MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains numerous external links, many hosted on disposable domains, suggesting a link farm or phishing attempt. The heuristic 'PDF_SEO_LINK_FARM' indicates a high volume of external links, and 'ML_NYX_PDF_MALICIOUS' and 'CLAMAV_DETECTION' confirm its malicious nature. The document body, though truncated, suggests a lure related to a 'formal leave of absence letter request'. No scripts were extracted, but the presence of numerous URLs points to a redirection or phishing attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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=formal+leave+of+absence+letter+request PDF link annotation
- http://ekzo-fruit.ru/37944133810n40c3.pdfIn PDF document text
- https://midumusifefo.weebly.com/uploads/1/3/5/4/135401272/8621625.pdfIn PDF document text
- http://mufutekuson.getenjoyment.net/illinois_real_estate_broker_license_renewal_requirements.pdfIn PDF document text
- https://dojilosadokadog.weebly.com/uploads/1/3/4/8/134890500/xolesomasor-gadunaluxe.pdfIn PDF document text
- http://thedefenseforge.com/5th_grade_math_in_focus_workbooksujru.pdfIn PDF document text
- http://xojuxelase.medianewsonline.com/87037839253.pdfIn PDF document text
- http://job-finder.space/vovogozarodowizdrs0o.pdfIn PDF document text
- https://pufukowog.weebly.com/uploads/1/3/4/5/134583281/d37022dd.pdfIn PDF document text
- http://daddytestit.xyz/a_song_of_ice_and_fire_5_book_set_vs_7_book_setzljgw.pdfIn PDF document text
- http://pifafixejizigu.scienceontheweb.net/27812025887.pdfIn PDF document text
- https://bonavipopugob.weebly.com/uploads/1/3/2/3/132302892/rarunumupagikuko.pdfIn PDF document text
- http://vitrinachel.ru/what_kind_of_oil_do_you_use_in_a_poulan_electric_chainsawnejxu.pdfIn PDF document text
- https://fevepoxopimumu.weebly.com/uploads/1/3/2/3/132302951/5d4e33c02554.pdfIn PDF document text
- http://rogevunesopu.medianewsonline.com/artistry_supreme_lx.pdfIn PDF document text
- http://moradudipomibo.mypressonline.com/14416542205.pdfIn PDF document text
- http://alania365.ru/the_black_hand_chris_blatchford3wpti.pdfIn PDF document text
- http://lebedugipul.mywebcommunity.org/nobikibe.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://visunes.myartsonline.com/we_gonna_party_like_its_your_birthday_song.pdfIn PDF document text
- https://44bb6ee8-a0fe-4f72-890f-0f0a2fec05cf.filesusr.com/ugd/b65acf_faceb5c7647449ae9eaccc7945b013ee.pdf?index=trueIn PDF document text
- https://ff19a39e-637c-4fc6-80cc-750024e8dd37.filesusr.com/ugd/d217e2_f037547083724408b7d0875d8d2774a7.pdf?index=trueIn PDF document text
- http://vigavanoxe.onlinewebshop.net/61911660233.pdfIn PDF document text
- https://2080fafa-2491-4ac3-8118-a138f33bff34.filesusr.com/ugd/822ecd_45664af640dd44e598c46b5ed411dd66.pdf?index=trueIn 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_off0000f0f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0F0 | 5308 bytes |
SHA-256: 445b867fa03f56b68fade0207e6368249971a9809bbcc4062133c4cd1d3be321 |
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font_01_sfnt_off000102f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102F3 | 10688 bytes |
SHA-256: 0cdc4afd55f8624d88a2a1e3469d68a5e84ee881a8c16cee7afc05274aa42913 |
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