MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm and employs a callback lure, prompting users to contact a fraudulent entity regarding billing or security issues. While no scripts were directly extracted, the presence of numerous external URLs suggests a mechanism for delivering further malicious content or redirecting users to phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall 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.
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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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://laborke.ru/uplcv?utm_term=how+to+clear+your+keyboard+history+on+android PDF link annotation
- http://sjzhtchem.com/upload/files/34999721028.pdfIn PDF document text
- http://baove247.org/upload/files/9465742667.pdfIn PDF document text
- http://gapp.fr/medias/files/fijosib.pdfIn PDF document text
- http://lindseyderence.com/userfiles/files/33070886358.pdfIn PDF document text
- http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1612ea7b462ae1---korojofetutumeguwezuvakud.pdfIn PDF document text
- https://gadesign52.com/uploads/files/202109012348025599.pdfIn PDF document text
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/54194005ad6c2eec66270619b0513feb/88058903732.pdfIn PDF document text
- http://luberoff.com/userfiles/file/53526728439.pdfIn PDF document text
- http://cameranichietsu.com/luutru/files/wavesewafanodaginasamujab.pdfIn PDF document text
- http://chalappuram.com/userfiles/file/sugosivodalen.pdfIn PDF document text
- http://myphamlulanjina.com/upload/files/87083039970.pdfIn PDF document text
- http://yonezawanet.jp/units/24250/zcycom/files/kozivadosubedilubav.pdfIn PDF document text
- http://ropesadventure.com/d/files/74641601189.pdfIn PDF document text
- http://j1ent.com/userfiles/file/20210901115441.pdfIn PDF document text
- http://mbjarrahi.com/UploadedFiles/New/file/dadogedul.pdfIn PDF document text
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/1k171epm9vn9batn32m5f88l1r/83036299212.pdfIn PDF document text
- http://datacomsystems.cz/userfiles/file/nibizitebufokugofe.pdfIn PDF document text
- http://uteambio.com/upload/files/lapibefotibitunetimiru.pdfIn PDF document text
- http://ninda.vn/userfiles/files/12004646928.pdfIn PDF document text
- http://ckudzcssffhhj.handysociality.com/upload/files/tiladeke.pdfIn PDF document text
- http://www.impactit.in/ckfinder/userfiles/files/62644828415.pdfIn PDF document text
- https://limsurempat.com/contents/files/favovivudofelo.pdfIn PDF document text
- http://lnv-cnc.gr/userfiles/file/tekorivalifopojuwi.pdfIn PDF document text
- http://diskacme.dk/images/upload/file/gimokakagorirazuri.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_off0000de82.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE82 | 18248 bytes |
SHA-256: 3a2e10c6d5c41d48dbe15a1966269e5dba747d28faf9f6322ecf3dfd176fe11f |
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font_01_sfnt_off00010d86.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D86 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001259d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1259D | 10992 bytes |
SHA-256: e7e6edf6a85602ea334e50816ec5dd45de8223a509a1ceac8780f59ebd092492 |
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