MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to redirect users to potentially malicious content. The document body, though heavily obfuscated, contains references to 'hppsc clerk exam answer key', which is likely a lure to entice users to click on the embedded links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 6
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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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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://lozipotod.ru/123?utm_term=hppsc+clerk+exam+answer+key PDF link annotation
- https://cdn.sqhk.co/mitugejaxel/4VRqSaf/18850774418.pdfIn PDF document text
- https://cdn.sqhk.co/jorubili/hoIgdgf/63085638722.pdfIn PDF document text
- http://nigoguno.scienceontheweb.net/24777248215.pdfIn PDF document text
- https://jowopuvuramikir.weebly.com/uploads/1/3/5/3/135313070/271f69ba0f1.pdfIn PDF document text
- https://rizafosukozesal.weebly.com/uploads/1/3/5/3/135346652/4118812.pdfIn PDF document text
- https://cdn.sqhk.co/nuzinirumawe/hiaL2Es/zesalenosefuletekupopidu.pdfIn PDF document text
- http://worelimupuvefam.mywebcommunity.org/47531111316.pdfIn PDF document text
- https://cdn.sqhk.co/furugilenu/EgeXAgc/pusonujupexirinitagor.pdfIn PDF document text
- https://cdn.sqhk.co/rudixika/dhhidfb/ghost_rider_spirit_of_vengeance_cast.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4469386/normal_5fdabf893a7b2.pdfIn PDF document text
- https://cdn.sqhk.co/dovinokobez/fidegj2/stickman_legends_shadow_apk.pdfIn PDF document text
- https://cdn.sqhk.co/jowapezo/icuKdhh/mewunizemuxofuwukotatem.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4470205/normal_5fe41d02bcfb7.pdfIn PDF document text
- https://cdn.sqhk.co/lodoseduler/mNCdGIf/xukelegutapidoda.pdfIn PDF document text
- https://jamakebowixon.weebly.com/uploads/1/3/4/4/134477175/mepafegedod_kakuposupem_jaratobef_lavizodevar.pdfIn PDF document text
- https://cdn.sqhk.co/nolugavetiri/hgiejej/types_of_speech_style_worksheet.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4444626/normal_5fe62ed2480d5.pdfIn PDF document text
- http://jabudapitu.scienceontheweb.net/cardiomegaly_treatment.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/vasofirida/soxawomo.pdfIn PDF document text
- https://s3.amazonaws.com/mozirolinitaje/clockworkmod_recovery_zip_file_free.pdfIn PDF document text
- http://zezofakarol.myartsonline.com/how_to_take_care_of_a_pool_for_dummies.pdfIn PDF document text
- https://s3.amazonaws.com/somamere/disable_background_app_refresh_android.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e20f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE20F | 5364 bytes |
SHA-256: 7038c541691a7d4ddc10c30f4683adcc3e087ec63e20d1c75f0c9535323955f6 |
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font_01_sfnt_off0000f44d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF44D | 10724 bytes |
SHA-256: e8b7072362c9c40fd1d3e13ab2e87913988026a15f47e49f47a8d4ae9ca52446 |
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