asyncrat | bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce

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
10/07/2026, 08:42

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General

Target
bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe
Size 45KB
Sample260710-kl71ssf18p
SHA256 bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce
MD5 a9ee6e6f77f76000bc241c126ba8e87b
SHA1 f62023dfe93455c7171e527e16a013d6f50d2059
SHA512 452a9ba3208ae2197e761041a6eff33f2853c8932591d38dbaeef0c2ea51b2798882069114df777f372d336c7df273437a22709a4edd12e6e41c4c83e9d4005f
SSDEEP 768:0uPrpT/LGKeWUszuAmo2q9zwD/y/aqPIyzjbNgX3iUgoaDmCg6p5BDZ8x:0uPrpT/qY2Qkhy3baXSyaD1Tpnd8x
TLSH
T114232A003BE9C12BF2BF4F7899F26145467AE6633A03D64D1CC4119B5713FC68A52AFA
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

default defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

phimsexvn.work:80
phimsexvn.work:22
phimsexvn.work:8080
phimsexvn.work:8880
phimsexvn.work:2052
phimsexvn.work:2082
phimsexvn.work:2086
phimsexvn.work:2095
phimsexvn.work:443
phimsexvn.work:2053
phimsexvn.work:2083
phimsexvn.work:2087
phimsexvn.work:2096
phimsexvn.work:8443
www.phimsexvn.work:80
www.phimsexvn.work:22
www.phimsexvn.work:8080
www.phimsexvn.work:8880
www.phimsexvn.work:2052
www.phimsexvn.work:2082
www.phimsexvn.work:2086
www.phimsexvn.work:2095
www.phimsexvn.work:443
www.phimsexvn.work:2053
www.phimsexvn.work:2083
www.phimsexvn.work:2087
www.phimsexvn.work:2096
www.phimsexvn.work:8443
sodinokibi.phimsexvn.work:80
sodinokibi.phimsexvn.work:22
sodinokibi.phimsexvn.work:8080
sodinokibi.phimsexvn.work:8880
sodinokibi.phimsexvn.work:2052
sodinokibi.phimsexvn.work:2082
sodinokibi.phimsexvn.work:2086
sodinokibi.phimsexvn.work:2095
sodinokibi.phimsexvn.work:443
sodinokibi.phimsexvn.work:2053
sodinokibi.phimsexvn.work:2083
sodinokibi.phimsexvn.work:2087
sodinokibi.phimsexvn.work:2096
sodinokibi.phimsexvn.work:8443
darkside.phimsexvn.work:80
darkside.phimsexvn.work:22
darkside.phimsexvn.work:8080
darkside.phimsexvn.work:8880
darkside.phimsexvn.work:2052
darkside.phimsexvn.work:2082
darkside.phimsexvn.work:2086
darkside.phimsexvn.work:2095
darkside.phimsexvn.work:443
darkside.phimsexvn.work:2053
darkside.phimsexvn.work:2083
darkside.phimsexvn.work:2087
darkside.phimsexvn.work:2096
darkside.phimsexvn.work:8443

Mutex

YcwoXXsCdGro

Attributes

delay
0
install
true
install_file
b9cr665.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/0x000e00000001c48a-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
3092	b9cr665.exe
3148	b9cr665.exe

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 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	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.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	b9cr665.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b9cr665.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4920	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
4260	schtasks.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe
6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe
6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe
6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe
6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe
6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe
6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe
6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe
6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe
6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe
6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe
6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe
6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe
6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe
6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe
6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe
6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe
6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe
6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe
6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe
6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe
6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe
6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe
6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe
6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe
6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe
6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe
Token: SeDebugPrivilege	3092	b9cr665.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 6060 wrote to memory of 3256	6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe	86
PID 6060 wrote to memory of 5884	6060	bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe	88
PID 3256 wrote to memory of 4260	3256	cmd.exe	90
PID 5884 wrote to memory of 4920	5884	cmd.exe	91
PID 5884 wrote to memory of 3148	5884	cmd.exe	94

C:\Users\Admin\AppData\Local\Temp\bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe
"C:\Users\Admin\AppData\Local\Temp\bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:6060
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "b9cr665" /tr '"C:\Users\Admin\AppData\Roaming\b9cr665.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3256
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "b9cr665" /tr '"C:\Users\Admin\AppData\Roaming\b9cr665.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4260
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpF306.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5884
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4920
- - C:\Users\Admin\AppData\Roaming\b9cr665.exe
    "C:\Users\Admin\AppData\Roaming\b9cr665.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3148

C:\Users\Admin\AppData\Roaming\b9cr665.exe
"C:\Users\Admin\AppData\Roaming\b9cr665.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3092

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

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

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

tmpF306.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpF306.tmp.bat
Size 151B
SHA256 061df0346d8cd0b9eedfa2c27e2df35cdbb5e8e79718b38e0bc07b977606f727
MD5 e3239f06a82e898b1f5d5d48d9485515
SHA1 a71d4f9ff22dee36f88266b856116b48ef43969e
SHA512 a637600b87a1e88da3258305ca352f9fda9d40918569a0be45d90f846f688301e75afa7098b74e9213c189a034415047585a5d1896a1fd47ce5e4202400d2a94
TLSH
T137C02B4291C6FA0E7905346303FBD48C9176AC593F84FB00D304C40E168085CF0DA382
MD5 SHA1 SHA512 TLSH

Submit Download

b9cr665.exe

Path C:\Users\Admin\AppData\Roaming\b9cr665.exe
Size 45KB
SHA256 bb89a362a8aae8b0ca28773a48fa4939d0a50dc0044e40ec1b29440de68f3dce
MD5 a9ee6e6f77f76000bc241c126ba8e87b
SHA1 f62023dfe93455c7171e527e16a013d6f50d2059
SHA512 452a9ba3208ae2197e761041a6eff33f2853c8932591d38dbaeef0c2ea51b2798882069114df777f372d336c7df273437a22709a4edd12e6e41c4c83e9d4005f
SSDEEP 768:0uPrpT/LGKeWUszuAmo2q9zwD/y/aqPIyzjbNgX3iUgoaDmCg6p5BDZ8x:0uPrpT/qY2Qkhy3baXSyaD1Tpnd8x
TLSH
T114232A003BE9C12BF2BF4F7899F26145467AE6633A03D64D1CC4119B5713FC68A52AFA
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3092-12-0x0000000074DB0000-0x000000007556C000-memory.dmp

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memory/3092-14-0x0000000074DB0000-0x000000007556C000-memory.dmp

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memory/6060-0-0x0000000074F32000-0x0000000074F33000-memory.dmp

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memory/6060-1-0x0000000000870000-0x0000000000882000-memory.dmp

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memory/6060-2-0x0000000074F20000-0x00000000756DC000-memory.dmp

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memory/6060-3-0x00000000053B0000-0x000000000544C000-memory.dmp

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memory/6060-8-0x0000000074F20000-0x00000000756DC000-memory.dmp

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