asyncrat | 9994b9e197b422529221de7238dc0e44ae21e66d78c48355f31837c3696ec90e

Analysis

max time kernel
148s
max time network
161s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-12-2024 05:29

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General

Target

9bdc43df16cff6db219f2d3dd4a1e4b650262e73f98d2264926b90664942c187.ps1
Size

446KB
MD5

b5c90bb64c65c7dc4bb82301d04cb3a5
SHA1

dc608bf3c1f20d5584a4c4fafc353e5569b6ac2b
SHA256

9bdc43df16cff6db219f2d3dd4a1e4b650262e73f98d2264926b90664942c187
SHA512

06154870d8c572c3687c6bdc44546c0642fde0d4554380a103712c2c8045b56743459af525e374acd6241b66c28c7102ebb101e786b08a725280384bcef6073c
SSDEEP

3072:dqslZ+EZdDeUqAR2xEU2kwom+weekljaPC7b8fjEfxkBtXuVDLQ4:dq0+CdDeU/2xD2kxm+J5l14jEH

Score

10^/10

asyncrat foco-winpax discovery execution rat

Malware Config

Extracted

Family

asyncrat

Version

AWS | 3Losh

Botnet

FOCO-WINPAX

cdt2023.ddns.net:6606

cdt2023.ddns.net:7707

cdt2023.ddns.net:8808

cdt2023.ddns.net:3313

cdt2023.ddns.net:3314

cdt2023.ddns.net:9441

cdt2023.ddns.net:9442

cdt2023.ddns.net:9443

cdt2023.ddns.net:2900

cdt2023.ddns.net:1018

cdt2023.ddns.net:2019

cdt2023.ddns.net:2020

cdt2023.ddns.net:2021

cdt2023.ddns.net:5155

cdt2023.ddns.net:6666

cdt2023.ddns.net:9999

cdt2023.ddns.net:5505

chromedata.accesscam.org:6606

chromedata.accesscam.org:7707

chromedata.accesscam.org:8808

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
false
install_file
svchost.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

Suspicious use of SetThreadContext 6 IoCs

description	pid	Process	procid_target
PID 4020 set thread context of 4580	4020	powershell.exe	82
PID 4020 set thread context of 3604	4020	powershell.exe	83
PID 4020 set thread context of 3532	4020	powershell.exe	84
PID 4020 set thread context of 1060	4020	powershell.exe	85
PID 4020 set thread context of 4800	4020	powershell.exe	86
PID 4020 set thread context of 3304	4020	powershell.exe	87

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\AppCompat\Programs\Amcache.hve.tmp	dw20.exe
File created	C:\Windows\AppCompat\Programs\Amcache.hve.tmp	dw20.exe
File created	C:\Windows\AppCompat\Programs\Amcache.hve.tmp	dw20.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4020	powershell.exe

System Location Discovery: System Language Discovery 1 TTPs 10 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	dw20.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dw20.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Msbuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aspnet_regbrowsers.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Msbuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dw20.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dw20.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aspnet_regbrowsers.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Checks processor information in registry 2 TTPs 12 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe

Enumerates system info in registry 2 TTPs 8 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4020	powershell.exe
4020	powershell.exe
4020	powershell.exe

Suspicious use of AdjustPrivilegeToken 31 IoCs

description	pid	Process
Token: SeDebugPrivilege	4020	powershell.exe
Token: SeRestorePrivilege	3308	dw20.exe
Token: SeBackupPrivilege	3308	dw20.exe
Token: SeRestorePrivilege	2452	dw20.exe
Token: SeBackupPrivilege	2452	dw20.exe
Token: SeRestorePrivilege	2920	dw20.exe
Token: SeBackupPrivilege	2920	dw20.exe
Token: SeRestorePrivilege	2752	dw20.exe
Token: SeBackupPrivilege	2752	dw20.exe
Token: SeBackupPrivilege	2920	dw20.exe
Token: SeBackupPrivilege	2752	dw20.exe
Token: SeBackupPrivilege	2452	dw20.exe
Token: SeBackupPrivilege	2920	dw20.exe
Token: SeBackupPrivilege	2452	dw20.exe
Token: SeBackupPrivilege	2452	dw20.exe
Token: SeBackupPrivilege	2920	dw20.exe
Token: SeBackupPrivilege	2452	dw20.exe
Token: SeBackupPrivilege	2920	dw20.exe
Token: SeBackupPrivilege	2920	dw20.exe
Token: SeBackupPrivilege	2452	dw20.exe
Token: SeBackupPrivilege	2920	dw20.exe
Token: SeBackupPrivilege	2452	dw20.exe
Token: SeBackupPrivilege	2452	dw20.exe
Token: SeBackupPrivilege	2920	dw20.exe
Token: SeBackupPrivilege	2452	dw20.exe
Token: SeBackupPrivilege	2920	dw20.exe
Token: SeBackupPrivilege	2752	dw20.exe
Token: SeBackupPrivilege	2752	dw20.exe
Token: SeBackupPrivilege	3308	dw20.exe
Token: SeBackupPrivilege	3308	dw20.exe
Token: SeDebugPrivilege	3604	aspnet_regbrowsers.exe

Suspicious use of WriteProcessMemory 60 IoCs

description	pid	Process	procid_target
PID 4020 wrote to memory of 4580	4020	powershell.exe	82
PID 4020 wrote to memory of 4580	4020	powershell.exe	82
PID 4020 wrote to memory of 4580	4020	powershell.exe	82
PID 4020 wrote to memory of 4580	4020	powershell.exe	82
PID 4020 wrote to memory of 4580	4020	powershell.exe	82
PID 4020 wrote to memory of 4580	4020	powershell.exe	82
PID 4020 wrote to memory of 4580	4020	powershell.exe	82
PID 4020 wrote to memory of 4580	4020	powershell.exe	82
PID 4020 wrote to memory of 3604	4020	powershell.exe	83
PID 4020 wrote to memory of 3604	4020	powershell.exe	83
PID 4020 wrote to memory of 3604	4020	powershell.exe	83
PID 4020 wrote to memory of 3604	4020	powershell.exe	83
PID 4020 wrote to memory of 3604	4020	powershell.exe	83
PID 4020 wrote to memory of 3604	4020	powershell.exe	83
PID 4020 wrote to memory of 3604	4020	powershell.exe	83
PID 4020 wrote to memory of 3604	4020	powershell.exe	83
PID 4020 wrote to memory of 3532	4020	powershell.exe	84
PID 4020 wrote to memory of 3532	4020	powershell.exe	84
PID 4020 wrote to memory of 3532	4020	powershell.exe	84
PID 4020 wrote to memory of 3532	4020	powershell.exe	84
PID 4020 wrote to memory of 3532	4020	powershell.exe	84
PID 4020 wrote to memory of 3532	4020	powershell.exe	84
PID 4020 wrote to memory of 3532	4020	powershell.exe	84
PID 4020 wrote to memory of 3532	4020	powershell.exe	84
PID 4020 wrote to memory of 1060	4020	powershell.exe	85
PID 4020 wrote to memory of 1060	4020	powershell.exe	85
PID 4020 wrote to memory of 1060	4020	powershell.exe	85
PID 4020 wrote to memory of 1060	4020	powershell.exe	85
PID 4020 wrote to memory of 1060	4020	powershell.exe	85
PID 4020 wrote to memory of 1060	4020	powershell.exe	85
PID 4020 wrote to memory of 1060	4020	powershell.exe	85
PID 4020 wrote to memory of 1060	4020	powershell.exe	85
PID 4020 wrote to memory of 4800	4020	powershell.exe	86
PID 4020 wrote to memory of 4800	4020	powershell.exe	86
PID 4020 wrote to memory of 4800	4020	powershell.exe	86
PID 4020 wrote to memory of 4800	4020	powershell.exe	86
PID 4020 wrote to memory of 4800	4020	powershell.exe	86
PID 4020 wrote to memory of 4800	4020	powershell.exe	86
PID 4020 wrote to memory of 4800	4020	powershell.exe	86
PID 4020 wrote to memory of 4800	4020	powershell.exe	86
PID 4020 wrote to memory of 3304	4020	powershell.exe	87
PID 4020 wrote to memory of 3304	4020	powershell.exe	87
PID 4020 wrote to memory of 3304	4020	powershell.exe	87
PID 4020 wrote to memory of 3304	4020	powershell.exe	87
PID 4020 wrote to memory of 3304	4020	powershell.exe	87
PID 4020 wrote to memory of 3304	4020	powershell.exe	87
PID 4020 wrote to memory of 3304	4020	powershell.exe	87
PID 4020 wrote to memory of 3304	4020	powershell.exe	87
PID 3532 wrote to memory of 3308	3532	RegSvcs.exe	88
PID 4800 wrote to memory of 2752	4800	Msbuild.exe	89
PID 3532 wrote to memory of 3308	3532	RegSvcs.exe	88
PID 4800 wrote to memory of 2752	4800	Msbuild.exe	89
PID 4800 wrote to memory of 2752	4800	Msbuild.exe	89
PID 3532 wrote to memory of 3308	3532	RegSvcs.exe	88
PID 3304 wrote to memory of 2920	3304	Msbuild.exe	90
PID 3304 wrote to memory of 2920	3304	Msbuild.exe	90
PID 3304 wrote to memory of 2920	3304	Msbuild.exe	90
PID 1060 wrote to memory of 2452	1060	RegSvcs.exe	91
PID 1060 wrote to memory of 2452	1060	RegSvcs.exe	91
PID 1060 wrote to memory of 2452	1060	RegSvcs.exe	91

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\9bdc43df16cff6db219f2d3dd4a1e4b650262e73f98d2264926b90664942c187.ps1
1⤵
- Suspicious use of SetThreadContext
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4020
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4580
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:3604
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3532
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
    dw20.exe -x -s 764
    3⤵
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:3308
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1060
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
    dw20.exe -x -s 760
    3⤵
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:2452
- C:\Windows\Microsoft.NET\Framework\v3.5\Msbuild.exe
  "C:\Windows\Microsoft.NET\Framework\v3.5\Msbuild.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4800
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
    dw20.exe -x -s 752
    3⤵
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:2752
- C:\Windows\Microsoft.NET\Framework\v3.5\Msbuild.exe
  "C:\Windows\Microsoft.NET\Framework\v3.5\Msbuild.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3304
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
    dw20.exe -x -s 756
    3⤵
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:2920

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

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\Microsoft\Windows\WER\Temp\WERDA73.tmp.xml

Filesize
4KB

MD5
7ac1ab6aec6180d00a23afcac89c1bd8

SHA1
11703bdb945d0ed9f0a5e90165764d4bad8be437

SHA256
d1be3f824c21ebfa51cbee900535e4e171ce188331fe6a406e47143fcf444c91

SHA512
5df1bc93cf2fd4b36262902b4055b2a2df9176950495372f4b39e3368d55e86cab15e60683115f5f17fb85b0fdffbd8bb32a82fff43efc8a37bdc266a8b3daf9

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_pnshnakc.rjf.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3304-30-0x00000000009F0000-0x0000000000A00000-memory.dmp

Filesize
64KB

Download
memory/3532-31-0x0000000001A90000-0x0000000001AA0000-memory.dmp

Filesize
64KB

Download
memory/4020-16-0x00000210D8F50000-0x00000210D8F58000-memory.dmp

Filesize
32KB

Download
memory/4020-19-0x00007FFB39E20000-0x00007FFB3A8E1000-memory.dmp

Filesize
10.8MB

Download
memory/4020-14-0x00000210D8F30000-0x00000210D8F4A000-memory.dmp

Filesize
104KB

Download
memory/4020-15-0x00000210D8F20000-0x00000210D8F2A000-memory.dmp

Filesize
40KB

Download
memory/4020-0-0x00007FFB39E23000-0x00007FFB39E25000-memory.dmp

Filesize
8KB

Download
memory/4020-17-0x00000210D8F60000-0x00000210D8F68000-memory.dmp

Filesize
32KB

Download
memory/4020-18-0x00000210D8F70000-0x00000210D8F78000-memory.dmp

Filesize
32KB

Download
memory/4020-13-0x00000210D8EC0000-0x00000210D8ECE000-memory.dmp

Filesize
56KB

Download
memory/4020-10-0x00000210D8C90000-0x00000210D8CB2000-memory.dmp

Filesize
136KB

Download
memory/4020-28-0x00007FFB39E20000-0x00007FFB3A8E1000-memory.dmp

Filesize
10.8MB

Download
memory/4020-12-0x00007FFB39E20000-0x00007FFB3A8E1000-memory.dmp

Filesize
10.8MB

Download
memory/4020-11-0x00007FFB39E20000-0x00007FFB3A8E1000-memory.dmp

Filesize
10.8MB

Download
memory/4580-32-0x0000000000800000-0x0000000000816000-memory.dmp

Filesize
88KB

Download
memory/4580-20-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4800-29-0x0000000001720000-0x0000000001730000-memory.dmp

Filesize
64KB

Download