asyncrat | 79804cfea2659a8842450efceb06360b6cf5712d6e7685cb0244ab01d2ffd41b

General

Target

79804cfea2659a8842450efceb06360b6cf5712d6e7685cb0244ab01d2ffd41b.exe
Size

73KB
MD5

10482931f17f3be85f40317d11e58018
SHA1

34a80a5d490c6d0bdc78e8f391557ca08683bb51
SHA256

79804cfea2659a8842450efceb06360b6cf5712d6e7685cb0244ab01d2ffd41b
SHA512

32518611ed1ed3a627be57a6cf92b9fed5c5c955d39335c630cdbede72134ec601ac9ad075b1de3598a8ccc7f74a27b9bc2b8ad95093cf180e21225db8161263
SSDEEP

1536:5SS/pmHEC0fEG7MNViGozuJZOiEnJuNCIzZpZ:5RpPC0fEG7uiGoCJYi+Jcpzt

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

minecraftmods.myftp.biz:7119

Mutex

AsyncMutex_6SI8OkPnk

Attributes

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

aes.plain

Signatures

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

Async RAT payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1696-55-0x00000000002E0000-0x00000000002F2000-memory.dmp	asyncrat
behavioral1/memory/1764-66-0x0000000000270000-0x0000000000282000-memory.dmp	asyncrat

Executes dropped EXE 1 IoCs

Processes:

Server.exe

pid process

1764 Server.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

1884 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

2028 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1080 timeout.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

79804cfea2659a8842450efceb06360b6cf5712d6e7685cb0244ab01d2ffd41b.exe

pid process

1696 79804cfea2659a8842450efceb06360b6cf5712d6e7685cb0244ab01d2ffd41b.exe

pid	process
1764	Server.exe

pid	process
1884	cmd.exe

pid	process
2028	schtasks.exe

pid	process
1080	timeout.exe

pid	process
1696	79804cfea2659a8842450efceb06360b6cf5712d6e7685cb0244ab01d2ffd41b.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

79804cfea2659a8842450efceb06360b6cf5712d6e7685cb0244ab01d2ffd41b.exeServer.exe

description	pid	process
Token: SeDebugPrivilege	1696	79804cfea2659a8842450efceb06360b6cf5712d6e7685cb0244ab01d2ffd41b.exe
Token: SeDebugPrivilege	1764	Server.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

79804cfea2659a8842450efceb06360b6cf5712d6e7685cb0244ab01d2ffd41b.execmd.execmd.exe

description	pid	process	target process
PID 1696 wrote to memory of 1732	1696	79804cfea2659a8842450efceb06360b6cf5712d6e7685cb0244ab01d2ffd41b.exe	cmd.exe
PID 1696 wrote to memory of 1732	1696	79804cfea2659a8842450efceb06360b6cf5712d6e7685cb0244ab01d2ffd41b.exe	cmd.exe
PID 1696 wrote to memory of 1732	1696	79804cfea2659a8842450efceb06360b6cf5712d6e7685cb0244ab01d2ffd41b.exe	cmd.exe
PID 1696 wrote to memory of 1732	1696	79804cfea2659a8842450efceb06360b6cf5712d6e7685cb0244ab01d2ffd41b.exe	cmd.exe
PID 1696 wrote to memory of 1884	1696	79804cfea2659a8842450efceb06360b6cf5712d6e7685cb0244ab01d2ffd41b.exe	cmd.exe
PID 1696 wrote to memory of 1884	1696	79804cfea2659a8842450efceb06360b6cf5712d6e7685cb0244ab01d2ffd41b.exe	cmd.exe
PID 1696 wrote to memory of 1884	1696	79804cfea2659a8842450efceb06360b6cf5712d6e7685cb0244ab01d2ffd41b.exe	cmd.exe
PID 1696 wrote to memory of 1884	1696	79804cfea2659a8842450efceb06360b6cf5712d6e7685cb0244ab01d2ffd41b.exe	cmd.exe
PID 1732 wrote to memory of 2028	1732	cmd.exe	schtasks.exe
PID 1732 wrote to memory of 2028	1732	cmd.exe	schtasks.exe
PID 1732 wrote to memory of 2028	1732	cmd.exe	schtasks.exe
PID 1732 wrote to memory of 2028	1732	cmd.exe	schtasks.exe
PID 1884 wrote to memory of 1080	1884	cmd.exe	timeout.exe
PID 1884 wrote to memory of 1080	1884	cmd.exe	timeout.exe
PID 1884 wrote to memory of 1080	1884	cmd.exe	timeout.exe
PID 1884 wrote to memory of 1080	1884	cmd.exe	timeout.exe
PID 1884 wrote to memory of 1764	1884	cmd.exe	Server.exe
PID 1884 wrote to memory of 1764	1884	cmd.exe	Server.exe
PID 1884 wrote to memory of 1764	1884	cmd.exe	Server.exe
PID 1884 wrote to memory of 1764	1884	cmd.exe	Server.exe

C:\Users\Admin\AppData\Local\Temp\79804cfea2659a8842450efceb06360b6cf5712d6e7685cb0244ab01d2ffd41b.exe
"C:\Users\Admin\AppData\Local\Temp\79804cfea2659a8842450efceb06360b6cf5712d6e7685cb0244ab01d2ffd41b.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1696

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Server" /tr '"C:\Users\Admin\AppData\Roaming\Server.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:1732

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "Server" /tr '"C:\Users\Admin\AppData\Roaming\Server.exe"'
3⤵
- Creates scheduled task(s)
PID:2028

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp3812.tmp.bat""
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1884

C:\Windows\SysWOW64\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:1080

C:\Users\Admin\AppData\Roaming\Server.exe
"C:\Users\Admin\AppData\Roaming\Server.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1764

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp3812.tmp.bat
Filesize
150B

MD5
e3a6f07038fabbadc11cca835b060d91

SHA1
5845867efb7cd17cb72e72702eae55dc165a6a1b

SHA256
8109c1e187f5e5c99ee904904cafcf7c6ea901340e95bd7704344a3029ea23ec

SHA512
b07391d4d37ba028ca4080fa339ae983dca09ece078bd12badc692ccef572ddcbbbe1215cd208d0a71ef911a70126470fd39b5c44b61e4b9cd88ef589e04b1ee

Download Submit
C:\Users\Admin\AppData\Roaming\Server.exe
Filesize
73KB

MD5
10482931f17f3be85f40317d11e58018

SHA1
34a80a5d490c6d0bdc78e8f391557ca08683bb51

SHA256
79804cfea2659a8842450efceb06360b6cf5712d6e7685cb0244ab01d2ffd41b

SHA512
32518611ed1ed3a627be57a6cf92b9fed5c5c955d39335c630cdbede72134ec601ac9ad075b1de3598a8ccc7f74a27b9bc2b8ad95093cf180e21225db8161263

Download Submit
C:\Users\Admin\AppData\Roaming\Server.exe
Filesize
73KB

MD5
10482931f17f3be85f40317d11e58018

SHA1
34a80a5d490c6d0bdc78e8f391557ca08683bb51

SHA256
79804cfea2659a8842450efceb06360b6cf5712d6e7685cb0244ab01d2ffd41b

SHA512
32518611ed1ed3a627be57a6cf92b9fed5c5c955d39335c630cdbede72134ec601ac9ad075b1de3598a8ccc7f74a27b9bc2b8ad95093cf180e21225db8161263

Download Submit
\Users\Admin\AppData\Roaming\Server.exe
Filesize
73KB

MD5
10482931f17f3be85f40317d11e58018

SHA1
34a80a5d490c6d0bdc78e8f391557ca08683bb51

SHA256
79804cfea2659a8842450efceb06360b6cf5712d6e7685cb0244ab01d2ffd41b

SHA512
32518611ed1ed3a627be57a6cf92b9fed5c5c955d39335c630cdbede72134ec601ac9ad075b1de3598a8ccc7f74a27b9bc2b8ad95093cf180e21225db8161263

Download Submit
memory/1080-60-0x0000000000000000-mapping.dmp

Download
memory/1696-55-0x00000000002E0000-0x00000000002F2000-memory.dmp

Filesize
72KB

Download
memory/1696-54-0x0000000000F60000-0x0000000000F78000-memory.dmp

Filesize
96KB

Download
memory/1732-56-0x0000000000000000-mapping.dmp

Download
memory/1764-63-0x0000000000000000-mapping.dmp

Download
memory/1764-65-0x0000000000E80000-0x0000000000E98000-memory.dmp

Filesize
96KB

Download
memory/1764-66-0x0000000000270000-0x0000000000282000-memory.dmp

Filesize
72KB

Download
memory/1884-57-0x0000000000000000-mapping.dmp

Download
memory/2028-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads