asyncrat | 531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56

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, 21:53

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General

Target
531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
Size 45KB
Sample260804-1rt9wshd74
SHA256 531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56
MD5 a5073187e4cbba6724ca47e5be1a2cae
SHA1 54e6b4bcb13c4a9f1dfd82e48e1683ad30169db2
SHA512 f6360efe7369bb30a6c968579956635e3699ba7d8af3d2ba18b9565e7c23613b3ea2afefec02c4a75d0b7c1aab5e6fea419a4bc297fbb7335e5b16b0d34dc155
SSDEEP 768:0u1YJTHwAUgQWUaT2Wmo2q9EELO9YjMHPICUzjbhgX3ipj9jR2nd3dFxu/hUUBD4:0u1YJTHcw2F6wgCU3bOXSpj9jcnd3dFt
TLSH
T13F231B003BE9C23BF2BE4F78A9F26145867AF6632603D54D1CC451DB5623FC68A426ED
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

default command_and_control 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
trisis.phimsexvnn.com:80
trisis.phimsexvnn.com:22
trisis.phimsexvnn.com:8080
trisis.phimsexvnn.com:8880
trisis.phimsexvnn.com:2052
trisis.phimsexvnn.com:2082
trisis.phimsexvnn.com:2086
trisis.phimsexvnn.com:2095
trisis.phimsexvnn.com:443
trisis.phimsexvnn.com:2053
trisis.phimsexvnn.com:2083
trisis.phimsexvnn.com:2087
trisis.phimsexvnn.com:2096
trisis.phimsexvnn.com:8443
blacklotus.phimsexvnn.com:80
blacklotus.phimsexvnn.com:22
blacklotus.phimsexvnn.com:8080
blacklotus.phimsexvnn.com:8880
blacklotus.phimsexvnn.com:2052
blacklotus.phimsexvnn.com:2082
blacklotus.phimsexvnn.com:2086
blacklotus.phimsexvnn.com:2095
blacklotus.phimsexvnn.com:443
blacklotus.phimsexvnn.com:2053
blacklotus.phimsexvnn.com:2083
blacklotus.phimsexvnn.com:2087
blacklotus.phimsexvnn.com:2096
blacklotus.phimsexvnn.com:8443

Mutex

RPXPypY7J0Lp

Attributes

delay
0
install
true
install_file
l066ty.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/0x000d00000001c5df-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
4832	l066ty.exe
3084	l066ty.exe

Outbound SSH connection to public host 2 TTPs 1 IoCs

SSH is used for remote access. This may indicate SSH host discovery, encrypted C2 traffic, or data exfiltration.

command_and_control

Protocol Tunneling

T1572

Network Service Discovery

T1046

description	flow	ioc
SSH destination	15	172.67.132.249:22

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
4204	cmd.exe
1116	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	l066ty.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	l066ty.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.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

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
3560	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
1672	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
Token: SeDebugPrivilege	4832	l066ty.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4536 wrote to memory of 4204	4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe	89
PID 4536 wrote to memory of 1116	4536	531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe	90
PID 4204 wrote to memory of 1672	4204	cmd.exe	93
PID 1116 wrote to memory of 3560	1116	cmd.exe	94
PID 1116 wrote to memory of 3084	1116	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe
"C:\Users\Admin\AppData\Local\Temp\531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4536
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "l066ty" /tr '"C:\Users\Admin\AppData\Roaming\l066ty.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4204
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "l066ty" /tr '"C:\Users\Admin\AppData\Roaming\l066ty.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1672
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpC049.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1116
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3560
- - C:\Users\Admin\AppData\Roaming\l066ty.exe
    "C:\Users\Admin\AppData\Roaming\l066ty.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3084

C:\Users\Admin\AppData\Roaming\l066ty.exe
"C:\Users\Admin\AppData\Roaming\l066ty.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4832

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k GPSvcGroup
1⤵
PID:5116

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

Network Service Discovery

T1046

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Protocol Tunneling

T1572

Exfiltration

Impact

Replay Monitor

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Downloads

tmpC049.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpC049.tmp.bat
Size 150B
SHA256 12a9b9616b060bdfb3fa72f8555e16a095080d4ff79906f89583b4545e5b15b6
MD5 143168eb40ffc4dc72e899bc1b89c230
SHA1 da2c990733ad99398dea60da914d109d14d81a48
SHA512 1aa1510eb0c11580d4f7071c508697a4f58b36cdab566cf9fbb689026e85561efa683ceda6ca8601dd701025b41815e3e11be83b9b5c229b2c06afe79d75cf73
TLSH
T1DBC02B82A5C7EA4E380D242303FAD4DCB1F26C2B7F44BB80D304402D2680C58F4DE381
MD5 SHA1 SHA512 TLSH

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l066ty.exe

Path C:\Users\Admin\AppData\Roaming\l066ty.exe
Size 45KB
SHA256 531e78b354c4c3bc34c6756cb7fa4455c4cca99f05ebc87cb24e42c071777f56
MD5 a5073187e4cbba6724ca47e5be1a2cae
SHA1 54e6b4bcb13c4a9f1dfd82e48e1683ad30169db2
SHA512 f6360efe7369bb30a6c968579956635e3699ba7d8af3d2ba18b9565e7c23613b3ea2afefec02c4a75d0b7c1aab5e6fea419a4bc297fbb7335e5b16b0d34dc155
SSDEEP 768:0u1YJTHwAUgQWUaT2Wmo2q9EELO9YjMHPICUzjbhgX3ipj9jR2nd3dFxu/hUUBD4:0u1YJTHcw2F6wgCU3bOXSpj9jcnd3dFt
TLSH
T13F231B003BE9C23BF2BE4F78A9F26145867AF6632603D54D1CC451DB5623FC68A426ED
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/4536-0-0x00000000744E2000-0x00000000744E3000-memory.dmp

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memory/4536-1-0x0000000000C50000-0x0000000000C62000-memory.dmp

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memory/4536-2-0x00000000744D0000-0x0000000074C8C000-memory.dmp

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memory/4536-3-0x0000000005630000-0x00000000056CC000-memory.dmp

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memory/4536-8-0x00000000744D0000-0x0000000074C8C000-memory.dmp

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memory/4832-12-0x0000000074360000-0x0000000074B1C000-memory.dmp

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memory/4832-14-0x0000000074360000-0x0000000074B1C000-memory.dmp

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