Resubmissions
20/07/2026, 06:39
260720-hel4msgz3m1020/07/2026, 03:43
260720-eadpxsgz5v1020/07/2026, 03:35
260720-d5vq9ad14p10Analysis
- max time kernel
62s - max time network
58s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
20/07/2026, 06:39
General
- Target 2026-07-20_07669270caf63d49dfd88d8bb1110914_amadey_dharma_elex_rhadamanthys_smoke-loader_stop.exe
- Size 797KB
- Sample260720-hel4msgz3m
- SHA256 019e23589e2d3cbb789edc1ee24e4d4b33810f32ca7fc162e62e79386da4b400
Malware Config
Extracted
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djvu
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http://tbpws.top/fhsgtsspen6/get.php
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extension
.efdc
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offline_id
rCmd3j4aykEBx0X7GSZFXZTRaA1p1vOlNlSS59t1
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payload_url
http://securebiz.org/dl/build2.exe
http://tbpws.top/files/1/build3.exe
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ransomnote
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Signatures
- Family: Djvu Ransomware
Ransomware which is a variant of the STOP family.
- Detected Djvu ransomware 16 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 2 IoCs
- Modifies file permissions 1 TTPs 1 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 6 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious use of WriteProcessMemory 23 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\2026-07-20_07669270caf63d49dfd88d8bb1110914_amadey_dharma_elex_rhadamanthys_smoke-loader_stop.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-20_07669270caf63d49dfd88d8bb1110914_amadey_dharma_elex_rhadamanthys_smoke-loader_stop.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\2026-07-20_07669270caf63d49dfd88d8bb1110914_amadey_dharma_elex_rhadamanthys_smoke-loader_stop.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-20_07669270caf63d49dfd88d8bb1110914_amadey_dharma_elex_rhadamanthys_smoke-loader_stop.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\bc924117-fd7c-409d-b4e5-c1d8fa3a7208" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
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C:\Users\Admin\AppData\Local\Temp\2026-07-20_07669270caf63d49dfd88d8bb1110914_amadey_dharma_elex_rhadamanthys_smoke-loader_stop.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-20_07669270caf63d49dfd88d8bb1110914_amadey_dharma_elex_rhadamanthys_smoke-loader_stop.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\2026-07-20_07669270caf63d49dfd88d8bb1110914_amadey_dharma_elex_rhadamanthys_smoke-loader_stop.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-20_07669270caf63d49dfd88d8bb1110914_amadey_dharma_elex_rhadamanthys_smoke-loader_stop.exe" --Admin IsNotAutoStart IsNotTask4⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
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-
-
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C:\Users\Admin\AppData\Local\bc924117-fd7c-409d-b4e5-c1d8fa3a7208\2026-07-20_07669270caf63d49dfd88d8bb1110914_amadey_dharma_elex_rhadamanthys_smoke-loader_stop.exeC:\Users\Admin\AppData\Local\bc924117-fd7c-409d-b4e5-c1d8fa3a7208\2026-07-20_07669270caf63d49dfd88d8bb1110914_amadey_dharma_elex_rhadamanthys_smoke-loader_stop.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\bc924117-fd7c-409d-b4e5-c1d8fa3a7208\2026-07-20_07669270caf63d49dfd88d8bb1110914_amadey_dharma_elex_rhadamanthys_smoke-loader_stop.exeC:\Users\Admin\AppData\Local\bc924117-fd7c-409d-b4e5-c1d8fa3a7208\2026-07-20_07669270caf63d49dfd88d8bb1110914_amadey_dharma_elex_rhadamanthys_smoke-loader_stop.exe2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
2026-07-20_07669270caf63d49dfd88d8bb1110914_amadey_dharma_elex_rhadamanthys_smoke-loader_stop.exe
memory/612-12-0x0000000000400000-0x0000000000537000-memory.dmp
memory/612-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/612-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/612-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/612-6-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3604-18-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3604-23-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3604-25-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4000-2-0x00000000049D0000-0x0000000004AEB000-memory.dmp
memory/4000-1-0x0000000004860000-0x00000000048FE000-memory.dmp
memory/4936-20-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4936-22-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4936-24-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4936-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4936-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4936-28-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4936-30-0x0000000000400000-0x0000000000537000-memory.dmp