asyncrat | a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d

Analysis

max time kernel
148s
max time network
154s
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, 07:48

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General

Target
a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
Size 45KB
Sample260804-jnayeafe74
SHA256 a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d
MD5 b008683be6a9639be3504c2c5ba96567
SHA1 d9640d7b9a87a806d21ed1ae570847291943b886
SHA512 e6abb4d139ebd10c750b5853f9e72ba068a542955e3c1996c9883ec70a5975353581ec7ffb9dfda65b84cf6bbbb8006bae5170aa65415a9b86d079b150ea7487
SSDEEP 768:kuSOpTPTCFcWUeXa6mo2qA1cP0pycvHPIjzjbmgX3irukDPFaUSdBDZMx:kuSOpTPOP2FccMcvgj3b5XSfkzdMx
TLSH
T178232B0037E9823BF2BE4F7899F261458A7AE2637603D6491CC441DB5613FC6DA826FD
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
zeus.xcavengon.click:80
zeus.xcavengon.click:22
zeus.xcavengon.click:8080
zeus.xcavengon.click:8880
zeus.xcavengon.click:2052
zeus.xcavengon.click:2082
zeus.xcavengon.click:2086
zeus.xcavengon.click:2095
zeus.xcavengon.click:443
zeus.xcavengon.click:2053
zeus.xcavengon.click:2083
zeus.xcavengon.click:2087
zeus.xcavengon.click:2096
zeus.xcavengon.click:8443
downadup.xcavengon.click:80
downadup.xcavengon.click:22
downadup.xcavengon.click:8080
downadup.xcavengon.click:8880
downadup.xcavengon.click:2052
downadup.xcavengon.click:2082
downadup.xcavengon.click:2086
downadup.xcavengon.click:2095
downadup.xcavengon.click:443
downadup.xcavengon.click:2053
downadup.xcavengon.click:2083
downadup.xcavengon.click:2087
downadup.xcavengon.click:2096
downadup.xcavengon.click:8443
mydoom.xcavengon.click:80
mydoom.xcavengon.click:22
mydoom.xcavengon.click:8080
mydoom.xcavengon.click:8880
mydoom.xcavengon.click:2052
mydoom.xcavengon.click:2082
mydoom.xcavengon.click:2086
mydoom.xcavengon.click:2095
mydoom.xcavengon.click:443
mydoom.xcavengon.click:2053
mydoom.xcavengon.click:2083
mydoom.xcavengon.click:2087
mydoom.xcavengon.click:2096
mydoom.xcavengon.click:8443
nimda.xcavengon.click:80
nimda.xcavengon.click:22
nimda.xcavengon.click:8080
nimda.xcavengon.click:8880
nimda.xcavengon.click:2052
nimda.xcavengon.click:2082
nimda.xcavengon.click:2086
nimda.xcavengon.click:2095
nimda.xcavengon.click:443
nimda.xcavengon.click:2053
nimda.xcavengon.click:2083
nimda.xcavengon.click:2087
nimda.xcavengon.click:2096
nimda.xcavengon.click:8443

Mutex

cEy4xgYEmpxC

Attributes

delay
0
install
true
install_file
8jrz.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/0x000e00000001c5ab-10.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2640	8jrz.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	9	172.67.189.217:22
SSH destination	10	104.21.10.8:22

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
4172	cmd.exe
4260	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 6 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	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	8jrz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
3796	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
2148	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3452 wrote to memory of 4172	3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe	88
PID 3452 wrote to memory of 4260	3452	a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe	90
PID 4172 wrote to memory of 2148	4172	cmd.exe	92
PID 4260 wrote to memory of 3796	4260	cmd.exe	93

C:\Users\Admin\AppData\Local\Temp\a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe
"C:\Users\Admin\AppData\Local\Temp\a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3452
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "8jrz" /tr '"C:\Users\Admin\AppData\Roaming\8jrz.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4172
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "8jrz" /tr '"C:\Users\Admin\AppData\Roaming\8jrz.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2148
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpB3E5.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4260
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3796
- - C:\Users\Admin\AppData\Roaming\8jrz.exe
    "C:\Users\Admin\AppData\Roaming\8jrz.exe"
    3⤵
    PID:3752

C:\Users\Admin\AppData\Roaming\8jrz.exe
"C:\Users\Admin\AppData\Roaming\8jrz.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2640

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k GPSvcGroup
1⤵
PID:2728

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

tmpB3E5.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpB3E5.tmp.bat
Size 148B
SHA256 fa043afca33fb4e7980c28b6ef27abe6f83327f5627f327c412c960172b0eebf
MD5 402f5f75738528255e7751f1eb025ba5
SHA1 c53bb2f6492267e460b32e6821996c6f9a8e1312
SHA512 acb5615e81d1e12d69a59b73d0e619e45f44deb9d3349061f6efcd3870fcaeae7bd8459bed00fb018f24eb9a7661b8cd3a35333b1f1aaff5f4ed4cb57c5d6a7e
TLSH
T13EC02B4361C6EB0F6805147302FAD48D91726C293F40BF00D764401D168048CF0D93C1
MD5 SHA1 SHA512 TLSH

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8jrz.exe

Path C:\Users\Admin\AppData\Roaming\8jrz.exe
Size 45KB
SHA256 a890e45dae5019f102a25a17e1f42f4a721d7d3286d2a99dd2fc2bfa27b96e5d
MD5 b008683be6a9639be3504c2c5ba96567
SHA1 d9640d7b9a87a806d21ed1ae570847291943b886
SHA512 e6abb4d139ebd10c750b5853f9e72ba068a542955e3c1996c9883ec70a5975353581ec7ffb9dfda65b84cf6bbbb8006bae5170aa65415a9b86d079b150ea7487
SSDEEP 768:kuSOpTPTCFcWUeXa6mo2qA1cP0pycvHPIjzjbmgX3irukDPFaUSdBDZMx:kuSOpTPOP2FccMcvgj3b5XSfkzdMx
TLSH
T178232B0037E9823BF2BE4F7899F261458A7AE2637603D6491CC441DB5613FC6DA826FD
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2640-12-0x00000000748C0000-0x000000007507C000-memory.dmp

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memory/2640-14-0x00000000748C0000-0x000000007507C000-memory.dmp

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memory/3452-0-0x0000000074A42000-0x0000000074A43000-memory.dmp

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memory/3452-1-0x00000000001C0000-0x00000000001D2000-memory.dmp

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memory/3452-2-0x0000000074A30000-0x00000000751EC000-memory.dmp

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memory/3452-3-0x0000000002850000-0x00000000028EC000-memory.dmp

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memory/3452-8-0x0000000074A30000-0x00000000751EC000-memory.dmp

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