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 0.9990
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://botokaw.ru/123?utm_term=crsu+b.+ed+date+sheet+june+2018 PDF link annotation
- https://static.s123-cdn-static.com/uploads/4446026/normal_5ffd5283d53d1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4427094/normal_603b29f3c7ec8.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4389354/normal_5fee0e2b3bd5e.pdfIn PDF document text
- https://cdn.sqhk.co/porekige/BGjdkjb/72279044813.pdfIn PDF document text
- https://cdn.sqhk.co/jetirivotu/gcByidf/teamviewer_free_filehippo.pdfIn PDF document text
- https://cdn.sqhk.co/basinasedu/skkjjbr/neuron_labeled_soma.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4419437/normal_6020ff501cc01.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367922/normal_6052b77e6626e.pdfIn PDF document text
- https://cdn.sqhk.co/sabumijobude/bQCjc2Y/45264426388.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383475/normal_6040db9e0fa87.pdfIn PDF document text
- https://cdn.sqhk.co/xovinexesun/Kghieic/streamer_life_simulator.pdfIn PDF document text
- https://cdn.sqhk.co/vofudejobif/Gjghfym/jagikapuv.pdfIn PDF document text
- https://cdn.sqhk.co/menodotitit/uyihdSw/78540278849.pdfIn PDF document text
- https://cdn.sqhk.co/kokojisip/HhcgcId/papakuvifofopomilel.pdfIn PDF document text
- https://cdn.sqhk.co/vorebilifi/lgcVVxa/heroes_of_dragon_age_forum.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387031/normal_601c69dbc1ca3.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4529024/normal_5fee613b8a6a9.pdfIn PDF document text
- https://cdn.sqhk.co/dikapagoloza/Lsz5age/baixar_genplusdroid_apk.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://e22e8d81-f41f-4d51-abb1-39b19d2d32bb.filesusr.com/ugd/96bf9d_9059c17017a545aeb1e53f6a35993f09.pdf?index=trueIn PDF document text
- https://c827806f-f9bf-4fd3-a4ce-e487c020fa79.filesusr.com/ugd/6fd45c_31ea15b613c14801807ae59cfde96232.pdf?index=trueIn PDF document text
- https://6bc61794-ec17-45f1-96eb-8bed4cd57308.filesusr.com/ugd/217b8a_bd3ba64e78bc42ce8967aa98961e2371.pdf?index=trueIn PDF document text
- https://6d251753-49d0-4f5b-a278-10ed1cacc9d0.filesusr.com/ugd/5c139a_e8ba46a1eb0f4c6db5cae46c0c06ea15.pdf?index=trueIn PDF document text
- https://4d3f6715-1114-433d-a4b7-45a5e22e3858.filesusr.com/ugd/ce86b4_b6fe9e8972ad4acfb9693c7dbb6337b9.pdf?index=trueIn PDF document text
- https://2aa89031-56ac-4de1-b828-aabe99840ec8.filesusr.com/ugd/cf14a4_9512fc8918924de485974ecbc0fc719e.pdf?index=trueIn PDF document text
- https://d86ad34a-7df2-4f47-937b-a12ab5abc0fa.filesusr.com/ugd/8cbfce_a326fd8cb85a456e9e39c386a7e4c771.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_off0000ffbd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFBD | 5552 bytes |
SHA-256: 29bb32a3e106edbd91d1b20b5f58a34d1af5825c5cd3303a08b6b531402bdebc |
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font_01_sfnt_off0001129f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1129F | 10184 bytes |
SHA-256: 1bb2b5368dde3bac60ecccb95b9131b2ed2221de2335823947f0680bb0edb1ea |
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