asyncrat | 724b0ad46f22cbce63245e2e819e244e606e5081bd4cad054523a2c5fefd6cc3

General

Target

P.O#07072022.exe
Size

607KB
MD5

9b24112df18f585a70270a72b564125f
SHA1

e51d61eef365ba0095267e5806743625c2291baf
SHA256

724b0ad46f22cbce63245e2e819e244e606e5081bd4cad054523a2c5fefd6cc3
SHA512

1abb3a7a98df0b2a850f46d14de42e961da19699d68e06d1d0417b0695b71b9d0b790e25664c48451d2a52bc11a494c7e8b4b8da887d0e9f7cc8311a8f5c5d4a

Score

10^/10

asyncrat default rat suricata

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

vivald21.hopto.org:25256

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat
suricata: ET MALWARE Generic AsyncRAT Style SSL Cert
suricata: ET MALWARE Generic AsyncRAT Style SSL Cert
suricata
suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)
suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)
suricata

Async RAT payload 6 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/668-67-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/668-68-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/668-69-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/668-70-0x000000000040D05E-mapping.dmp	asyncrat
behavioral1/memory/668-72-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/668-74-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat

Suspicious use of SetThreadContext 1 IoCs

Processes:

P.O#07072022.exe

description pid process target process

PID 1600 set thread context of 668 1600 P.O#07072022.exe P.O#07072022.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

2012 schtasks.exe
Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

P.O#07072022.exepowershell.exe

pid process

1600 P.O#07072022.exe
1600 P.O#07072022.exe
1600 P.O#07072022.exe
1600 P.O#07072022.exe
1600 P.O#07072022.exe
1600 P.O#07072022.exe
1204 powershell.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

P.O#07072022.exepowershell.exeP.O#07072022.exe

description pid process

Token: SeDebugPrivilege 1600 P.O#07072022.exe
Token: SeDebugPrivilege 1204 powershell.exe
Token: SeDebugPrivilege 668 P.O#07072022.exe

description	pid	process	target process
PID 1600 set thread context of 668	1600	P.O#07072022.exe	P.O#07072022.exe

pid	process
2012	schtasks.exe

pid	process
1600	P.O#07072022.exe
1600	P.O#07072022.exe
1600	P.O#07072022.exe
1600	P.O#07072022.exe
1600	P.O#07072022.exe
1600	P.O#07072022.exe
1204	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1600	P.O#07072022.exe
Token: SeDebugPrivilege	1204	powershell.exe
Token: SeDebugPrivilege	668	P.O#07072022.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

P.O#07072022.exe

description	pid	process	target process
PID 1600 wrote to memory of 1204	1600	P.O#07072022.exe	powershell.exe
PID 1600 wrote to memory of 1204	1600	P.O#07072022.exe	powershell.exe
PID 1600 wrote to memory of 1204	1600	P.O#07072022.exe	powershell.exe
PID 1600 wrote to memory of 1204	1600	P.O#07072022.exe	powershell.exe
PID 1600 wrote to memory of 2012	1600	P.O#07072022.exe	schtasks.exe
PID 1600 wrote to memory of 2012	1600	P.O#07072022.exe	schtasks.exe
PID 1600 wrote to memory of 2012	1600	P.O#07072022.exe	schtasks.exe
PID 1600 wrote to memory of 2012	1600	P.O#07072022.exe	schtasks.exe
PID 1600 wrote to memory of 668	1600	P.O#07072022.exe	P.O#07072022.exe
PID 1600 wrote to memory of 668	1600	P.O#07072022.exe	P.O#07072022.exe
PID 1600 wrote to memory of 668	1600	P.O#07072022.exe	P.O#07072022.exe
PID 1600 wrote to memory of 668	1600	P.O#07072022.exe	P.O#07072022.exe
PID 1600 wrote to memory of 668	1600	P.O#07072022.exe	P.O#07072022.exe
PID 1600 wrote to memory of 668	1600	P.O#07072022.exe	P.O#07072022.exe
PID 1600 wrote to memory of 668	1600	P.O#07072022.exe	P.O#07072022.exe
PID 1600 wrote to memory of 668	1600	P.O#07072022.exe	P.O#07072022.exe
PID 1600 wrote to memory of 668	1600	P.O#07072022.exe	P.O#07072022.exe

C:\Users\Admin\AppData\Local\Temp\P.O#07072022.exe
"C:\Users\Admin\AppData\Local\Temp\P.O#07072022.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1600

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\sQtnenEXHD.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1204

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sQtnenEXHD" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEF30.tmp"
2⤵
- Creates scheduled task(s)
PID:2012

C:\Users\Admin\AppData\Local\Temp\P.O#07072022.exe
"C:\Users\Admin\AppData\Local\Temp\P.O#07072022.exe"
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:668

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpEF30.tmp
Filesize
1KB

MD5
b441ae6688380143fd4f578ef4f10f0e

SHA1
00ef978ca7463b92d6b166e69b63f4574a06b290

SHA256
01402df702394945ba395497190fd1e76e8802222ad2f4cc9af32c71862ed3e2

SHA512
5e2a4db09d0e2895083968d370f29f0e122da3ba9b59cb93145730141d96d2c23092d43455e8a6593ded91940c634928d0a0ba8399968d78fc461b3ac976cf7a

Download Submit
memory/668-67-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/668-74-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/668-72-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/668-70-0x000000000040D05E-mapping.dmp

Download
memory/668-69-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/668-68-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/668-64-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/668-65-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1204-75-0x000000006EA30000-0x000000006EFDB000-memory.dmp

Filesize
5.7MB

Download
memory/1204-59-0x0000000000000000-mapping.dmp

Download
memory/1600-58-0x0000000005190000-0x00000000051EC000-memory.dmp

Filesize
368KB

Download
memory/1600-63-0x0000000005240000-0x0000000005252000-memory.dmp

Filesize
72KB

Download
memory/1600-54-0x0000000000FB0000-0x000000000104E000-memory.dmp

Filesize
632KB

Download
memory/1600-57-0x0000000000AD0000-0x0000000000ADE000-memory.dmp

Filesize
56KB

Download
memory/1600-56-0x0000000000480000-0x00000000004A0000-memory.dmp

Filesize
128KB

Download
memory/1600-55-0x0000000075CD1000-0x0000000075CD3000-memory.dmp

Filesize
8KB

Download
memory/2012-60-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads