asyncrat | 8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57

Analysis

max time kernel
148s
max time network
153s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
04/08/2026, 19:18

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General

Target
8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
Size 45KB
Sample260804-x1dfyswvev
SHA256 8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57
MD5 d9cc03f27a8fb7b4dae08884850d23c5
SHA1 d5f0343407f6de334145043fbc9bf87f5ca9ec15
SHA512 e3ee57a4c816d2848a8e14af11adcb0d50b12b73db90e0da31623a4b3024a14f8fa8f89f761657629436788cbe5b352e7527232df3c89a29f1c910c1985be273
SSDEEP 768:8uuSpTg7GBoWUSH6+mo2qYlCSwTMSPI5rjbOgX3iDN89lSQW5UsNXBDZ0x:8uuSpTgyf2dgG5/bxXSDN8nS35UsNRd2
TLSH
T1DB232B003BE8812BF2BE4F78A8F25245867AF5673603D54A2CC451DB5723FC59A427FA
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

default command_and_control defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

twosisterstubes.com:80
twosisterstubes.com:22
twosisterstubes.com:8080
twosisterstubes.com:8880
twosisterstubes.com:2052
twosisterstubes.com:2082
twosisterstubes.com:2086
twosisterstubes.com:2095
twosisterstubes.com:443
twosisterstubes.com:2053
twosisterstubes.com:2083
twosisterstubes.com:2087
twosisterstubes.com:2096
twosisterstubes.com:8443
www.twosisterstubes.com:80
www.twosisterstubes.com:22
www.twosisterstubes.com:8080
www.twosisterstubes.com:8880
www.twosisterstubes.com:2052
www.twosisterstubes.com:2082
www.twosisterstubes.com:2086
www.twosisterstubes.com:2095
www.twosisterstubes.com:443
www.twosisterstubes.com:2053
www.twosisterstubes.com:2083
www.twosisterstubes.com:2087
www.twosisterstubes.com:2096
www.twosisterstubes.com:8443
remote.twosisterstubes.com:80
remote.twosisterstubes.com:22
remote.twosisterstubes.com:8080
remote.twosisterstubes.com:8880
remote.twosisterstubes.com:2052
remote.twosisterstubes.com:2082
remote.twosisterstubes.com:2086
remote.twosisterstubes.com:2095
remote.twosisterstubes.com:443
remote.twosisterstubes.com:2053
remote.twosisterstubes.com:2083
remote.twosisterstubes.com:2087
remote.twosisterstubes.com:2096
remote.twosisterstubes.com:8443
malware.twosisterstubes.com:80
malware.twosisterstubes.com:22
malware.twosisterstubes.com:8080
malware.twosisterstubes.com:8880
malware.twosisterstubes.com:2052
malware.twosisterstubes.com:2082
malware.twosisterstubes.com:2086
malware.twosisterstubes.com:2095
malware.twosisterstubes.com:443
malware.twosisterstubes.com:2053
malware.twosisterstubes.com:2083
malware.twosisterstubes.com:2087
malware.twosisterstubes.com:2096
malware.twosisterstubes.com:8443
stuxnet.twosisterstubes.com:80
stuxnet.twosisterstubes.com:22
stuxnet.twosisterstubes.com:8080
stuxnet.twosisterstubes.com:8880
stuxnet.twosisterstubes.com:2052
stuxnet.twosisterstubes.com:2082
stuxnet.twosisterstubes.com:2086
stuxnet.twosisterstubes.com:2095
stuxnet.twosisterstubes.com:443
stuxnet.twosisterstubes.com:2053
stuxnet.twosisterstubes.com:2083
stuxnet.twosisterstubes.com:2087
stuxnet.twosisterstubes.com:2096
stuxnet.twosisterstubes.com:8443

Mutex

bRyujrQh7682

Attributes

delay
0
install
true
install_file
pye0c9.exe
install_folder
%AppData%

aes.plain

Signatures

Family: AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x001400000001c462-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
6084	pye0c9.exe
3552	pye0c9.exe

Outbound SSH connection to public host 2 TTPs 4 IoCs

SSH is used for remote access. This may indicate SSH host discovery, encrypted C2 traffic, or data exfiltration.

command_and_control

Protocol Tunneling

T1572

Network Service Discovery

T1046

description	flow	ioc
SSH destination	17	104.21.17.96:22
SSH destination	18	172.67.175.110:22
SSH destination	21	104.21.17.96:22
SSH destination	22	172.67.175.110:22

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

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 2 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
3296	cmd.exe
3484	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 7 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	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pye0c9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pye0c9.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4924	timeout.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

pid	Process
4568	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2960 wrote to memory of 3484	2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe	89
PID 2960 wrote to memory of 3296	2960	8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe	91
PID 3484 wrote to memory of 4568	3484	cmd.exe	93
PID 3296 wrote to memory of 4924	3296	cmd.exe	94
PID 3296 wrote to memory of 3552	3296	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe
"C:\Users\Admin\AppData\Local\Temp\8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2960
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "pye0c9" /tr '"C:\Users\Admin\AppData\Roaming\pye0c9.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3484
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "pye0c9" /tr '"C:\Users\Admin\AppData\Roaming\pye0c9.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4568
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp23F9.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3296
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4924
- - C:\Users\Admin\AppData\Roaming\pye0c9.exe
    "C:\Users\Admin\AppData\Roaming\pye0c9.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3552

C:\Users\Admin\AppData\Roaming\pye0c9.exe
"C:\Users\Admin\AppData\Roaming\pye0c9.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:6084

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

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

Network Service Discovery

T1046

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Protocol Tunneling

T1572

Exfiltration

Impact

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Downloads

tmp23F9.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp23F9.tmp.bat
Size 150B
SHA256 82c47952e9ff2523d23aec4204032ad16363f8c11a3ddc0be763df24c07b68c6
MD5 badc6102f0e32bb9c39631e2b8783fca
SHA1 2a1bed37369598601bd909fe1700bde787039ee5
SHA512 c52d76a4e661352178e01b3590bdb4a3fe58b843a8b1fc108b7c677181b9d975dea5a1ca3b427a10838bbfa7d993b405d31c1b403a74402ba409a3ca41417a62
TLSH
T154C02B4262CBEB1F7E05546317FAD88DD172AC1A3F80BF00C704404E22C0488F0D9346
MD5 SHA1 SHA512 TLSH

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pye0c9.exe

Path C:\Users\Admin\AppData\Roaming\pye0c9.exe
Size 45KB
SHA256 8fe8b61ca017402a884c69afc3cef154c6d9a21f4a45b65f175fae1385f1af57
MD5 d9cc03f27a8fb7b4dae08884850d23c5
SHA1 d5f0343407f6de334145043fbc9bf87f5ca9ec15
SHA512 e3ee57a4c816d2848a8e14af11adcb0d50b12b73db90e0da31623a4b3024a14f8fa8f89f761657629436788cbe5b352e7527232df3c89a29f1c910c1985be273
SSDEEP 768:8uuSpTg7GBoWUSH6+mo2qYlCSwTMSPI5rjbOgX3iDN89lSQW5UsNXBDZ0x:8uuSpTgyf2dgG5/bxXSDN8nS35UsNRd2
TLSH
T1DB232B003BE8812BF2BE4F78A8F25245867AF5673603D54A2CC451DB5723FC59A427FA
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/2960-0-0x0000000074DF2000-0x0000000074DF3000-memory.dmp

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memory/2960-1-0x0000000000D90000-0x0000000000DA2000-memory.dmp

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memory/2960-2-0x0000000074DE0000-0x000000007559C000-memory.dmp

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memory/2960-3-0x00000000058B0000-0x000000000594C000-memory.dmp

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memory/2960-9-0x0000000074DE0000-0x000000007559C000-memory.dmp

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memory/6084-12-0x0000000074DE0000-0x000000007559C000-memory.dmp

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memory/6084-14-0x0000000074DE0000-0x000000007559C000-memory.dmp

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