Analysis
- max time kernel
148s - max time network
153s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
22/04/2026, 15:47
General
- Target 2026-04-22_3e25fa982a2fa0d98ba9c9bc453bd179_cobalt-strike_icedid.exe
- Size 107KB
- Sample260422-s8hnesev9s
- SHA256 24bbff95dd737cbd2b512ca5ebe91fd268d3d830dccd24d740f0d74a7f183c2a
Malware Config
Extracted
-
valleyrat_s2
-
1.0
-
154.201.73.40:6688
-
127.0.0.1:80
-
campaign_date
2026. 4.19
Signatures
- Family: ValleyRat
ValleyRat stage2 is a backdoor written in C++.
- Detects ValleyRAT payload 17 IoCs
- Adds Run key to start application 2 TTPs 2 IoCs
- Enumerates connected drives 3 TTPs 44 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
- Uses Volume Shadow Copy WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
- Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-22_3e25fa982a2fa0d98ba9c9bc453bd179_cobalt-strike_icedid.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-22_3e25fa982a2fa0d98ba9c9bc453bd179_cobalt-strike_icedid.exe"1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\svchost.exe"C:\Windows\System32\svchost.exe"2⤵
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
-
-
C:\Users\Admin\AppData\Local\Temp\2026-04-22_3e25fa982a2fa0d98ba9c9bc453bd179_cobalt-strike_icedid.exeC:\Users\Admin\AppData\Local\Temp\2026-04-22_3e25fa982a2fa0d98ba9c9bc453bd179_cobalt-strike_icedid.exe1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\svchost.exe"C:\Windows\System32\svchost.exe"2⤵
- Enumerates connected drives
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/4220-0-0x000001A6EFC80000-0x000001A6EFC82000-memory.dmp
memory/4220-1-0x000001A6F0030000-0x000001A6F00B1000-memory.dmp
memory/4220-2-0x000001A6F00C0000-0x000001A6F00E9000-memory.dmp
memory/4220-3-0x000001A6F00C0000-0x000001A6F00E9000-memory.dmp
memory/4220-4-0x000001A6F00C0000-0x000001A6F00E9000-memory.dmp
memory/4220-5-0x000001A6F00C0000-0x000001A6F00E9000-memory.dmp
memory/4220-39-0x000001A6F2830000-0x000001A6F288D000-memory.dmp
memory/4220-38-0x000001A6F1FE0000-0x000001A6F202E000-memory.dmp
memory/4220-24-0x000001A6F00C0000-0x000001A6F00E9000-memory.dmp
memory/4220-23-0x000001A6F00C0000-0x000001A6F00E9000-memory.dmp
memory/4220-11-0x000001A6F00C0000-0x000001A6F00E9000-memory.dmp
memory/4220-13-0x000001A6F00C0000-0x000001A6F00E9000-memory.dmp
memory/4220-12-0x000001A6F00C0000-0x000001A6F00E9000-memory.dmp
memory/4220-14-0x000001A6F00C0000-0x000001A6F00E9000-memory.dmp
memory/4220-15-0x000001A6F1F90000-0x000001A6F1FD8000-memory.dmp
memory/4220-17-0x000001A6F1FE0000-0x000001A6F202E000-memory.dmp
memory/4220-16-0x000001A6F1FE0000-0x000001A6F202E000-memory.dmp
memory/4220-18-0x000001A6F1FE0000-0x000001A6F202E000-memory.dmp
memory/4220-19-0x000001A6F1FE0000-0x000001A6F202E000-memory.dmp
memory/4220-20-0x000001A6F1FE0000-0x000001A6F202E000-memory.dmp
memory/4496-22-0x0000022C10FA0000-0x0000022C10FC9000-memory.dmp
memory/4496-34-0x0000022C12DE0000-0x0000022C12E2E000-memory.dmp
memory/4496-8-0x0000022C10FA0000-0x0000022C10FC9000-memory.dmp
memory/4496-26-0x0000022C10FA0000-0x0000022C10FC9000-memory.dmp
memory/4496-25-0x0000022C10FA0000-0x0000022C10FC9000-memory.dmp
memory/4496-27-0x0000022C10FA0000-0x0000022C10FC9000-memory.dmp
memory/4496-28-0x0000022C12DE0000-0x0000022C12E2E000-memory.dmp
memory/4496-29-0x0000022C12DE0000-0x0000022C12E2E000-memory.dmp
memory/4496-32-0x0000022C12DE0000-0x0000022C12E2E000-memory.dmp
memory/4496-31-0x0000022C12DE0000-0x0000022C12E2E000-memory.dmp
memory/4496-33-0x0000022C12DE0000-0x0000022C12E2E000-memory.dmp
memory/4496-9-0x0000022C10FA0000-0x0000022C10FC9000-memory.dmp
memory/4496-35-0x0000022C12DE0000-0x0000022C12E2E000-memory.dmp
memory/4496-37-0x0000022C10FA0000-0x0000022C10FC9000-memory.dmp
memory/4496-36-0x0000022C10FA0000-0x0000022C10FC9000-memory.dmp
memory/4496-6-0x0000022C10FA0000-0x0000022C10FC9000-memory.dmp
memory/4496-7-0x0000022C10FA0000-0x0000022C10FC9000-memory.dmp
memory/4496-40-0x0000022C13680000-0x0000022C136DD000-memory.dmp
memory/4496-41-0x0000022C12DE0000-0x0000022C12E2E000-memory.dmp
memory/4496-45-0x0000022C12DE0000-0x0000022C12E2E000-memory.dmp
memory/4496-44-0x0000022C12DE0000-0x0000022C12E2E000-memory.dmp