asyncrat | bf765420bbb03b49f594002013915e508160a4efede03e051075cabad32c51b3

General

Target

168ee8403709fc4848328051ff819157.exe
Size

70KB
MD5

168ee8403709fc4848328051ff819157
SHA1

bf96e4267c22e283d192e34fc50ded40802ac83c
SHA256

bf765420bbb03b49f594002013915e508160a4efede03e051075cabad32c51b3
SHA512

9e86bdb6f49881fc39a1cea97047164dc02e21cb8bfc43526997840effcde497c3411bfed256fce7738f3b3a3814d1fb8f4295cec09034453aff326cf97a449c
SSDEEP

1536:L2pM3Poamv/TQ6MLXIRakKVyreBOPew0ikXx5utYdsOWg+7/MajDw:iW3ADXcBURL4OmikXbuuVA/Rw

Score

10^/10

asyncrat default persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

20.171.107.243:6606

20.171.107.243:7707

20.171.107.243:8808

rositxado.tk:6606

rositxado.tk:7707

rositxado.tk:8808

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat

Async RAT payload 6 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1968-62-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1968-63-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1968-64-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1968-65-0x000000000040DC5E-mapping.dmp	asyncrat
behavioral1/memory/1968-67-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1968-69-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

powershell.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\HWMonitor = "C:\\Users\\Admin\\AppData\\Roaming\\vlc\\HWMonitor.exe"	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

168ee8403709fc4848328051ff819157.exe

description pid process target process

PID 768 set thread context of 1968 768 168ee8403709fc4848328051ff819157.exe RegAsm.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

1064 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exeRegAsm.exe

description pid process

Token: SeDebugPrivilege 1064 powershell.exe
Token: SeDebugPrivilege 1968 RegAsm.exe

description	pid	process	target process
PID 768 set thread context of 1968	768	168ee8403709fc4848328051ff819157.exe	RegAsm.exe

pid	process
1064	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1064	powershell.exe
Token: SeDebugPrivilege	1968	RegAsm.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

168ee8403709fc4848328051ff819157.exe

description	pid	process	target process
PID 768 wrote to memory of 1064	768	168ee8403709fc4848328051ff819157.exe	powershell.exe
PID 768 wrote to memory of 1064	768	168ee8403709fc4848328051ff819157.exe	powershell.exe
PID 768 wrote to memory of 1064	768	168ee8403709fc4848328051ff819157.exe	powershell.exe
PID 768 wrote to memory of 1064	768	168ee8403709fc4848328051ff819157.exe	powershell.exe
PID 768 wrote to memory of 1968	768	168ee8403709fc4848328051ff819157.exe	RegAsm.exe
PID 768 wrote to memory of 1968	768	168ee8403709fc4848328051ff819157.exe	RegAsm.exe
PID 768 wrote to memory of 1968	768	168ee8403709fc4848328051ff819157.exe	RegAsm.exe
PID 768 wrote to memory of 1968	768	168ee8403709fc4848328051ff819157.exe	RegAsm.exe
PID 768 wrote to memory of 1968	768	168ee8403709fc4848328051ff819157.exe	RegAsm.exe
PID 768 wrote to memory of 1968	768	168ee8403709fc4848328051ff819157.exe	RegAsm.exe
PID 768 wrote to memory of 1968	768	168ee8403709fc4848328051ff819157.exe	RegAsm.exe
PID 768 wrote to memory of 1968	768	168ee8403709fc4848328051ff819157.exe	RegAsm.exe
PID 768 wrote to memory of 1968	768	168ee8403709fc4848328051ff819157.exe	RegAsm.exe
PID 768 wrote to memory of 1968	768	168ee8403709fc4848328051ff819157.exe	RegAsm.exe
PID 768 wrote to memory of 1968	768	168ee8403709fc4848328051ff819157.exe	RegAsm.exe
PID 768 wrote to memory of 1968	768	168ee8403709fc4848328051ff819157.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\168ee8403709fc4848328051ff819157.exe
"C:\Users\Admin\AppData\Local\Temp\168ee8403709fc4848328051ff819157.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:768

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"powershell.exe" Remove-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'HWMonitor';New-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'HWMonitor' -Value '"C:\Users\Admin\AppData\Roaming\vlc\HWMonitor.exe"' -PropertyType 'String'
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1064

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1968

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/768-54-0x0000000000B60000-0x0000000000B78000-memory.dmp

Filesize
96KB

Download
memory/768-55-0x0000000076871000-0x0000000076873000-memory.dmp

Filesize
8KB

Download
memory/768-56-0x0000000000460000-0x0000000000476000-memory.dmp

Filesize
88KB

Download
memory/1064-57-0x0000000000000000-mapping.dmp

Download
memory/1064-72-0x0000000074EE0000-0x000000007548B000-memory.dmp

Filesize
5.7MB

Download
memory/1064-71-0x0000000074EE0000-0x000000007548B000-memory.dmp

Filesize
5.7MB

Download
memory/1968-62-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1968-63-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1968-64-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1968-65-0x000000000040DC5E-mapping.dmp

Download
memory/1968-67-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1968-69-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1968-60-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1968-59-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads