asyncrat | a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436

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
03/08/2026, 16:16

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General

Target
a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
Size 45KB
Sample260803-traf6aca68
SHA256 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436
MD5 6f59ed9da79db6ae98771e876fef1ffd
SHA1 bb7756676957e821c3928750bc1386e391841a5f
SHA512 de66f362c170c48bc84728c6034efbf4f180f63dad1a5a14bd8e94b541927b07ad5da7b47aec9c32d486215187df50f84d4b90cebc5234a1635c32254fb1a51a
SSDEEP 768:4uBfJTMUyYUWUWBDimo2qVg0b3NLAteiZPImzjbUg53i8jpXNmXY1BDZbx:4uBfJTMpv2q3ZhiWm3b75SkMidbx
TLSH
T1B0233C003BE9812BF2BE4F78A9F25245867AF2636603D5491CC451DB5613FC6CA43AFE
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

sex18.me:80
sex18.me:22
sex18.me:8080
sex18.me:8880
sex18.me:2052
sex18.me:2082
sex18.me:2086
sex18.me:2095
sex18.me:443
sex18.me:2053
sex18.me:2083
sex18.me:2087
sex18.me:2096
sex18.me:8443
www.sex18.me:80
www.sex18.me:22
www.sex18.me:8080
www.sex18.me:8880
www.sex18.me:2052
www.sex18.me:2082
www.sex18.me:2086
www.sex18.me:2095
www.sex18.me:443
www.sex18.me:2053
www.sex18.me:2083
www.sex18.me:2087
www.sex18.me:2096
www.sex18.me:8443
sasser.sex18.me:80
sasser.sex18.me:22
sasser.sex18.me:8080
sasser.sex18.me:8880
sasser.sex18.me:2052
sasser.sex18.me:2082
sasser.sex18.me:2086
sasser.sex18.me:2095
sasser.sex18.me:443
sasser.sex18.me:2053
sasser.sex18.me:2083
sasser.sex18.me:2087
sasser.sex18.me:2096
sasser.sex18.me:8443
conficker.sex18.me:80
conficker.sex18.me:22
conficker.sex18.me:8080
conficker.sex18.me:8880
conficker.sex18.me:2052
conficker.sex18.me:2082
conficker.sex18.me:2086
conficker.sex18.me:2095
conficker.sex18.me:443
conficker.sex18.me:2053
conficker.sex18.me:2083
conficker.sex18.me:2087
conficker.sex18.me:2096
conficker.sex18.me:8443

Mutex

pwUG2loerPiH

Attributes

delay
0
install
true
install_file
zuxk.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/0x001700000001c485-11.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
6052	zuxk.exe
5204	zuxk.exe

Outbound SSH connection to public host 2 TTPs 2 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	12	69.48.229.117:22
SSH destination	15	69.48.229.117:22

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
124	cmd.exe
4952	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	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.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	zuxk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zuxk.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
5576	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
3712	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
Token: SeDebugPrivilege	6052	zuxk.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 124	2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe	89
PID 2692 wrote to memory of 4952	2692	a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe	90
PID 124 wrote to memory of 3712	124	cmd.exe	93
PID 4952 wrote to memory of 5576	4952	cmd.exe	94
PID 4952 wrote to memory of 5204	4952	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
"C:\Users\Admin\AppData\Local\Temp\a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2692
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "zuxk" /tr '"C:\Users\Admin\AppData\Roaming\zuxk.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:124
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "zuxk" /tr '"C:\Users\Admin\AppData\Roaming\zuxk.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3712
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp643E.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4952
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:5576
- - C:\Users\Admin\AppData\Roaming\zuxk.exe
    "C:\Users\Admin\AppData\Roaming\zuxk.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5204

C:\Users\Admin\AppData\Roaming\zuxk.exe
"C:\Users\Admin\AppData\Roaming\zuxk.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:6052

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

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Downloads

tmp643E.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp643E.tmp.bat
Size 148B
SHA256 d8f365f91067c16416c65479129f75f64203da03666a32da4de09f576c610c95
MD5 d876d3a1bb7518571cd321007f846c1e
SHA1 1853b76912c937e0c02cdb52fc1b605ba332c750
SHA512 7253a7c099509627da891d6a678445e24e1f1cfaa4defab87cc50e04d3769d839681f458aa56b6805ee183a01cff34396d2c46f2edc3d22a9058eecba9b0fdb7
TLSH
T109C08C87A1C9EA0E2805245302BB998C91A668193E40AB00D304400A2280448E499381
MD5 SHA1 SHA512 TLSH

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zuxk.exe

Path C:\Users\Admin\AppData\Roaming\zuxk.exe
Size 45KB
SHA256 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436
MD5 6f59ed9da79db6ae98771e876fef1ffd
SHA1 bb7756676957e821c3928750bc1386e391841a5f
SHA512 de66f362c170c48bc84728c6034efbf4f180f63dad1a5a14bd8e94b541927b07ad5da7b47aec9c32d486215187df50f84d4b90cebc5234a1635c32254fb1a51a
SSDEEP 768:4uBfJTMUyYUWUWBDimo2qVg0b3NLAteiZPImzjbUg53i8jpXNmXY1BDZbx:4uBfJTMpv2q3ZhiWm3b75SkMidbx
TLSH
T1B0233C003BE9812BF2BE4F78A9F25245867AF2636603D5491CC451DB5613FC6CA43AFE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2692-0-0x00000000750A2000-0x00000000750A3000-memory.dmp

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memory/2692-1-0x0000000000DA0000-0x0000000000DB2000-memory.dmp

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memory/2692-2-0x0000000075090000-0x000000007584C000-memory.dmp

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memory/2692-3-0x00000000058D0000-0x000000000596C000-memory.dmp

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memory/2692-8-0x0000000075090000-0x000000007584C000-memory.dmp

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memory/6052-12-0x0000000074EC0000-0x000000007567C000-memory.dmp

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memory/6052-14-0x0000000074EC0000-0x000000007567C000-memory.dmp

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