asyncrat | ceb08316d1560c7c4f5b6b8b8209b98230fe95480b3a3905d841b313d49216ca

General

Target

a085750ab9332bd2f0ad4b14ceba4c8f.exe
Size

47KB
MD5

a085750ab9332bd2f0ad4b14ceba4c8f
SHA1

ceb4652807226f27eb9556e2f2c9fd080aa341d8
SHA256

ceb08316d1560c7c4f5b6b8b8209b98230fe95480b3a3905d841b313d49216ca
SHA512

ad4daed223c00083e6dc0ecaeb2367a0e37d62a26a887be43a523aa6cfbd5e5ed8a740dee69c08b853abb85c9c53ecfa59d3cc2f8266d6a5addfbb5c2bb557f7
SSDEEP

768:Bu449TxAwVDWUPOvG6yxmo2qbNDwuNKKKlePIvmp40b+AQXaTPva2CznH3xBDZox:Bu449Tx72vGR2wEuuVu9b+AQarrC7Pda

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

127.0.0.1:51115

127.0.0.1:26993

185.246.220.26:6606

185.246.220.26:7707

185.246.220.26:8808

185.246.220.26:51115

185.246.220.26:26993

5.tcp.ngrok.io:6606

5.tcp.ngrok.io:7707

5.tcp.ngrok.io:8808

5.tcp.ngrok.io:51115

5.tcp.ngrok.io:26993

disownnet.duckdns.org:6606

disownnet.duckdns.org:7707

disownnet.duckdns.org:8808

disownnet.duckdns.org:51115

disownnet.duckdns.org:26993

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
true
install_file
services.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/4152-132-0x0000000000B80000-0x0000000000B92000-memory.dmp	asyncrat
C:\Users\Admin\AppData\Roaming\services.exe	asyncrat
C:\Users\Admin\AppData\Roaming\services.exe	asyncrat

Executes dropped EXE 1 IoCs

Processes:

services.exe

pid process

1132 services.exe

pid	process
1132	services.exe

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:

a085750ab9332bd2f0ad4b14ceba4c8f.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	a085750ab9332bd2f0ad4b14ceba4c8f.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

4752 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

3268 timeout.exe

pid	process
4752	schtasks.exe

pid	process
3268	timeout.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

a085750ab9332bd2f0ad4b14ceba4c8f.exe

pid	process
4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe
4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe
4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe
4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe
4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe
4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe
4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe
4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe
4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe
4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe
4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe
4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe
4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe
4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe
4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe
4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe
4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe
4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe
4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe
4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe
4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe
4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe
4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

a085750ab9332bd2f0ad4b14ceba4c8f.exeservices.exe

description pid process

Token: SeDebugPrivilege 4152 a085750ab9332bd2f0ad4b14ceba4c8f.exe
Token: SeDebugPrivilege 1132 services.exe

description	pid	process
Token: SeDebugPrivilege	4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe
Token: SeDebugPrivilege	1132	services.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

a085750ab9332bd2f0ad4b14ceba4c8f.execmd.execmd.exe

description	pid	process	target process
PID 4152 wrote to memory of 4392	4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe	cmd.exe
PID 4152 wrote to memory of 4392	4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe	cmd.exe
PID 4152 wrote to memory of 4392	4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe	cmd.exe
PID 4152 wrote to memory of 4108	4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe	cmd.exe
PID 4152 wrote to memory of 4108	4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe	cmd.exe
PID 4152 wrote to memory of 4108	4152	a085750ab9332bd2f0ad4b14ceba4c8f.exe	cmd.exe
PID 4108 wrote to memory of 3268	4108	cmd.exe	timeout.exe
PID 4108 wrote to memory of 3268	4108	cmd.exe	timeout.exe
PID 4108 wrote to memory of 3268	4108	cmd.exe	timeout.exe
PID 4392 wrote to memory of 4752	4392	cmd.exe	schtasks.exe
PID 4392 wrote to memory of 4752	4392	cmd.exe	schtasks.exe
PID 4392 wrote to memory of 4752	4392	cmd.exe	schtasks.exe
PID 4108 wrote to memory of 1132	4108	cmd.exe	services.exe
PID 4108 wrote to memory of 1132	4108	cmd.exe	services.exe
PID 4108 wrote to memory of 1132	4108	cmd.exe	services.exe

C:\Users\Admin\AppData\Local\Temp\a085750ab9332bd2f0ad4b14ceba4c8f.exe
"C:\Users\Admin\AppData\Local\Temp\a085750ab9332bd2f0ad4b14ceba4c8f.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4152

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "services" /tr '"C:\Users\Admin\AppData\Roaming\services.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:4392

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "services" /tr '"C:\Users\Admin\AppData\Roaming\services.exe"'
3⤵
- Creates scheduled task(s)
PID:4752

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp9791.tmp.bat""
2⤵
- Suspicious use of WriteProcessMemory
PID:4108

C:\Windows\SysWOW64\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:3268

C:\Users\Admin\AppData\Roaming\services.exe
"C:\Users\Admin\AppData\Roaming\services.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1132

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp9791.tmp.bat
Filesize
152B

MD5
f6fae4bd7eb6968f280befeb085efdee

SHA1
2fe4d62386e0ea6da3ec208576c6d38ae6a2ae02

SHA256
22c4f3b9b42218317c59ea53b7839f174c59ecf21beba251f9561cf6cc59f44d

SHA512
26875515fdb495d234b3c990025488f8e246470454459f52081461e81c6c2905dcee2f6bf5ad560dadae58b33094447d36a4441a48bda4b6f2425e422d3b3d0d

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

MD5
a085750ab9332bd2f0ad4b14ceba4c8f

SHA1
ceb4652807226f27eb9556e2f2c9fd080aa341d8

SHA256
ceb08316d1560c7c4f5b6b8b8209b98230fe95480b3a3905d841b313d49216ca

SHA512
ad4daed223c00083e6dc0ecaeb2367a0e37d62a26a887be43a523aa6cfbd5e5ed8a740dee69c08b853abb85c9c53ecfa59d3cc2f8266d6a5addfbb5c2bb557f7

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

MD5
a085750ab9332bd2f0ad4b14ceba4c8f

SHA1
ceb4652807226f27eb9556e2f2c9fd080aa341d8

SHA256
ceb08316d1560c7c4f5b6b8b8209b98230fe95480b3a3905d841b313d49216ca

SHA512
ad4daed223c00083e6dc0ecaeb2367a0e37d62a26a887be43a523aa6cfbd5e5ed8a740dee69c08b853abb85c9c53ecfa59d3cc2f8266d6a5addfbb5c2bb557f7

Download Submit
memory/1132-139-0x0000000000000000-mapping.dmp

Download
memory/3268-137-0x0000000000000000-mapping.dmp

Download
memory/4108-135-0x0000000000000000-mapping.dmp

Download
memory/4152-132-0x0000000000B80000-0x0000000000B92000-memory.dmp

Filesize
72KB

Download
memory/4152-133-0x0000000005650000-0x00000000056EC000-memory.dmp

Filesize
624KB

Download
memory/4392-134-0x0000000000000000-mapping.dmp

Download
memory/4752-138-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads