MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF document identified as malicious by ClamAV and an ML classifier. It contains a large number of external links, many hosted on disposable domains, indicating it functions as a link farm. The presence of embedded URLs and the nature of the link farm suggest a phishing or malware distribution attempt, likely leveraging spearphishing as an initial access vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 6
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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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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://nipisod.ru/123?utm_term=laboratory+analysis+report PDF link annotation
- https://didunomupipopad.weebly.com/uploads/1/3/1/4/131438203/punamapadivus.pdfIn PDF document text
- http://simcars.ru/legajodicpnli.pdfIn PDF document text
- https://dibarovufi.weebly.com/uploads/1/3/0/7/130776786/rozosubepepejawijeli.pdfIn PDF document text
- https://ranibifuvif.weebly.com/uploads/1/3/1/3/131381542/xolutelokorato_bovirikag_mafisuzorane_fuxakijob.pdfIn PDF document text
- https://pikulevixabokof.weebly.com/uploads/1/3/1/6/131606248/8595869.pdfIn PDF document text
- https://vakitepodedobi.weebly.com/uploads/1/3/5/9/135963574/zenomazageberami.pdfIn PDF document text
- https://wojizenufojanog.weebly.com/uploads/1/3/4/7/134724603/pekodud_selulizul.pdfIn PDF document text
- https://sirowatogiwu.weebly.com/uploads/1/3/2/8/132814809/3653af6ffc0a244.pdfIn PDF document text
- https://xafukulirodut.weebly.com/uploads/1/3/1/3/131379356/21261b6ee6b30f.pdfIn PDF document text
- https://pizijejubuga.weebly.com/uploads/1/3/4/8/134883891/439b63dc899d.pdfIn PDF document text
- http://save50.pro/8320767677k4nbc.pdfIn PDF document text
- https://tokegomobox.weebly.com/uploads/1/3/4/3/134314144/lonekele_gitularufiw.pdfIn PDF document text
- https://dimazemoredexi.weebly.com/uploads/1/3/5/3/135309177/jozopo.pdfIn PDF document text
- https://zanomegujinax.weebly.com/uploads/1/3/4/8/134873542/sivujusipusid.pdfIn PDF document text
- http://lnstagramsecurity.net/background_hd_scenewxdxl.pdfIn PDF document text
- https://jasefeneg.weebly.com/uploads/1/3/4/4/134489721/8082453.pdfIn PDF document text
- http://dress-russia.ru/screen_stream_mirroring_apk_iosocjsd.pdfIn PDF document text
- https://rofukidixupa.weebly.com/uploads/1/3/1/4/131414661/pekeka.pdfIn PDF document text
- https://pogunokele.weebly.com/uploads/1/3/0/7/130739789/zuguzewelatiwu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/4e1e4190-8f3e-4188-8b0c-036d767805be/lefojewonorilivijivu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7c5005d4-789b-4312-84ce-f73dfab153b3/75464973587.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_off0001002a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1002A | 4996 bytes |
SHA-256: 50d845e3564a684c6a713eb7205e5ec8bd5f240ab877eb30e91ac18e5269cccc |
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font_01_sfnt_off00011139.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11139 | 11304 bytes |
SHA-256: ebc68f1c18721bf05f6e5104d2f717c99be315285fc52e78df8a27ac9c9d752c |
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