asyncrat | 97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c

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
18/07/2026, 14:04

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
Size 45KB
Sample260718-rdfd5sgv9v
SHA256 97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c
MD5 c04a662ecdd03a9a6cf7300a1c47976d
SHA1 c3b00232be09ee2c6ba8ceade5eaf7e85980469e
SHA512 72c12b2471f06229d0f425bf6a394d4f90cdf091ac1cf79e7da271ae55ed4bb2ba48be376989428d6b7128c8090d3233b3442c692533f620c1018feb56c51acb
SSDEEP 768:5uSy6pTpwrSWWUE3/WImo2qNvozfy3CKPI0SjbTgX3iYxIvnX4URxBDZ0x:5uSy6pTpoo2xTR0+bMXSY+Xld0x
TLSH
T10A232B003BEDC127E2BE5FB89DF26105867AF5633603D5891CC4529B5713BC68A42AFE
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
notpetya.phimsexvn.mobi:80
notpetya.phimsexvn.mobi:22
notpetya.phimsexvn.mobi:8080
notpetya.phimsexvn.mobi:8880
notpetya.phimsexvn.mobi:2052
notpetya.phimsexvn.mobi:2082
notpetya.phimsexvn.mobi:2086
notpetya.phimsexvn.mobi:2095
notpetya.phimsexvn.mobi:443
notpetya.phimsexvn.mobi:2053
notpetya.phimsexvn.mobi:2083
notpetya.phimsexvn.mobi:2087
notpetya.phimsexvn.mobi:2096
notpetya.phimsexvn.mobi:8443
hacker.phimsexvn.mobi:80
hacker.phimsexvn.mobi:22
hacker.phimsexvn.mobi:8080
hacker.phimsexvn.mobi:8880
hacker.phimsexvn.mobi:2052
hacker.phimsexvn.mobi:2082
hacker.phimsexvn.mobi:2086
hacker.phimsexvn.mobi:2095
hacker.phimsexvn.mobi:443
hacker.phimsexvn.mobi:2053
hacker.phimsexvn.mobi:2083
hacker.phimsexvn.mobi:2087
hacker.phimsexvn.mobi:2096
hacker.phimsexvn.mobi:8443

Mutex

OS4KeFWnyGw6

Attributes

delay
0
install
true
install_file
mtcu1ob.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/0x000e00000001c505-11.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
6136	mtcu1ob.exe
3356	mtcu1ob.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
4476	cmd.exe
3428	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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mtcu1ob.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mtcu1ob.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
5044	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
5092	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
Token: SeDebugPrivilege	6136	mtcu1ob.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2448 wrote to memory of 4476	2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe	89
PID 2448 wrote to memory of 3428	2448	97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe	91
PID 3428 wrote to memory of 5044	3428	cmd.exe	93
PID 4476 wrote to memory of 5092	4476	cmd.exe	94
PID 3428 wrote to memory of 3356	3428	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe
"C:\Users\Admin\AppData\Local\Temp\97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2448
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "mtcu1ob" /tr '"C:\Users\Admin\AppData\Roaming\mtcu1ob.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4476
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "mtcu1ob" /tr '"C:\Users\Admin\AppData\Roaming\mtcu1ob.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:5092
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp39E2.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3428
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:5044
- - C:\Users\Admin\AppData\Roaming\mtcu1ob.exe
    "C:\Users\Admin\AppData\Roaming\mtcu1ob.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3356

C:\Users\Admin\AppData\Roaming\mtcu1ob.exe
"C:\Users\Admin\AppData\Roaming\mtcu1ob.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:6136

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

Replay Monitor

Loading Replay Monitor...

Downloads

tmp39E2.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp39E2.tmp.bat
Size 151B
SHA256 10d5e6e4c052d3028c98fc2ead4171e00af8ae89fdb0668ba254f4a76c905300
MD5 3111ab02da5a77464f28db0ae1e3185e
SHA1 2c4b58380e17fba493bc0b3214878fc71bf46e15
SHA512 44f9ca15295b6183cd557961badab6bc87e6b19cd0fabf2b55cb29e54a55fcfa594c3fd0df28e29e78534bb6dbf2c30bdd1605682224ad4778dcfe8c4fdbf5ad
TLSH
T178C02B8362C5FB4F2C0564230AFAD98D917A7D593F40BB10CB0C640D3780848F4D9342
MD5 SHA1 SHA512 TLSH

Submit Download

mtcu1ob.exe

Path C:\Users\Admin\AppData\Roaming\mtcu1ob.exe
Size 45KB
SHA256 97131aa229341af0368277a8bcfc3014d02ab25b135f00a3eae30bab30971b3c
MD5 c04a662ecdd03a9a6cf7300a1c47976d
SHA1 c3b00232be09ee2c6ba8ceade5eaf7e85980469e
SHA512 72c12b2471f06229d0f425bf6a394d4f90cdf091ac1cf79e7da271ae55ed4bb2ba48be376989428d6b7128c8090d3233b3442c692533f620c1018feb56c51acb
SSDEEP 768:5uSy6pTpwrSWWUE3/WImo2qNvozfy3CKPI0SjbTgX3iYxIvnX4URxBDZ0x:5uSy6pTpoo2xTR0+bMXSY+Xld0x
TLSH
T10A232B003BEDC127E2BE5FB89DF26105867AF5633603D5891CC4529B5713BC68A42AFE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2448-0-0x0000000074C32000-0x0000000074C33000-memory.dmp

Download

memory/2448-1-0x00000000003C0000-0x00000000003D2000-memory.dmp

Download

memory/2448-2-0x0000000074C20000-0x00000000753DC000-memory.dmp

Download

memory/2448-3-0x0000000004F70000-0x000000000500C000-memory.dmp

Download

memory/2448-9-0x0000000074C20000-0x00000000753DC000-memory.dmp

Download

memory/6136-12-0x0000000074C20000-0x00000000753DC000-memory.dmp

Download

memory/6136-14-0x0000000074C20000-0x00000000753DC000-memory.dmp

Download