asyncrat | ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689

Analysis

max time kernel
148s
max time network
158s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260710-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
17/07/2026, 16:07

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General

Target
ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
Size 45KB
Sample260717-tktw8ae14n
SHA256 ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689
MD5 9fe301b441277be681d267db70525621
SHA1 5f31940b948b49891a88129098c12e367572ca5e
SHA512 907d71c53d79962229aa090f01209a3055542e3bde90b89b61fa27173275b79b786850a31f31646ca934879b86a7668faba66ecbea85cf371b35293f33a351f7
SSDEEP 768:wuZ8pT1Uu4/cWUeT66mo2q1nL5P02FUFdxYkk8PIIzjbSgX3iF4nRsJpFDBDZMx:wuZ8pT1tc2KLDmWBI3bVXSFg2JpFFdMx
TLSH
T168232C0037E9822BF2BE4F78A9F26245467AF1732603D5491CC451DB5623FC69A436FE
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.mobi:80
phimsexvn.mobi:22
phimsexvn.mobi:8080
phimsexvn.mobi:8880
phimsexvn.mobi:2052
phimsexvn.mobi:2082
phimsexvn.mobi:2086
phimsexvn.mobi:2095
phimsexvn.mobi:443
phimsexvn.mobi:2053
phimsexvn.mobi:2083
phimsexvn.mobi:2087
phimsexvn.mobi:2096
phimsexvn.mobi:8443
www.phimsexvn.mobi:80
www.phimsexvn.mobi:22
www.phimsexvn.mobi:8080
www.phimsexvn.mobi:8880
www.phimsexvn.mobi:2052
www.phimsexvn.mobi:2082
www.phimsexvn.mobi:2086
www.phimsexvn.mobi:2095
www.phimsexvn.mobi:443
www.phimsexvn.mobi:2053
www.phimsexvn.mobi:2083
www.phimsexvn.mobi:2087
www.phimsexvn.mobi:2096
www.phimsexvn.mobi:8443
stuxnet.phimsexvn.mobi:80
stuxnet.phimsexvn.mobi:22
stuxnet.phimsexvn.mobi:8080
stuxnet.phimsexvn.mobi:8880
stuxnet.phimsexvn.mobi:2052
stuxnet.phimsexvn.mobi:2082
stuxnet.phimsexvn.mobi:2086
stuxnet.phimsexvn.mobi:2095
stuxnet.phimsexvn.mobi:443
stuxnet.phimsexvn.mobi:2053
stuxnet.phimsexvn.mobi:2083
stuxnet.phimsexvn.mobi:2087
stuxnet.phimsexvn.mobi:2096
stuxnet.phimsexvn.mobi:8443
remote.phimsexvn.mobi:80
remote.phimsexvn.mobi:22
remote.phimsexvn.mobi:8080
remote.phimsexvn.mobi:8880
remote.phimsexvn.mobi:2052
remote.phimsexvn.mobi:2082
remote.phimsexvn.mobi:2086
remote.phimsexvn.mobi:2095
remote.phimsexvn.mobi:443
remote.phimsexvn.mobi:2053
remote.phimsexvn.mobi:2083
remote.phimsexvn.mobi:2087
remote.phimsexvn.mobi:2096
remote.phimsexvn.mobi:8443

Mutex

vvWlCEak7Ef4

Attributes

delay
0
install
true
install_file
c3u3.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/0x000e00000001c514-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
4648	c3u3.exe
5928	c3u3.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
4464	cmd.exe
4288	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	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c3u3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c3u3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.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

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
1928	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
4628	schtasks.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
Token: SeDebugPrivilege	4648	c3u3.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 5904 wrote to memory of 4464	5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe	88
PID 5904 wrote to memory of 4288	5904	ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe	90
PID 4464 wrote to memory of 4628	4464	cmd.exe	92
PID 4288 wrote to memory of 1928	4288	cmd.exe	93
PID 4288 wrote to memory of 5928	4288	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe
"C:\Users\Admin\AppData\Local\Temp\ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5904
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "c3u3" /tr '"C:\Users\Admin\AppData\Roaming\c3u3.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4464
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "c3u3" /tr '"C:\Users\Admin\AppData\Roaming\c3u3.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4628
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp96E7.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4288
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:1928
- - C:\Users\Admin\AppData\Roaming\c3u3.exe
    "C:\Users\Admin\AppData\Roaming\c3u3.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5928

C:\Users\Admin\AppData\Roaming\c3u3.exe
"C:\Users\Admin\AppData\Roaming\c3u3.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4648

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

tmp96E7.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp96E7.tmp.bat
Size 148B
SHA256 6f7b1848a02ac24b621fc37cff9b9ad3f62da80aa41f224f87af8b735997eae5
MD5 2d4231f6cbf9b86fa6faec32bbd5e3a5
SHA1 9ca554ad28bb7c8e098e86e698230fffe97d81c4
SHA512 35861bbcf526dee6ca3f4de93a5ac38b17918b41f0e02eb3b7cdb3d97cc1501c1b0114108256c095265d2aa13183f874831aba625777ae4d624eb38c7a9e03c2
TLSH
T1F4C02B4365C7EB4F6805145302FAD48C92727C1D3F40BB40D344400D52C0448F0D9383
MD5 SHA1 SHA512 TLSH

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c3u3.exe

Path C:\Users\Admin\AppData\Roaming\c3u3.exe
Size 45KB
SHA256 ba83b005614de206f9ae1a2518a9dccd9ad72a87d0c3b6c70d48f87618318689
MD5 9fe301b441277be681d267db70525621
SHA1 5f31940b948b49891a88129098c12e367572ca5e
SHA512 907d71c53d79962229aa090f01209a3055542e3bde90b89b61fa27173275b79b786850a31f31646ca934879b86a7668faba66ecbea85cf371b35293f33a351f7
SSDEEP 768:wuZ8pT1Uu4/cWUeT66mo2q1nL5P02FUFdxYkk8PIIzjbSgX3iF4nRsJpFDBDZMx:wuZ8pT1tc2KLDmWBI3bVXSFg2JpFFdMx
TLSH
T168232C0037E9822BF2BE4F78A9F26245467AF1732603D5491CC451DB5623FC69A436FE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4648-12-0x00000000743C0000-0x0000000074B7C000-memory.dmp

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memory/4648-14-0x00000000743C0000-0x0000000074B7C000-memory.dmp

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memory/5904-0-0x0000000074572000-0x0000000074573000-memory.dmp

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memory/5904-1-0x00000000003F0000-0x0000000000402000-memory.dmp

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memory/5904-2-0x0000000074560000-0x0000000074D1C000-memory.dmp

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memory/5904-3-0x0000000004DD0000-0x0000000004E6C000-memory.dmp

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memory/5904-8-0x0000000074560000-0x0000000074D1C000-memory.dmp

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