asyncrat | 43356bfd3875d34f14405392208bc7f3c6f71d7fea011ab9acf922acc8c589c5

General

Target

0x000a0000000122e5-58.exe
Size

45KB
MD5

9e320f6163f8d53462d45fbebc282c64
SHA1

b2e0a591204581e78f0ae85ff42a7ca02542e2ae
SHA256

43356bfd3875d34f14405392208bc7f3c6f71d7fea011ab9acf922acc8c589c5
SHA512

4c6d6a76f335d43b36866a0923ed8b6b685761ae61f3910b9c02df2fa60374fe3b6f53361e2d73ff3f5d0243e406aa337682d82c9f923dcf98f98345e727ad65
SSDEEP

768:7uYK9T3kH1jWUvmqRmo2qb0befKoClbPImzjbLgX3iqftcnWDGgjovSTBDZLx:7uYK9T34l2vyyoJm3b0XSqVDJjoS1dLx

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

fresh02.ddns.net:2245

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
true
install_file
logs.exe
install_folder
%AppData%

aes.plain

Signatures

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

Async RAT payload 5 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1128-54-0x0000000000390000-0x00000000003A2000-memory.dmp	asyncrat
\Users\Admin\AppData\Roaming\logs.exe	asyncrat
C:\Users\Admin\AppData\Roaming\logs.exe	asyncrat
C:\Users\Admin\AppData\Roaming\logs.exe	asyncrat
behavioral1/memory/1480-65-0x0000000000B20000-0x0000000000B32000-memory.dmp	asyncrat

Executes dropped EXE 1 IoCs

Processes:

logs.exe

pid process

1480 logs.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

1624 cmd.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

1584 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

692 timeout.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

0x000a0000000122e5-58.exe

pid process

1128 0x000a0000000122e5-58.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

0x000a0000000122e5-58.exelogs.exe

description pid process

Token: SeDebugPrivilege 1128 0x000a0000000122e5-58.exe
Token: SeDebugPrivilege 1480 logs.exe

pid	process
1480	logs.exe

pid	process
1624	cmd.exe

pid	process
1584	schtasks.exe

pid	process
692	timeout.exe

pid	process
1128	0x000a0000000122e5-58.exe

description	pid	process
Token: SeDebugPrivilege	1128	0x000a0000000122e5-58.exe
Token: SeDebugPrivilege	1480	logs.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

0x000a0000000122e5-58.execmd.execmd.exe

description	pid	process	target process
PID 1128 wrote to memory of 1292	1128	0x000a0000000122e5-58.exe	cmd.exe
PID 1128 wrote to memory of 1292	1128	0x000a0000000122e5-58.exe	cmd.exe
PID 1128 wrote to memory of 1292	1128	0x000a0000000122e5-58.exe	cmd.exe
PID 1128 wrote to memory of 1292	1128	0x000a0000000122e5-58.exe	cmd.exe
PID 1128 wrote to memory of 1624	1128	0x000a0000000122e5-58.exe	cmd.exe
PID 1128 wrote to memory of 1624	1128	0x000a0000000122e5-58.exe	cmd.exe
PID 1128 wrote to memory of 1624	1128	0x000a0000000122e5-58.exe	cmd.exe
PID 1128 wrote to memory of 1624	1128	0x000a0000000122e5-58.exe	cmd.exe
PID 1292 wrote to memory of 1584	1292	cmd.exe	schtasks.exe
PID 1292 wrote to memory of 1584	1292	cmd.exe	schtasks.exe
PID 1292 wrote to memory of 1584	1292	cmd.exe	schtasks.exe
PID 1292 wrote to memory of 1584	1292	cmd.exe	schtasks.exe
PID 1624 wrote to memory of 692	1624	cmd.exe	timeout.exe
PID 1624 wrote to memory of 692	1624	cmd.exe	timeout.exe
PID 1624 wrote to memory of 692	1624	cmd.exe	timeout.exe
PID 1624 wrote to memory of 692	1624	cmd.exe	timeout.exe
PID 1624 wrote to memory of 1480	1624	cmd.exe	logs.exe
PID 1624 wrote to memory of 1480	1624	cmd.exe	logs.exe
PID 1624 wrote to memory of 1480	1624	cmd.exe	logs.exe
PID 1624 wrote to memory of 1480	1624	cmd.exe	logs.exe

C:\Users\Admin\AppData\Local\Temp\0x000a0000000122e5-58.exe
"C:\Users\Admin\AppData\Local\Temp\0x000a0000000122e5-58.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1128

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "logs" /tr '"C:\Users\Admin\AppData\Roaming\logs.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:1292

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "logs" /tr '"C:\Users\Admin\AppData\Roaming\logs.exe"'
3⤵
- Creates scheduled task(s)
PID:1584

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpABB.tmp.bat""
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1624

C:\Windows\SysWOW64\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:692

C:\Users\Admin\AppData\Roaming\logs.exe
"C:\Users\Admin\AppData\Roaming\logs.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1480

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\tmpABB.tmp.bat
Filesize
147B

MD5
0fbcde04d394b62fa9e6c3263c35b2c8

SHA1
37bdc8fa6e01c35d35b357bd07a53555b926ba71

SHA256
6df94deaf600002676029c8858a98b36354f9a8ac67071f998477fdfe0f87a0e

SHA512
0c6579ae689f7cfbcb45e7222186a7d0bdf2a233cd30836345022a9c444bbed5ae114623b57535943c9eebeed148b01354c06b6a90adca0ac0eff1ccac22962b

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

MD5
9e320f6163f8d53462d45fbebc282c64

SHA1
b2e0a591204581e78f0ae85ff42a7ca02542e2ae

SHA256
43356bfd3875d34f14405392208bc7f3c6f71d7fea011ab9acf922acc8c589c5

SHA512
4c6d6a76f335d43b36866a0923ed8b6b685761ae61f3910b9c02df2fa60374fe3b6f53361e2d73ff3f5d0243e406aa337682d82c9f923dcf98f98345e727ad65

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

MD5
9e320f6163f8d53462d45fbebc282c64

SHA1
b2e0a591204581e78f0ae85ff42a7ca02542e2ae

SHA256
43356bfd3875d34f14405392208bc7f3c6f71d7fea011ab9acf922acc8c589c5

SHA512
4c6d6a76f335d43b36866a0923ed8b6b685761ae61f3910b9c02df2fa60374fe3b6f53361e2d73ff3f5d0243e406aa337682d82c9f923dcf98f98345e727ad65

Download Submit
\Users\Admin\AppData\Roaming\logs.exe
Filesize
45KB

MD5
9e320f6163f8d53462d45fbebc282c64

SHA1
b2e0a591204581e78f0ae85ff42a7ca02542e2ae

SHA256
43356bfd3875d34f14405392208bc7f3c6f71d7fea011ab9acf922acc8c589c5

SHA512
4c6d6a76f335d43b36866a0923ed8b6b685761ae61f3910b9c02df2fa60374fe3b6f53361e2d73ff3f5d0243e406aa337682d82c9f923dcf98f98345e727ad65

Download Submit
memory/692-60-0x0000000000000000-mapping.dmp

Download
memory/1128-54-0x0000000000390000-0x00000000003A2000-memory.dmp

Filesize
72KB

Download
memory/1128-55-0x0000000076961000-0x0000000076963000-memory.dmp

Filesize
8KB

Download
memory/1292-56-0x0000000000000000-mapping.dmp

Download
memory/1480-63-0x0000000000000000-mapping.dmp

Download
memory/1480-65-0x0000000000B20000-0x0000000000B32000-memory.dmp

Filesize
72KB

Download
memory/1584-59-0x0000000000000000-mapping.dmp

Download
memory/1624-57-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads