asyncrat | 9bbd2c016eefb9e2edab3e8202e8a848bebac36f1565b596c54a0c3278a182dc

General

Target

9BBD2C016EEFB9E2EDAB3E8202E8A848BEBAC36F1565B.exe
Size

47KB
MD5

3693114744003b6641e3c767518e47da
SHA1

22df3884394cedffe035dfd1e73d2969468ec793
SHA256

9bbd2c016eefb9e2edab3e8202e8a848bebac36f1565b596c54a0c3278a182dc
SHA512

eb278143a1fa490d497d9869b50697a51d562504d0ee50f45a0fcb95654bc2a1b4534757ec7e3f8edd8a92742ef3855d91e5318b64cc0fb1b925f9d07d268836
SSDEEP

768:0oFKMJMj5I4G3y/NlIR2qeYhQjCY7jbzgr3irE5a4g1fVMjrClZZ2tYcFmVc6K:0oFKMJezqzhMvbsrSX38urZKmVcl

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.6D

Botnet

Default

C2

seznam.zapto.org:6606

seznam.zapto.org:7707

seznam.zapto.org:8808

milla11.publicvm.com:6606

milla11.publicvm.com:7707

milla11.publicvm.com:8808

Mutex

trffisyuiifgqcpeof

Attributes

delay
5
install
true
install_file
explorere.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/1244-54-0x0000000000F60000-0x0000000000F72000-memory.dmp	asyncrat
C:\Users\Admin\AppData\Roaming\explorere.exe	asyncrat
C:\Users\Admin\AppData\Roaming\explorere.exe	asyncrat
behavioral1/memory/1700-70-0x0000000001370000-0x0000000001382000-memory.dmp	asyncrat
behavioral1/memory/1700-71-0x0000000000A40000-0x0000000000AC0000-memory.dmp	asyncrat

Executes dropped EXE 1 IoCs

Processes:

explorere.exe

pid process

1700 explorere.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

1792 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1672 timeout.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

9BBD2C016EEFB9E2EDAB3E8202E8A848BEBAC36F1565B.exe

pid process

1244 9BBD2C016EEFB9E2EDAB3E8202E8A848BEBAC36F1565B.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

9BBD2C016EEFB9E2EDAB3E8202E8A848BEBAC36F1565B.exeexplorere.exe

description pid process

Token: SeDebugPrivilege 1244 9BBD2C016EEFB9E2EDAB3E8202E8A848BEBAC36F1565B.exe
Token: SeDebugPrivilege 1700 explorere.exe

pid	process
1700	explorere.exe

pid	process
1792	schtasks.exe

pid	process
1672	timeout.exe

pid	process
1244	9BBD2C016EEFB9E2EDAB3E8202E8A848BEBAC36F1565B.exe

description	pid	process
Token: SeDebugPrivilege	1244	9BBD2C016EEFB9E2EDAB3E8202E8A848BEBAC36F1565B.exe
Token: SeDebugPrivilege	1700	explorere.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

9BBD2C016EEFB9E2EDAB3E8202E8A848BEBAC36F1565B.execmd.execmd.exe

description	pid	process	target process
PID 1244 wrote to memory of 1436	1244	9BBD2C016EEFB9E2EDAB3E8202E8A848BEBAC36F1565B.exe	cmd.exe
PID 1244 wrote to memory of 1436	1244	9BBD2C016EEFB9E2EDAB3E8202E8A848BEBAC36F1565B.exe	cmd.exe
PID 1244 wrote to memory of 1436	1244	9BBD2C016EEFB9E2EDAB3E8202E8A848BEBAC36F1565B.exe	cmd.exe
PID 1436 wrote to memory of 1792	1436	cmd.exe	schtasks.exe
PID 1436 wrote to memory of 1792	1436	cmd.exe	schtasks.exe
PID 1436 wrote to memory of 1792	1436	cmd.exe	schtasks.exe
PID 1244 wrote to memory of 768	1244	9BBD2C016EEFB9E2EDAB3E8202E8A848BEBAC36F1565B.exe	cmd.exe
PID 1244 wrote to memory of 768	1244	9BBD2C016EEFB9E2EDAB3E8202E8A848BEBAC36F1565B.exe	cmd.exe
PID 1244 wrote to memory of 768	1244	9BBD2C016EEFB9E2EDAB3E8202E8A848BEBAC36F1565B.exe	cmd.exe
PID 768 wrote to memory of 1672	768	cmd.exe	timeout.exe
PID 768 wrote to memory of 1672	768	cmd.exe	timeout.exe
PID 768 wrote to memory of 1672	768	cmd.exe	timeout.exe
PID 768 wrote to memory of 1700	768	cmd.exe	explorere.exe
PID 768 wrote to memory of 1700	768	cmd.exe	explorere.exe
PID 768 wrote to memory of 1700	768	cmd.exe	explorere.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\9BBD2C016EEFB9E2EDAB3E8202E8A848BEBAC36F1565B.exe
"C:\Users\Admin\AppData\Local\Temp\9BBD2C016EEFB9E2EDAB3E8202E8A848BEBAC36F1565B.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1244

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /ru system /rl highest /tn 9BBD2C016EEFB9E2EDAB3E8202E8A848BEBAC36F1565B /tr '"C:\Users\Admin\AppData\Roaming\explorere.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:1436

C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /ru system /rl highest /tn 9BBD2C016EEFB9E2EDAB3E8202E8A848BEBAC36F1565B /tr '"C:\Users\Admin\AppData\Roaming\explorere.exe"'
3⤵
- Creates scheduled task(s)
PID:1792

C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp694F.tmp.bat""
2⤵
- Suspicious use of WriteProcessMemory
PID:768

C:\Windows\system32\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:1672

C:\Users\Admin\AppData\Roaming\explorere.exe
"C:\Users\Admin\AppData\Roaming\explorere.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1700

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

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp694F.tmp.bat
Filesize
153B

MD5
44aece25e0fb1d6f5a717946b5b6948c

SHA1
9f8fcb64eac6857459fb752b9cfec1496b589a3f

SHA256
046e61521c86b6bfdb3e3cb541afc6da9698bbe85e0196ded47547225a23c59f

SHA512
be071efd1f316b11a9e4567c84ce265e955144a4052e2d37be7419413d844eed096a50e7d7e225061359edb21a03e1c28ed13c19447e26e60f8d99c6174e9ae0

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp694F.tmp.bat
Filesize
153B

MD5
44aece25e0fb1d6f5a717946b5b6948c

SHA1
9f8fcb64eac6857459fb752b9cfec1496b589a3f

SHA256
046e61521c86b6bfdb3e3cb541afc6da9698bbe85e0196ded47547225a23c59f

SHA512
be071efd1f316b11a9e4567c84ce265e955144a4052e2d37be7419413d844eed096a50e7d7e225061359edb21a03e1c28ed13c19447e26e60f8d99c6174e9ae0

Download Submit
C:\Users\Admin\AppData\Roaming\explorere.exe
Filesize
47KB

MD5
3693114744003b6641e3c767518e47da

SHA1
22df3884394cedffe035dfd1e73d2969468ec793

SHA256
9bbd2c016eefb9e2edab3e8202e8a848bebac36f1565b596c54a0c3278a182dc

SHA512
eb278143a1fa490d497d9869b50697a51d562504d0ee50f45a0fcb95654bc2a1b4534757ec7e3f8edd8a92742ef3855d91e5318b64cc0fb1b925f9d07d268836

Download Submit
C:\Users\Admin\AppData\Roaming\explorere.exe
Filesize
47KB

MD5
3693114744003b6641e3c767518e47da

SHA1
22df3884394cedffe035dfd1e73d2969468ec793

SHA256
9bbd2c016eefb9e2edab3e8202e8a848bebac36f1565b596c54a0c3278a182dc

SHA512
eb278143a1fa490d497d9869b50697a51d562504d0ee50f45a0fcb95654bc2a1b4534757ec7e3f8edd8a92742ef3855d91e5318b64cc0fb1b925f9d07d268836

Download Submit
memory/1244-54-0x0000000000F60000-0x0000000000F72000-memory.dmp

Filesize
72KB

Download
memory/1244-57-0x000000001B2C0000-0x000000001B340000-memory.dmp

Filesize
512KB

Download
memory/1700-70-0x0000000001370000-0x0000000001382000-memory.dmp

Filesize
72KB

Download
memory/1700-71-0x0000000000A40000-0x0000000000AC0000-memory.dmp

Filesize
512KB

Download
memory/1700-89-0x0000000000A40000-0x0000000000AC0000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads