asyncrat | fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3

General

Target

fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe
Size

45KB
MD5

b379d5f8e60203f7ac58330baf412e41
SHA1

de08737859edb749490b33a2426011e169321684
SHA256

fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3
SHA512

984c4ae0bc27ad4423e92c9e4d9f0194ff0d84e613e42592977396878b78776358b773ddc40bfc5a7e9351f4f778c9f663fbca08fd8bf3cbc7e142ec2d44b0ed
SSDEEP

768:3ukzVT0kLd3WULgPdVmo2qD7KjGKG6PIyzjbFgX3i08Bobv+L4yboBDZzx:3ukzVT0Mq12KKYDy3bCXS1tSdzx

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

101.33.208.151:6606

101.33.208.151:7707

101.33.208.151:8808

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
true
install_file
window.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/5088-132-0x0000000000660000-0x0000000000672000-memory.dmp	asyncrat
C:\Users\Admin\AppData\Roaming\window.exe	asyncrat
C:\Users\Admin\AppData\Roaming\window.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:

fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe

Executes dropped EXE 1 IoCs

Processes:

window.exe

pid process

1816 window.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

2616 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

4452 timeout.exe

pid	process
1816	window.exe

pid	process
2616	schtasks.exe

pid	process
4452	timeout.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe

pid	process
5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe
5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe
5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe
5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe
5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe
5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe
5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe
5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe
5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe
5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe
5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe
5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe
5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe
5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe
5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe
5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe
5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe
5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe
5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe
5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe
5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe
5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe
5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exewindow.exe

description	pid	process
Token: SeDebugPrivilege	5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe
Token: SeDebugPrivilege	1816	window.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.execmd.execmd.exe

description	pid	process	target process
PID 5088 wrote to memory of 3432	5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe	cmd.exe
PID 5088 wrote to memory of 3432	5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe	cmd.exe
PID 5088 wrote to memory of 3432	5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe	cmd.exe
PID 5088 wrote to memory of 4128	5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe	cmd.exe
PID 5088 wrote to memory of 4128	5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe	cmd.exe
PID 5088 wrote to memory of 4128	5088	fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe	cmd.exe
PID 3432 wrote to memory of 2616	3432	cmd.exe	schtasks.exe
PID 3432 wrote to memory of 2616	3432	cmd.exe	schtasks.exe
PID 3432 wrote to memory of 2616	3432	cmd.exe	schtasks.exe
PID 4128 wrote to memory of 4452	4128	cmd.exe	timeout.exe
PID 4128 wrote to memory of 4452	4128	cmd.exe	timeout.exe
PID 4128 wrote to memory of 4452	4128	cmd.exe	timeout.exe
PID 4128 wrote to memory of 1816	4128	cmd.exe	window.exe
PID 4128 wrote to memory of 1816	4128	cmd.exe	window.exe
PID 4128 wrote to memory of 1816	4128	cmd.exe	window.exe

C:\Users\Admin\AppData\Local\Temp\fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe
"C:\Users\Admin\AppData\Local\Temp\fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5088

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "window" /tr '"C:\Users\Admin\AppData\Roaming\window.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:3432

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "window" /tr '"C:\Users\Admin\AppData\Roaming\window.exe"'
3⤵
- Creates scheduled task(s)
PID:2616

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp70FE.tmp.bat""
2⤵
- Suspicious use of WriteProcessMemory
PID:4128

C:\Windows\SysWOW64\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:4452

C:\Users\Admin\AppData\Roaming\window.exe
"C:\Users\Admin\AppData\Roaming\window.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1816

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\tmp70FE.tmp.bat
Filesize
150B

MD5
a612fd86a80b9a72eb1c04fc93604cbb

SHA1
9479a473a51b97d9e3014ce9ab7ece69320bc67d

SHA256
db4a472d9dac37e815ce110c59eb5f21ea5123364ef6aad5fc90246cb551cbdc

SHA512
5740e7c3cef7ec6c48d22d68601915698c7d04461e54c8ba8f3c901edb0557a35aebf0bfca367ea3508546f0ec9bd91fed3efb0172c28ca92c4bbafb25a4c7bc

Download Submit
C:\Users\Admin\AppData\Roaming\window.exe
Filesize
45KB

MD5
b379d5f8e60203f7ac58330baf412e41

SHA1
de08737859edb749490b33a2426011e169321684

SHA256
fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3

SHA512
984c4ae0bc27ad4423e92c9e4d9f0194ff0d84e613e42592977396878b78776358b773ddc40bfc5a7e9351f4f778c9f663fbca08fd8bf3cbc7e142ec2d44b0ed

Download Submit
C:\Users\Admin\AppData\Roaming\window.exe
Filesize
45KB

MD5
b379d5f8e60203f7ac58330baf412e41

SHA1
de08737859edb749490b33a2426011e169321684

SHA256
fe497cd48b3e42022fa45d7048b88d832c0ae76fad7dd0616170ac143bb731f3

SHA512
984c4ae0bc27ad4423e92c9e4d9f0194ff0d84e613e42592977396878b78776358b773ddc40bfc5a7e9351f4f778c9f663fbca08fd8bf3cbc7e142ec2d44b0ed

Download Submit
memory/1816-139-0x0000000000000000-mapping.dmp

Download
memory/2616-137-0x0000000000000000-mapping.dmp

Download
memory/3432-134-0x0000000000000000-mapping.dmp

Download
memory/4128-135-0x0000000000000000-mapping.dmp

Download
memory/4452-138-0x0000000000000000-mapping.dmp

Download
memory/5088-132-0x0000000000660000-0x0000000000672000-memory.dmp

Filesize
72KB

Download
memory/5088-133-0x0000000005300000-0x000000000539C000-memory.dmp

Filesize
624KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads