asyncrat | 0fa64bf7de3a0d4c03b232ac612f221fc8355d83d839daba6e1e994f19da8920

Analysis

max time kernel
126s
max time network
137s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-11-2024 14:24

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General

Target

0RYSG_file.exe
Size

1.2MB
MD5

a29f9fc797047681fb4ad3baf2561268
SHA1

1db4c0ad94fc2f66242b9a5b9831d5986e7ab4b5
SHA256

0fa64bf7de3a0d4c03b232ac612f221fc8355d83d839daba6e1e994f19da8920
SHA512

2b7bd847fae905876cd763601673e457b27c22d66d7483eceb32cdcdb82b6b9b7aa49017cf7cb7c715e1909b82850192d3ce2f7b3ce11b68790d91b09c976eb5
SSDEEP

12288:sucNom7i1twdtfp0hgJhtP1XSfSjlASSMCvL0mWWaos2Z2x/bVGpb:sRflp0KhB1/RSMo08aoz

Score

10^/10

asyncrat discovery rat

Malware Config

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 1848 set thread context of 2984	1848	0RYSG_file.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	0RYSG_file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1848	0RYSG_file.exe
1848	0RYSG_file.exe
1848	0RYSG_file.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1848	0RYSG_file.exe
Token: SeDebugPrivilege	2984	InstallUtil.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1848 wrote to memory of 2984	1848	0RYSG_file.exe	31
PID 1848 wrote to memory of 2984	1848	0RYSG_file.exe	31
PID 1848 wrote to memory of 2984	1848	0RYSG_file.exe	31
PID 1848 wrote to memory of 2984	1848	0RYSG_file.exe	31
PID 1848 wrote to memory of 2984	1848	0RYSG_file.exe	31
PID 1848 wrote to memory of 2984	1848	0RYSG_file.exe	31
PID 1848 wrote to memory of 2984	1848	0RYSG_file.exe	31
PID 1848 wrote to memory of 2984	1848	0RYSG_file.exe	31
PID 1848 wrote to memory of 2984	1848	0RYSG_file.exe	31
PID 1848 wrote to memory of 2984	1848	0RYSG_file.exe	31
PID 1848 wrote to memory of 2984	1848	0RYSG_file.exe	31
PID 1848 wrote to memory of 2984	1848	0RYSG_file.exe	31

C:\Users\Admin\AppData\Local\Temp\0RYSG_file.exe
"C:\Users\Admin\AppData\Local\Temp\0RYSG_file.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1848
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2984

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1848-17-0x0000000074080000-0x000000007476E000-memory.dmp

Filesize
6.9MB

Download
memory/1848-1-0x00000000001D0000-0x0000000000312000-memory.dmp

Filesize
1.3MB

Download
memory/1848-2-0x0000000074080000-0x000000007476E000-memory.dmp

Filesize
6.9MB

Download
memory/1848-3-0x0000000002030000-0x0000000002074000-memory.dmp

Filesize
272KB

Download
memory/1848-4-0x000000007408E000-0x000000007408F000-memory.dmp

Filesize
4KB

Download
memory/1848-5-0x0000000074080000-0x000000007476E000-memory.dmp

Filesize
6.9MB

Download
memory/1848-6-0x0000000004250000-0x000000000426A000-memory.dmp

Filesize
104KB

Download
memory/1848-7-0x0000000000580000-0x0000000000586000-memory.dmp

Filesize
24KB

Download
memory/1848-8-0x0000000074080000-0x000000007476E000-memory.dmp

Filesize
6.9MB

Download
memory/1848-25-0x0000000074080000-0x000000007476E000-memory.dmp

Filesize
6.9MB

Download
memory/1848-0-0x000000007408E000-0x000000007408F000-memory.dmp

Filesize
4KB

Download
memory/2984-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2984-13-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2984-9-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2984-14-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2984-18-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2984-23-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2984-20-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2984-26-0x0000000074080000-0x000000007476E000-memory.dmp

Filesize
6.9MB

Download
memory/2984-11-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2984-24-0x0000000074080000-0x000000007476E000-memory.dmp

Filesize
6.9MB

Download
memory/2984-27-0x0000000074080000-0x000000007476E000-memory.dmp

Filesize
6.9MB

Download