asyncrat | 4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789

Analysis

max time kernel
148s
max time network
150s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
14/07/2026, 14:06

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General

Target
4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
Size 45KB
Sample260714-reda6ses7m
SHA256 4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789
MD5 dbdbefeb39c3906357b7b7e02adb10ac
SHA1 77b243222d821a8ad6a13256f1562b4cfd432675
SHA512 47fa3c96181f89eee19efacdc75ea7f7e9ee8a3ec1b544ce3b7708a66e268bb4acad76923d0f6b557b2c4adfcc873a183ba16019a574ed306d36c4db5a752f21
SSDEEP 768:kuSOpTPTCFcWUeXa6mo2qAr0b3NEAteiZPISzjbagf3is3z5UQxz+JJgBDZMx:kuSOpTPOP2y3ehiWS3bNfSs3z5JMJ2dO
TLSH
T129232B0037E9812BF2BE4F7899F26145867AF6636603D5491C8451DB1A23FC6CA43AEE
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

phimsexlondep.net:80
phimsexlondep.net:22
phimsexlondep.net:8080
phimsexlondep.net:8880
phimsexlondep.net:2052
phimsexlondep.net:2082
phimsexlondep.net:2086
phimsexlondep.net:2095
phimsexlondep.net:443
phimsexlondep.net:2053
phimsexlondep.net:2083
phimsexlondep.net:2087
phimsexlondep.net:2096
phimsexlondep.net:8443
www.phimsexlondep.net:80
www.phimsexlondep.net:22
www.phimsexlondep.net:8080
www.phimsexlondep.net:8880
www.phimsexlondep.net:2052
www.phimsexlondep.net:2082
www.phimsexlondep.net:2086
www.phimsexlondep.net:2095
www.phimsexlondep.net:443
www.phimsexlondep.net:2053
www.phimsexlondep.net:2083
www.phimsexlondep.net:2087
www.phimsexlondep.net:2096
www.phimsexlondep.net:8443
gootloader.phimsexlondep.net:80
gootloader.phimsexlondep.net:22
gootloader.phimsexlondep.net:8080
gootloader.phimsexlondep.net:8880
gootloader.phimsexlondep.net:2052
gootloader.phimsexlondep.net:2082
gootloader.phimsexlondep.net:2086
gootloader.phimsexlondep.net:2095
gootloader.phimsexlondep.net:443
gootloader.phimsexlondep.net:2053
gootloader.phimsexlondep.net:2083
gootloader.phimsexlondep.net:2087
gootloader.phimsexlondep.net:2096
gootloader.phimsexlondep.net:8443
sobig.phimsexlondep.net:80
sobig.phimsexlondep.net:22
sobig.phimsexlondep.net:8080
sobig.phimsexlondep.net:8880
sobig.phimsexlondep.net:2052
sobig.phimsexlondep.net:2082
sobig.phimsexlondep.net:2086
sobig.phimsexlondep.net:2095
sobig.phimsexlondep.net:443
sobig.phimsexlondep.net:2053
sobig.phimsexlondep.net:2083
sobig.phimsexlondep.net:2087
sobig.phimsexlondep.net:2096
sobig.phimsexlondep.net:8443
malware.phimsexlondep.net:80
malware.phimsexlondep.net:22
malware.phimsexlondep.net:8080
malware.phimsexlondep.net:8880
malware.phimsexlondep.net:2052
malware.phimsexlondep.net:2082
malware.phimsexlondep.net:2086
malware.phimsexlondep.net:2095
malware.phimsexlondep.net:443
malware.phimsexlondep.net:2053
malware.phimsexlondep.net:2083
malware.phimsexlondep.net:2087
malware.phimsexlondep.net:2096
malware.phimsexlondep.net:8443

Mutex

H6AATATJSWln

Attributes

delay
0
install
true
install_file
segk.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/0x000e00000001c532-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
3856	segk.exe
1772	segk.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	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	segk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	segk.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4020	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
4000	schtasks.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
Token: SeDebugPrivilege	3856	segk.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2536 wrote to memory of 4436	2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe	86
PID 2536 wrote to memory of 6136	2536	4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe	88
PID 4436 wrote to memory of 4000	4436	cmd.exe	90
PID 6136 wrote to memory of 4020	6136	cmd.exe	91
PID 6136 wrote to memory of 1772	6136	cmd.exe	94

C:\Users\Admin\AppData\Local\Temp\4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe
"C:\Users\Admin\AppData\Local\Temp\4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2536
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "segk" /tr '"C:\Users\Admin\AppData\Roaming\segk.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4436
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "segk" /tr '"C:\Users\Admin\AppData\Roaming\segk.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4000
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpBD4B.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:6136
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4020
- - C:\Users\Admin\AppData\Roaming\segk.exe
    "C:\Users\Admin\AppData\Roaming\segk.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1772

C:\Users\Admin\AppData\Roaming\segk.exe
"C:\Users\Admin\AppData\Roaming\segk.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3856

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

tmpBD4B.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpBD4B.tmp.bat
Size 148B
SHA256 583bdae8810efc71217d17ee34c05e9de8d41e123afe60789a39f33ced0ba72e
MD5 844a243371577704f8af7de9ff8f7af6
SHA1 61c66c392e2670fb906b5cd26864e89535d05886
SHA512 9bc60fde47b9dd865750a1937cd193d429e3af2ffc02b586ddf7833c588dd1e308d2ab527dc9b9b22453e280e5fcd7694dc8a4be48e666f18671ca6890b8e04b
TLSH
T1E1C02B5362CDEA0F2905142312FED48DB1726E1D3F40BB00C354405E228044CF4D93CA
MD5 SHA1 SHA512 TLSH

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segk.exe

Path C:\Users\Admin\AppData\Roaming\segk.exe
Size 45KB
SHA256 4d74375c677de61d92e0ddc9b0be020f10b0799cf396d9fa0f2d68ad0f2c4789
MD5 dbdbefeb39c3906357b7b7e02adb10ac
SHA1 77b243222d821a8ad6a13256f1562b4cfd432675
SHA512 47fa3c96181f89eee19efacdc75ea7f7e9ee8a3ec1b544ce3b7708a66e268bb4acad76923d0f6b557b2c4adfcc873a183ba16019a574ed306d36c4db5a752f21
SSDEEP 768:kuSOpTPTCFcWUeXa6mo2qAr0b3NEAteiZPISzjbagf3is3z5UQxz+JJgBDZMx:kuSOpTPOP2y3ehiWS3bNfSs3z5JMJ2dO
TLSH
T129232B0037E9812BF2BE4F7899F26145867AF6636603D5491C8451DB1A23FC6CA43AEE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/2536-0-0x0000000074522000-0x0000000074523000-memory.dmp

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memory/2536-1-0x0000000000210000-0x0000000000222000-memory.dmp

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memory/2536-2-0x0000000074510000-0x0000000074CCC000-memory.dmp

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memory/2536-3-0x0000000004E10000-0x0000000004EAC000-memory.dmp

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memory/2536-8-0x0000000074510000-0x0000000074CCC000-memory.dmp

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memory/3856-12-0x0000000074310000-0x0000000074ACC000-memory.dmp

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memory/3856-14-0x0000000074310000-0x0000000074ACC000-memory.dmp

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