asyncrat | 5974ab14aa9e0a1adf11517f431a0fe46316fe37b70b91eb47dc219034ce7437

General

Target

107412ff8d9ab42fd1944db79d22b365.exe
Size

48KB
MD5

107412ff8d9ab42fd1944db79d22b365
SHA1

02f88a1a858d34aac3ebc58b1bea5b85d70c5fc6
SHA256

5974ab14aa9e0a1adf11517f431a0fe46316fe37b70b91eb47dc219034ce7437
SHA512

c740ee81535e2488d36f2fe2413a7995d2cbb35c08e486b70907994c002f1a15aabeb3b57646b3bfc667e950ef1616dd18edb4a775e09b213b071bb93b996524
SSDEEP

768:9eICljTILmCKi+DiBtelDSN+iV08Ybygeze1Acl5yMTvEgK/JP5Vc6KN:9eIYdmBtKDs4zb1Wcls0nkJP5VclN

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

C2

loader2b.duckdns.org:57913

Mutex

352y7t89soydgjsilhgb7805guiao

Attributes

delay
1
install
true
install_file
svchost.exe
install_folder
%AppData%

aes.plain

Signatures

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

Async RAT payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/2016-54-0x0000000000D80000-0x0000000000D92000-memory.dmp	asyncrat
C:\Users\Admin\AppData\Roaming\svchost.exe	asyncrat
C:\Users\Admin\AppData\Roaming\svchost.exe	asyncrat
behavioral1/memory/1128-63-0x0000000000270000-0x0000000000282000-memory.dmp	asyncrat

Executes dropped EXE 1 IoCs

Processes:

svchost.exe

pid process

1128 svchost.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

1712 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1572 timeout.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

107412ff8d9ab42fd1944db79d22b365.exe

pid process

2016 107412ff8d9ab42fd1944db79d22b365.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

107412ff8d9ab42fd1944db79d22b365.exesvchost.exe

description pid process

Token: SeDebugPrivilege 2016 107412ff8d9ab42fd1944db79d22b365.exe
Token: SeDebugPrivilege 1128 svchost.exe

pid	process
1128	svchost.exe

pid	process
1712	schtasks.exe

pid	process
1572	timeout.exe

pid	process
2016	107412ff8d9ab42fd1944db79d22b365.exe

description	pid	process
Token: SeDebugPrivilege	2016	107412ff8d9ab42fd1944db79d22b365.exe
Token: SeDebugPrivilege	1128	svchost.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

107412ff8d9ab42fd1944db79d22b365.execmd.execmd.exe

description	pid	process	target process
PID 2016 wrote to memory of 1716	2016	107412ff8d9ab42fd1944db79d22b365.exe	cmd.exe
PID 2016 wrote to memory of 1716	2016	107412ff8d9ab42fd1944db79d22b365.exe	cmd.exe
PID 2016 wrote to memory of 1716	2016	107412ff8d9ab42fd1944db79d22b365.exe	cmd.exe
PID 2016 wrote to memory of 1544	2016	107412ff8d9ab42fd1944db79d22b365.exe	cmd.exe
PID 2016 wrote to memory of 1544	2016	107412ff8d9ab42fd1944db79d22b365.exe	cmd.exe
PID 2016 wrote to memory of 1544	2016	107412ff8d9ab42fd1944db79d22b365.exe	cmd.exe
PID 1716 wrote to memory of 1712	1716	cmd.exe	schtasks.exe
PID 1716 wrote to memory of 1712	1716	cmd.exe	schtasks.exe
PID 1716 wrote to memory of 1712	1716	cmd.exe	schtasks.exe
PID 1544 wrote to memory of 1572	1544	cmd.exe	timeout.exe
PID 1544 wrote to memory of 1572	1544	cmd.exe	timeout.exe
PID 1544 wrote to memory of 1572	1544	cmd.exe	timeout.exe
PID 1544 wrote to memory of 1128	1544	cmd.exe	svchost.exe
PID 1544 wrote to memory of 1128	1544	cmd.exe	svchost.exe
PID 1544 wrote to memory of 1128	1544	cmd.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\107412ff8d9ab42fd1944db79d22b365.exe
"C:\Users\Admin\AppData\Local\Temp\107412ff8d9ab42fd1944db79d22b365.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2016

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:1716

C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
3⤵
- Creates scheduled task(s)
PID:1712

C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp5542.tmp.bat""
2⤵
- Suspicious use of WriteProcessMemory
PID:1544

C:\Windows\system32\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:1572

C:\Users\Admin\AppData\Roaming\svchost.exe
"C:\Users\Admin\AppData\Roaming\svchost.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1128

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\tmp5542.tmp.bat
Filesize
151B

MD5
2ed8200475f40bc76475c5a34be881f6

SHA1
c28abaf35f7442292c92c4bb6fec4c03a21dad87

SHA256
2571b9f04402412469b191c8db9fdb77338b10b94387eb2ac1940260494ef2d3

SHA512
0975419c4f1e70ba9978bd8057656316ba6543b89b2ddb40579bc0fdd60a0f19dd6b93e7ba6a7b93bd91e066f7b63cc3946a3956368b0bae3c1390010efc921f

Download Submit
C:\Users\Admin\AppData\Roaming\svchost.exe
Filesize
48KB

MD5
107412ff8d9ab42fd1944db79d22b365

SHA1
02f88a1a858d34aac3ebc58b1bea5b85d70c5fc6

SHA256
5974ab14aa9e0a1adf11517f431a0fe46316fe37b70b91eb47dc219034ce7437

SHA512
c740ee81535e2488d36f2fe2413a7995d2cbb35c08e486b70907994c002f1a15aabeb3b57646b3bfc667e950ef1616dd18edb4a775e09b213b071bb93b996524

Download Submit
C:\Users\Admin\AppData\Roaming\svchost.exe
Filesize
48KB

MD5
107412ff8d9ab42fd1944db79d22b365

SHA1
02f88a1a858d34aac3ebc58b1bea5b85d70c5fc6

SHA256
5974ab14aa9e0a1adf11517f431a0fe46316fe37b70b91eb47dc219034ce7437

SHA512
c740ee81535e2488d36f2fe2413a7995d2cbb35c08e486b70907994c002f1a15aabeb3b57646b3bfc667e950ef1616dd18edb4a775e09b213b071bb93b996524

Download Submit
memory/1128-60-0x0000000000000000-mapping.dmp

Download
memory/1128-63-0x0000000000270000-0x0000000000282000-memory.dmp

Filesize
72KB

Download
memory/1544-56-0x0000000000000000-mapping.dmp

Download
memory/1572-59-0x0000000000000000-mapping.dmp

Download
memory/1712-58-0x0000000000000000-mapping.dmp

Download
memory/1716-55-0x0000000000000000-mapping.dmp

Download
memory/2016-54-0x0000000000D80000-0x0000000000D92000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads