asyncrat | 07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0

Analysis

max time kernel
148s
max time network
152s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
04/08/2026, 10:06

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General

Target
07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
Size 45KB
Sample260804-l46fcscn3s
SHA256 07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0
MD5 42876482e323ffb0561f816a506e31f0
SHA1 d782b5b29ef6f5747eb1770ba8b6262900d78f78
SHA512 e8f6070ae5f3c1ae5fea4bcd2172d705df989905029b0f6dbb197651d87ec6b9b3520b6fb5b65a3e2c5d8cb4e57ba1c246de61006b19b02aeaca4d75b694039f
SSDEEP 768:kuSOpTPTCFcWUeXa6mo2qA80eUNEARViZPI6zjbBga3iW8mv6x8rsQJWWpBDZMx:kuSOpTPOP2uUe+iW63buaSMc8rZIW3dO
TLSH
T14D232B003BE9812BF2BE4F74A8F26245867BF6632603D5491CC451D75723FC69A43AEE
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

phimsexvnn.com:80
phimsexvnn.com:22
phimsexvnn.com:8080
phimsexvnn.com:8880
phimsexvnn.com:2052
phimsexvnn.com:2082
phimsexvnn.com:2086
phimsexvnn.com:2095
phimsexvnn.com:443
phimsexvnn.com:2053
phimsexvnn.com:2083
phimsexvnn.com:2087
phimsexvnn.com:2096
phimsexvnn.com:8443
www.phimsexvnn.com:80
www.phimsexvnn.com:22
www.phimsexvnn.com:8080
www.phimsexvnn.com:8880
www.phimsexvnn.com:2052
www.phimsexvnn.com:2082
www.phimsexvnn.com:2086
www.phimsexvnn.com:2095
www.phimsexvnn.com:443
www.phimsexvnn.com:2053
www.phimsexvnn.com:2083
www.phimsexvnn.com:2087
www.phimsexvnn.com:2096
www.phimsexvnn.com:8443
locky.phimsexvnn.com:80
locky.phimsexvnn.com:22
locky.phimsexvnn.com:8080
locky.phimsexvnn.com:8880
locky.phimsexvnn.com:2052
locky.phimsexvnn.com:2082
locky.phimsexvnn.com:2086
locky.phimsexvnn.com:2095
locky.phimsexvnn.com:443
locky.phimsexvnn.com:2053
locky.phimsexvnn.com:2083
locky.phimsexvnn.com:2087
locky.phimsexvnn.com:2096
locky.phimsexvnn.com:8443
cryptolocker.phimsexvnn.com:80
cryptolocker.phimsexvnn.com:22
cryptolocker.phimsexvnn.com:8080
cryptolocker.phimsexvnn.com:8880
cryptolocker.phimsexvnn.com:2052
cryptolocker.phimsexvnn.com:2082
cryptolocker.phimsexvnn.com:2086
cryptolocker.phimsexvnn.com:2095
cryptolocker.phimsexvnn.com:443
cryptolocker.phimsexvnn.com:2053
cryptolocker.phimsexvnn.com:2083
cryptolocker.phimsexvnn.com:2087
cryptolocker.phimsexvnn.com:2096
cryptolocker.phimsexvnn.com:8443
client.phimsexvnn.com:80
client.phimsexvnn.com:22
client.phimsexvnn.com:8080
client.phimsexvnn.com:8880
client.phimsexvnn.com:2052
client.phimsexvnn.com:2082
client.phimsexvnn.com:2086
client.phimsexvnn.com:2095
client.phimsexvnn.com:443
client.phimsexvnn.com:2053
client.phimsexvnn.com:2083
client.phimsexvnn.com:2087
client.phimsexvnn.com:2096
client.phimsexvnn.com:8443
malware.phimsexvnn.com:80
malware.phimsexvnn.com:22
malware.phimsexvnn.com:8080
malware.phimsexvnn.com:8880
malware.phimsexvnn.com:2052
malware.phimsexvnn.com:2082
malware.phimsexvnn.com:2086
malware.phimsexvnn.com:2095
malware.phimsexvnn.com:443
malware.phimsexvnn.com:2053
malware.phimsexvnn.com:2083
malware.phimsexvnn.com:2087
malware.phimsexvnn.com:2096
malware.phimsexvnn.com:8443

Mutex

nwLKUVCKngPP

Attributes

delay
0
install
true
install_file
cjei.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/0x000e00000001c534-11.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
2552	cjei.exe
5832	cjei.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
1252	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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cjei.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cjei.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.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
4832	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
4744	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2096 wrote to memory of 1252	2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe	88
PID 2096 wrote to memory of 2632	2096	07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe	90
PID 1252 wrote to memory of 4744	1252	cmd.exe	92
PID 2632 wrote to memory of 4832	2632	cmd.exe	93
PID 2632 wrote to memory of 5832	2632	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe
"C:\Users\Admin\AppData\Local\Temp\07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2096
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "cjei" /tr '"C:\Users\Admin\AppData\Roaming\cjei.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1252
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "cjei" /tr '"C:\Users\Admin\AppData\Roaming\cjei.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4744
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpD8A3.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2632
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4832
- - C:\Users\Admin\AppData\Roaming\cjei.exe
    "C:\Users\Admin\AppData\Roaming\cjei.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5832

C:\Users\Admin\AppData\Roaming\cjei.exe
"C:\Users\Admin\AppData\Roaming\cjei.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2552

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

tmpD8A3.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpD8A3.tmp.bat
Size 148B
SHA256 c237074cdd1a8a9e2ab4253e661ba833a75181b704cd73c268ef797eeddc9d1d
MD5 0062e959041b89ddd9283986aafb2e2a
SHA1 d035dc3e734a1c4bb8d17438f99bd078eb12c8ea
SHA512 f186b8ab35609c64df33020e02d1388ce85fc71fca2ac2691d2759786a068de5fb24d66b0e3ec54850e0406ac67f8f0a4c74bdbab26db406291e2e3a047760b3
TLSH
T1AAC02B4292CBEA1E2805649302FAD48CD1726C5D3F40FF00C308405D9680459F0DA3C5
MD5 SHA1 SHA512 TLSH

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cjei.exe

Path C:\Users\Admin\AppData\Roaming\cjei.exe
Size 45KB
SHA256 07f5cfd10eb1da32e77bb6dc50d77dccaf1b41e158648b333c3d03aaff0293a0
MD5 42876482e323ffb0561f816a506e31f0
SHA1 d782b5b29ef6f5747eb1770ba8b6262900d78f78
SHA512 e8f6070ae5f3c1ae5fea4bcd2172d705df989905029b0f6dbb197651d87ec6b9b3520b6fb5b65a3e2c5d8cb4e57ba1c246de61006b19b02aeaca4d75b694039f
SSDEEP 768:kuSOpTPTCFcWUeXa6mo2qA80eUNEARViZPI6zjbBga3iW8mv6x8rsQJWWpBDZMx:kuSOpTPOP2uUe+iW63buaSMc8rZIW3dO
TLSH
T14D232B003BE9812BF2BE4F74A8F26245867BF6632603D5491CC451D75723FC69A43AEE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/2096-0-0x0000000074432000-0x0000000074433000-memory.dmp

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memory/2096-1-0x00000000001C0000-0x00000000001D2000-memory.dmp

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memory/2096-2-0x0000000074420000-0x0000000074BDC000-memory.dmp

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memory/2096-3-0x0000000004D50000-0x0000000004DEC000-memory.dmp

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memory/2096-9-0x0000000074420000-0x0000000074BDC000-memory.dmp

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memory/2552-12-0x0000000074420000-0x0000000074BDC000-memory.dmp

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memory/2552-14-0x0000000074420000-0x0000000074BDC000-memory.dmp

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