Analysis
- max time kernel
64s - max time network
161s - platform
windows10_x64 - resource
win10-en-20210920 - submitted
19/10/2021, 09:45
Static task
static1
Behavioral task
behavioral1
Sample
Server1.ps1
Resource
win7-en-20211014
0 signatures
0 seconds
General
- Target Server1.ps1
- Size 963KB
- Sample211019-lq4plsgdfj
- SHA256 a341b8f10a51457c11292173cfa48fe49256c9ccef8ec045753b49b2bfa935d6
- MD5 5995285834997162a85fa2fa235faebf
- SHA1 82f1e8e87c9b0f81a73b8af0369d09c8f8eb5ac9
- SHA512 e954da715ceae26b60e03fc7d92a27aacdfa371a816880e25b56a22a252f7505167f94ddb1f498ba5659c40a14dc92528f04e2d67779a6b242998edbe0a7728c
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
-
asyncrat
Version
-
1.0.7
Botnet
-
Default
C2
-
139.28.37.182:5200
Mutex
-
DcRatMutex_qwqdanchun
Attributes
-
anti_vm
false
-
bsod
false
-
delay
1
-
install
false
-
install_folder
%AppData%
-
pastebin_config
null
aes.plain
Signatures
- Async RAT payload 2 IoCs
resource yara_rule behavioral2/memory/420-139-0x000000000040CB8E-mapping.dmp asyncrat behavioral2/memory/420-142-0x0000000000DE0000-0x0000000000DF2000-memory.dmp asyncrat - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1828 set thread context of 420 1828 powershell.exe 71 - Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1828 powershell.exe 1828 powershell.exe 1828 powershell.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1828 powershell.exe Token: SeDebugPrivilege 420 aspnet_compiler.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1828 wrote to memory of 420 1828 powershell.exe 71 PID 1828 wrote to memory of 420 1828 powershell.exe 71 PID 1828 wrote to memory of 420 1828 powershell.exe 71 PID 1828 wrote to memory of 420 1828 powershell.exe 71 PID 1828 wrote to memory of 420 1828 powershell.exe 71 PID 1828 wrote to memory of 420 1828 powershell.exe 71 PID 1828 wrote to memory of 420 1828 powershell.exe 71 PID 1828 wrote to memory of 420 1828 powershell.exe 71
Processes
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\Server1.ps11⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1828 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"2⤵
- Suspicious use of AdjustPrivilegeToken
PID:420
-