asyncrat | 06c73da1c0fdbb10efa56ee3a0fb13685c4b395e4aa9008024c657601f3960b3

General

Target

sample.exe
Size

194KB
MD5

76bea7506af30bdecc70c3d361819f28
SHA1

4a07972df9558c3bcfc932997d86453d9006ddbb
SHA256

06c73da1c0fdbb10efa56ee3a0fb13685c4b395e4aa9008024c657601f3960b3
SHA512

9815ab55d978a0c1974b29c82eff2b69d770a77fbbf157d8b3df807f31393de4f3a980460e24e4b2f62628ab36de95caf79e28fc0b21e9684e01762433549e30
SSDEEP

3072:euK0THf52i3H3bvOoAtLYJTlG/OwWREQjd2x:euK+cC3bjAaTc

Score

10^/10

asyncrat azazel rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Azazel

C2

azazelxd.duckdns.org:5555

127.0.0.1:5555

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
true
install_file
svchost.exe
install_folder
%AppData%

aes.plain

Signatures

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

Async RAT payload 5 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1108-54-0x0000000000390000-0x00000000003C6000-memory.dmp	asyncrat
\Users\Admin\AppData\Roaming\svchost.exe	asyncrat
C:\Users\Admin\AppData\Roaming\svchost.exe	asyncrat
C:\Users\Admin\AppData\Roaming\svchost.exe	asyncrat
behavioral1/memory/1760-68-0x00000000012A0000-0x00000000012D6000-memory.dmp	asyncrat

Executes dropped EXE 1 IoCs

Processes:

svchost.exe

pid process

1760 svchost.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

672 cmd.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

916 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1748 timeout.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

sample.exe

pid process

1108 sample.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

sample.exesvchost.exe

description pid process

Token: SeDebugPrivilege 1108 sample.exe
Token: SeDebugPrivilege 1760 svchost.exe

pid	process
1760	svchost.exe

pid	process
672	cmd.exe

pid	process
916	schtasks.exe

pid	process
1748	timeout.exe

pid	process
1108	sample.exe

description	pid	process
Token: SeDebugPrivilege	1108	sample.exe
Token: SeDebugPrivilege	1760	svchost.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

sample.execmd.execmd.exe

description	pid	process	target process
PID 1108 wrote to memory of 332	1108	sample.exe	cmd.exe
PID 1108 wrote to memory of 332	1108	sample.exe	cmd.exe
PID 1108 wrote to memory of 332	1108	sample.exe	cmd.exe
PID 1108 wrote to memory of 332	1108	sample.exe	cmd.exe
PID 1108 wrote to memory of 672	1108	sample.exe	cmd.exe
PID 1108 wrote to memory of 672	1108	sample.exe	cmd.exe
PID 1108 wrote to memory of 672	1108	sample.exe	cmd.exe
PID 1108 wrote to memory of 672	1108	sample.exe	cmd.exe
PID 672 wrote to memory of 1748	672	cmd.exe	timeout.exe
PID 672 wrote to memory of 1748	672	cmd.exe	timeout.exe
PID 672 wrote to memory of 1748	672	cmd.exe	timeout.exe
PID 672 wrote to memory of 1748	672	cmd.exe	timeout.exe
PID 332 wrote to memory of 916	332	cmd.exe	schtasks.exe
PID 332 wrote to memory of 916	332	cmd.exe	schtasks.exe
PID 332 wrote to memory of 916	332	cmd.exe	schtasks.exe
PID 332 wrote to memory of 916	332	cmd.exe	schtasks.exe
PID 672 wrote to memory of 1760	672	cmd.exe	svchost.exe
PID 672 wrote to memory of 1760	672	cmd.exe	svchost.exe
PID 672 wrote to memory of 1760	672	cmd.exe	svchost.exe
PID 672 wrote to memory of 1760	672	cmd.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\sample.exe
"C:\Users\Admin\AppData\Local\Temp\sample.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1108

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:332

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
3⤵
- Creates scheduled task(s)
PID:916

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp2859.tmp.bat""
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:672

C:\Windows\SysWOW64\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:1748

C:\Users\Admin\AppData\Roaming\svchost.exe
"C:\Users\Admin\AppData\Roaming\svchost.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1760

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\tmp2859.tmp.bat
Filesize
151B

MD5
70b38e94edbeb623892379b967d233d5

SHA1
cbd4bd84c632a9594574dac8acac4141c555c955

SHA256
07da80bcaf1b4effd276474fb482fbd9a469ac781ebc286c681ab0c29db8241d

SHA512
0c9575b1d38d9b31e7a32c164d606112f17645205881775534e8d42c6764d7969844b49ae531e700019a7a37fbae2fcf1f2810b6deccbbdfb9acc5fda1aa590e

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp2859.tmp.bat
Filesize
151B

MD5
70b38e94edbeb623892379b967d233d5

SHA1
cbd4bd84c632a9594574dac8acac4141c555c955

SHA256
07da80bcaf1b4effd276474fb482fbd9a469ac781ebc286c681ab0c29db8241d

SHA512
0c9575b1d38d9b31e7a32c164d606112f17645205881775534e8d42c6764d7969844b49ae531e700019a7a37fbae2fcf1f2810b6deccbbdfb9acc5fda1aa590e

Download Submit
C:\Users\Admin\AppData\Roaming\svchost.exe
Filesize
194KB

MD5
76bea7506af30bdecc70c3d361819f28

SHA1
4a07972df9558c3bcfc932997d86453d9006ddbb

SHA256
06c73da1c0fdbb10efa56ee3a0fb13685c4b395e4aa9008024c657601f3960b3

SHA512
9815ab55d978a0c1974b29c82eff2b69d770a77fbbf157d8b3df807f31393de4f3a980460e24e4b2f62628ab36de95caf79e28fc0b21e9684e01762433549e30

Download Submit
C:\Users\Admin\AppData\Roaming\svchost.exe
Filesize
194KB

MD5
76bea7506af30bdecc70c3d361819f28

SHA1
4a07972df9558c3bcfc932997d86453d9006ddbb

SHA256
06c73da1c0fdbb10efa56ee3a0fb13685c4b395e4aa9008024c657601f3960b3

SHA512
9815ab55d978a0c1974b29c82eff2b69d770a77fbbf157d8b3df807f31393de4f3a980460e24e4b2f62628ab36de95caf79e28fc0b21e9684e01762433549e30

Download Submit
\Users\Admin\AppData\Roaming\svchost.exe
Filesize
194KB

MD5
76bea7506af30bdecc70c3d361819f28

SHA1
4a07972df9558c3bcfc932997d86453d9006ddbb

SHA256
06c73da1c0fdbb10efa56ee3a0fb13685c4b395e4aa9008024c657601f3960b3

SHA512
9815ab55d978a0c1974b29c82eff2b69d770a77fbbf157d8b3df807f31393de4f3a980460e24e4b2f62628ab36de95caf79e28fc0b21e9684e01762433549e30

Download Submit
memory/1108-54-0x0000000000390000-0x00000000003C6000-memory.dmp

Filesize
216KB

Download
memory/1108-55-0x0000000004C30000-0x0000000004C70000-memory.dmp

Filesize
256KB

Download
memory/1760-68-0x00000000012A0000-0x00000000012D6000-memory.dmp

Filesize
216KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads