asyncrat | 15d3ee4efbe7c1ebc998c69f2d6902fb26387c83dc49e41f54c2946c420120c1

General

Target

7f2717a61bf9954670ea7c947815816e.exe
Size

58KB
MD5

7f2717a61bf9954670ea7c947815816e
SHA1

7bf30b1291d800c583ac863856da257eaeecd531
SHA256

15d3ee4efbe7c1ebc998c69f2d6902fb26387c83dc49e41f54c2946c420120c1
SHA512

c5f652863f10c895c212bb2dbaa1b798f01db6344e99f70519590f67f8fc5d5ea760e9ba26b83bc256159d979364c8ec7a02db53ef42736e4756e987b0f5b829
SSDEEP

1536:4uyRNTAGo2W93pXGyb9Z5dqPPnHbJdRaMb:4uy/TAGo2U3pXGyb9ZiPvHbJjaMb

Score

10^/10

asyncrat spoofer rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Spoofer

C2

90.49.136.9:8080

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
true
install_file
AnyDesk.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/3460-132-0x0000000000B30000-0x0000000000B44000-memory.dmp	asyncrat
C:\Users\Admin\AppData\Roaming\AnyDesk.exe	asyncrat
C:\Users\Admin\AppData\Roaming\AnyDesk.exe	asyncrat

Executes dropped EXE 1 IoCs

Processes:

AnyDesk.exe

pid process

1932 AnyDesk.exe

pid	process
1932	AnyDesk.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:

7f2717a61bf9954670ea7c947815816e.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	7f2717a61bf9954670ea7c947815816e.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

4276 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1324 timeout.exe

pid	process
4276	schtasks.exe

pid	process
1324	timeout.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

7f2717a61bf9954670ea7c947815816e.exe

pid	process
3460	7f2717a61bf9954670ea7c947815816e.exe
3460	7f2717a61bf9954670ea7c947815816e.exe
3460	7f2717a61bf9954670ea7c947815816e.exe
3460	7f2717a61bf9954670ea7c947815816e.exe
3460	7f2717a61bf9954670ea7c947815816e.exe
3460	7f2717a61bf9954670ea7c947815816e.exe
3460	7f2717a61bf9954670ea7c947815816e.exe
3460	7f2717a61bf9954670ea7c947815816e.exe
3460	7f2717a61bf9954670ea7c947815816e.exe
3460	7f2717a61bf9954670ea7c947815816e.exe
3460	7f2717a61bf9954670ea7c947815816e.exe
3460	7f2717a61bf9954670ea7c947815816e.exe
3460	7f2717a61bf9954670ea7c947815816e.exe
3460	7f2717a61bf9954670ea7c947815816e.exe
3460	7f2717a61bf9954670ea7c947815816e.exe
3460	7f2717a61bf9954670ea7c947815816e.exe
3460	7f2717a61bf9954670ea7c947815816e.exe
3460	7f2717a61bf9954670ea7c947815816e.exe
3460	7f2717a61bf9954670ea7c947815816e.exe
3460	7f2717a61bf9954670ea7c947815816e.exe
3460	7f2717a61bf9954670ea7c947815816e.exe
3460	7f2717a61bf9954670ea7c947815816e.exe
3460	7f2717a61bf9954670ea7c947815816e.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

7f2717a61bf9954670ea7c947815816e.exeAnyDesk.exe

description	pid	process
Token: SeDebugPrivilege	3460	7f2717a61bf9954670ea7c947815816e.exe
Token: SeDebugPrivilege	1932	AnyDesk.exe
Token: SeDebugPrivilege	1932	AnyDesk.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

7f2717a61bf9954670ea7c947815816e.execmd.execmd.exe

description	pid	process	target process
PID 3460 wrote to memory of 5028	3460	7f2717a61bf9954670ea7c947815816e.exe	cmd.exe
PID 3460 wrote to memory of 5028	3460	7f2717a61bf9954670ea7c947815816e.exe	cmd.exe
PID 3460 wrote to memory of 5028	3460	7f2717a61bf9954670ea7c947815816e.exe	cmd.exe
PID 3460 wrote to memory of 5068	3460	7f2717a61bf9954670ea7c947815816e.exe	cmd.exe
PID 3460 wrote to memory of 5068	3460	7f2717a61bf9954670ea7c947815816e.exe	cmd.exe
PID 3460 wrote to memory of 5068	3460	7f2717a61bf9954670ea7c947815816e.exe	cmd.exe
PID 5068 wrote to memory of 1324	5068	cmd.exe	timeout.exe
PID 5068 wrote to memory of 1324	5068	cmd.exe	timeout.exe
PID 5068 wrote to memory of 1324	5068	cmd.exe	timeout.exe
PID 5028 wrote to memory of 4276	5028	cmd.exe	schtasks.exe
PID 5028 wrote to memory of 4276	5028	cmd.exe	schtasks.exe
PID 5028 wrote to memory of 4276	5028	cmd.exe	schtasks.exe
PID 5068 wrote to memory of 1932	5068	cmd.exe	AnyDesk.exe
PID 5068 wrote to memory of 1932	5068	cmd.exe	AnyDesk.exe
PID 5068 wrote to memory of 1932	5068	cmd.exe	AnyDesk.exe

C:\Users\Admin\AppData\Local\Temp\7f2717a61bf9954670ea7c947815816e.exe
"C:\Users\Admin\AppData\Local\Temp\7f2717a61bf9954670ea7c947815816e.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3460

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "AnyDesk" /tr '"C:\Users\Admin\AppData\Roaming\AnyDesk.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:5028

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "AnyDesk" /tr '"C:\Users\Admin\AppData\Roaming\AnyDesk.exe"'
3⤵
- Creates scheduled task(s)
PID:4276

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpD323.tmp.bat""
2⤵
- Suspicious use of WriteProcessMemory
PID:5068

C:\Windows\SysWOW64\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:1324

C:\Users\Admin\AppData\Roaming\AnyDesk.exe
"C:\Users\Admin\AppData\Roaming\AnyDesk.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1932

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\tmpD323.tmp.bat
Filesize
151B

MD5
824db48cf584711a7f63aacfdb0d4370

SHA1
464ad57243e7284446ffd1f74c4854d8d1e38eb4

SHA256
42aa2140042d795db5cce07dff4da32a273407d0599913a90f7dd9032870e665

SHA512
979be17c0f7c73bfb0ffe6c861d00f518216d3768cdc09256b8d18c1fd7844f99fdab7c7cb8b0a707a0b33ec8eaaf52711aa4726cadad2a75e8f5bf5b325d436

Download Submit
C:\Users\Admin\AppData\Roaming\AnyDesk.exe
Filesize
58KB

MD5
7f2717a61bf9954670ea7c947815816e

SHA1
7bf30b1291d800c583ac863856da257eaeecd531

SHA256
15d3ee4efbe7c1ebc998c69f2d6902fb26387c83dc49e41f54c2946c420120c1

SHA512
c5f652863f10c895c212bb2dbaa1b798f01db6344e99f70519590f67f8fc5d5ea760e9ba26b83bc256159d979364c8ec7a02db53ef42736e4756e987b0f5b829

Download Submit
C:\Users\Admin\AppData\Roaming\AnyDesk.exe
Filesize
58KB

MD5
7f2717a61bf9954670ea7c947815816e

SHA1
7bf30b1291d800c583ac863856da257eaeecd531

SHA256
15d3ee4efbe7c1ebc998c69f2d6902fb26387c83dc49e41f54c2946c420120c1

SHA512
c5f652863f10c895c212bb2dbaa1b798f01db6344e99f70519590f67f8fc5d5ea760e9ba26b83bc256159d979364c8ec7a02db53ef42736e4756e987b0f5b829

Download Submit
memory/1324-138-0x0000000000000000-mapping.dmp

Download
memory/1932-140-0x0000000000000000-mapping.dmp

Download
memory/3460-132-0x0000000000B30000-0x0000000000B44000-memory.dmp

Filesize
80KB

Download
memory/3460-133-0x00000000057E0000-0x0000000005846000-memory.dmp

Filesize
408KB

Download
memory/3460-134-0x0000000005C30000-0x0000000005CCC000-memory.dmp

Filesize
624KB

Download
memory/4276-139-0x0000000000000000-mapping.dmp

Download
memory/5028-135-0x0000000000000000-mapping.dmp

Download
memory/5068-136-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads