder/upload/files/norabozibifatotoj.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_off0000bffc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBFFC	5136 bytes
SHA-256: `82b55525a1d0bef3e38f871728e48371366430c742ada3ca4a9e1d6890061dc1`
`font_01_sfnt_off0000d2a5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD2A5	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off0000eabc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEABC	10152 bytes
SHA-256: `3a4afc076ff0e918a799d68ff25d3e3b30e93ab24f8d9ec78a62455492536706`
`font_03_sfnt_off0001015a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1015A	17556 bytes
SHA-256: `2f59c44a29da825dc1694eca7582c2d5a6ae55c36983090f283d8b257ee9d58d`

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