asyncrat | 397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1

Analysis

max time kernel
148s
max time network
151s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
22/07/2026, 11:36

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General

Target
397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
Size 45KB
Sample260722-nqmr7stfmc
SHA256 397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1
MD5 30c84397900b03d2cc615134f3da875f
SHA1 6e82db29690d8be32d7675d4749807b3f8fc64f4
SHA512 fc5877090c7519a2b44f0e47407cba72d1a5698688a2892f64d56608f09245d88dca48d822be4784ebe135deccbe6e2c8e3cbfdaac162ab431dffddc92393a61
SSDEEP 768:kuSOpTPTCFcWUeXa6mo2qAaLiE02FjMdjYkkmPIAzjbWgX3ipZMU+Dz7bBDZMx:kuSOpTPOP2KL9wQPA3bJXSR8nNdMx
TLSH
T19F233B0037E9812BF1BE4F78A9F26141867AF6732603D5491CC451DB5A23FC69A43AFE
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

flimora.top:80
flimora.top:22
flimora.top:8080
flimora.top:8880
flimora.top:2052
flimora.top:2082
flimora.top:2086
flimora.top:2095
flimora.top:443
flimora.top:2053
flimora.top:2083
flimora.top:2087
flimora.top:2096
flimora.top:8443
www.flimora.top:80
www.flimora.top:22
www.flimora.top:8080
www.flimora.top:8880
www.flimora.top:2052
www.flimora.top:2082
www.flimora.top:2086
www.flimora.top:2095
www.flimora.top:443
www.flimora.top:2053
www.flimora.top:2083
www.flimora.top:2087
www.flimora.top:2096
www.flimora.top:8443
malware.flimora.top:80
malware.flimora.top:22
malware.flimora.top:8080
malware.flimora.top:8880
malware.flimora.top:2052
malware.flimora.top:2082
malware.flimora.top:2086
malware.flimora.top:2095
malware.flimora.top:443
malware.flimora.top:2053
malware.flimora.top:2083
malware.flimora.top:2087
malware.flimora.top:2096
malware.flimora.top:8443
socgholish.flimora.top:80
socgholish.flimora.top:22
socgholish.flimora.top:8080
socgholish.flimora.top:8880
socgholish.flimora.top:2052
socgholish.flimora.top:2082
socgholish.flimora.top:2086
socgholish.flimora.top:2095
socgholish.flimora.top:443
socgholish.flimora.top:2053
socgholish.flimora.top:2083
socgholish.flimora.top:2087
socgholish.flimora.top:2096
socgholish.flimora.top:8443
industroyer.flimora.top:80
industroyer.flimora.top:22
industroyer.flimora.top:8080
industroyer.flimora.top:8880
industroyer.flimora.top:2052
industroyer.flimora.top:2082
industroyer.flimora.top:2086
industroyer.flimora.top:2095
industroyer.flimora.top:443
industroyer.flimora.top:2053
industroyer.flimora.top:2083
industroyer.flimora.top:2087
industroyer.flimora.top:2096
industroyer.flimora.top:8443
fakeupdates.flimora.top:80
fakeupdates.flimora.top:22
fakeupdates.flimora.top:8080
fakeupdates.flimora.top:8880
fakeupdates.flimora.top:2052
fakeupdates.flimora.top:2082
fakeupdates.flimora.top:2086
fakeupdates.flimora.top:2095
fakeupdates.flimora.top:443
fakeupdates.flimora.top:2053
fakeupdates.flimora.top:2083
fakeupdates.flimora.top:2087
fakeupdates.flimora.top:2096
fakeupdates.flimora.top:8443

Mutex

ke3ybSuSs3Xz

Attributes

delay
0
install
true
install_file
4wc4.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/0x000800000001b88e-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
5204	4wc4.exe
3036	4wc4.exe

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
2632	cmd.exe
3400	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	4wc4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4wc4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.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
2012	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
2372	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
Token: SeDebugPrivilege	5204	4wc4.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1856 wrote to memory of 2632	1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe	90
PID 1856 wrote to memory of 3400	1856	397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe	91
PID 3400 wrote to memory of 2012	3400	cmd.exe	94
PID 2632 wrote to memory of 2372	2632	cmd.exe	95
PID 3400 wrote to memory of 3036	3400	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe
"C:\Users\Admin\AppData\Local\Temp\397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1856
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "4wc4" /tr '"C:\Users\Admin\AppData\Roaming\4wc4.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2632
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "4wc4" /tr '"C:\Users\Admin\AppData\Roaming\4wc4.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2372
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp5172.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3400
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2012
- - C:\Users\Admin\AppData\Roaming\4wc4.exe
    "C:\Users\Admin\AppData\Roaming\4wc4.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3036

C:\Users\Admin\AppData\Roaming\4wc4.exe
"C:\Users\Admin\AppData\Roaming\4wc4.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:5204

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

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

tmp5172.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp5172.tmp.bat
Size 148B
SHA256 ce435ba4f049a85211128a5cff3a26efcc708309a4f398e08fc94085f464a2a6
MD5 4a9a41b0abf6d4d02d01864d21b0903e
SHA1 4d3a1ba284c593160ec1286a434936b2e8cd8b41
SHA512 b39b7dba3fe77c3e7140bf08f0f3962767b70f939c591a63f2e3c1e70dce049152e849355f1f8b66b0cdea307889e448b4a1c91b6cd35995cb6ccc458f9852d2
TLSH
T121C02B92A1C5EE1E6805541707FAD98CD17ABD1A3F80BF40D308C01E1380458F0EA341
MD5 SHA1 SHA512 TLSH

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4wc4.exe

Path C:\Users\Admin\AppData\Roaming\4wc4.exe
Size 45KB
SHA256 397a3429caf48465ca19978c14237ec96e7c07c26088a94dce719d0e741be4c1
MD5 30c84397900b03d2cc615134f3da875f
SHA1 6e82db29690d8be32d7675d4749807b3f8fc64f4
SHA512 fc5877090c7519a2b44f0e47407cba72d1a5698688a2892f64d56608f09245d88dca48d822be4784ebe135deccbe6e2c8e3cbfdaac162ab431dffddc92393a61
SSDEEP 768:kuSOpTPTCFcWUeXa6mo2qAaLiE02FjMdjYkkmPIAzjbWgX3ipZMU+Dz7bBDZMx:kuSOpTPOP2KL9wQPA3bJXSR8nNdMx
TLSH
T19F233B0037E9812BF1BE4F78A9F26141867AF6732603D5491CC451DB5A23FC69A43AFE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1856-0-0x00000000748A2000-0x00000000748A3000-memory.dmp

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memory/1856-1-0x0000000000180000-0x0000000000192000-memory.dmp

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memory/1856-2-0x0000000074890000-0x000000007504C000-memory.dmp

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memory/1856-3-0x0000000004D40000-0x0000000004DDC000-memory.dmp

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memory/1856-8-0x0000000074890000-0x000000007504C000-memory.dmp

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memory/5204-12-0x0000000074720000-0x0000000074EDC000-memory.dmp

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memory/5204-14-0x0000000074720000-0x0000000074EDC000-memory.dmp

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