MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to distribute further malicious content. The primary lure appears to be a fake "employee handbook" to entice clicks on the embedded URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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/strik?utm_term=nordstrom+the+world%2527s+shortest+employee+handbook PDF link annotation
- https://cdn-cms.f-static.net/uploads/4391954/normal_60134b51c3725.pdfIn PDF document text
- http://testrun.ru/65621188893c9ziq.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4484097/normal_600f457f15742.pdfIn PDF document text
- http://vorgazme.com/97196171156eho54.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4388424/normal_5fca8007101bd.pdfIn PDF document text
- https://vituxusupodewe.weebly.com/uploads/1/3/1/3/131379836/nuxugo.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379221/normal_5fd322cc621d7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4462992/normal_5fd62eae72996.pdfIn PDF document text
- https://jevetokisavov.weebly.com/uploads/1/3/3/9/133997370/zutetov_tikelo.pdfIn PDF document text
- http://vefuxeromuriwir.iblogger.org/automorphic_forms_and_even_unimodular_lattices.pdfIn PDF document text
- http://prizinsta24.online/wirisuqcoi5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4529149/normal_603e77a3e6fa0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4419003/normal_601b97c9b5b1c.pdfIn PDF document text
- https://gixeroparot.weebly.com/uploads/1/3/4/5/134586235/1b5ac142.pdfIn PDF document text
- http://crysety.xyz/ielts_formal_letter_sample_band_9058cf.pdfIn PDF document text
- http://jadebey-x.com/stihl_fs_90_service_manualm2msq.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4474471/normal_60370808ceb0b.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4453579/normal_5fc62ef2c64ca.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4385028/normal_5feb95181c037.pdfIn PDF document text
- http://rgtuitp.ru/how_long_does_a_2015_toyota_corolla_battery_lastp5vnq.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://sozazavore.rf.gd/adobe_illustrator_free_for_android.pdfIn PDF document text
- http://navenogu.rf.gd/bomubirexozerofasonu.pdfIn PDF document text
- http://gexagulajiv.rf.gd/fobexeridiwagusumiwudag.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_off000137a4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x137A4 | 5600 bytes |
SHA-256: 8cdb3e56e9fdb53e6c928208eee572386c16b82aa1c8d95945fee30a74a427b8 |
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font_01_sfnt_off00014a9c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14A9C | 13040 bytes |
SHA-256: 3f4e09dc392ed91ed10389ab4c51016712deafb1ef70bce39f571bb4aa06d9b2 |
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