Analysis
- max time kernel
153s - max time network
171s - platform
windows10-2004_x64 - resource
win10v2004-20240412-en - resource tags
- submitted
19/04/2024, 01:56
General
- Target c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe
- Size 397KB
- Sample240419-cczn3aef4z
- SHA256 c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5
Malware Config
Extracted
-
revengerat
-
NyanCatRevenge
-
alice2019.myftp.biz:7777
-
a915f6c5466a49
Signatures
- RevengeRAT
Remote-access trojan with a wide range of capabilities.
- Detects executables packed with or use KoiVM 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Delays execution with timeout.exe 1 IoCs
- Suspicious behavior: EnumeratesProcesses 25 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 18 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.
Processes
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C:\Users\Admin\AppData\Local\Temp\c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe"C:\Users\Admin\AppData\Local\Temp\c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'3⤵
- Creates scheduled task(s)
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp6DD8.tmp.bat""2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\timeout.exetimeout 33⤵
- Delays execution with timeout.exe
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C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"4⤵
- Checks processor information in registry
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
tmp6DD8.tmp.bat
svchost.exe
memory/2300-1-0x0000027BFDDC0000-0x0000027BFDE36000-memory.dmp
memory/2300-3-0x0000027BFDF50000-0x0000027BFDF60000-memory.dmp
memory/2300-2-0x00007FF9DD320000-0x00007FF9DDDE1000-memory.dmp
memory/2300-4-0x0000027BFD500000-0x0000027BFD51E000-memory.dmp
memory/2300-5-0x0000027BFD660000-0x0000027BFD6C0000-memory.dmp
memory/2300-10-0x00007FF9DD320000-0x00007FF9DDDE1000-memory.dmp
memory/2300-0-0x0000027BFB970000-0x0000027BFB97C000-memory.dmp
memory/2408-19-0x00007FF9DD270000-0x00007FF9DDD31000-memory.dmp
memory/2408-15-0x00007FF9DD270000-0x00007FF9DDD31000-memory.dmp
memory/3260-16-0x0000000000400000-0x000000000040A000-memory.dmp
memory/3260-18-0x0000000005D50000-0x00000000062F4000-memory.dmp
memory/3260-17-0x0000000074D20000-0x00000000754D0000-memory.dmp
memory/3260-20-0x00000000058D0000-0x00000000058E0000-memory.dmp
memory/3260-21-0x0000000005C80000-0x0000000005D1C000-memory.dmp
memory/3260-22-0x0000000006300000-0x0000000006366000-memory.dmp
memory/3260-23-0x0000000074D20000-0x00000000754D0000-memory.dmp
memory/3260-24-0x00000000058D0000-0x00000000058E0000-memory.dmp
memory/3260-25-0x00000000013E0000-0x00000000013F6000-memory.dmp
memory/3260-26-0x00000000067A0000-0x0000000006832000-memory.dmp