asyncrat | a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd

General

Target

a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe
Size

90KB
MD5

fa9a35aa46e8125410e19919c5007d1d
SHA1

fecb72b3eef590a364f2a5c8079d9dc8c8bbebd4
SHA256

a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd
SHA512

b809aabafc3112277c164b35a39b7641529cc27d74e608a408f72244f1c658274a208d56abccde964b1d9c5458f6e7bb367c38f04f984465c4fa57a6ef37fefd
SSDEEP

1536:UMDWyMQnnneVAefyEQmMj99uazMY2cCStPuShSdN20QylgNOmmWB+ByNfu6:UMDWypeVA+yE4hpMBcFwLdkRqgNOmmWD

Score

10^/10

asyncrat 3 discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

3

C2

138.68.81.155:2301

Mutex

2W4KFQzXfKnZ

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Asyncrat family
asyncrat

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1916 set thread context of 1992	1916	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe	31

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1992	RegAsm.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1916 wrote to memory of 1992	1916	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe	31
PID 1916 wrote to memory of 1992	1916	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe	31
PID 1916 wrote to memory of 1992	1916	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe	31
PID 1916 wrote to memory of 1992	1916	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe	31
PID 1916 wrote to memory of 1992	1916	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe	31
PID 1916 wrote to memory of 1992	1916	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe	31
PID 1916 wrote to memory of 1992	1916	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe	31
PID 1916 wrote to memory of 1992	1916	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe	31
PID 1916 wrote to memory of 1992	1916	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe	31
PID 1916 wrote to memory of 1992	1916	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe	31
PID 1916 wrote to memory of 1992	1916	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe	31
PID 1916 wrote to memory of 1992	1916	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe	31

C:\Users\Admin\AppData\Local\Temp\a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe
"C:\Users\Admin\AppData\Local\Temp\a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1916
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  #system32
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1992

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\CabF597.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/1916-0-0x000000007467E000-0x000000007467F000-memory.dmp

Filesize
4KB

Download
memory/1916-1-0x0000000000E40000-0x0000000000E5C000-memory.dmp

Filesize
112KB

Download
memory/1916-2-0x0000000074670000-0x0000000074D5E000-memory.dmp

Filesize
6.9MB

Download
memory/1916-14-0x0000000074670000-0x0000000074D5E000-memory.dmp

Filesize
6.9MB

Download
memory/1992-11-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1992-13-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1992-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1992-6-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1992-5-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1992-3-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1992-9-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1992-4-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download

Analysis

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