asyncrat | 815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b

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
03/08/2026, 08:50

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General

Target
815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
Size 45KB
Sample260803-kr2e7sscpc
SHA256 815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b
MD5 b812887a37a8847c6016fe339b7ec6af
SHA1 dc516d4db1ee2cd29381b236da196400586c5c13
SHA512 4f51ff835dec6794906dc1ad727bfb092f6928289a2ebb696e935fe81c0bb84c9c7f7fc965bd8835a417568aeb3ac91d7a353ace22355d377e7320454d59bf8a
SSDEEP 768:0u2vpTD4U2ieWUsqfAmo2qj4ozfy3CKPItBjb6gX3i9By0dWUFiCkSKgBDZ8x:0u2vpTDe+22TRtRbtXS9By0kUkj+d8x
TLSH
T13D232A0037E8C12BF2BE5F7899F22145867AF6732A03D6491CC451DB5723BC68A526FE
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

xcavengon.click:80
xcavengon.click:22
xcavengon.click:8080
xcavengon.click:8880
xcavengon.click:2052
xcavengon.click:2082
xcavengon.click:2086
xcavengon.click:2095
xcavengon.click:443
xcavengon.click:2053
xcavengon.click:2083
xcavengon.click:2087
xcavengon.click:2096
xcavengon.click:8443
www.xcavengon.click:80
www.xcavengon.click:22
www.xcavengon.click:8080
www.xcavengon.click:8880
www.xcavengon.click:2052
www.xcavengon.click:2082
www.xcavengon.click:2086
www.xcavengon.click:2095
www.xcavengon.click:443
www.xcavengon.click:2053
www.xcavengon.click:2083
www.xcavengon.click:2087
www.xcavengon.click:2096
www.xcavengon.click:8443
fakeupdates.xcavengon.click:80
fakeupdates.xcavengon.click:22
fakeupdates.xcavengon.click:8080
fakeupdates.xcavengon.click:8880
fakeupdates.xcavengon.click:2052
fakeupdates.xcavengon.click:2082
fakeupdates.xcavengon.click:2086
fakeupdates.xcavengon.click:2095
fakeupdates.xcavengon.click:443
fakeupdates.xcavengon.click:2053
fakeupdates.xcavengon.click:2083
fakeupdates.xcavengon.click:2087
fakeupdates.xcavengon.click:2096
fakeupdates.xcavengon.click:8443
lokibot.xcavengon.click:80
lokibot.xcavengon.click:22
lokibot.xcavengon.click:8080
lokibot.xcavengon.click:8880
lokibot.xcavengon.click:2052
lokibot.xcavengon.click:2082
lokibot.xcavengon.click:2086
lokibot.xcavengon.click:2095
lokibot.xcavengon.click:443
lokibot.xcavengon.click:2053
lokibot.xcavengon.click:2083
lokibot.xcavengon.click:2087
lokibot.xcavengon.click:2096
lokibot.xcavengon.click:8443
ryuk.xcavengon.click:80
ryuk.xcavengon.click:22
ryuk.xcavengon.click:8080
ryuk.xcavengon.click:8880
ryuk.xcavengon.click:2052
ryuk.xcavengon.click:2082
ryuk.xcavengon.click:2086
ryuk.xcavengon.click:2095
ryuk.xcavengon.click:443
ryuk.xcavengon.click:2053
ryuk.xcavengon.click:2083
ryuk.xcavengon.click:2087
ryuk.xcavengon.click:2096
ryuk.xcavengon.click:8443
conti.xcavengon.click:80
conti.xcavengon.click:22
conti.xcavengon.click:8080
conti.xcavengon.click:8880
conti.xcavengon.click:2052
conti.xcavengon.click:2082
conti.xcavengon.click:2086
conti.xcavengon.click:2095
conti.xcavengon.click:443
conti.xcavengon.click:2053
conti.xcavengon.click:2083
conti.xcavengon.click:2087
conti.xcavengon.click:2096
conti.xcavengon.click:8443

Mutex

nDC06TIzqanS

Attributes

delay
0
install
true
install_file
mhmz8fb.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/0x000d00000001c5da-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
4508	mhmz8fb.exe
5768	mhmz8fb.exe

Outbound SSH connection to public host 2 TTPs 3 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	104.21.10.8:22
SSH destination	20	172.67.189.217:22
SSH destination	14	172.67.189.217:22

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
1344	cmd.exe
364	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	mhmz8fb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mhmz8fb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.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
2684	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
4580	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1372 wrote to memory of 1344	1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe	89
PID 1372 wrote to memory of 364	1372	815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe	91
PID 364 wrote to memory of 2684	364	cmd.exe	93
PID 1344 wrote to memory of 4580	1344	cmd.exe	94
PID 364 wrote to memory of 5768	364	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe
"C:\Users\Admin\AppData\Local\Temp\815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1372
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "mhmz8fb" /tr '"C:\Users\Admin\AppData\Roaming\mhmz8fb.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1344
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "mhmz8fb" /tr '"C:\Users\Admin\AppData\Roaming\mhmz8fb.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4580
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8301.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:364
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2684
- - C:\Users\Admin\AppData\Roaming\mhmz8fb.exe
    "C:\Users\Admin\AppData\Roaming\mhmz8fb.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5768

C:\Users\Admin\AppData\Roaming\mhmz8fb.exe
"C:\Users\Admin\AppData\Roaming\mhmz8fb.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4508

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

tmp8301.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp8301.tmp.bat
Size 151B
SHA256 e1c6c768d4b7f5a091228835f0553e1014032c364a48ebc5c4c7711206f22345
MD5 a2ef127ff3724e6a403d645927093240
SHA1 9e4086c7894b0bf7168d4d9cb734aa9de7ce3ffc
SHA512 fe68a0a63350e14abcb450d900b0b38a52319709a799e69bd25e986669c5e971241aef86304676bb3e54acae49fd836eb198f6d59e97dc1aadd960ad24ba5ce9
TLSH
T1F9C02B4352C6EA4EB905546303FAD4CCA172ED593F81FB50C344440F3280859F0DD342
MD5 SHA1 SHA512 TLSH

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mhmz8fb.exe

Path C:\Users\Admin\AppData\Roaming\mhmz8fb.exe
Size 45KB
SHA256 815f08f786d85e387bdbb334218c3c5acd8568202c09897c342aca428ad4440b
MD5 b812887a37a8847c6016fe339b7ec6af
SHA1 dc516d4db1ee2cd29381b236da196400586c5c13
SHA512 4f51ff835dec6794906dc1ad727bfb092f6928289a2ebb696e935fe81c0bb84c9c7f7fc965bd8835a417568aeb3ac91d7a353ace22355d377e7320454d59bf8a
SSDEEP 768:0u2vpTD4U2ieWUsqfAmo2qj4ozfy3CKPItBjb6gX3i9By0dWUFiCkSKgBDZ8x:0u2vpTDe+22TRtRbtXS9By0kUkj+d8x
TLSH
T13D232A0037E8C12BF2BE5F7899F22145867AF6732A03D6491CC451DB5723BC68A526FE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1372-0-0x00000000749A2000-0x00000000749A3000-memory.dmp

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memory/1372-1-0x00000000001F0000-0x0000000000202000-memory.dmp

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memory/1372-2-0x0000000074990000-0x000000007514C000-memory.dmp

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memory/1372-3-0x0000000004D40000-0x0000000004DDC000-memory.dmp

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memory/1372-9-0x0000000074990000-0x000000007514C000-memory.dmp

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memory/4508-12-0x0000000074990000-0x000000007514C000-memory.dmp

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memory/4508-14-0x0000000074990000-0x000000007514C000-memory.dmp

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