MALICIOUS
106
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1539 Steal or Harvest Credentials
The PDF document was flagged by an ML classifier as malicious and contains numerous embedded URLs, many pointing to disposable hosting. The 'SE_MFA_LURE' heuristic indicates the document is designed to harvest credentials by mimicking a multi-factor authentication or one-time code prompt. The presence of external URIs and the link farm heuristic further support a phishing or credential harvesting attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 5
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MFA / one-time-code harvesting lure high SE_MFA_LUREDocument asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
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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://seumenha.ru/strik?utm_term=fluke+linkrunner+duo+manual PDF link annotation
- http://test123test.xyz/11960772011mm904.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4378641/normal_606140ec5b18c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4411691/normal_606a87c966cbe.pdfIn PDF document text
- https://sokuvefababadax.weebly.com/uploads/1/3/1/8/131856373/sefuzinimexipuziwufe.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4463009/normal_6058e902e63f7.pdfIn PDF document text
- http://lerob.info/kunina89mle.pdfIn PDF document text
- http://geniputan.66ghz.com/89800514616.pdfIn PDF document text
- https://nafezukame.weebly.com/uploads/1/3/2/3/132302716/5840999.pdfIn PDF document text
- https://woxoxuwavi.weebly.com/uploads/1/3/4/6/134689382/d5ce1c.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4470029/normal_6000adab81ecb.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://f3ea461b-95fd-44cf-949c-5afda193840f.filesusr.com/ugd/a48928_0628eec4740443b986d108b98ead68d2.pdf?index=trueIn PDF document text
- http://wijijatalil.epizy.com/bixby_home_apk_for_marshmallow.pdfIn PDF document text
- http://doliwoxebokuk.rf.gd/password_keeper_app_android_free.pdfIn PDF document text
- http://pokupila.rf.gd/vesepawenikalutoxaxofegab.pdfIn PDF document text
- http://rorewoj.rf.gd/loweparotu.pdfIn PDF document text
- https://6090ae5c-070c-4b50-bfd2-11a66789f099.filesusr.com/ugd/83cce3_daee7bebd6844e65a94ccb5ba701977e.pdf?index=trueIn PDF document text
- https://1e8c0764-4a0f-46ab-84a2-5f63a8a44928.filesusr.com/ugd/6a0acf_2436d16b084d44d5887267d2e2d228e2.pdf?index=trueIn PDF document text
- http://wazewatiduxuz.epizy.com/vamimowedopigutewifufaf.pdfIn PDF document text
- http://xidozuk.rf.gd/pojoxameseviwobovamamoj.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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dce1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCE1 | 3196 bytes |
SHA-256: c66bc2cdb147f5273e9f53f1e5f6dfb4794ad70cb8bbf87e35a5e42028a9d722 |
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font_01_sfnt_off0000e858.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE858 | 4616 bytes |
SHA-256: d5188820fce00afa054903ae87dbe8a3e1c1830037095ba092fca00bf9ba92f8 |
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font_02_sfnt_off0000f7d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7D4 | 11792 bytes |
SHA-256: e8943f4ca279c7912c040de621bc57ec8810d029ae02a276bbde710ad5016a4c |
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font_03_sfnt_off00012002.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12002 | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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