asyncrat | e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a

Analysis

max time kernel
6s
max time network
150s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260629-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
03/07/2026, 12:43

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General

Target
e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
Size 45KB
Sample260703-px2elset5p
SHA256 e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a
MD5 e5fdc54cce06b80eb48f6897aebc3f43
SHA1 7765a78501609941f2b51d31a337f319ec1ef534
SHA512 d5f8fa8fe10f5c6f277d0c707bf868cf5532b1d8067f352422853837c26af96beb67103abec115c92f07b91652bbd858b92922eba4e465e54ffec7a521b1a6b1
SSDEEP 768:cuR0JTPUYkEWUmjWymo2q1fLiE0yFjrdj3kk8PIhOjbXgX3i2e7nOVuW+GjHBDZW:cuR0JTPjY2SLBXDBhibwXS2JQW+GjhdW
TLSH
T15B231A0037E9812BF2BE4B78A9F26145467AF6733603D54A1CC452DB5723FC68A426FE
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
hermeticwiper.phimsexvn.work:80
hermeticwiper.phimsexvn.work:22
hermeticwiper.phimsexvn.work:8080
hermeticwiper.phimsexvn.work:8880
hermeticwiper.phimsexvn.work:2052
hermeticwiper.phimsexvn.work:2082
hermeticwiper.phimsexvn.work:2086
hermeticwiper.phimsexvn.work:2095
hermeticwiper.phimsexvn.work:443
hermeticwiper.phimsexvn.work:2053
hermeticwiper.phimsexvn.work:2083
hermeticwiper.phimsexvn.work:2087
hermeticwiper.phimsexvn.work:2096
hermeticwiper.phimsexvn.work:8443
mydoom.phimsexvn.work:80
mydoom.phimsexvn.work:22
mydoom.phimsexvn.work:8080
mydoom.phimsexvn.work:8880
mydoom.phimsexvn.work:2052
mydoom.phimsexvn.work:2082
mydoom.phimsexvn.work:2086
mydoom.phimsexvn.work:2095
mydoom.phimsexvn.work:443
mydoom.phimsexvn.work:2053
mydoom.phimsexvn.work:2083
mydoom.phimsexvn.work:2087
mydoom.phimsexvn.work:2096
mydoom.phimsexvn.work:8443

Mutex

Gc9O6egcT7Iu

Attributes

delay
0
install
true
install_file
l7w9.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/0x0008000000016d07-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
6112	l7w9.exe
5644	l7w9.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	l7w9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	l7w9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.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
3172	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
2148	schtasks.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
Token: SeDebugPrivilege	6112	l7w9.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4264 wrote to memory of 2044	4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe	88
PID 4264 wrote to memory of 4744	4264	e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe	89
PID 4744 wrote to memory of 3172	4744	cmd.exe	92
PID 2044 wrote to memory of 2148	2044	cmd.exe	93
PID 4744 wrote to memory of 5644	4744	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe
"C:\Users\Admin\AppData\Local\Temp\e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4264
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "l7w9" /tr '"C:\Users\Admin\AppData\Roaming\l7w9.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2044
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "l7w9" /tr '"C:\Users\Admin\AppData\Roaming\l7w9.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2148
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpC203.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4744
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3172
- - C:\Users\Admin\AppData\Roaming\l7w9.exe
    "C:\Users\Admin\AppData\Roaming\l7w9.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5644

C:\Users\Admin\AppData\Roaming\l7w9.exe
"C:\Users\Admin\AppData\Roaming\l7w9.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:6112

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

tmpC203.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpC203.tmp.bat
Size 148B
SHA256 30b91b9d6bd47dd8179bf61c7ff683ba275f69cd2e4facf2e6376514fefb1648
MD5 05048d83358aae0e26d6be2f5ce84ff5
SHA1 63a022f31b8e6338a609586e88e735dbd9ec2ff7
SHA512 598ae6cff1d9a8988287326f7030013340cb7fbfa929c9124627a0ddb765bd3bcc20ebfacd2b6e2a7a16bb9fae13ba55120e6ca8cc00a22ca45a14cc5d21f482
TLSH
T117C02B5262C5EA4F2C05141706FAD48DA1726C193F84BF00E308500D56C08F8F0D9381
MD5 SHA1 SHA512 TLSH

Submit Download

l7w9.exe

Path C:\Users\Admin\AppData\Roaming\l7w9.exe
Size 45KB
SHA256 e66635c0e702f6eed0472c4adf7cf240ffa639228ac9ff5d3dfc331cc29ec19a
MD5 e5fdc54cce06b80eb48f6897aebc3f43
SHA1 7765a78501609941f2b51d31a337f319ec1ef534
SHA512 d5f8fa8fe10f5c6f277d0c707bf868cf5532b1d8067f352422853837c26af96beb67103abec115c92f07b91652bbd858b92922eba4e465e54ffec7a521b1a6b1
SSDEEP 768:cuR0JTPUYkEWUmjWymo2q1fLiE0yFjrdj3kk8PIhOjbXgX3i2e7nOVuW+GjHBDZW:cuR0JTPjY2SLBXDBhibwXS2JQW+GjhdW
TLSH
T15B231A0037E9812BF2BE4B78A9F26145467AF6733603D54A1CC452DB5723FC68A426FE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4264-0-0x00000000749E2000-0x00000000749E3000-memory.dmp

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memory/4264-1-0x0000000000C70000-0x0000000000C82000-memory.dmp

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memory/4264-2-0x00000000749D0000-0x000000007518C000-memory.dmp

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memory/4264-3-0x00000000057B0000-0x000000000584C000-memory.dmp

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memory/4264-8-0x00000000749D0000-0x000000007518C000-memory.dmp

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memory/6112-12-0x0000000074860000-0x000000007501C000-memory.dmp

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memory/6112-14-0x0000000074860000-0x000000007501C000-memory.dmp

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