asyncrat | 89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08-11-2024 03:19

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General

Target

89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe
Size

513KB
MD5

8d8718cc95ecf6af196cc0c0eaac9ae2
SHA1

0c822251da19e4f9f5a0b555d85fcf8813034b32
SHA256

89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4
SHA512

98a74f1db9a7334f05327d871e7aa4e3b264d2cc36709df6e625edb79dde1e49a355b439fa7b72e6a5714a9c2e5b8807aa94aa137fee36c78388bbeeb9445114
SSDEEP

12288:iE/ShrODzyPjurrSN/nGtZr0IMr3xYokt9mROPBMzt:d/2PAShG30X3um3B

Score

10^/10

asyncrat default discovery execution rat

Malware Config

Extracted

Family

asyncrat

Version

AWS | RxR

Botnet

Default

lastofdr51.mywire.org:6606

lastofdr51.mywire.org:7707

lastofdr51.mywire.org:8808

Nightmare15.strangled.net:6606

Nightmare15.strangled.net:7707

Nightmare15.strangled.net:8808

darkenssnight.ydns.eu:6606

darkenssnight.ydns.eu:7707

darkenssnight.ydns.eu:8808

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
false
install_file
SystemUpdate.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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

Processes:

powershell.exepowershell.exe

pid	Process
2292	powershell.exe
740	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe

description	pid	Process	procid_target
PID 1664 set thread context of 2328	1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe	101

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 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

Processes:

89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exepowershell.exepowershell.exeschtasks.exeRegSvcs.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

Processes:

schtasks.exe

pid	Process
2524	schtasks.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exepowershell.exepowershell.exe

pid	Process
1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe
1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe
1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe
1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe
1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe
1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe
1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe
1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe
1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe
1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe
1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe
1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe
1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe
1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe
1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe
1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe
1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe
1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe
740	powershell.exe
2292	powershell.exe
1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe
2292	powershell.exe
740	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exepowershell.exepowershell.exeRegSvcs.exe

description	pid	Process
Token: SeDebugPrivilege	1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe
Token: SeDebugPrivilege	740	powershell.exe
Token: SeDebugPrivilege	2292	powershell.exe
Token: SeDebugPrivilege	2328	RegSvcs.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe

description	pid	Process	procid_target
PID 1664 wrote to memory of 2292	1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe	95
PID 1664 wrote to memory of 2292	1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe	95
PID 1664 wrote to memory of 2292	1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe	95
PID 1664 wrote to memory of 740	1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe	97
PID 1664 wrote to memory of 740	1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe	97
PID 1664 wrote to memory of 740	1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe	97
PID 1664 wrote to memory of 2524	1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe	99
PID 1664 wrote to memory of 2524	1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe	99
PID 1664 wrote to memory of 2524	1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe	99
PID 1664 wrote to memory of 2328	1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe	101
PID 1664 wrote to memory of 2328	1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe	101
PID 1664 wrote to memory of 2328	1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe	101
PID 1664 wrote to memory of 2328	1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe	101
PID 1664 wrote to memory of 2328	1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe	101
PID 1664 wrote to memory of 2328	1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe	101
PID 1664 wrote to memory of 2328	1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe	101
PID 1664 wrote to memory of 2328	1664	89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe	101

C:\Users\Admin\AppData\Local\Temp\89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe
"C:\Users\Admin\AppData\Local\Temp\89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1664
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2292
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\YeANKIEIC.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:740
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YeANKIEIC" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAB20.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2524
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2328

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

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:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
b8aeb8f682df4016f6f9e5ffb85a16ad

SHA1
fd4852cb71bcd8131a895cba006c365c91acd5f9

SHA256
ffe7db4cf540560306969180169aab1f1d3d63d0c819a2ff4ade7c1bf6381348

SHA512
a549ea8d1c65672024d046119c2bec66bcaeffc32ddbad377f6efc5bb4501c5c1d7bc9bbbb4b26d098e5a11d05004e8f03a002b7b9b8f27cb35358619f19c9bc

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uci4dyuj.uvo.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpAB20.tmp

Filesize
1KB

MD5
e3986212e54ede73b093a1fae68a8b39

SHA1
c17ec13c331f3ae1622e32ca8f6f9eada2f592a7

SHA256
8a23cf4874ac2ba3a42f4e7425ddcdcf0f7dcc82666a008de64615277da014fc

SHA512
ab4805f58bc4981cad6fae6105be0a4e9d4349e810ec1f0d4447c8fc1ded9de32dc812a8fbe5d43027c55607364c14cc45788449e7941d4210a94d2a62be02f2

Download Submit
memory/740-76-0x00000000079B0000-0x00000000079BA000-memory.dmp

Filesize
40KB

Download
memory/740-73-0x0000000007800000-0x00000000078A3000-memory.dmp

Filesize
652KB

Download
memory/740-78-0x0000000007B40000-0x0000000007B51000-memory.dmp

Filesize
68KB

Download
memory/740-77-0x0000000007BC0000-0x0000000007C56000-memory.dmp

Filesize
600KB

Download
memory/740-23-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/740-75-0x0000000007940000-0x000000000795A000-memory.dmp

Filesize
104KB

Download
memory/740-74-0x0000000007F80000-0x00000000085FA000-memory.dmp

Filesize
6.5MB

Download
memory/740-81-0x0000000007C80000-0x0000000007C9A000-memory.dmp

Filesize
104KB

Download
memory/740-52-0x0000000070200000-0x000000007024C000-memory.dmp

Filesize
304KB

Download
memory/740-72-0x0000000007580000-0x000000000759E000-memory.dmp

Filesize
120KB

Download
memory/740-51-0x00000000075C0000-0x00000000075F2000-memory.dmp

Filesize
200KB

Download
memory/740-82-0x0000000007C60000-0x0000000007C68000-memory.dmp

Filesize
32KB

Download
memory/740-88-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/740-21-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/740-22-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/1664-11-0x0000000009750000-0x00000000097EC000-memory.dmp

Filesize
624KB

Download
memory/1664-0-0x000000007521E000-0x000000007521F000-memory.dmp

Filesize
4KB

Download
memory/1664-1-0x0000000000A30000-0x0000000000AB6000-memory.dmp

Filesize
536KB

Download
memory/1664-2-0x0000000005A20000-0x0000000005FC4000-memory.dmp

Filesize
5.6MB

Download
memory/1664-3-0x0000000005510000-0x00000000055A2000-memory.dmp

Filesize
584KB

Download
memory/1664-4-0x00000000054B0000-0x00000000054BA000-memory.dmp

Filesize
40KB

Download
memory/1664-5-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/1664-6-0x0000000006D00000-0x0000000006D10000-memory.dmp

Filesize
64KB

Download
memory/1664-50-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/1664-7-0x0000000006D10000-0x0000000007064000-memory.dmp

Filesize
3.3MB

Download
memory/1664-8-0x000000007521E000-0x000000007521F000-memory.dmp

Filesize
4KB

Download
memory/1664-9-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/1664-10-0x0000000006960000-0x00000000069B8000-memory.dmp

Filesize
352KB

Download
memory/2292-48-0x00000000068C0000-0x00000000068DE000-memory.dmp

Filesize
120KB

Download
memory/2292-79-0x0000000007E30000-0x0000000007E3E000-memory.dmp

Filesize
56KB

Download
memory/2292-16-0x0000000002FC0000-0x0000000002FF6000-memory.dmp

Filesize
216KB

Download
memory/2292-62-0x0000000070200000-0x000000007024C000-memory.dmp

Filesize
304KB

Download
memory/2292-18-0x0000000005A30000-0x0000000006058000-memory.dmp

Filesize
6.2MB

Download
memory/2292-49-0x0000000006ED0000-0x0000000006F1C000-memory.dmp

Filesize
304KB

Download
memory/2292-26-0x0000000006260000-0x00000000062C6000-memory.dmp

Filesize
408KB

Download
memory/2292-17-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/2292-80-0x0000000007E40000-0x0000000007E54000-memory.dmp

Filesize
80KB

Download
memory/2292-24-0x0000000006150000-0x0000000006172000-memory.dmp

Filesize
136KB

Download
memory/2292-19-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/2292-27-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/2292-89-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/2292-25-0x00000000061F0000-0x0000000006256000-memory.dmp

Filesize
408KB

Download
memory/2328-28-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download