asyncrat | 6bd31dfd36ce82e588f37a9ad233c022e0a87b132dc01b93ebbab05b57e5defd

Analysis

max time kernel
149s
max time network
149s
platform
windows11-21h2_x64
resource
win11-20251223-en
resource tags

arch:x64arch:x86image:win11-20251223-enlocale:en-usos:windows11-21h2-x64system
submitted
28/12/2025, 08:24

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General

Target
6bd31dfd36ce82e588f37a9ad233c022e0a87b132dc01b93ebbab05b57e5defd.exe
Size 1.5MB
Sample251228-katc9stmfv
SHA256 6bd31dfd36ce82e588f37a9ad233c022e0a87b132dc01b93ebbab05b57e5defd
MD5 6c3cef3ea655f113fdbfab3b80f87ad6
SHA1 1ab5209c09e5e148885e5be49730ab0e5ae24b45
SHA512 2e3c33fcc6f5919dc07475fc159e9b86eadef31dc168543bc37bd5c77da3c696ce47c87fb13abaf1fe50f76038e1e1a97cd6487a61acb36fd3d58e23ba47e9eb
SSDEEP 24576:X++JEfJhZ8j53sY1jCeqm6qv80MaooQajSMpHYWOkEfW5EQJZrUVvsgMYHQgdUUp:O+a5csqCeq08moPajSQY5HYryHACWlc
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

default discovery asyncrat rat

Malware Config

Extracted

Family

asyncrat

Version

LoaderPanel

Botnet

Default

setkapls77.com:4455
setkapls88.com:4455
setkapls99.com:4455

Mutex

fpmcmyaoygrucczx

Attributes

delay
1
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

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DeleteApp.url	6bd31dfd36ce82e588f37a9ad233c022e0a87b132dc01b93ebbab05b57e5defd.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4796 set thread context of 4424	4796	6bd31dfd36ce82e588f37a9ad233c022e0a87b132dc01b93ebbab05b57e5defd.exe	81
PID 4796 set thread context of 5480	4796	6bd31dfd36ce82e588f37a9ad233c022e0a87b132dc01b93ebbab05b57e5defd.exe	82

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

Suspicious use of AdjustPrivilegeToken 45 IoCs

description	pid	Process
Token: SeDebugPrivilege	4796	6bd31dfd36ce82e588f37a9ad233c022e0a87b132dc01b93ebbab05b57e5defd.exe
Token: SeIncreaseQuotaPrivilege	4784	wmic.exe
Token: SeSecurityPrivilege	4784	wmic.exe
Token: SeTakeOwnershipPrivilege	4784	wmic.exe
Token: SeLoadDriverPrivilege	4784	wmic.exe
Token: SeSystemProfilePrivilege	4784	wmic.exe
Token: SeSystemtimePrivilege	4784	wmic.exe
Token: SeProfSingleProcessPrivilege	4784	wmic.exe
Token: SeIncBasePriorityPrivilege	4784	wmic.exe
Token: SeCreatePagefilePrivilege	4784	wmic.exe
Token: SeBackupPrivilege	4784	wmic.exe
Token: SeRestorePrivilege	4784	wmic.exe
Token: SeShutdownPrivilege	4784	wmic.exe
Token: SeDebugPrivilege	4784	wmic.exe
Token: SeSystemEnvironmentPrivilege	4784	wmic.exe
Token: SeRemoteShutdownPrivilege	4784	wmic.exe
Token: SeUndockPrivilege	4784	wmic.exe
Token: SeManageVolumePrivilege	4784	wmic.exe
Token: 33	4784	wmic.exe
Token: 34	4784	wmic.exe
Token: 35	4784	wmic.exe
Token: 36	4784	wmic.exe
Token: SeIncreaseQuotaPrivilege	4784	wmic.exe
Token: SeSecurityPrivilege	4784	wmic.exe
Token: SeTakeOwnershipPrivilege	4784	wmic.exe
Token: SeLoadDriverPrivilege	4784	wmic.exe
Token: SeSystemProfilePrivilege	4784	wmic.exe
Token: SeSystemtimePrivilege	4784	wmic.exe
Token: SeProfSingleProcessPrivilege	4784	wmic.exe
Token: SeIncBasePriorityPrivilege	4784	wmic.exe
Token: SeCreatePagefilePrivilege	4784	wmic.exe
Token: SeBackupPrivilege	4784	wmic.exe
Token: SeRestorePrivilege	4784	wmic.exe
Token: SeShutdownPrivilege	4784	wmic.exe
Token: SeDebugPrivilege	4784	wmic.exe
Token: SeSystemEnvironmentPrivilege	4784	wmic.exe
Token: SeRemoteShutdownPrivilege	4784	wmic.exe
Token: SeUndockPrivilege	4784	wmic.exe
Token: SeManageVolumePrivilege	4784	wmic.exe
Token: 33	4784	wmic.exe
Token: 34	4784	wmic.exe
Token: 35	4784	wmic.exe
Token: 36	4784	wmic.exe
Token: SeDebugPrivilege	4424	aspnet_compiler.exe
Token: SeDebugPrivilege	5480	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4796 wrote to memory of 4784	4796	6bd31dfd36ce82e588f37a9ad233c022e0a87b132dc01b93ebbab05b57e5defd.exe	79
PID 4796 wrote to memory of 4424	4796	6bd31dfd36ce82e588f37a9ad233c022e0a87b132dc01b93ebbab05b57e5defd.exe	81
PID 4796 wrote to memory of 4424	4796	6bd31dfd36ce82e588f37a9ad233c022e0a87b132dc01b93ebbab05b57e5defd.exe	81
PID 4796 wrote to memory of 4424	4796	6bd31dfd36ce82e588f37a9ad233c022e0a87b132dc01b93ebbab05b57e5defd.exe	81
PID 4796 wrote to memory of 4424	4796	6bd31dfd36ce82e588f37a9ad233c022e0a87b132dc01b93ebbab05b57e5defd.exe	81
PID 4796 wrote to memory of 4424	4796	6bd31dfd36ce82e588f37a9ad233c022e0a87b132dc01b93ebbab05b57e5defd.exe	81
PID 4796 wrote to memory of 5480	4796	6bd31dfd36ce82e588f37a9ad233c022e0a87b132dc01b93ebbab05b57e5defd.exe	82
PID 4796 wrote to memory of 5480	4796	6bd31dfd36ce82e588f37a9ad233c022e0a87b132dc01b93ebbab05b57e5defd.exe	82
PID 4796 wrote to memory of 5480	4796	6bd31dfd36ce82e588f37a9ad233c022e0a87b132dc01b93ebbab05b57e5defd.exe	82
PID 4796 wrote to memory of 5480	4796	6bd31dfd36ce82e588f37a9ad233c022e0a87b132dc01b93ebbab05b57e5defd.exe	82
PID 4796 wrote to memory of 5480	4796	6bd31dfd36ce82e588f37a9ad233c022e0a87b132dc01b93ebbab05b57e5defd.exe	82

C:\Users\Admin\AppData\Local\Temp\6bd31dfd36ce82e588f37a9ad233c022e0a87b132dc01b93ebbab05b57e5defd.exe
"C:\Users\Admin\AppData\Local\Temp\6bd31dfd36ce82e588f37a9ad233c022e0a87b132dc01b93ebbab05b57e5defd.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4796
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" computersystem get domain
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4784
- 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 use of AdjustPrivilegeToken
  PID:4424
- 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 use of AdjustPrivilegeToken
  PID:5480

Network

MITRE ATT&CK Enterprise v16

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

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Downloads

memory/4424-10-0x0000000006C90000-0x0000000007236000-memory.dmp

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memory/4424-5-0x0000000000400000-0x0000000000460000-memory.dmp

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memory/4424-6-0x0000000005870000-0x0000000005880000-memory.dmp

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memory/4424-7-0x00000000057A0000-0x0000000005876000-memory.dmp

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memory/4424-8-0x00000000059E0000-0x0000000005A46000-memory.dmp

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memory/4424-9-0x0000000006640000-0x00000000066D2000-memory.dmp

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memory/4424-11-0x0000000005870000-0x0000000005880000-memory.dmp

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memory/4796-1-0x0000028351AB0000-0x0000028351AC0000-memory.dmp

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memory/4796-2-0x000002834FFA0000-0x000002834FFAA000-memory.dmp

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memory/4796-4-0x0000028351AB0000-0x0000028351AC0000-memory.dmp

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memory/4796-0-0x000002834FA00000-0x000002834FB8C000-memory.dmp

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memory/5480-12-0x0000000000400000-0x0000000000460000-memory.dmp

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memory/5480-13-0x0000000004FE0000-0x00000000050B6000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads