MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external links, indicating it's designed to redirect users to potentially malicious websites. The heuristic 'PDF_SEO_LINK_FARM' strongly suggests a tactic to generate traffic or distribute phishing content. The ML classifier and ClamAV detection further confirm its malicious nature, likely serving as a lure for further compromise.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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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://wirut.co.za/YmrXLWy8?keyword=what%20is%20knowledge%20worker%20in%20nursing PDF link annotation
- https://xusezazidajitov.weebly.com/uploads/1/3/5/3/135325201/1556423.pdfIn PDF document text
- http://profuturis.be/kcfinder/upload/files/44901787760.pdfIn PDF document text
- http://www.barrettmotors.com.au/templates/admin/js/kcfinder/upload/files/vipogi.pdfIn PDF document text
- https://rolewexuvuviwu.weebly.com/uploads/1/3/4/7/134742390/dirojavuser-vuliwuv.pdfIn PDF document text
- https://xeluluferira.weebly.com/uploads/1/3/4/2/134266649/bakinubizuzujesa.pdfIn PDF document text
- https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/bf5a2bfa6d3e01faffed9da0c8dd6875/4631880031.pdfIn PDF document text
- https://vozupixog.weebly.com/uploads/1/3/4/3/134312338/7749168.pdfIn PDF document text
- https://turetajonu.weebly.com/uploads/1/3/4/6/134629909/2ee7b.pdfIn PDF document text
- http://chianchang.yun2u.com/upload/files/nuvap.pdfIn PDF document text
- https://bepogopinaw.weebly.com/uploads/1/3/4/7/134742936/6525923.pdfIn PDF document text
- https://www.nysc.lk/dmin/include/ckeditor/kcfinder/upload/files/57881033397.pdfIn PDF document text
- https://genolawibiwiz.weebly.com/uploads/1/3/4/3/134316454/tefumajelule_luvokedogam.pdfIn PDF document text
- https://gegefexazo.weebly.com/uploads/1/3/0/8/130813269/zimezamubud_piwelerivibutuf_wozef_fugifupomedev.pdfIn PDF document text
- https://menegelobeka.weebly.com/uploads/1/3/4/9/134903334/a165fc0009fb8e5.pdfIn PDF document text
- http://www.kzhep.in.ua/wp-content/plugins/super-forms/uploads/php/files/j9fpkh32q4hihoqon7gkkkt0r5/18013065172.pdfIn PDF document text
- http://savages.lu/imagesRTE/files/38690435517.pdfIn PDF document text
- https://girezerel.weebly.com/uploads/1/3/1/0/131070389/e2c2d6a763.pdfIn PDF document text
- https://bukodagunotul.weebly.com/uploads/1/3/4/0/134012399/1389107.pdfIn PDF document text
- https://bijawodit.weebly.com/uploads/1/3/4/8/134883407/6028803.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_off0000db70.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB70 | 17396 bytes |
SHA-256: 29f5af31e1c415e01b6238d2f96268f50596550a481f86513fedfd12e2911e48 |
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font_01_sfnt_off000108f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108F8 | 10800 bytes |
SHA-256: 31ecde45d1ff36577e79df8688a4d78c40de06fe254564d8d4247a172c71f1f2 |
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font_02_sfnt_off000121ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121AC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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