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/0x00090000000120fb-13.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2788	Discord.exe

Loads dropped DLL 1 IoCs

pid	Process
1060	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2700	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
1920	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2960	Discord.exe
2960	Discord.exe
2960	Discord.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2960	Discord.exe
Token: SeDebugPrivilege	2788	Discord.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2960 wrote to memory of 1716	2960	Discord.exe	30
PID 2960 wrote to memory of 1716	2960	Discord.exe	30
PID 2960 wrote to memory of 1716	2960	Discord.exe	30
PID 2960 wrote to memory of 1716	2960	Discord.exe	30
PID 2960 wrote to memory of 1060	2960	Discord.exe	32
PID 2960 wrote to memory of 1060	2960	Discord.exe	32
PID 2960 wrote to memory of 1060	2960	Discord.exe	32
PID 2960 wrote to memory of 1060	2960	Discord.exe	32
PID 1716 wrote to memory of 1920	1716	cmd.exe	34
PID 1716 wrote to memory of 1920	1716	cmd.exe	34
PID 1716 wrote to memory of 1920	1716	cmd.exe	34
PID 1716 wrote to memory of 1920	1716	cmd.exe	34
PID 1060 wrote to memory of 2700	1060	cmd.exe	35
PID 1060 wrote to memory of 2700	1060	cmd.exe	35
PID 1060 wrote to memory of 2700	1060	cmd.exe	35
PID 1060 wrote to memory of 2700	1060	cmd.exe	35
PID 1060 wrote to memory of 2788	1060	cmd.exe	36
PID 1060 wrote to memory of 2788	1060	cmd.exe	36
PID 1060 wrote to memory of 2788	1060	cmd.exe	36
PID 1060 wrote to memory of 2788	1060	cmd.exe	36

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:2960
- 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:1716
- - 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:1920
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpAAA1.tmp.bat""
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1060
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2700
- - 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:2788

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\tmpAAA1.tmp.bat

Filesize
151B

MD5
53c492731bc7f6b773d111f93a52ecb1

SHA1
60bdcea382967e176a77bf5d729ee8fe54596e2b

SHA256
e385567bbec436693d2c51f75221c79d7b683ece80cfefd05d7c40ad69aeabbf

SHA512
ac5cfccbfa9b37de5e2a6db86c28eb720d2484c5365775b384df66b8f9239d691cd4ea398bbdbba11faf440b53db3b40e0ce5023ae1e9a951185793ac818cfd2

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

Filesize
45KB

MD5
05b54deb0e3e6a3fb9155a14642b50ba

SHA1
77bf6744502a5946861baf104c1cf4babc171b9c

SHA256
c759cde09cf057c2430ceb74bd7f15427d2ad27f0b77dcc8630c8a148486cf27

SHA512
3668e77850acfb0c42f1d15de08fcd737f0c6d7087f25f6404b1f378aea94ca34ab0d85f2bea1c8a9d11692a039d0fa42aeec4876bb802ae2c192608e5bc5a9b

Download Submit
memory/2788-16-0x0000000000D40000-0x0000000000D52000-memory.dmp

Filesize
72KB

Download
memory/2960-0-0x00000000744FE000-0x00000000744FF000-memory.dmp

Filesize
4KB

Download
memory/2960-1-0x0000000000D60000-0x0000000000D72000-memory.dmp

Filesize
72KB

Download
memory/2960-2-0x00000000744F0000-0x0000000074BDE000-memory.dmp

Filesize
6.9MB

Download
memory/2960-12-0x00000000744F0000-0x0000000074BDE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads