asyncrat | d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb

Analysis

max time kernel
148s
max time network
151s
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, 21:36

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General

Target
d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
Size 45KB
Sample260804-1f8m5shc27
SHA256 d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb
MD5 9d690296aca63eb9c48bda59d198ab85
SHA1 54ab7f1d25c983753e6bd635a07a214e11c81573
SHA512 5f420ce724a5bf53e273aeb049287332d801ab1b2f962b761e4adad449ac2cef8fcd2931d5c7bf8753b42762f6b23566430143c31325aa8135f08e393406d3e1
SSDEEP 768:QuflpT8AkKuWUch7wmo2q96S7synzuOPIzzjbzgXYi9xHDWbaM87NuPcBDZTx:QuflpT8Hv2XSYh3z3bsX19BCbaMPSdTx
TLSH
T11F232B003BE9812BF2BE4F7899F22145467AF1673603DA4A1CC451DB5623FC6DA426FE
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
shamoon.sex18.me:80
shamoon.sex18.me:22
shamoon.sex18.me:8080
shamoon.sex18.me:8880
shamoon.sex18.me:2052
shamoon.sex18.me:2082
shamoon.sex18.me:2086
shamoon.sex18.me:2095
shamoon.sex18.me:443
shamoon.sex18.me:2053
shamoon.sex18.me:2083
shamoon.sex18.me:2087
shamoon.sex18.me:2096
shamoon.sex18.me:8443
socgholish.sex18.me:80
socgholish.sex18.me:22
socgholish.sex18.me:8080
socgholish.sex18.me:8880
socgholish.sex18.me:2052
socgholish.sex18.me:2082
socgholish.sex18.me:2086
socgholish.sex18.me:2095
socgholish.sex18.me:443
socgholish.sex18.me:2053
socgholish.sex18.me:2083
socgholish.sex18.me:2087
socgholish.sex18.me:2096
socgholish.sex18.me:8443

Mutex

fm4rscJJi88Q

Attributes

delay
0
install
true
install_file
l8s2wno.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/0x000d00000001c539-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
756	l8s2wno.exe
1496	l8s2wno.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	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
5584	cmd.exe
5132	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	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	l8s2wno.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	l8s2wno.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
3088	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
916	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
Token: SeDebugPrivilege	756	l8s2wno.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4228 wrote to memory of 5584	4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe	89
PID 4228 wrote to memory of 5132	4228	d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe	90
PID 5584 wrote to memory of 916	5584	cmd.exe	93
PID 5132 wrote to memory of 3088	5132	cmd.exe	94
PID 5132 wrote to memory of 1496	5132	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe
"C:\Users\Admin\AppData\Local\Temp\d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4228
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "l8s2wno" /tr '"C:\Users\Admin\AppData\Roaming\l8s2wno.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5584
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "l8s2wno" /tr '"C:\Users\Admin\AppData\Roaming\l8s2wno.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:916
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp3ABD.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5132
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3088
- - C:\Users\Admin\AppData\Roaming\l8s2wno.exe
    "C:\Users\Admin\AppData\Roaming\l8s2wno.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1496

C:\Users\Admin\AppData\Roaming\l8s2wno.exe
"C:\Users\Admin\AppData\Roaming\l8s2wno.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:756

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

tmp3ABD.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp3ABD.tmp.bat
Size 151B
SHA256 369945187288a33611c2d9e4aa22072dd91f556f2fc5eb01b69246839aee45c6
MD5 82258033b6ef65dbd12513b236df486f
SHA1 37697d06cb02d30352da8624108b5b28a3bb0d93
SHA512 4a7f8f5946f51e234349c5c515bddb5a0de0188f58b041eed9ab55c8871343a2fe443ddd86d2e327affa7262bac437b4a1e151df77c4b20e6eb8536092185cee
TLSH
T1B8C08C5291C6AA5E2805682702FAD8BE91AAA8193F40AB408308880D6680898E1D9245
MD5 SHA1 SHA512 TLSH

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l8s2wno.exe

Path C:\Users\Admin\AppData\Roaming\l8s2wno.exe
Size 45KB
SHA256 d0f9b5b8cc98b85872080d2484db171edef1fa535824305beb035fbf1db021bb
MD5 9d690296aca63eb9c48bda59d198ab85
SHA1 54ab7f1d25c983753e6bd635a07a214e11c81573
SHA512 5f420ce724a5bf53e273aeb049287332d801ab1b2f962b761e4adad449ac2cef8fcd2931d5c7bf8753b42762f6b23566430143c31325aa8135f08e393406d3e1
SSDEEP 768:QuflpT8AkKuWUch7wmo2q96S7synzuOPIzzjbzgXYi9xHDWbaM87NuPcBDZTx:QuflpT8Hv2XSYh3z3bsX19BCbaMPSdTx
TLSH
T11F232B003BE9812BF2BE4F7899F22145467AF1673603DA4A1CC451DB5623FC6DA426FE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/756-12-0x0000000074F60000-0x000000007571C000-memory.dmp

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memory/756-14-0x0000000074F60000-0x000000007571C000-memory.dmp

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memory/4228-0-0x00000000750E2000-0x00000000750E3000-memory.dmp

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memory/4228-1-0x0000000000D90000-0x0000000000DA2000-memory.dmp

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memory/4228-2-0x00000000750D0000-0x000000007588C000-memory.dmp

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memory/4228-3-0x00000000057D0000-0x000000000586C000-memory.dmp

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memory/4228-8-0x00000000750D0000-0x000000007588C000-memory.dmp

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