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

2812 powershell.exe
Executes dropped EXE 1 IoCs

Processes:

Client.exe

pid process

2544 Client.exe

pid	process
2812	powershell.exe

pid	process
2544	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-1-5-21-312935884-697965778-3955649944-1000\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

2 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 1 IoCs

Processes:

powershell.exe

pid process

2812 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exeClient.exe

description pid process

Token: SeDebugPrivilege 2812 powershell.exe
Token: SeDebugPrivilege 2544 Client.exe

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

pid	process
2812	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2812	powershell.exe
Token: SeDebugPrivilege	2544	Client.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

XBinderOutput.exe

description	pid	process	target process
PID 2780 wrote to memory of 2812	2780	XBinderOutput.exe	powershell.exe
PID 2780 wrote to memory of 2812	2780	XBinderOutput.exe	powershell.exe
PID 2780 wrote to memory of 2812	2780	XBinderOutput.exe	powershell.exe
PID 2780 wrote to memory of 2544	2780	XBinderOutput.exe	Client.exe
PID 2780 wrote to memory of 2544	2780	XBinderOutput.exe	Client.exe
PID 2780 wrote to memory of 2544	2780	XBinderOutput.exe	Client.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:2780

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:2812

C:\Users\Admin\AppData\Roaming\Client.exe
"C:\Users\Admin\AppData\Roaming\Client.exe"
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2544

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\Cab6A7.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar439A.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

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

Filesize
47KB

MD5
44d12088a8d54d39588e4dac1b94afec

SHA1
2945aedf1dcdddfb90116b11121eb87e44386e4e

SHA256
05399ec3c3358a2fbf7c38cf026adb585de0f6015e44122900d5215132211307

SHA512
ad13eb4c0c14ae0dc7560501bd8af2a05f93657ca71deb911f9763bd4199aa203a3b8722c847c530260ac84dce3992fc0e3f403b83aee5ae4ffd5be6ec5fc195

Download Submit
memory/2544-35-0x0000000000BE0000-0x0000000000C44000-memory.dmp

Filesize
400KB

Download
memory/2544-17-0x0000000000CB0000-0x0000000000CC2000-memory.dmp

Filesize
72KB

Download
memory/2780-18-0x000007FEF5D10000-0x000007FEF66FC000-memory.dmp

Filesize
9.9MB

Download
memory/2780-0-0x000007FEF5D13000-0x000007FEF5D14000-memory.dmp

Filesize
4KB

Download
memory/2780-3-0x000007FEF5D10000-0x000007FEF66FC000-memory.dmp

Filesize
9.9MB

Download
memory/2780-2-0x0000000000150000-0x000000000015C000-memory.dmp

Filesize
48KB

Download
memory/2780-1-0x00000000008D0000-0x00000000008F0000-memory.dmp

Filesize
128KB

Download
memory/2812-10-0x0000000002910000-0x0000000002918000-memory.dmp

Filesize
32KB

Download
memory/2812-9-0x000000001B530000-0x000000001B812000-memory.dmp

Filesize
2.9MB

Download
memory/2812-8-0x0000000002B80000-0x0000000002C00000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads