asyncrat | 7266a6dc1df61156179dbe47ebdebeec58a102424b2d810c5dd4986a3ea4d61c

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20250207-en
resource tags

arch:x64arch:x86image:win10v2004-20250207-enlocale:en-usos:windows10-2004-x64system
submitted
07-02-2025 15:45

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General

Target

random.exe
Size

6.1MB
MD5

113461458c920597c8529c301de52645
SHA1

c55d0860598fcb41cbe46431b431713c58b7608e
SHA256

7266a6dc1df61156179dbe47ebdebeec58a102424b2d810c5dd4986a3ea4d61c
SHA512

cdf4749ca7f39fd33ddc36ca3da9425acf303e111919020c35c23e702e51747bb7de70475e61199eea66998556968d928bdcda9f898688c9d8925805316cd1a1
SSDEEP

196608:4Vrk/RaXt4S0LHYaTSxyVrk/RaXt4S0LHYaTSxM:4BC8a0hcBC8a0hK

Score

10^/10

asyncrat stormkitty discovery rat stealer

Malware Config

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Asyncrat family
asyncrat
StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 1 IoCs

resource	yara_rule
behavioral2/memory/4704-5-0x0000000000400000-0x0000000000704000-memory.dmp	family_stormkitty

Stormkitty family
stormkitty

.NET Reactor proctector 1 IoCs

Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

resource	yara_rule
behavioral2/memory/5100-1-0x00000000009A0000-0x0000000000FB6000-memory.dmp	net_reactor

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5100 set thread context of 4704	5100	random.exe	79

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4380	5100	WerFault.exe	78
3028	4704	WerFault.exe	79

System Location Discovery: System Language Discovery 1 TTPs 3 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	random.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	random.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4896	MicrosoftEdgeUpdate.exe
4896	MicrosoftEdgeUpdate.exe
4896	MicrosoftEdgeUpdate.exe
4896	MicrosoftEdgeUpdate.exe

Suspicious use of AdjustPrivilegeToken 44 IoCs

description	pid	Process
Token: SeDebugPrivilege	4704	random.exe
Token: SeIncreaseQuotaPrivilege	4704	random.exe
Token: SeSecurityPrivilege	4704	random.exe
Token: SeTakeOwnershipPrivilege	4704	random.exe
Token: SeLoadDriverPrivilege	4704	random.exe
Token: SeSystemProfilePrivilege	4704	random.exe
Token: SeSystemtimePrivilege	4704	random.exe
Token: SeProfSingleProcessPrivilege	4704	random.exe
Token: SeIncBasePriorityPrivilege	4704	random.exe
Token: SeCreatePagefilePrivilege	4704	random.exe
Token: SeBackupPrivilege	4704	random.exe
Token: SeRestorePrivilege	4704	random.exe
Token: SeShutdownPrivilege	4704	random.exe
Token: SeDebugPrivilege	4704	random.exe
Token: SeSystemEnvironmentPrivilege	4704	random.exe
Token: SeRemoteShutdownPrivilege	4704	random.exe
Token: SeUndockPrivilege	4704	random.exe
Token: SeManageVolumePrivilege	4704	random.exe
Token: 33	4704	random.exe
Token: 34	4704	random.exe
Token: 35	4704	random.exe
Token: 36	4704	random.exe
Token: SeIncreaseQuotaPrivilege	4704	random.exe
Token: SeSecurityPrivilege	4704	random.exe
Token: SeTakeOwnershipPrivilege	4704	random.exe
Token: SeLoadDriverPrivilege	4704	random.exe
Token: SeSystemProfilePrivilege	4704	random.exe
Token: SeSystemtimePrivilege	4704	random.exe
Token: SeProfSingleProcessPrivilege	4704	random.exe
Token: SeIncBasePriorityPrivilege	4704	random.exe
Token: SeCreatePagefilePrivilege	4704	random.exe
Token: SeBackupPrivilege	4704	random.exe
Token: SeRestorePrivilege	4704	random.exe
Token: SeShutdownPrivilege	4704	random.exe
Token: SeDebugPrivilege	4704	random.exe
Token: SeSystemEnvironmentPrivilege	4704	random.exe
Token: SeRemoteShutdownPrivilege	4704	random.exe
Token: SeUndockPrivilege	4704	random.exe
Token: SeManageVolumePrivilege	4704	random.exe
Token: 33	4704	random.exe
Token: 34	4704	random.exe
Token: 35	4704	random.exe
Token: 36	4704	random.exe
Token: SeDebugPrivilege	4896	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 5100 wrote to memory of 4704	5100	random.exe	79
PID 5100 wrote to memory of 4704	5100	random.exe	79
PID 5100 wrote to memory of 4704	5100	random.exe	79
PID 5100 wrote to memory of 4704	5100	random.exe	79
PID 5100 wrote to memory of 4704	5100	random.exe	79
PID 5100 wrote to memory of 4704	5100	random.exe	79
PID 5100 wrote to memory of 4704	5100	random.exe	79
PID 5100 wrote to memory of 4704	5100	random.exe	79

C:\Users\Admin\AppData\Local\Temp\random.exe
"C:\Users\Admin\AppData\Local\Temp\random.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5100
- C:\Users\Admin\AppData\Local\Temp\random.exe
  "C:\Users\Admin\AppData\Local\Temp\random.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4704
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 1352
    3⤵
    - Program crash
    PID:3028
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5100 -s 840
  2⤵
  - Program crash
  PID:4380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5100 -ip 5100
1⤵
PID:4568

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4704 -ip 4704
1⤵
PID:1592

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ua /installsource scheduler
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4896

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/4704-5-0x0000000000400000-0x0000000000704000-memory.dmp

Filesize
3.0MB

Download
memory/4704-7-0x0000000074580000-0x0000000074D30000-memory.dmp

Filesize
7.7MB

Download
memory/4704-8-0x0000000074580000-0x0000000074D30000-memory.dmp

Filesize
7.7MB

Download
memory/4704-10-0x0000000005C80000-0x0000000005CE6000-memory.dmp

Filesize
408KB

Download
memory/4704-11-0x0000000074580000-0x0000000074D30000-memory.dmp

Filesize
7.7MB

Download
memory/5100-0-0x000000007458E000-0x000000007458F000-memory.dmp

Filesize
4KB

Download
memory/5100-1-0x00000000009A0000-0x0000000000FB6000-memory.dmp

Filesize
6.1MB

Download
memory/5100-2-0x0000000074580000-0x0000000074D30000-memory.dmp

Filesize
7.7MB

Download
memory/5100-3-0x0000000005EA0000-0x0000000006444000-memory.dmp

Filesize
5.6MB

Download
memory/5100-6-0x0000000074580000-0x0000000074D30000-memory.dmp

Filesize
7.7MB

Download
memory/5100-9-0x0000000074580000-0x0000000074D30000-memory.dmp

Filesize
7.7MB

Download