asyncrat | c759cde09cf057c2430ceb74bd7f15427d2ad27f0b77dcc8630c8a148486cf27

General

Target

Discord.exe
Size

45KB
MD5

05b54deb0e3e6a3fb9155a14642b50ba
SHA1

77bf6744502a5946861baf104c1cf4babc171b9c
SHA256

c759cde09cf057c2430ceb74bd7f15427d2ad27f0b77dcc8630c8a148486cf27
SHA512

3668e77850acfb0c42f1d15de08fcd737f0c6d7087f25f6404b1f378aea94ca34ab0d85f2bea1c8a9d11692a039d0fa42aeec4876bb802ae2c192608e5bc5a9b
SSDEEP

768:6uKQ9TH4EjZWUR/ejmo2qrYKjPGaG6PIyzjbFgX3i6cpxs298YBDZTx:6uKQ9THfe2BKTkDy3bCXSpF9LdTx

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

18.ip.gl.ply.gg:6606

18.ip.gl.ply.gg:7707

18.ip.gl.ply.gg:8808

18.ip.gl.ply.gg:9028

Mutex

lmk8StbxTzvz

Attributes

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

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Asyncrat family
asyncrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/files/0x0009000000012255-13.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2752	Discord.exe

Loads dropped DLL 1 IoCs

pid	Process
2976	cmd.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Discord.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Discord.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2732	timeout.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2852	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1820	Discord.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1820	Discord.exe
Token: SeDebugPrivilege	2752	Discord.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1820 wrote to memory of 2836	1820	Discord.exe	29
PID 1820 wrote to memory of 2836	1820	Discord.exe	29
PID 1820 wrote to memory of 2836	1820	Discord.exe	29
PID 1820 wrote to memory of 2836	1820	Discord.exe	29
PID 1820 wrote to memory of 2976	1820	Discord.exe	31
PID 1820 wrote to memory of 2976	1820	Discord.exe	31
PID 1820 wrote to memory of 2976	1820	Discord.exe	31
PID 1820 wrote to memory of 2976	1820	Discord.exe	31
PID 2836 wrote to memory of 2852	2836	cmd.exe	33
PID 2836 wrote to memory of 2852	2836	cmd.exe	33
PID 2836 wrote to memory of 2852	2836	cmd.exe	33
PID 2836 wrote to memory of 2852	2836	cmd.exe	33
PID 2976 wrote to memory of 2732	2976	cmd.exe	34
PID 2976 wrote to memory of 2732	2976	cmd.exe	34
PID 2976 wrote to memory of 2732	2976	cmd.exe	34
PID 2976 wrote to memory of 2732	2976	cmd.exe	34
PID 2976 wrote to memory of 2752	2976	cmd.exe	35
PID 2976 wrote to memory of 2752	2976	cmd.exe	35
PID 2976 wrote to memory of 2752	2976	cmd.exe	35
PID 2976 wrote to memory of 2752	2976	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\Discord.exe
"C:\Users\Admin\AppData\Local\Temp\Discord.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1820
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Discord" /tr '"C:\Users\Admin\AppData\Roaming\Discord.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2836
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "Discord" /tr '"C:\Users\Admin\AppData\Roaming\Discord.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2852
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp290.tmp.bat""
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2976
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2732
- - C:\Users\Admin\AppData\Roaming\Discord.exe
    "C:\Users\Admin\AppData\Roaming\Discord.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2752

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp290.tmp.bat

Filesize
150B

MD5
717b96c6f0432d666a3d41b34a6684e1

SHA1
35f554c1dc5c0298767bfb91279c93ee736a38ca

SHA256
6e14b9853fc4ec2aad9ec381d53a16eb23b262492a2a5e416c092db8f5bec5eb

SHA512
b01f793493143e2c661edc7937dcdd3e70cd170f2beae4566b4839e8a0f4e7bf4cf45918aa8d5ba8a58e0011b24e5765a69366fb74ad72a1cddddaf052eca1f7

Download Submit
\Users\Admin\AppData\Roaming\Discord.exe

Filesize
45KB

MD5
05b54deb0e3e6a3fb9155a14642b50ba

SHA1
77bf6744502a5946861baf104c1cf4babc171b9c

SHA256
c759cde09cf057c2430ceb74bd7f15427d2ad27f0b77dcc8630c8a148486cf27

SHA512
3668e77850acfb0c42f1d15de08fcd737f0c6d7087f25f6404b1f378aea94ca34ab0d85f2bea1c8a9d11692a039d0fa42aeec4876bb802ae2c192608e5bc5a9b

Download Submit
memory/1820-0-0x00000000748BE000-0x00000000748BF000-memory.dmp

Filesize
4KB

Download
memory/1820-1-0x0000000000210000-0x0000000000222000-memory.dmp

Filesize
72KB

Download
memory/1820-2-0x00000000748B0000-0x0000000074F9E000-memory.dmp

Filesize
6.9MB

Download
memory/1820-12-0x00000000748B0000-0x0000000074F9E000-memory.dmp

Filesize
6.9MB

Download
memory/2752-16-0x0000000000870000-0x0000000000882000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads