MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by multiple heuristics and an ML classifier, specifically flagged as a phishing trojan. It functions as a link farm, containing numerous external URIs pointing to other PDF files hosted on various domains, including 'zajinet.ru' and 's123-cdn-static.com'. The presence of a large number of external links suggests an attempt to distribute malicious content or redirect users to phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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://zajinet.ru/123?utm_term=data+analytics+platform+looker PDF link annotation
- https://static.s123-cdn-static.com/uploads/4425229/normal_5ff65481d4f2a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4425919/normal_6043e6f236479.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367950/normal_604d00a62f46d.pdfIn PDF document text
- http://fuziral.iblogger.org/54950046450.pdfIn PDF document text
- https://suzefajadovu.weebly.com/uploads/1/3/4/5/134592553/3672669.pdfIn PDF document text
- https://fewojejano.weebly.com/uploads/1/3/4/3/134348079/tuxenajag.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4462038/normal_6001011573bdc.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366627/normal_6011eaa479edd.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4501214/normal_5fd05bd59eb28.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4487622/normal_5fe480bd7c9a4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4456686/normal_600a53e83e14b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4407782/normal_603f96503d05c.pdfIn PDF document text
- http://setifol.66ghz.com/75026002951.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://ecf8b3bd-8201-449f-a39c-156acd88681e.filesusr.com/ugd/97634b_2cfa524b6adf492d94fb15c9473cd02a.pdf?index=trueIn PDF document text
- http://mafevinojoxumul.epizy.com/atomicity_of_elements.pdfIn PDF document text
- https://ee42ee57-4547-4a8c-8a66-6cccb7f6869d.filesusr.com/ugd/2a9ad2_25083845df614d71b9cdb7228886f140.pdf?index=trueIn PDF document text
- https://22449060-8e30-4723-8828-967625cce342.filesusr.com/ugd/eddc50_1a233274bb294fc9bfc7ec038c542dd4.pdf?index=trueIn PDF document text
- http://guxudapese.epizy.com/chamar_ka_video_song.pdfIn PDF document text
- https://d99d9bf7-a5e0-49f2-90ac-0d1bc881463d.filesusr.com/ugd/0182ef_1f430055429d40a5bc8eee021eebec73.pdf?index=trueIn PDF document text
- https://835a0401-7144-467e-aacc-710587930ffc.filesusr.com/ugd/432cba_9cade1f53b1b4ac496bbc92e118f4661.pdf?index=trueIn PDF document text
- https://09972071-4174-499b-90b1-de3619f59f53.filesusr.com/ugd/d1c05f_633bd65e02c846d998fa223f2028a12f.pdf?index=trueIn PDF document text
- http://rebikesumusosu.rf.gd/sembulingam_physiology_book_7th_edition_download.pdfIn PDF document text
- https://357b8bef-7330-4cfe-b31d-389db25c4d5a.filesusr.com/ugd/4c76bf_b2fbfd769b414e5faa8596b98215cca6.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_off00011609.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11609 | 5328 bytes |
SHA-256: bb7a36f0083f3f2e28afbfd3005aacda15bd68dd175a7e2232e698765ad06415 |
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font_01_sfnt_off00012827.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12827 | 11672 bytes |
SHA-256: 47ff9e674a17bf8752d88f6d9ca04420963a1b9c3fffb0c1cf202dbb2f533056 |
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