asyncrat | 45e87ee0b025a7e4a783a6786564982e7735c8c50d0b3d84a3d5dd90ce735cfe

General

Target

10135b39a4a6d8717ba8ceec380ef060.exe
Size

48KB
MD5

10135b39a4a6d8717ba8ceec380ef060
SHA1

3669c101670b0b373dea1c7729718340196da4bc
SHA256

45e87ee0b025a7e4a783a6786564982e7735c8c50d0b3d84a3d5dd90ce735cfe
SHA512

71cc73fbb213529a14fb94c56f1a056ae5db940a7aac22079ae9a238a9633ddd64b7d8ff9b3a023051c9d6cfbbed48e90f14f2e17a2f6893ae9b3b6f46dd31ee

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

61.14.233.88:6606

61.14.233.88:7707

61.14.233.88:8808

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
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 5 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1984-54-0x0000000000850000-0x0000000000862000-memory.dmp	asyncrat
\Users\Admin\AppData\Roaming\svchost.exe	asyncrat
C:\Users\Admin\AppData\Roaming\svchost.exe	asyncrat
C:\Users\Admin\AppData\Roaming\svchost.exe	asyncrat
behavioral1/memory/808-65-0x0000000000820000-0x0000000000832000-memory.dmp	asyncrat

Executes dropped EXE 1 IoCs

Processes:

svchost.exe

pid process

808 svchost.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

968 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

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

Processes:

timeout.exe

pid process

240 timeout.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

10135b39a4a6d8717ba8ceec380ef060.exe

pid process

1984 10135b39a4a6d8717ba8ceec380ef060.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

10135b39a4a6d8717ba8ceec380ef060.exesvchost.exe

description pid process

Token: SeDebugPrivilege 1984 10135b39a4a6d8717ba8ceec380ef060.exe
Token: SeDebugPrivilege 808 svchost.exe

pid	process
808	svchost.exe

pid	process
968	cmd.exe

pid	process
900	schtasks.exe

pid	process
240	timeout.exe

pid	process
1984	10135b39a4a6d8717ba8ceec380ef060.exe

description	pid	process
Token: SeDebugPrivilege	1984	10135b39a4a6d8717ba8ceec380ef060.exe
Token: SeDebugPrivilege	808	svchost.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

10135b39a4a6d8717ba8ceec380ef060.execmd.execmd.exe

description	pid	process	target process
PID 1984 wrote to memory of 608	1984	10135b39a4a6d8717ba8ceec380ef060.exe	cmd.exe
PID 1984 wrote to memory of 608	1984	10135b39a4a6d8717ba8ceec380ef060.exe	cmd.exe
PID 1984 wrote to memory of 608	1984	10135b39a4a6d8717ba8ceec380ef060.exe	cmd.exe
PID 1984 wrote to memory of 608	1984	10135b39a4a6d8717ba8ceec380ef060.exe	cmd.exe
PID 1984 wrote to memory of 968	1984	10135b39a4a6d8717ba8ceec380ef060.exe	cmd.exe
PID 1984 wrote to memory of 968	1984	10135b39a4a6d8717ba8ceec380ef060.exe	cmd.exe
PID 1984 wrote to memory of 968	1984	10135b39a4a6d8717ba8ceec380ef060.exe	cmd.exe
PID 1984 wrote to memory of 968	1984	10135b39a4a6d8717ba8ceec380ef060.exe	cmd.exe
PID 608 wrote to memory of 900	608	cmd.exe	schtasks.exe
PID 608 wrote to memory of 900	608	cmd.exe	schtasks.exe
PID 608 wrote to memory of 900	608	cmd.exe	schtasks.exe
PID 608 wrote to memory of 900	608	cmd.exe	schtasks.exe
PID 968 wrote to memory of 240	968	cmd.exe	timeout.exe
PID 968 wrote to memory of 240	968	cmd.exe	timeout.exe
PID 968 wrote to memory of 240	968	cmd.exe	timeout.exe
PID 968 wrote to memory of 240	968	cmd.exe	timeout.exe
PID 968 wrote to memory of 808	968	cmd.exe	svchost.exe
PID 968 wrote to memory of 808	968	cmd.exe	svchost.exe
PID 968 wrote to memory of 808	968	cmd.exe	svchost.exe
PID 968 wrote to memory of 808	968	cmd.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\10135b39a4a6d8717ba8ceec380ef060.exe
"C:\Users\Admin\AppData\Local\Temp\10135b39a4a6d8717ba8ceec380ef060.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1984

C:\Windows\SysWOW64\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:608

C:\Windows\SysWOW64\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:900

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp8621.tmp.bat""
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:968

C:\Windows\SysWOW64\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:240

C:\Users\Admin\AppData\Roaming\svchost.exe
"C:\Users\Admin\AppData\Roaming\svchost.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:808

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\tmp8621.tmp.bat
Filesize
151B

MD5
2d22383f3d35fcf3095b3d6828f118a7

SHA1
1f61acd3457c9a1929183582b04e5c9ce0a41f75

SHA256
4fa3d6d65b54bd15c08a8a557dd44e927c7041a361ea03cbcc7b6dc27ef8807b

SHA512
9c36453551ae300d41846be9117535389f74132a97612acb063e98a1895be85955954a191e795d90ee57d946145ea04dcbe51900de731d1c5fa2299d45bcc1dc

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

MD5
10135b39a4a6d8717ba8ceec380ef060

SHA1
3669c101670b0b373dea1c7729718340196da4bc

SHA256
45e87ee0b025a7e4a783a6786564982e7735c8c50d0b3d84a3d5dd90ce735cfe

SHA512
71cc73fbb213529a14fb94c56f1a056ae5db940a7aac22079ae9a238a9633ddd64b7d8ff9b3a023051c9d6cfbbed48e90f14f2e17a2f6893ae9b3b6f46dd31ee

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

MD5
10135b39a4a6d8717ba8ceec380ef060

SHA1
3669c101670b0b373dea1c7729718340196da4bc

SHA256
45e87ee0b025a7e4a783a6786564982e7735c8c50d0b3d84a3d5dd90ce735cfe

SHA512
71cc73fbb213529a14fb94c56f1a056ae5db940a7aac22079ae9a238a9633ddd64b7d8ff9b3a023051c9d6cfbbed48e90f14f2e17a2f6893ae9b3b6f46dd31ee

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

MD5
10135b39a4a6d8717ba8ceec380ef060

SHA1
3669c101670b0b373dea1c7729718340196da4bc

SHA256
45e87ee0b025a7e4a783a6786564982e7735c8c50d0b3d84a3d5dd90ce735cfe

SHA512
71cc73fbb213529a14fb94c56f1a056ae5db940a7aac22079ae9a238a9633ddd64b7d8ff9b3a023051c9d6cfbbed48e90f14f2e17a2f6893ae9b3b6f46dd31ee

Download Submit
memory/240-60-0x0000000000000000-mapping.dmp

Download
memory/608-56-0x0000000000000000-mapping.dmp

Download
memory/808-63-0x0000000000000000-mapping.dmp

Download
memory/808-65-0x0000000000820000-0x0000000000832000-memory.dmp

Filesize
72KB

Download
memory/900-59-0x0000000000000000-mapping.dmp

Download
memory/968-57-0x0000000000000000-mapping.dmp

Download
memory/1984-54-0x0000000000850000-0x0000000000862000-memory.dmp

Filesize
72KB

Download
memory/1984-55-0x0000000076261000-0x0000000076263000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads