asyncrat | abf0b9462cbb32034ef3f62ad470290ec43407085eb691ac3f61498dab7fd36c

General

Target

XBinderOutput.exe
Size

85KB
MD5

92d502cd0adf7ed26317f11a5b4ad760
SHA1

09b70d4087a9196eb842acb566f72cfd08825eeb
SHA256

abf0b9462cbb32034ef3f62ad470290ec43407085eb691ac3f61498dab7fd36c
SHA512

d905b7ecf04ef0594eb9e5c26c71a512c8bd17705ea1c3854169100d6bffc2a42f457ff4c0d12f2deea311fa20b62dff4cf828b583a1201e5bb178fbae5c430c
SSDEEP

1536:lMhlS6nzjc1fI7//fUciArlGhxuDuKSGpnb5qUV0Iqwfl3vcRd:l64gzY1fY//eh0Xb5uIqwN0

Score

10^/10

asyncrat test execution persistence rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Test

C2

5.tcp.eu.ngrok.io:19854

Mutex

DcRatMutex_adlzxvdama

Attributes

delay
1
install
false
install_folder
%AppData%

aes.plain

Signatures

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

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\Client.exe	family_asyncrat

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

4488 powershell.exe
Executes dropped EXE 1 IoCs

Processes:

Client.exe

pid process

408 Client.exe

pid	process
4488	powershell.exe

pid	process
408	Client.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

XBinderOutput.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3587106988-279496464-3440778474-1000\Software\Microsoft\Windows\CurrentVersion\Run\Client = "C:\\Users\\Admin\\AppData\\Roaming\\Client.exe"	XBinderOutput.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 1 IoCs

Web Service
T1102

Processes:

flow ioc

11 5.tcp.eu.ngrok.io
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

powershell.exeClient.exe

pid process

4488 powershell.exe
4488 powershell.exe
408 Client.exe
408 Client.exe
408 Client.exe
408 Client.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exeClient.exe

description pid process

Token: SeDebugPrivilege 4488 powershell.exe
Token: SeDebugPrivilege 408 Client.exe

flow	ioc
11	5.tcp.eu.ngrok.io

pid	process
4488	powershell.exe
4488	powershell.exe
408	Client.exe
408	Client.exe
408	Client.exe
408	Client.exe

description	pid	process
Token: SeDebugPrivilege	4488	powershell.exe
Token: SeDebugPrivilege	408	Client.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

XBinderOutput.exeClient.exe

description	pid	process	target process
PID 2920 wrote to memory of 4488	2920	XBinderOutput.exe	powershell.exe
PID 2920 wrote to memory of 4488	2920	XBinderOutput.exe	powershell.exe
PID 2920 wrote to memory of 408	2920	XBinderOutput.exe	Client.exe
PID 2920 wrote to memory of 408	2920	XBinderOutput.exe	Client.exe
PID 408 wrote to memory of 2728	408	Client.exe	cmd.exe
PID 408 wrote to memory of 2728	408	Client.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\XBinderOutput.exe
"C:\Users\Admin\AppData\Local\Temp\XBinderOutput.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2920

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\Client.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4488

C:\Users\Admin\AppData\Roaming\Client.exe
"C:\Users\Admin\AppData\Roaming\Client.exe"
2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:408

C:\Windows\SYSTEM32\cmd.exe
"cmd"
3⤵
PID:2728

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dkkdqwlg.0ac.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\Client.exe

Filesize
47KB

MD5
44d12088a8d54d39588e4dac1b94afec

SHA1
2945aedf1dcdddfb90116b11121eb87e44386e4e

SHA256
05399ec3c3358a2fbf7c38cf026adb585de0f6015e44122900d5215132211307

SHA512
ad13eb4c0c14ae0dc7560501bd8af2a05f93657ca71deb911f9763bd4199aa203a3b8722c847c530260ac84dce3992fc0e3f403b83aee5ae4ffd5be6ec5fc195

Download Submit
memory/408-37-0x000000001D9B0000-0x000000001D9C0000-memory.dmp

Filesize
64KB

Download
memory/408-36-0x000000001D9D0000-0x000000001D9EE000-memory.dmp

Filesize
120KB

Download
memory/408-35-0x000000001D990000-0x000000001D9AA000-memory.dmp

Filesize
104KB

Download
memory/408-34-0x000000001DA10000-0x000000001DA86000-memory.dmp

Filesize
472KB

Download
memory/408-30-0x0000000000C80000-0x0000000000C92000-memory.dmp

Filesize
72KB

Download
memory/2920-3-0x00007FF9EA4C0000-0x00007FF9EAF82000-memory.dmp

Filesize
10.8MB

Download
memory/2920-31-0x00007FF9EA4C0000-0x00007FF9EAF82000-memory.dmp

Filesize
10.8MB

Download
memory/2920-0-0x00007FF9EA4C3000-0x00007FF9EA4C5000-memory.dmp

Filesize
8KB

Download
memory/2920-2-0x0000000001860000-0x000000000186C000-memory.dmp

Filesize
48KB

Download
memory/2920-1-0x0000000000F20000-0x0000000000F40000-memory.dmp

Filesize
128KB

Download
memory/4488-16-0x00007FF9EA4C0000-0x00007FF9EAF82000-memory.dmp

Filesize
10.8MB

Download
memory/4488-10-0x00000203F8250000-0x00000203F8272000-memory.dmp

Filesize
136KB

Download
memory/4488-13-0x00007FF9EA4C0000-0x00007FF9EAF82000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads