asyncrat | c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2

Analysis

max time kernel
93s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08/11/2024, 03:47

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General

Target

c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe
Size

930KB
MD5

de04168171981a90f56a126ec055ba19
SHA1

766704b6e12a7db436663eb7e287160e736979b7
SHA256

c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2
SHA512

784f4b6954a56e2f09f3b3f1d29ae6d1ad14c814f3aad6391972654c398c68bcf7745902c368cbfcb8778f16cb33aa62210c937d48e6d8876d567fcd2a657013
SSDEEP

12288:lS6vgPZN3V4smWPc7H3/BPyf13SFyIz8VOHa8ASSMCFFi0mWWaos2Z8kM+:06vqtcDZPyf13WyODSMyc08aoz8kM

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 1132 set thread context of 2384	1132	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe	89

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	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1132	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe
1132	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe
1132	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1132	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe
Token: SeDebugPrivilege	2384	MSBuild.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1132 wrote to memory of 2384	1132	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe	89
PID 1132 wrote to memory of 2384	1132	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe	89
PID 1132 wrote to memory of 2384	1132	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe	89
PID 1132 wrote to memory of 2384	1132	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe	89
PID 1132 wrote to memory of 2384	1132	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe	89
PID 1132 wrote to memory of 2384	1132	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe	89
PID 1132 wrote to memory of 2384	1132	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe	89
PID 1132 wrote to memory of 2384	1132	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe	89

C:\Users\Admin\AppData\Local\Temp\c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe
"C:\Users\Admin\AppData\Local\Temp\c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1132
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2384

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/1132-10-0x00000000072F0000-0x00000000072F6000-memory.dmp

Filesize
24KB

Download
memory/1132-1-0x0000000000600000-0x00000000006EE000-memory.dmp

Filesize
952KB

Download
memory/1132-2-0x0000000005380000-0x0000000005412000-memory.dmp

Filesize
584KB

Download
memory/1132-3-0x0000000005420000-0x00000000054BC000-memory.dmp

Filesize
624KB

Download
memory/1132-4-0x00000000752C0000-0x0000000075A70000-memory.dmp

Filesize
7.7MB

Download
memory/1132-5-0x00000000052E0000-0x0000000005324000-memory.dmp

Filesize
272KB

Download
memory/1132-6-0x0000000005C70000-0x0000000006214000-memory.dmp

Filesize
5.6MB

Download
memory/1132-7-0x00000000058E0000-0x00000000058EA000-memory.dmp

Filesize
40KB

Download
memory/1132-9-0x00000000072D0000-0x00000000072EA000-memory.dmp

Filesize
104KB

Download
memory/1132-8-0x00000000752C0000-0x0000000075A70000-memory.dmp

Filesize
7.7MB

Download
memory/1132-12-0x00000000752C0000-0x0000000075A70000-memory.dmp

Filesize
7.7MB

Download
memory/1132-11-0x00000000752CE000-0x00000000752CF000-memory.dmp

Filesize
4KB

Download
memory/1132-0-0x00000000752CE000-0x00000000752CF000-memory.dmp

Filesize
4KB

Download
memory/1132-15-0x00000000752C0000-0x0000000075A70000-memory.dmp

Filesize
7.7MB

Download
memory/2384-16-0x00000000752C0000-0x0000000075A70000-memory.dmp

Filesize
7.7MB

Download
memory/2384-13-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2384-17-0x00000000752C0000-0x0000000075A70000-memory.dmp

Filesize
7.7MB

Download
memory/2384-20-0x00000000066E0000-0x0000000006746000-memory.dmp

Filesize
408KB

Download
memory/2384-21-0x00000000752C0000-0x0000000075A70000-memory.dmp

Filesize
7.7MB

Download
memory/2384-22-0x00000000752C0000-0x0000000075A70000-memory.dmp

Filesize
7.7MB

Download