MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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/strik?utm_term=spanish+words+quizlet PDF link annotation
- https://cdn-cms.f-static.net/uploads/4495390/normal_602a2440eaf08.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4383928/normal_5ffa247ac789f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4468819/normal_6038352b72de2.pdfIn PDF document text
- https://cdn.sqhk.co/kajojetugap/mhcWoij/sepivimorigudodufonuz.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4412905/normal_6048c01193f33.pdfIn PDF document text
- https://cdn.sqhk.co/vetukalujir/o6ghMHI/minecraft_ps4_next_update_2020.pdfIn PDF document text
- https://cdn.sqhk.co/wadupaxi/eGjFogc/al_kahraba_se_com_sa.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://0e098354-e5d1-4afc-9be7-763a70ae5e44.filesusr.com/ugd/ef253e_e8496dc3969d442d9be7634d68663e9b.pdf?index=trueIn PDF document text
- https://ae26bae5-b1f3-4fb2-a0ba-5d2f2d23988c.filesusr.com/ugd/aec2ea_4133d38f56f44fd7b29cbd656958f8ee.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/edd6f1f7-65bb-4e1b-b0d7-b131d29651ed/bikini_body_guide_2.0_free_download.pdfIn PDF document text
- https://d6b7b3c7-8429-4d82-9d75-5d5d09e763cc.filesusr.com/ugd/a8c229_ef4e17966161422a893a45f21e63fe1f.pdf?index=trueIn PDF document text
- https://790985df-dfec-4a08-b509-00f37668cf87.filesusr.com/ugd/a421e3_a83f9ca719834d04badae3a4d07fd10a.pdf?index=trueIn PDF document text
- https://4cd5a77a-be8d-44ba-8952-4177873115c4.filesusr.com/ugd/930050_963b52238fc047bf84b7a13a73a56f8e.pdf?index=trueIn PDF document text
- https://680e7e7f-99bb-4309-8a01-ecc910dc7690.filesusr.com/ugd/717a42_d340f7ae7c6043ab9a1a950671e23164.pdf?index=trueIn PDF document text
- https://caf0f927-206f-4b4e-aa34-0dd3da53679b.filesusr.com/ugd/83d902_f3a58d503dd849cabcbf6da3283950d6.pdf?index=trueIn PDF document text
- https://d8ec88ce-93b1-4b83-b294-7016fd5b5063.filesusr.com/ugd/366252_8b7d87bdce0f4f01a8989a5f032fe649.pdf?index=trueIn PDF document text
- https://9dd02728-8b0e-4c16-8a5b-31b14a6ec887.filesusr.com/ugd/d8c3ed_14e2d45077b74753a3760f4d8db9ac4f.pdf?index=trueIn PDF document text
- https://de315c38-daa2-4293-b666-e554ba9b7d65.filesusr.com/ugd/564d2e_b90e910a8af144198b6e08431de09f7f.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/0a162958-c99e-4070-a4ce-02eb1dd985cd/83220525388.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_off0000e914.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE914 | 5420 bytes |
SHA-256: 7dd6df386f01630dc6c208ccb4493ad3a4baa9f4c2f23587c45b0cc8dcb46bd0 |
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font_01_sfnt_off0000fb8f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB8F | 12024 bytes |
SHA-256: 6526ddfb82b48f89e59d7bd33762dc0d007ae05c1f4c2b7a1bf6d6eb0fd22131 |
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