asyncrat | 44c06ff9482b8356d33690f94f56cf6ea29e2ff0f167c11a49594d542412f16b

General

Target

44c06ff9482b8356d33690f94f56cf6ea29e2ff0f167c11a49594d542412f16b.exe
Size

1008KB
MD5

e545f0dcbd848ce0e1594b9efe51b572
SHA1

7518a03d5a85c4a919dfb89a85af5f9e5fdf7713
SHA256

44c06ff9482b8356d33690f94f56cf6ea29e2ff0f167c11a49594d542412f16b
SHA512

8cd58be448e211723a13027ff6fea7a1b28cc7b603627c973022277c36642639aaf3e8b0d865a292b09b6c071375d580e94ccaa29b8f545aca22e0a3568ee333

Score

10^/10

asyncrat evasion rat trojan

Malware Config

Signatures

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

Windows security bypass 2 TTPs 2 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

44c06ff9482b8356d33690f94f56cf6ea29e2ff0f167c11a49594d542412f16b.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths	44c06ff9482b8356d33690f94f56cf6ea29e2ff0f167c11a49594d542412f16b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\44c06ff9482b8356d33690f94f56cf6ea29e2ff0f167c11a49594d542412f16b.exe = "0"	44c06ff9482b8356d33690f94f56cf6ea29e2ff0f167c11a49594d542412f16b.exe

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4660-143-0x0000000000400000-0x0000000000412000-memory.dmp	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:

44c06ff9482b8356d33690f94f56cf6ea29e2ff0f167c11a49594d542412f16b.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	44c06ff9482b8356d33690f94f56cf6ea29e2ff0f167c11a49594d542412f16b.exe

Windows security modification 2 TTPs 3 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

44c06ff9482b8356d33690f94f56cf6ea29e2ff0f167c11a49594d542412f16b.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths	44c06ff9482b8356d33690f94f56cf6ea29e2ff0f167c11a49594d542412f16b.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions	44c06ff9482b8356d33690f94f56cf6ea29e2ff0f167c11a49594d542412f16b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\44c06ff9482b8356d33690f94f56cf6ea29e2ff0f167c11a49594d542412f16b.exe = "0"	44c06ff9482b8356d33690f94f56cf6ea29e2ff0f167c11a49594d542412f16b.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4204 4024 WerFault.exe 44c06ff9482b8356d33690f94f56cf6ea29e2ff0f167c11a49594d542412f16b.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

4292 powershell.exe

pid	pid_target	process	target process
4204	4024	WerFault.exe	44c06ff9482b8356d33690f94f56cf6ea29e2ff0f167c11a49594d542412f16b.exe

pid	process
4292	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

44c06ff9482b8356d33690f94f56cf6ea29e2ff0f167c11a49594d542412f16b.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	4024	44c06ff9482b8356d33690f94f56cf6ea29e2ff0f167c11a49594d542412f16b.exe
Token: SeDebugPrivilege	4292	powershell.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

44c06ff9482b8356d33690f94f56cf6ea29e2ff0f167c11a49594d542412f16b.exe

description	pid	process	target process
PID 4024 wrote to memory of 4292	4024	44c06ff9482b8356d33690f94f56cf6ea29e2ff0f167c11a49594d542412f16b.exe	powershell.exe
PID 4024 wrote to memory of 4292	4024	44c06ff9482b8356d33690f94f56cf6ea29e2ff0f167c11a49594d542412f16b.exe	powershell.exe
PID 4024 wrote to memory of 4292	4024	44c06ff9482b8356d33690f94f56cf6ea29e2ff0f167c11a49594d542412f16b.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\44c06ff9482b8356d33690f94f56cf6ea29e2ff0f167c11a49594d542412f16b.exe
"C:\Users\Admin\AppData\Local\Temp\44c06ff9482b8356d33690f94f56cf6ea29e2ff0f167c11a49594d542412f16b.exe"
1⤵
- Windows security bypass
- Checks computer location settings
- Windows security modification
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4024

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\44c06ff9482b8356d33690f94f56cf6ea29e2ff0f167c11a49594d542412f16b.exe" -Force
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4292

C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe"
2⤵
PID:4660

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4024 -s 2220
2⤵
- Program crash
PID:4204

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4024 -ip 4024
1⤵
PID:4172

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Disabling Security Tools

2

T1089

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1

T1102

Impact

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Downloads

memory/4024-130-0x0000000000AC0000-0x0000000000BC0000-memory.dmp

Filesize
1024KB

Download
memory/4024-131-0x00000000053B0000-0x000000000544C000-memory.dmp

Filesize
624KB

Download
memory/4024-132-0x0000000005B00000-0x00000000060A4000-memory.dmp

Filesize
5.6MB

Download
memory/4024-133-0x0000000005600000-0x0000000005692000-memory.dmp

Filesize
584KB

Download
memory/4024-134-0x00000000055E0000-0x00000000055EA000-memory.dmp

Filesize
40KB

Download
memory/4292-148-0x0000000006DA0000-0x0000000006DBA000-memory.dmp

Filesize
104KB

Download
memory/4292-144-0x0000000004930000-0x0000000004962000-memory.dmp

Filesize
200KB

Download
memory/4292-137-0x0000000004DD0000-0x00000000053F8000-memory.dmp

Filesize
6.2MB

Download
memory/4292-138-0x0000000004C20000-0x0000000004C42000-memory.dmp

Filesize
136KB

Download
memory/4292-139-0x0000000005470000-0x00000000054D6000-memory.dmp

Filesize
408KB

Download
memory/4292-140-0x0000000005590000-0x00000000055F6000-memory.dmp

Filesize
408KB

Download
memory/4292-141-0x0000000005BB0000-0x0000000005BCE000-memory.dmp

Filesize
120KB

Download
memory/4292-153-0x00000000071F0000-0x00000000071F8000-memory.dmp

Filesize
32KB

Download
memory/4292-152-0x0000000007200000-0x000000000721A000-memory.dmp

Filesize
104KB

Download
memory/4292-136-0x00000000045E0000-0x0000000004616000-memory.dmp

Filesize
216KB

Download
memory/4292-145-0x000000006F860000-0x000000006F8AC000-memory.dmp

Filesize
304KB

Download
memory/4292-146-0x0000000004910000-0x000000000492E000-memory.dmp

Filesize
120KB

Download
memory/4292-147-0x0000000007550000-0x0000000007BCA000-memory.dmp

Filesize
6.5MB

Download
memory/4292-135-0x0000000000000000-mapping.dmp

Download
memory/4292-149-0x0000000006F40000-0x0000000006F4A000-memory.dmp

Filesize
40KB

Download
memory/4292-150-0x0000000007140000-0x00000000071D6000-memory.dmp

Filesize
600KB

Download
memory/4292-151-0x0000000007110000-0x000000000711E000-memory.dmp

Filesize
56KB

Download
memory/4660-143-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4660-142-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads