asyncrat | 7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940

Analysis

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

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
01/08/2026, 12:11

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General

Target
7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
Size 45KB
Sample260801-pcv24avalh
SHA256 7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940
MD5 935fdcf0bd13bf37ac6d547adf999251
SHA1 4c8faabec32a31ef5d605763563b25fa6d3d1205
SHA512 ea867d3c5872373efd96eba8f2c23bd3b60a19aec83773f2a5d8b23a661e46d5b7cda970f3ff393dccd9ed0189121de22c054bd3057c9e3dc0e445c16c28cc14
SSDEEP 768:cu7m/5THrq+CWUoDuMmo2qF+UJ+XOoJ9hU/NPIEfzjbLgX3ibr5CsISC90r2kuB0:cu7e5TH2A2DU0eI9hyqEf3b0XSbNtSO7
TLSH
T167230A003BE8C12BF2BE4FB8A9F26145867AF2633603D55A1CC4519B5713FC696426FE
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

haysexcdn.net:80
haysexcdn.net:22
haysexcdn.net:8080
haysexcdn.net:8880
haysexcdn.net:2052
haysexcdn.net:2082
haysexcdn.net:2086
haysexcdn.net:2095
haysexcdn.net:443
haysexcdn.net:2053
haysexcdn.net:2083
haysexcdn.net:2087
haysexcdn.net:2096
haysexcdn.net:8443
www.haysexcdn.net:80
www.haysexcdn.net:22
www.haysexcdn.net:8080
www.haysexcdn.net:8880
www.haysexcdn.net:2052
www.haysexcdn.net:2082
www.haysexcdn.net:2086
www.haysexcdn.net:2095
www.haysexcdn.net:443
www.haysexcdn.net:2053
www.haysexcdn.net:2083
www.haysexcdn.net:2087
www.haysexcdn.net:2096
www.haysexcdn.net:8443
malware.haysexcdn.net:80
malware.haysexcdn.net:22
malware.haysexcdn.net:8080
malware.haysexcdn.net:8880
malware.haysexcdn.net:2052
malware.haysexcdn.net:2082
malware.haysexcdn.net:2086
malware.haysexcdn.net:2095
malware.haysexcdn.net:443
malware.haysexcdn.net:2053
malware.haysexcdn.net:2083
malware.haysexcdn.net:2087
malware.haysexcdn.net:2096
malware.haysexcdn.net:8443
hack.haysexcdn.net:80
hack.haysexcdn.net:22
hack.haysexcdn.net:8080
hack.haysexcdn.net:8880
hack.haysexcdn.net:2052
hack.haysexcdn.net:2082
hack.haysexcdn.net:2086
hack.haysexcdn.net:2095
hack.haysexcdn.net:443
hack.haysexcdn.net:2053
hack.haysexcdn.net:2083
hack.haysexcdn.net:2087
hack.haysexcdn.net:2096
hack.haysexcdn.net:8443
client.haysexcdn.net:80
client.haysexcdn.net:22
client.haysexcdn.net:8080
client.haysexcdn.net:8880
client.haysexcdn.net:2052
client.haysexcdn.net:2082
client.haysexcdn.net:2086
client.haysexcdn.net:2095
client.haysexcdn.net:443
client.haysexcdn.net:2053
client.haysexcdn.net:2083
client.haysexcdn.net:2087
client.haysexcdn.net:2096
client.haysexcdn.net:8443

Mutex

c0eg7Aqgmo8h

Attributes

delay
0
install
true
install_file
t2ybv.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/0x001900000001c45d-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
5820	t2ybv.exe
2080	t2ybv.exe

Outbound SSH connection to public host 2 TTPs 3 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	3	104.26.4.211:22
SSH destination	7	172.67.73.19:22
SSH destination	12	104.26.5.211:22

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
2244	cmd.exe
4688	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	t2ybv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	t2ybv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.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	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
476	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
2952	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
Token: SeDebugPrivilege	5820	t2ybv.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1208 wrote to memory of 4688	1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe	89
PID 1208 wrote to memory of 2244	1208	7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe	90
PID 2244 wrote to memory of 476	2244	cmd.exe	93
PID 4688 wrote to memory of 2952	4688	cmd.exe	94
PID 2244 wrote to memory of 2080	2244	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe
"C:\Users\Admin\AppData\Local\Temp\7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1208
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "t2ybv" /tr '"C:\Users\Admin\AppData\Roaming\t2ybv.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4688
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "t2ybv" /tr '"C:\Users\Admin\AppData\Roaming\t2ybv.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2952
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp2E59.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2244
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:476
- - C:\Users\Admin\AppData\Roaming\t2ybv.exe
    "C:\Users\Admin\AppData\Roaming\t2ybv.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2080

C:\Users\Admin\AppData\Roaming\t2ybv.exe
"C:\Users\Admin\AppData\Roaming\t2ybv.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:5820

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

tmp2E59.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp2E59.tmp.bat
Size 149B
SHA256 595c138b2823a7642fa68bbd34803bbb25e1decc689f52adf44270c5cb4eea18
MD5 f9c5c1fe7c8d1ff09eadbea230a94c46
SHA1 3c7e51de4f30b07f8912c3a8910e12a2f4248698
SHA512 e3e9b4556e1d3933f7a88be074c3d9e2776259410f0e57b0b278cddfe91be12f9c530747226ee4b4cbf4ef1613628a1b1ce29b6a595517a65eaba06d02e47121
TLSH
T197C02B4767CAEA1F7805541306FAD98CD1B26C2E3F40BB20C344440E13D08D8F0ED381
MD5 SHA1 SHA512 TLSH

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t2ybv.exe

Path C:\Users\Admin\AppData\Roaming\t2ybv.exe
Size 45KB
SHA256 7ba419873ba3b38f856a72f2d60a1f1c95834a93a497f36f441fcff7be525940
MD5 935fdcf0bd13bf37ac6d547adf999251
SHA1 4c8faabec32a31ef5d605763563b25fa6d3d1205
SHA512 ea867d3c5872373efd96eba8f2c23bd3b60a19aec83773f2a5d8b23a661e46d5b7cda970f3ff393dccd9ed0189121de22c054bd3057c9e3dc0e445c16c28cc14
SSDEEP 768:cu7m/5THrq+CWUoDuMmo2qF+UJ+XOoJ9hU/NPIEfzjbLgX3ibr5CsISC90r2kuB0:cu7e5TH2A2DU0eI9hyqEf3b0XSbNtSO7
TLSH
T167230A003BE8C12BF2BE4FB8A9F26145867AF2633603D55A1CC4519B5713FC696426FE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1208-0-0x0000000075032000-0x0000000075033000-memory.dmp

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memory/1208-1-0x0000000000C60000-0x0000000000C72000-memory.dmp

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memory/1208-2-0x0000000075020000-0x00000000757DC000-memory.dmp

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memory/1208-3-0x0000000005850000-0x00000000058EC000-memory.dmp

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memory/1208-8-0x0000000075020000-0x00000000757DC000-memory.dmp

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memory/5820-12-0x0000000074EB0000-0x000000007566C000-memory.dmp

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memory/5820-14-0x0000000074EB0000-0x000000007566C000-memory.dmp

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