asyncrat | 0a5556be9428bb753fc53893a582fd42183762f198d830672666c706af6d6d78

General

Target

0A5556BE9428BB753FC53893A582FD42183762F198D83.exe
Size

47KB
MD5

725e1c369fb346eb8313e17fe8f7e328
SHA1

fbcdaa9b245834d26353b9ad10d26d180c696ac0
SHA256

0a5556be9428bb753fc53893a582fd42183762f198d830672666c706af6d6d78
SHA512

78676eb4182594c84c7e3a14b898fe0241eddd8a4ddfae2e154ee04c1a41773a92b1363c4aa3b2e42cb0871885864573038219526de32ae0352ae6858633c20e
SSDEEP

768:4oFKMJMj5I4G3y/Nu8+7lnu1c3fT89VnbC53tjbfgr3iAvj29nnmfJ7ClZF2tYch:4oFKMJeYBn6c3fT6i3lborScYnmfErF

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
6
install
true
install_file
explorere.exe
install_folder
%AppData%

aes.plain

Signatures

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

Async RAT payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4808-132-0x0000000000DA0000-0x0000000000DB2000-memory.dmp	asyncrat
C:\Users\Admin\AppData\Roaming\explorere.exe	asyncrat
C:\Users\Admin\AppData\Roaming\explorere.exe	asyncrat

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

0A5556BE9428BB753FC53893A582FD42183762F198D83.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	0A5556BE9428BB753FC53893A582FD42183762F198D83.exe

Executes dropped EXE 1 IoCs

Processes:

explorere.exe

pid process

676 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

4844 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

4132 timeout.exe

pid	process
676	explorere.exe

pid	process
4844	schtasks.exe

pid	process
4132	timeout.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

0A5556BE9428BB753FC53893A582FD42183762F198D83.exe

pid	process
4808	0A5556BE9428BB753FC53893A582FD42183762F198D83.exe
4808	0A5556BE9428BB753FC53893A582FD42183762F198D83.exe
4808	0A5556BE9428BB753FC53893A582FD42183762F198D83.exe
4808	0A5556BE9428BB753FC53893A582FD42183762F198D83.exe
4808	0A5556BE9428BB753FC53893A582FD42183762F198D83.exe
4808	0A5556BE9428BB753FC53893A582FD42183762F198D83.exe
4808	0A5556BE9428BB753FC53893A582FD42183762F198D83.exe
4808	0A5556BE9428BB753FC53893A582FD42183762F198D83.exe
4808	0A5556BE9428BB753FC53893A582FD42183762F198D83.exe
4808	0A5556BE9428BB753FC53893A582FD42183762F198D83.exe
4808	0A5556BE9428BB753FC53893A582FD42183762F198D83.exe
4808	0A5556BE9428BB753FC53893A582FD42183762F198D83.exe
4808	0A5556BE9428BB753FC53893A582FD42183762F198D83.exe
4808	0A5556BE9428BB753FC53893A582FD42183762F198D83.exe
4808	0A5556BE9428BB753FC53893A582FD42183762F198D83.exe
4808	0A5556BE9428BB753FC53893A582FD42183762F198D83.exe
4808	0A5556BE9428BB753FC53893A582FD42183762F198D83.exe
4808	0A5556BE9428BB753FC53893A582FD42183762F198D83.exe
4808	0A5556BE9428BB753FC53893A582FD42183762F198D83.exe
4808	0A5556BE9428BB753FC53893A582FD42183762F198D83.exe
4808	0A5556BE9428BB753FC53893A582FD42183762F198D83.exe
4808	0A5556BE9428BB753FC53893A582FD42183762F198D83.exe
4808	0A5556BE9428BB753FC53893A582FD42183762F198D83.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

0A5556BE9428BB753FC53893A582FD42183762F198D83.exeexplorere.exe

description pid process

Token: SeDebugPrivilege 4808 0A5556BE9428BB753FC53893A582FD42183762F198D83.exe
Token: SeDebugPrivilege 676 explorere.exe

description	pid	process
Token: SeDebugPrivilege	4808	0A5556BE9428BB753FC53893A582FD42183762F198D83.exe
Token: SeDebugPrivilege	676	explorere.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

0A5556BE9428BB753FC53893A582FD42183762F198D83.execmd.execmd.exe

description	pid	process	target process
PID 4808 wrote to memory of 4456	4808	0A5556BE9428BB753FC53893A582FD42183762F198D83.exe	cmd.exe
PID 4808 wrote to memory of 4456	4808	0A5556BE9428BB753FC53893A582FD42183762F198D83.exe	cmd.exe
PID 4808 wrote to memory of 548	4808	0A5556BE9428BB753FC53893A582FD42183762F198D83.exe	cmd.exe
PID 4808 wrote to memory of 548	4808	0A5556BE9428BB753FC53893A582FD42183762F198D83.exe	cmd.exe
PID 4456 wrote to memory of 4844	4456	cmd.exe	schtasks.exe
PID 4456 wrote to memory of 4844	4456	cmd.exe	schtasks.exe
PID 548 wrote to memory of 4132	548	cmd.exe	timeout.exe
PID 548 wrote to memory of 4132	548	cmd.exe	timeout.exe
PID 548 wrote to memory of 676	548	cmd.exe	explorere.exe
PID 548 wrote to memory of 676	548	cmd.exe	explorere.exe

C:\Users\Admin\AppData\Local\Temp\0A5556BE9428BB753FC53893A582FD42183762F198D83.exe
"C:\Users\Admin\AppData\Local\Temp\0A5556BE9428BB753FC53893A582FD42183762F198D83.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4808

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /ru system /rl highest /tn 0A5556BE9428BB753FC53893A582FD42183762F198D83 /tr '"C:\Users\Admin\AppData\Roaming\explorere.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:4456

C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /ru system /rl highest /tn 0A5556BE9428BB753FC53893A582FD42183762F198D83 /tr '"C:\Users\Admin\AppData\Roaming\explorere.exe"'
3⤵
- Creates scheduled task(s)
PID:4844

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp83FA.tmp.bat""
2⤵
- Suspicious use of WriteProcessMemory
PID:548

C:\Windows\system32\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:4132

C:\Users\Admin\AppData\Roaming\explorere.exe
"C:\Users\Admin\AppData\Roaming\explorere.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:676

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp83FA.tmp.bat
Filesize
153B

MD5
232bfb0a288b107d19d41f1489c6af1b

SHA1
df828d272d7d181354f57a4d0bb1015744dee8ef

SHA256
14404daafb9c056c5f2aa6fbfa13dceee3ead457d3263e0ea96ed73fa431be70

SHA512
af2791d0f2709233b462720c303105a71ae5b3d4969cc9fe287a267944da41f61cd890b94fec093470c0bd9e84e77405f356ef8aabdba10f44157960489a2e87

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

MD5
725e1c369fb346eb8313e17fe8f7e328

SHA1
fbcdaa9b245834d26353b9ad10d26d180c696ac0

SHA256
0a5556be9428bb753fc53893a582fd42183762f198d830672666c706af6d6d78

SHA512
78676eb4182594c84c7e3a14b898fe0241eddd8a4ddfae2e154ee04c1a41773a92b1363c4aa3b2e42cb0871885864573038219526de32ae0352ae6858633c20e

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

MD5
725e1c369fb346eb8313e17fe8f7e328

SHA1
fbcdaa9b245834d26353b9ad10d26d180c696ac0

SHA256
0a5556be9428bb753fc53893a582fd42183762f198d830672666c706af6d6d78

SHA512
78676eb4182594c84c7e3a14b898fe0241eddd8a4ddfae2e154ee04c1a41773a92b1363c4aa3b2e42cb0871885864573038219526de32ae0352ae6858633c20e

Download Submit
memory/548-135-0x0000000000000000-mapping.dmp

Download
memory/676-140-0x0000000000000000-mapping.dmp

Download
memory/676-143-0x00007FFA79FD0000-0x00007FFA7AA91000-memory.dmp

Filesize
10.8MB

Download
memory/676-144-0x00007FFA79FD0000-0x00007FFA7AA91000-memory.dmp

Filesize
10.8MB

Download
memory/4132-139-0x0000000000000000-mapping.dmp

Download
memory/4456-134-0x0000000000000000-mapping.dmp

Download
memory/4808-137-0x00007FFA79FD0000-0x00007FFA7AA91000-memory.dmp

Filesize
10.8MB

Download
memory/4808-133-0x00007FFA79FD0000-0x00007FFA7AA91000-memory.dmp

Filesize
10.8MB

Download
memory/4808-132-0x0000000000DA0000-0x0000000000DB2000-memory.dmp

Filesize
72KB

Download
memory/4844-136-0x0000000000000000-mapping.dmp

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads