asyncrat | 9994b9e197b422529221de7238dc0e44ae21e66d78c48355f31837c3696ec90e

Analysis

max time kernel
138s
max time network
153s
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 05:30

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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 5048 set thread context of 1372	5048	powershell.exe	85
PID 5048 set thread context of 3024	5048	powershell.exe	86
PID 5048 set thread context of 3508	5048	powershell.exe	87
PID 5048 set thread context of 3020	5048	powershell.exe	88
PID 5048 set thread context of 2320	5048	powershell.exe	89
PID 5048 set thread context of 2912	5048	powershell.exe	90

Drops file in Windows directory 1 IoCs

description	ioc	Process
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
5048	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	aspnet_regbrowsers.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Msbuild.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	Msbuild.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	dw20.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 opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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 opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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 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

Enumerates system info in registry 2 TTPs 8 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
5048	powershell.exe
5048	powershell.exe
5048	powershell.exe

Suspicious use of AdjustPrivilegeToken 21 IoCs

description	pid	Process
Token: SeDebugPrivilege	5048	powershell.exe
Token: SeRestorePrivilege	664	dw20.exe
Token: SeBackupPrivilege	664	dw20.exe
Token: SeRestorePrivilege	1640	dw20.exe
Token: SeBackupPrivilege	1640	dw20.exe
Token: SeBackupPrivilege	1640	dw20.exe
Token: SeBackupPrivilege	1600	dw20.exe
Token: SeBackupPrivilege	1476	dw20.exe
Token: SeBackupPrivilege	1600	dw20.exe
Token: SeBackupPrivilege	1476	dw20.exe
Token: SeBackupPrivilege	1600	dw20.exe
Token: SeBackupPrivilege	1600	dw20.exe
Token: SeBackupPrivilege	1476	dw20.exe
Token: SeBackupPrivilege	1476	dw20.exe
Token: SeBackupPrivilege	1640	dw20.exe
Token: SeBackupPrivilege	1640	dw20.exe
Token: SeBackupPrivilege	1476	dw20.exe
Token: SeBackupPrivilege	1600	dw20.exe
Token: SeBackupPrivilege	664	dw20.exe
Token: SeBackupPrivilege	664	dw20.exe
Token: SeDebugPrivilege	3024	aspnet_regbrowsers.exe

Suspicious use of WriteProcessMemory 60 IoCs

description	pid	Process	procid_target
PID 5048 wrote to memory of 1372	5048	powershell.exe	85
PID 5048 wrote to memory of 1372	5048	powershell.exe	85
PID 5048 wrote to memory of 1372	5048	powershell.exe	85
PID 5048 wrote to memory of 1372	5048	powershell.exe	85
PID 5048 wrote to memory of 1372	5048	powershell.exe	85
PID 5048 wrote to memory of 1372	5048	powershell.exe	85
PID 5048 wrote to memory of 1372	5048	powershell.exe	85
PID 5048 wrote to memory of 1372	5048	powershell.exe	85
PID 5048 wrote to memory of 3024	5048	powershell.exe	86
PID 5048 wrote to memory of 3024	5048	powershell.exe	86
PID 5048 wrote to memory of 3024	5048	powershell.exe	86
PID 5048 wrote to memory of 3024	5048	powershell.exe	86
PID 5048 wrote to memory of 3024	5048	powershell.exe	86
PID 5048 wrote to memory of 3024	5048	powershell.exe	86
PID 5048 wrote to memory of 3024	5048	powershell.exe	86
PID 5048 wrote to memory of 3024	5048	powershell.exe	86
PID 5048 wrote to memory of 3508	5048	powershell.exe	87
PID 5048 wrote to memory of 3508	5048	powershell.exe	87
PID 5048 wrote to memory of 3508	5048	powershell.exe	87
PID 5048 wrote to memory of 3508	5048	powershell.exe	87
PID 5048 wrote to memory of 3508	5048	powershell.exe	87
PID 5048 wrote to memory of 3508	5048	powershell.exe	87
PID 5048 wrote to memory of 3508	5048	powershell.exe	87
PID 5048 wrote to memory of 3508	5048	powershell.exe	87
PID 5048 wrote to memory of 3020	5048	powershell.exe	88
PID 5048 wrote to memory of 3020	5048	powershell.exe	88
PID 5048 wrote to memory of 3020	5048	powershell.exe	88
PID 5048 wrote to memory of 3020	5048	powershell.exe	88
PID 5048 wrote to memory of 3020	5048	powershell.exe	88
PID 5048 wrote to memory of 3020	5048	powershell.exe	88
PID 5048 wrote to memory of 3020	5048	powershell.exe	88
PID 5048 wrote to memory of 3020	5048	powershell.exe	88
PID 5048 wrote to memory of 2320	5048	powershell.exe	89
PID 5048 wrote to memory of 2320	5048	powershell.exe	89
PID 5048 wrote to memory of 2320	5048	powershell.exe	89
PID 5048 wrote to memory of 2320	5048	powershell.exe	89
PID 5048 wrote to memory of 2320	5048	powershell.exe	89
PID 5048 wrote to memory of 2320	5048	powershell.exe	89
PID 5048 wrote to memory of 2320	5048	powershell.exe	89
PID 5048 wrote to memory of 2320	5048	powershell.exe	89
PID 5048 wrote to memory of 2912	5048	powershell.exe	90
PID 5048 wrote to memory of 2912	5048	powershell.exe	90
PID 5048 wrote to memory of 2912	5048	powershell.exe	90
PID 5048 wrote to memory of 2912	5048	powershell.exe	90
PID 5048 wrote to memory of 2912	5048	powershell.exe	90
PID 5048 wrote to memory of 2912	5048	powershell.exe	90
PID 5048 wrote to memory of 2912	5048	powershell.exe	90
PID 5048 wrote to memory of 2912	5048	powershell.exe	90
PID 2320 wrote to memory of 664	2320	Msbuild.exe	91
PID 2320 wrote to memory of 664	2320	Msbuild.exe	91
PID 2320 wrote to memory of 664	2320	Msbuild.exe	91
PID 3508 wrote to memory of 1600	3508	RegSvcs.exe	92
PID 3508 wrote to memory of 1600	3508	RegSvcs.exe	92
PID 3508 wrote to memory of 1600	3508	RegSvcs.exe	92
PID 3020 wrote to memory of 1640	3020	RegSvcs.exe	93
PID 3020 wrote to memory of 1640	3020	RegSvcs.exe	93
PID 3020 wrote to memory of 1640	3020	RegSvcs.exe	93
PID 2912 wrote to memory of 1476	2912	Msbuild.exe	94
PID 2912 wrote to memory of 1476	2912	Msbuild.exe	94
PID 2912 wrote to memory of 1476	2912	Msbuild.exe	94

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:5048
- 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:1372
- 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:3024
- 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:3508
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
    dw20.exe -x -s 780
    3⤵
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:1600
- 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:3020
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
    dw20.exe -x -s 776
    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:1640
- 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:2320
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
    dw20.exe -x -s 760
    3⤵
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:664
- 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:2912
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
    dw20.exe -x -s 772
    3⤵
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:1476

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\WERBFF5.tmp.xml

Filesize
4KB

MD5
db00ea2c920d737bef7468b5bc5d01f9

SHA1
64fd7d0a677d52e870d69ebeb3249db1e97b4a1a

SHA256
15fa48fc2c9da72944c97feea919e154ac7550bbaf6294c015eed325fa1b9860

SHA512
814c69b9efccb95e534b12e298df6ba6a5b28c106085150cd07537f85b1913cabd0b135aa1a38200f1e98734220a6e49ca507aa9a72916e3af0d87a9fc7a238c

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tfqnisac.a2p.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1372-20-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1372-30-0x0000000001300000-0x0000000001316000-memory.dmp

Filesize
88KB

Download
memory/3020-28-0x0000000000E30000-0x0000000000E40000-memory.dmp

Filesize
64KB

Download
memory/3508-29-0x0000000000A40000-0x0000000000A50000-memory.dmp

Filesize
64KB

Download
memory/5048-12-0x00007FFA07DA0000-0x00007FFA08861000-memory.dmp

Filesize
10.8MB

Download
memory/5048-15-0x000001D8E9D10000-0x000001D8E9D1A000-memory.dmp

Filesize
40KB

Download
memory/5048-16-0x000001D8EC580000-0x000001D8EC588000-memory.dmp

Filesize
32KB

Download
memory/5048-18-0x000001D8EC5A0000-0x000001D8EC5A8000-memory.dmp

Filesize
32KB

Download
memory/5048-17-0x000001D8EC590000-0x000001D8EC598000-memory.dmp

Filesize
32KB

Download
memory/5048-19-0x00007FFA07DA0000-0x00007FFA08861000-memory.dmp

Filesize
10.8MB

Download
memory/5048-14-0x000001D8EC560000-0x000001D8EC57A000-memory.dmp

Filesize
104KB

Download
memory/5048-13-0x000001D8E9C70000-0x000001D8E9C7E000-memory.dmp

Filesize
56KB

Download
memory/5048-0-0x00007FFA07DA3000-0x00007FFA07DA5000-memory.dmp

Filesize
8KB

Download
memory/5048-31-0x00007FFA07DA0000-0x00007FFA08861000-memory.dmp

Filesize
10.8MB

Download
memory/5048-11-0x00007FFA07DA0000-0x00007FFA08861000-memory.dmp

Filesize
10.8MB

Download
memory/5048-10-0x000001D8EC2F0000-0x000001D8EC312000-memory.dmp

Filesize
136KB

Download