MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics suggest it functions as a link farm, directing users to various PDF files hosted on compromised websites, and specifically mentions a 'Password-protected archive handoff' lure. This indicates the document's purpose is to trick users into downloading a password-protected payload, likely to evade initial security scanning.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
Heuristics 7
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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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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://crewmak.ru/uplcv?utm_term=pdf+unlocker+filehippo
- http://shihtzufurbabies.net/clients/d/d3/d383cf0c90cf2d2391705d5438694b4c/File/90381217281.pdf
- http://levne-pohary.cz/UserFiles/File/dixeneda.pdf
- http://kindergartenhelden.at/upload/file/limibudupilel.pdf
- https://thepetrichortouch.com/wp-content/plugins/super-forms/uploads/php/files/qqjr5d06h09u1ltfjljd90g0mv/xinafisuxosopad.pdf
- http://banghetretruc.com/media/ftp/file/jusatidi.pdf
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070f7e446e2f---nebiparezenadesip.pdf
- http://maciejabramowicz.pl/upload/files/file/69170747489.pdf
- http://akkoryazilim.com/userfiles/file/jajagi.pdf
- https://journeypeople.cc/wp-content/plugins/super-forms/uploads/php/files/2211dbc76bf531c411451e487a14c4ee/kelotutiwa.pdf
- http://cablexconsulting.com/Upload/file/bigobimelijubib.pdf
- http://tms-operation.com/upload/files/tufebilefawizasumivawul.pdf
- http://crosswaysrecruitment.com/userfiles/file/mevezuvine.pdf
- http://www.urbanwaterways.info/files/nuzesisuja.pdf
- http://richardchong.com/userfiles/files/vesekedenureju.pdf
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/a65c3bf7b6a5e5b377ed47162867b3d3/83392042849.pdf
- https://coevent.ru/upload/files/majuxomabawugitufomupe.pdf
- https://unique.global/wp-content/plugins/super-forms/uploads/php/files/304f7e29843e5892c40d8f7a3e82952c/8358001985.pdf
- https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/fbfb106af38d9bdef77b04f7afafe2fd/99658105543.pdf
- http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160809728d9485---49203973477.pdf
- http://travelci.ru/ckfinder/userfiles/files/18087203940.pdf
- http://codemessaging.net/ckfinder/userfiles/files/pafasawozutaxolajit.pdf
- http://www.lifestaralberta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a83eb86af88---xumup.pdf
- https://vidaleve.ind.br/ckfinder/userfiles/files/murisuj.pdf
- https://sckstone.com/wp-content/plugins/super-forms/uploads/php/files/74d2237ec507504f6fd18574f20b1bf4/19522758499.pdf
- https://kildevangen.dk/files/1690166514.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d927.bin88f55356c910e2b9d347d97b1b689af67d51ee4491af7a8958794ae4e0dd7e70 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD927 | 17312 bytes |
font_01_sfnt_off00010628.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10628 | 16792 bytes |
font_02_sfnt_off00011e3f.bind630d17a4ef5a67493d7eeebea84d00c2efefe809ebc456cfc34725f86e78d89 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E3F | 10484 bytes |
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