MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. The document body's content about fixing a water softener appears to be a lure to disguise the malicious nature of the embedded links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://jacksth.ru/123?utm_term=how+to+fix+a+water+softener+that+keeps+running PDF link annotation
- https://cdn.sqhk.co/duxadikoti/fhcEnha/30119477598.pdfIn PDF document text
- https://cdn.sqhk.co/budajawisore/yhcXgg8/bexevijumajifonivananeg.pdfIn PDF document text
- https://dadekubezaxinis.weebly.com/uploads/1/3/2/7/132740399/xejimovilisus.pdfIn PDF document text
- https://rifivubego.weebly.com/uploads/1/3/1/4/131407021/05e3bc81ed2f3e.pdfIn PDF document text
- https://redewude.weebly.com/uploads/1/3/1/3/131379671/9292885.pdfIn PDF document text
- http://womenalikumat.22web.org/31297383260.pdfIn PDF document text
- https://tifixexeruwa.weebly.com/uploads/1/3/2/6/132682204/9198b8d3.pdfIn PDF document text
- https://cdn.sqhk.co/wofosavafiju/HBSsji3/rock_hero_2_apk_hack.pdfIn PDF document text
- https://lozusometuzasop.weebly.com/uploads/1/3/4/7/134741376/rexojupow.pdfIn PDF document text
- https://divebofa.weebly.com/uploads/1/3/4/6/134690115/2133240.pdfIn PDF document text
- https://cdn.sqhk.co/wiluxuko/4ijjget/91548900607.pdfIn PDF document text
- https://cdn.sqhk.co/jajotulix/cYIgeSh/lumokofuwoduvoxeka.pdfIn PDF document text
- https://cdn.sqhk.co/vizelupavew/ggUhd65/92791817665.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://s3.amazonaws.com/davawina/80000694752.pdfIn PDF document text
- http://kezepinaxozegom.epizy.com/braniff_airlines_halston_uniforms.pdfIn PDF document text
- https://s3.amazonaws.com/wegugus/solving_quadratic_equations_mixed_worksheet_with_answers.pdfIn PDF document text
- http://fiwujugisijema.epizy.com/pediatric_pneumonia_treatment_guidelines_2019.pdfIn PDF document text
- https://s3.amazonaws.com/dobikasukavu/assassin_s_creed_odyssey_thaletas_romance_guide.pdfIn PDF document text
- http://fogafixajusel.rf.gd/below_her_mouth.pdfIn PDF document text
- https://s3.amazonaws.com/wuvepilamamuse/bss_telecom.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f5c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5C1 | 5196 bytes |
SHA-256: f77dc6067553757f870180e36654a1af4d157e5d60ebc7a0799ed4f26e45f890 |
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font_01_sfnt_off0001077d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1077D | 10556 bytes |
SHA-256: 401bef749c760c711dbee216e881dcf7756a0ce79db8930917e9f7d39b536621 |
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font_02_sfnt_off00012bab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BAB | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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