MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a LOLBin command-execution lure. 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 0.9989
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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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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://vilenefex.ru/strik?utm_term=words+that+start+with+kilo PDF link annotation
- https://static.s123-cdn-static.com/uploads/4446285/normal_60073e69e4528.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4416322/normal_5fd06af1d7b92.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4469638/normal_5fc8eaf746230.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4382643/normal_5ffb604e328a4.pdfIn PDF document text
- http://naliputa.mywebcommunity.org/ryobi_410r_tiller_for_sale.pdfIn PDF document text
- https://cdn.sqhk.co/woleparos/aoidxbt/84228008647.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4486365/normal_606bd41791db3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379736/normal_6031f815c5a1a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4388157/normal_5fdc7142e8e00.pdfIn PDF document text
- https://cdn.sqhk.co/xevowuto/hiihCih/49061788140.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4373768/normal_6064ea2a02959.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4408460/normal_602c7f040efcd.pdfIn macro / runtime command snippet
- https://cdn-cms.f-static.net/uploads/4410433/normal_6016b906e3d26.pdfIn PDF document text
- http://bitunowaluf.sportsontheweb.net/99_names_of_allah_book.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4372721/normal_6010900f1dd51.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4391634/normal_6021fc4b7a518.pdfIn PDF document text
- https://cdn.sqhk.co/duxadikoti/hcghQid/55296722874.pdfIn PDF document text
- http://vubitim.sportsontheweb.net/os_x_kernel_log.pdfIn PDF document text
- http://nubatevujonuw.mygamesonline.org/badilidezidimubujitudaz.pdfIn PDF document text
- https://cdn-cms.f-stIn macro / runtime command snippet
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/3cdb2247-585a-4127-b5cf-85ac4d0130a9/466491312.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1558ff3e-e6a6-4214-aeb3-1e2028ffab8d/powershell_command_prompt_windows_7.pdfIn PDF document text
- http://gozenabuzixi.onlinewebshop.net/xizabojovefonemodamaso.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/823e8dfa-3754-4641-808b-0fc53711b889/72983508141.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00011f60.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F60 | 3592 bytes |
SHA-256: c4aca9e223161875da0e16a3b4db934733176676149f07a99dc81dd3148ef94d |
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font_01_sfnt_off00012c42.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C42 | 5084 bytes |
SHA-256: 52748f9b6fe55fa71553549add254533a6f342d0c2ceb6901d8d340b7c4b5c21 |
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font_02_sfnt_off00013d9b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D9B | 12316 bytes |
SHA-256: 0d96e026154b03ad2ab1a8f88069906c32ff056508beacb8f47288b9ca3e16d5 |
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