asyncrat | 0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9

Analysis

max time kernel
148s
max time network
149s
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, 06:03

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General

Target
0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
Size 45KB
Sample260803-gsfcksda49
SHA256 0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9
MD5 8027a507662eb3ec9d25a0fb5477a35a
SHA1 0bd7f120354cec0f644102d45fceb96a0a2e02e1
SHA512 e291e04037325945122611f984115eeda5a5a47aa33781cdc5049b126bf6ba9f6528eb9743ad296984564287463d06b5ca2b86e909bcf147324b5b38a76d6a3b
SSDEEP 768:wuDWZTpw7bmaWUg3gSk0mo2qlKzdAAyPMlL8TfPIMWzjbmgX3AWgFF8pw08OBDZO:wuDWZTpMZSB2/lvlL+4MW3b5XwArdMx
TLSH
T17D232A003BE8812BF2BE4F7859F26145867AF2732603D58A1CC451DB5B23FC69A526FD
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

sexybeam.me:80
sexybeam.me:22
sexybeam.me:8080
sexybeam.me:8880
sexybeam.me:2052
sexybeam.me:2082
sexybeam.me:2086
sexybeam.me:2095
sexybeam.me:443
sexybeam.me:2053
sexybeam.me:2083
sexybeam.me:2087
sexybeam.me:2096
sexybeam.me:8443
www.sexybeam.me:80
www.sexybeam.me:22
www.sexybeam.me:8080
www.sexybeam.me:8880
www.sexybeam.me:2052
www.sexybeam.me:2082
www.sexybeam.me:2086
www.sexybeam.me:2095
www.sexybeam.me:443
www.sexybeam.me:2053
www.sexybeam.me:2083
www.sexybeam.me:2087
www.sexybeam.me:2096
www.sexybeam.me:8443
fakeupdates.sexybeam.me:80
fakeupdates.sexybeam.me:22
fakeupdates.sexybeam.me:8080
fakeupdates.sexybeam.me:8880
fakeupdates.sexybeam.me:2052
fakeupdates.sexybeam.me:2082
fakeupdates.sexybeam.me:2086
fakeupdates.sexybeam.me:2095
fakeupdates.sexybeam.me:443
fakeupdates.sexybeam.me:2053
fakeupdates.sexybeam.me:2083
fakeupdates.sexybeam.me:2087
fakeupdates.sexybeam.me:2096
fakeupdates.sexybeam.me:8443
klez.sexybeam.me:80
klez.sexybeam.me:22
klez.sexybeam.me:8080
klez.sexybeam.me:8880
klez.sexybeam.me:2052
klez.sexybeam.me:2082
klez.sexybeam.me:2086
klez.sexybeam.me:2095
klez.sexybeam.me:443
klez.sexybeam.me:2053
klez.sexybeam.me:2083
klez.sexybeam.me:2087
klez.sexybeam.me:2096
klez.sexybeam.me:8443

Mutex

m4iWsUTSKSb1

Attributes

delay
0
install
true
install_file
1sc6s.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/0x000e00000001c505-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
5444	1sc6s.exe
792	1sc6s.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	11	103.131.57.45:22

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
4544	cmd.exe
5060	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	1sc6s.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1sc6s.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
5628	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
244	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
Token: SeDebugPrivilege	5444	1sc6s.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4284 wrote to memory of 4544	4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe	89
PID 4284 wrote to memory of 5060	4284	0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe	91
PID 5060 wrote to memory of 5628	5060	cmd.exe	93
PID 4544 wrote to memory of 244	4544	cmd.exe	94
PID 5060 wrote to memory of 792	5060	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe
"C:\Users\Admin\AppData\Local\Temp\0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4284
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "1sc6s" /tr '"C:\Users\Admin\AppData\Roaming\1sc6s.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4544
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "1sc6s" /tr '"C:\Users\Admin\AppData\Roaming\1sc6s.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:244
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp37C0.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5060
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:5628
- - C:\Users\Admin\AppData\Roaming\1sc6s.exe
    "C:\Users\Admin\AppData\Roaming\1sc6s.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:792

C:\Users\Admin\AppData\Roaming\1sc6s.exe
"C:\Users\Admin\AppData\Roaming\1sc6s.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:5444

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

tmp37C0.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp37C0.tmp.bat
Size 149B
SHA256 150eab43bdc8f61b17835e0cd38a60dd826a7d0f49c39cd2fa602c75331d88cb
MD5 f011aa31432fa924d015efa405df86ef
SHA1 5acf0bb6d7d99e2ba1a30f2cd1f08e40124383a5
SHA512 4009408be23e20c5a6f66992861afed66df8072231537571fad44e8785edfe4a7351d23d44933ca79d4d9d3b05320f653ccd1d4e6eb17b7cce28c0321316f1c8
TLSH
T1CEC08C4291C5AE5E2805146312FA958E91A2A8593E80AB0093444069B280848E0E9281
MD5 SHA1 SHA512 TLSH

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1sc6s.exe

Path C:\Users\Admin\AppData\Roaming\1sc6s.exe
Size 45KB
SHA256 0f5a1f8ac36a14cd4d673dc60782cf71d613502af7f6c70f87c92363d08f53e9
MD5 8027a507662eb3ec9d25a0fb5477a35a
SHA1 0bd7f120354cec0f644102d45fceb96a0a2e02e1
SHA512 e291e04037325945122611f984115eeda5a5a47aa33781cdc5049b126bf6ba9f6528eb9743ad296984564287463d06b5ca2b86e909bcf147324b5b38a76d6a3b
SSDEEP 768:wuDWZTpw7bmaWUg3gSk0mo2qlKzdAAyPMlL8TfPIMWzjbmgX3AWgFF8pw08OBDZO:wuDWZTpMZSB2/lvlL+4MW3b5XwArdMx
TLSH
T17D232A003BE8812BF2BE4F7859F26145867AF2732603D58A1CC451DB5B23FC69A526FD
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/4284-0-0x0000000074C32000-0x0000000074C33000-memory.dmp

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memory/4284-1-0x0000000000D50000-0x0000000000D62000-memory.dmp

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memory/4284-2-0x0000000074C20000-0x00000000753DC000-memory.dmp

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memory/4284-3-0x0000000005850000-0x00000000058EC000-memory.dmp

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memory/4284-8-0x0000000074C20000-0x00000000753DC000-memory.dmp

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memory/5444-12-0x0000000074AB0000-0x000000007526C000-memory.dmp

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memory/5444-14-0x0000000074AB0000-0x000000007526C000-memory.dmp

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