asyncrat | da6abb6f3aae250d50ed09b6eacc267c33e50895e3ebd7e6ba800ab018351ec5

General

Target

44e407b3de4a9865ab747bdca810b0b9.exe
Size

606KB
MD5

44e407b3de4a9865ab747bdca810b0b9
SHA1

6eb199e6837432d8acb98c03b22277f340726372
SHA256

da6abb6f3aae250d50ed09b6eacc267c33e50895e3ebd7e6ba800ab018351ec5
SHA512

db8e1652a6e8d90450114641f3573b9423bce4c27c237af49a59dc44acf929580cdf59e5c216391ef87c27c52fc610653d19bce2d1507e4d8f310b7d6dee8a4b

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

91.193.75.135:3030

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
false
install_file
exe
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/1780-67-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1780-68-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1780-69-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1780-70-0x000000000040D02E-mapping.dmp	asyncrat
behavioral1/memory/1780-72-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1780-74-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat

Suspicious use of SetThreadContext 1 IoCs

Processes:

44e407b3de4a9865ab747bdca810b0b9.exe

description pid process target process

PID 1988 set thread context of 1780 1988 44e407b3de4a9865ab747bdca810b0b9.exe 44e407b3de4a9865ab747bdca810b0b9.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1536 schtasks.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

1932 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 1932 powershell.exe

description	pid	process	target process
PID 1988 set thread context of 1780	1988	44e407b3de4a9865ab747bdca810b0b9.exe	44e407b3de4a9865ab747bdca810b0b9.exe

pid	process
1536	schtasks.exe

pid	process
1932	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1932	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

44e407b3de4a9865ab747bdca810b0b9.exe

description	pid	process	target process
PID 1988 wrote to memory of 1932	1988	44e407b3de4a9865ab747bdca810b0b9.exe	powershell.exe
PID 1988 wrote to memory of 1932	1988	44e407b3de4a9865ab747bdca810b0b9.exe	powershell.exe
PID 1988 wrote to memory of 1932	1988	44e407b3de4a9865ab747bdca810b0b9.exe	powershell.exe
PID 1988 wrote to memory of 1932	1988	44e407b3de4a9865ab747bdca810b0b9.exe	powershell.exe
PID 1988 wrote to memory of 1536	1988	44e407b3de4a9865ab747bdca810b0b9.exe	schtasks.exe
PID 1988 wrote to memory of 1536	1988	44e407b3de4a9865ab747bdca810b0b9.exe	schtasks.exe
PID 1988 wrote to memory of 1536	1988	44e407b3de4a9865ab747bdca810b0b9.exe	schtasks.exe
PID 1988 wrote to memory of 1536	1988	44e407b3de4a9865ab747bdca810b0b9.exe	schtasks.exe
PID 1988 wrote to memory of 1780	1988	44e407b3de4a9865ab747bdca810b0b9.exe	44e407b3de4a9865ab747bdca810b0b9.exe
PID 1988 wrote to memory of 1780	1988	44e407b3de4a9865ab747bdca810b0b9.exe	44e407b3de4a9865ab747bdca810b0b9.exe
PID 1988 wrote to memory of 1780	1988	44e407b3de4a9865ab747bdca810b0b9.exe	44e407b3de4a9865ab747bdca810b0b9.exe
PID 1988 wrote to memory of 1780	1988	44e407b3de4a9865ab747bdca810b0b9.exe	44e407b3de4a9865ab747bdca810b0b9.exe
PID 1988 wrote to memory of 1780	1988	44e407b3de4a9865ab747bdca810b0b9.exe	44e407b3de4a9865ab747bdca810b0b9.exe
PID 1988 wrote to memory of 1780	1988	44e407b3de4a9865ab747bdca810b0b9.exe	44e407b3de4a9865ab747bdca810b0b9.exe
PID 1988 wrote to memory of 1780	1988	44e407b3de4a9865ab747bdca810b0b9.exe	44e407b3de4a9865ab747bdca810b0b9.exe
PID 1988 wrote to memory of 1780	1988	44e407b3de4a9865ab747bdca810b0b9.exe	44e407b3de4a9865ab747bdca810b0b9.exe
PID 1988 wrote to memory of 1780	1988	44e407b3de4a9865ab747bdca810b0b9.exe	44e407b3de4a9865ab747bdca810b0b9.exe

C:\Users\Admin\AppData\Local\Temp\44e407b3de4a9865ab747bdca810b0b9.exe
"C:\Users\Admin\AppData\Local\Temp\44e407b3de4a9865ab747bdca810b0b9.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1988

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\RhFYnHFgJ.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1932

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RhFYnHFgJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB4CF.tmp"
2⤵
- Creates scheduled task(s)
PID:1536

C:\Users\Admin\AppData\Local\Temp\44e407b3de4a9865ab747bdca810b0b9.exe
"C:\Users\Admin\AppData\Local\Temp\44e407b3de4a9865ab747bdca810b0b9.exe"
2⤵
PID:1780

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB4CF.tmp
Filesize
1KB

MD5
2b80e4d163796d45836e02355cd73178

SHA1
d43b0f857893e3c4af08208bf10dd22a8e2bc48d

SHA256
2a2ee9fb1708f72d6f293542e3217c5606fd150d164ae52c9b7281568facdd94

SHA512
2f95dccac142ef9aee46ce98091a55d1a2e39ff5d01b9ee4fd67a7ccfc5874816c85ffed1235820095bbbd5a29ceef869ecd658bcd07d879b3b263ffb524589e

Download Submit
memory/1536-60-0x0000000000000000-mapping.dmp

Download
memory/1780-68-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1780-74-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1780-72-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1780-70-0x000000000040D02E-mapping.dmp

Download
memory/1780-69-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1780-64-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1780-65-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1780-67-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1932-75-0x000000006DA80000-0x000000006E02B000-memory.dmp

Filesize
5.7MB

Download
memory/1932-59-0x0000000000000000-mapping.dmp

Download
memory/1988-58-0x0000000005930000-0x0000000005992000-memory.dmp

Filesize
392KB

Download
memory/1988-63-0x0000000004970000-0x0000000004982000-memory.dmp

Filesize
72KB

Download
memory/1988-54-0x0000000000C80000-0x0000000000D1E000-memory.dmp

Filesize
632KB

Download
memory/1988-57-0x0000000000530000-0x000000000053A000-memory.dmp

Filesize
40KB

Download
memory/1988-56-0x00000000003A0000-0x00000000003B6000-memory.dmp

Filesize
88KB

Download
memory/1988-55-0x0000000075731000-0x0000000075733000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads