asyncrat | ada9fecb83be43148381062fd3ac66976e2ef76b59a855eb3f0a351ce5ee7b67

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-11-2024 08:01

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General

Target

7867189a85c6e08b287e9d6760a1c3fd.exe
Size

5.0MB
MD5

7867189a85c6e08b287e9d6760a1c3fd
SHA1

4700de2b6b080b206743c96ba76e2b2f713331b6
SHA256

ada9fecb83be43148381062fd3ac66976e2ef76b59a855eb3f0a351ce5ee7b67
SHA512

ed7b8ba643df6bf3ae0b419fe88011a055ba353357affcdaede987fffcc0ffc43daf311b564ba53bf58d607ba20b92357fd84daa699abad3b09195e116a5ab6d
SSDEEP

49152:Mr9PwJV/h8p/gehHoe2uN8KjVR8dnyvr42jZ2062zJerF0/3g9j+TBEzW07kKz8s:KPIVZ8pDhH0uN8QRVM2IrMQFtD5XJ

Score

10^/10

asyncrat default execution rat

Malware Config

Extracted

Family

asyncrat

Version

AWS | 3Losh

Botnet

Default

51.222.21.24:6606

51.222.21.24:7707

51.222.21.24:8808

Mutex

AsyncMutex_alosh

Attributes

delay
3
install
false
install_file
newbuild.exe
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

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3580-29-0x0000000002570000-0x0000000002586000-memory.dmp	family_asyncrat

Loads dropped DLL 3 IoCs

Processes:

regsvr32.exeregsvr32.EXEregsvr32.EXE

pid	Process
3580	regsvr32.exe
3212	regsvr32.EXE
2832	regsvr32.EXE

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to execute payload.

execution

PowerShell

T1059.001

Processes:

powershell.exe

pid	Process
4732	powershell.exe
4732	powershell.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

powershell.exeregsvr32.exe

pid	Process
4732	powershell.exe
4732	powershell.exe
3580	regsvr32.exe
3580	regsvr32.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

powershell.exe

description	pid	Process
Token: SeDebugPrivilege	4732	powershell.exe
Token: SeIncreaseQuotaPrivilege	4732	powershell.exe
Token: SeSecurityPrivilege	4732	powershell.exe
Token: SeTakeOwnershipPrivilege	4732	powershell.exe
Token: SeLoadDriverPrivilege	4732	powershell.exe
Token: SeSystemProfilePrivilege	4732	powershell.exe
Token: SeSystemtimePrivilege	4732	powershell.exe
Token: SeProfSingleProcessPrivilege	4732	powershell.exe
Token: SeIncBasePriorityPrivilege	4732	powershell.exe
Token: SeCreatePagefilePrivilege	4732	powershell.exe
Token: SeBackupPrivilege	4732	powershell.exe
Token: SeRestorePrivilege	4732	powershell.exe
Token: SeShutdownPrivilege	4732	powershell.exe
Token: SeDebugPrivilege	4732	powershell.exe
Token: SeSystemEnvironmentPrivilege	4732	powershell.exe
Token: SeRemoteShutdownPrivilege	4732	powershell.exe
Token: SeUndockPrivilege	4732	powershell.exe
Token: SeManageVolumePrivilege	4732	powershell.exe
Token: 33	4732	powershell.exe
Token: 34	4732	powershell.exe
Token: 35	4732	powershell.exe
Token: 36	4732	powershell.exe
Token: SeIncreaseQuotaPrivilege	4732	powershell.exe
Token: SeSecurityPrivilege	4732	powershell.exe
Token: SeTakeOwnershipPrivilege	4732	powershell.exe
Token: SeLoadDriverPrivilege	4732	powershell.exe
Token: SeSystemProfilePrivilege	4732	powershell.exe
Token: SeSystemtimePrivilege	4732	powershell.exe
Token: SeProfSingleProcessPrivilege	4732	powershell.exe
Token: SeIncBasePriorityPrivilege	4732	powershell.exe
Token: SeCreatePagefilePrivilege	4732	powershell.exe
Token: SeBackupPrivilege	4732	powershell.exe
Token: SeRestorePrivilege	4732	powershell.exe
Token: SeShutdownPrivilege	4732	powershell.exe
Token: SeDebugPrivilege	4732	powershell.exe
Token: SeSystemEnvironmentPrivilege	4732	powershell.exe
Token: SeRemoteShutdownPrivilege	4732	powershell.exe
Token: SeUndockPrivilege	4732	powershell.exe
Token: SeManageVolumePrivilege	4732	powershell.exe
Token: 33	4732	powershell.exe
Token: 34	4732	powershell.exe
Token: 35	4732	powershell.exe
Token: 36	4732	powershell.exe
Token: SeIncreaseQuotaPrivilege	4732	powershell.exe
Token: SeSecurityPrivilege	4732	powershell.exe
Token: SeTakeOwnershipPrivilege	4732	powershell.exe
Token: SeLoadDriverPrivilege	4732	powershell.exe
Token: SeSystemProfilePrivilege	4732	powershell.exe
Token: SeSystemtimePrivilege	4732	powershell.exe
Token: SeProfSingleProcessPrivilege	4732	powershell.exe
Token: SeIncBasePriorityPrivilege	4732	powershell.exe
Token: SeCreatePagefilePrivilege	4732	powershell.exe
Token: SeBackupPrivilege	4732	powershell.exe
Token: SeRestorePrivilege	4732	powershell.exe
Token: SeShutdownPrivilege	4732	powershell.exe
Token: SeDebugPrivilege	4732	powershell.exe
Token: SeSystemEnvironmentPrivilege	4732	powershell.exe
Token: SeRemoteShutdownPrivilege	4732	powershell.exe
Token: SeUndockPrivilege	4732	powershell.exe
Token: SeManageVolumePrivilege	4732	powershell.exe
Token: 33	4732	powershell.exe
Token: 34	4732	powershell.exe
Token: 35	4732	powershell.exe
Token: 36	4732	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

regsvr32.exe

pid	Process
3580	regsvr32.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

7867189a85c6e08b287e9d6760a1c3fd.exe

description	pid	Process	procid_target
PID 2808 wrote to memory of 4732	2808	7867189a85c6e08b287e9d6760a1c3fd.exe	93
PID 2808 wrote to memory of 4732	2808	7867189a85c6e08b287e9d6760a1c3fd.exe	93
PID 2808 wrote to memory of 3580	2808	7867189a85c6e08b287e9d6760a1c3fd.exe	98
PID 2808 wrote to memory of 3580	2808	7867189a85c6e08b287e9d6760a1c3fd.exe	98

C:\Users\Admin\AppData\Local\Temp\7867189a85c6e08b287e9d6760a1c3fd.exe
"C:\Users\Admin\AppData\Local\Temp\7867189a85c6e08b287e9d6760a1c3fd.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2808
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell" "Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute \"regsvr32\" -Argument \"/S /i:INSTALL C:\Users\Admin\AppData/Roaming/QVVj.ini\") -Trigger (New-ScheduledTaskTrigger -Once -At (Get-Date).AddMinutes(1) -RepetitionInterval (New-TimeSpan -Minutes 1)) -TaskName 'MicrosoftEdgeUpdateTaskMachineUA{3BD118F1-6259-4413-BC1B-9EDD58DAD778}' -Description 'Default' -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DontStopIfGoingOnBatteries) -RunLevel Highest"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4732
- C:\Windows\system32\regsvr32.exe
  "regsvr32" /i:INSTALL /s C:\Users\Admin\AppData/Roaming/QVVj.ini
  2⤵
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:3580

C:\Windows\system32\regsvr32.EXE
C:\Windows\system32\regsvr32.EXE /S /i:INSTALL C:\Users\Admin\AppData/Roaming/QVVj.ini
1⤵
- Loads dropped DLL
PID:3212

C:\Windows\system32\regsvr32.EXE
C:\Windows\system32\regsvr32.EXE /S /i:INSTALL C:\Users\Admin\AppData/Roaming/QVVj.ini
1⤵
- Loads dropped DLL
PID:2832

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_g5ms00ig.fjd.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\QVVj.ini

Filesize
1.4MB

MD5
34c7320d228c3b74c86d5c45d198d401

SHA1
7fe44d187c04c500babbf2184f38775789354543

SHA256
6f826f201973fa08f8fbaadabcce54df25fb4b79359f5c80134fb1735dd6171e

SHA512
5d584e0fd576018c9d362349f66a7ff07d55bb8d31ce1c0a939279309b1711101695160ba53c369afcf90adb8bee24924978d671e14d1832b92990895c0658f5

Download Submit
memory/2808-22-0x00007FF682DB0000-0x00007FF6832B0000-memory.dmp

Filesize
5.0MB

Download
memory/2808-0-0x000002E14D120000-0x000002E14D121000-memory.dmp

Filesize
4KB

Download
memory/2808-32-0x00007FF682DB0000-0x00007FF6832B0000-memory.dmp

Filesize
5.0MB

Download
memory/3580-34-0x0000000002450000-0x0000000002550000-memory.dmp

Filesize
1024KB

Download
memory/3580-33-0x00007FFAA3450000-0x00007FFAA3570000-memory.dmp

Filesize
1.1MB

Download
memory/3580-29-0x0000000002570000-0x0000000002586000-memory.dmp

Filesize
88KB

Download
memory/3580-28-0x0000000002450000-0x0000000002550000-memory.dmp

Filesize
1024KB

Download
memory/4732-13-0x00007FFAA03C0000-0x00007FFAA0E81000-memory.dmp

Filesize
10.8MB

Download
memory/4732-20-0x00007FFAA03C0000-0x00007FFAA0E81000-memory.dmp

Filesize
10.8MB

Download
memory/4732-16-0x00007FFAA03C0000-0x00007FFAA0E81000-memory.dmp

Filesize
10.8MB

Download
memory/4732-15-0x00007FFAA03C0000-0x00007FFAA0E81000-memory.dmp

Filesize
10.8MB

Download
memory/4732-14-0x00007FFAA03C0000-0x00007FFAA0E81000-memory.dmp

Filesize
10.8MB

Download
memory/4732-3-0x000001E6CE790000-0x000001E6CE7B2000-memory.dmp

Filesize
136KB

Download
memory/4732-2-0x00007FFAA03C3000-0x00007FFAA03C5000-memory.dmp

Filesize
8KB

Download