asyncrat | 782002e0f8ad2bb96d89bf0404ec3a64668960141afef49c0dd9a226eb80bdf6

General

Target

782002e0f8ad2bb96d89bf0404ec3a64668960141afef49c0dd9a226eb80bdf6.ps1
Size

453KB
MD5

026927d6f8c95796171f4b5726827317
SHA1

02268fbe1e410822d9af6ce9e569818bbbe38f3a
SHA256

782002e0f8ad2bb96d89bf0404ec3a64668960141afef49c0dd9a226eb80bdf6
SHA512

50268beb68995b83ac689fb9dabd839b758fb7260e626d7fdf492d99325ceca94014b1e97f8c7209f5195cf3a75d4efbb2ccc4d561b10ec73d576f39bd219323
SSDEEP

3072:z+PE+NPVFL2bUCUrNlKomLJVlCsspSljq:UE+NPVFL2bUCUrNlKomLJVlCsspSl2

Score

10^/10

asyncrat 00000001 discovery execution rat

Malware Config

Extracted

Family

asyncrat

Version

AWS | 3Losh

Botnet

00000001

C2

81.10.39.58:7077

Mutex

AsyncMutex_alosh

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 3496 set thread context of 3800	3496	powershell.exe	86

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
3496	powershell.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	aspnet_compiler.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
3496	powershell.exe
3496	powershell.exe
3496	powershell.exe
3496	powershell.exe
3496	powershell.exe
3496	powershell.exe
3800	aspnet_compiler.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3496	powershell.exe
Token: SeDebugPrivilege	3800	aspnet_compiler.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3800	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3496 wrote to memory of 3784	3496	powershell.exe	84
PID 3496 wrote to memory of 3784	3496	powershell.exe	84
PID 3496 wrote to memory of 3784	3496	powershell.exe	84
PID 3496 wrote to memory of 2404	3496	powershell.exe	85
PID 3496 wrote to memory of 2404	3496	powershell.exe	85
PID 3496 wrote to memory of 2404	3496	powershell.exe	85
PID 3496 wrote to memory of 3800	3496	powershell.exe	86
PID 3496 wrote to memory of 3800	3496	powershell.exe	86
PID 3496 wrote to memory of 3800	3496	powershell.exe	86
PID 3496 wrote to memory of 3800	3496	powershell.exe	86
PID 3496 wrote to memory of 3800	3496	powershell.exe	86
PID 3496 wrote to memory of 3800	3496	powershell.exe	86
PID 3496 wrote to memory of 3800	3496	powershell.exe	86
PID 3496 wrote to memory of 3800	3496	powershell.exe	86

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\782002e0f8ad2bb96d89bf0404ec3a64668960141afef49c0dd9a226eb80bdf6.ps1
1⤵
- Suspicious use of SetThreadContext
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3496
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:3784
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:2404
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3800

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

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\__PSScriptPolicyTest_e1nre4p5.wda.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3496-17-0x00007FF8E28C0000-0x00007FF8E3381000-memory.dmp

Filesize
10.8MB

Download
memory/3496-1-0x00007FF8E28C0000-0x00007FF8E3381000-memory.dmp

Filesize
10.8MB

Download
memory/3496-11-0x0000016CA97D0000-0x0000016CA97F2000-memory.dmp

Filesize
136KB

Download
memory/3496-12-0x00007FF8E28C0000-0x00007FF8E3381000-memory.dmp

Filesize
10.8MB

Download
memory/3496-13-0x0000016CA9810000-0x0000016CA981C000-memory.dmp

Filesize
48KB

Download
memory/3496-0-0x00007FF8E28C3000-0x00007FF8E28C5000-memory.dmp

Filesize
8KB

Download
memory/3800-14-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/3800-18-0x000000007498E000-0x000000007498F000-memory.dmp

Filesize
4KB

Download
memory/3800-19-0x0000000074980000-0x0000000075130000-memory.dmp

Filesize
7.7MB

Download
memory/3800-20-0x0000000005A10000-0x0000000005FB4000-memory.dmp

Filesize
5.6MB

Download
memory/3800-21-0x0000000005600000-0x0000000005692000-memory.dmp

Filesize
584KB

Download
memory/3800-22-0x00000000056A0000-0x00000000056AA000-memory.dmp

Filesize
40KB

Download
memory/3800-23-0x000000007498E000-0x000000007498F000-memory.dmp

Filesize
4KB

Download
memory/3800-24-0x0000000074980000-0x0000000075130000-memory.dmp

Filesize
7.7MB

Download

Analysis

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