MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. The document contains numerous embedded URLs, many pointing to compromised WordPress sites, suggesting it functions as a link farm designed to redirect users to malicious content. The heuristic 'SE_LOLBIN_RUN_COMMAND' also indicates suspicious command-like sequences within the document text.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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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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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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://krisoc.ru/uplcv?utm_term=quotes+that+show+curley%27s+wife+is+lonely
- http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16080d88048204---14907254752.pdf
- http://autosklo.sk/pictures/file/64649824931.pdf
- https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/di6gpcdfhmdadcccbpj33q2o3m/20904339995.pdf
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609438ea1778d---39367289307.pdf
- https://singaporeroadshow.com/wp-content/plugins/super-forms/uploads/php/files/a7b84c87ce7e7a033951aa04e6c3129b/mazufarupozodatam.pdf
- http://fantasypartyentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f02e979fc9---71546500262.pdf
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16093fde201853---jopun.pdf
- http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/1607ba2a8be11a---losapalasukefikosi.pdf
- https://goodline.by/userfiles/file/13511221009.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077b04de43c4---38535367967.pdf
- http://hongshengfish.com/uploadfiles/2021052908362382708.pdf
- https://mariellatriolo.it/public/file/nugiwikezojoxibumozese.pdf
- http://uitvaartverzorgingsindex.nl/images/uploads/tetuzemekaxoneroloz.pdf
- http://analogsys.com/uploaded/file/1481575731608e1c18a394f.pdf
- http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/4a4a84b3d7bbb7dc84d6dc7508f3b76c/vajanilejebiseduliraw.pdf
- http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098bc14e906d---xitapofobamasugeketewak.pdf
- https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/3739b0a385a1d24d46604ee11ee2630b/nogit.pdf
- http://www.gaviprintpack.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf6a50cf639---nofewutebabasuruperebi.pdf
- http://copy2d.com/ftp/image/file/nanolubunumuwepo.pdf
- http://tahi.hu/ckfinder/userfiles/files/zojenimoturawakabulef.pdf
- http://payassistinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d28fcbb533---69576576003.pdf
- http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160985abba38ba---49587858977.pdf
- http://vdgairconditioning.nl/wp-co
- 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_off0000ec76.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC76 | 16792 bytes |
font_01_sfnt_off00010488.bineb88ac402adbabe1c66001eb8305b73c015e630d938b1f30bf0915651d69a085 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10488 | 16996 bytes |
font_02_sfnt_off000130b6.bin7e4acd27fd4038fd2e9f13c7b94bf46f30e79e488c916a7d425cdb624f3ad6dd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x130B6 | 10824 bytes |
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