MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains embedded JavaScript and numerous external URIs, many of which are part of a link farm hosted on disposable domains. The heuristic 'SE_LOLBIN_RUN_COMMAND' suggests the document may attempt to execute commands, potentially leveraging the embedded JavaScript to download and execute further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://philabc.ru/uplcv?utm_term=percy+jackson+last+olympian+pdf PDF link annotation
- http://runwellconsulting.com/file/file/40942196327.pdfIn PDF document text
- http://hotelpenza58.ru/ckfinder/userfiles/files/35788758453.pdfIn PDF document text
- http://caogenzhiben.com/filespath/files/20210903045920.pdfIn PDF document text
- http://xahscw.com/userfiles/file/rimisavitizogafujumosi.pdfIn PDF document text
- https://10fci.org/userfiles/file/97374354165.pdfIn PDF document text
- http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613163bb18623---881447662.pdfIn PDF document text
- http://studiotecnicolamanna.com/userfiles/files/pezotazuko.pdfIn PDF document text
- http://charmingcurls.se/upload/file/gupijuvinotepum.pdfIn PDF document text
- https://delphin-restaurant.com/ckfinder/upload/files/70053458142.pdfIn PDF document text
- http://shmgec.com/Uploadfiles/files/43588563283.pdfIn macro / runtime command snippet
- https://tidurmalam2.com/contents/files/sujesavulusaxabenujuzot.pdfIn PDF document text
- https://dpt-mh.com/uploads/news/files/kitovekoxa.pdfIn PDF document text
- https://soechi.id/userfiles/file/liwizogujufiwu.pdfIn PDF document text
- http://quimis.net/js/ckfinder/userfiles/files/xusuterumuj.pdfIn PDF document text
- http://df-2.de/images/daten/file/joziwefol.pdfIn PDF document text
- http://hk-sai.com/ckfinder/userfiles/files/15014186187.pdfIn PDF document text
- https://evergreencans.com/userfiles/file/xorurebiw.pdfIn PDF document text
- http://laarakkers.com/ckfinder/userfiles/files/xijadujezixifusedowatovi.pdfIn PDF document text
- http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d31d78062a---90584841384.pdfIn PDF document text
- http://chatfieldfarms101.com/userimages/72274683360.pdfIn PDF document text
- https://synersys.fr/contenu/file/78320513931.pdfIn PDF document text
- http://eventologia.com/userfiles/files/rigokoxono.pdfIn PDF document text
- http://hyunsin.net/userfiles/file/rubulenijenexal.pdfIn PDF document text
- https://delphin-resIn macro / runtime command snippet
- 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_off0000c6b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC6B9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000decb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDECB | 17040 bytes |
SHA-256: 382447ddbd6975ccb426b289d0ea175fc3a0c903ef6800a4a27d03fd534a669f |
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font_02_sfnt_off00010af9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AF9 | 11120 bytes |
SHA-256: 47d7541386622a060deef4cc3b75babce76c4322eb2f170559dd22606adc9a07 |
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