asyncrat | c759cde09cf057c2430ceb74bd7f15427d2ad27f0b77dcc8630c8a148486cf27

General

Target

c759cde09cf057c2430ceb74bd7f15427d2ad27f0b77dcc8630c8a148486cf27.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

1
ED967YbI73q9hV0VBBGFdB9jsiDpLn8g

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/0x00080000000120fd-13.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2960	Discord.exe

Loads dropped DLL 1 IoCs

pid	Process
2908	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	c759cde09cf057c2430ceb74bd7f15427d2ad27f0b77dcc8630c8a148486cf27.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2812	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
2880	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2744	c759cde09cf057c2430ceb74bd7f15427d2ad27f0b77dcc8630c8a148486cf27.exe
2744	c759cde09cf057c2430ceb74bd7f15427d2ad27f0b77dcc8630c8a148486cf27.exe
2744	c759cde09cf057c2430ceb74bd7f15427d2ad27f0b77dcc8630c8a148486cf27.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2744	c759cde09cf057c2430ceb74bd7f15427d2ad27f0b77dcc8630c8a148486cf27.exe
Token: SeDebugPrivilege	2960	Discord.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2744 wrote to memory of 1780	2744	c759cde09cf057c2430ceb74bd7f15427d2ad27f0b77dcc8630c8a148486cf27.exe	30
PID 2744 wrote to memory of 1780	2744	c759cde09cf057c2430ceb74bd7f15427d2ad27f0b77dcc8630c8a148486cf27.exe	30
PID 2744 wrote to memory of 1780	2744	c759cde09cf057c2430ceb74bd7f15427d2ad27f0b77dcc8630c8a148486cf27.exe	30
PID 2744 wrote to memory of 1780	2744	c759cde09cf057c2430ceb74bd7f15427d2ad27f0b77dcc8630c8a148486cf27.exe	30
PID 2744 wrote to memory of 2908	2744	c759cde09cf057c2430ceb74bd7f15427d2ad27f0b77dcc8630c8a148486cf27.exe	32
PID 2744 wrote to memory of 2908	2744	c759cde09cf057c2430ceb74bd7f15427d2ad27f0b77dcc8630c8a148486cf27.exe	32
PID 2744 wrote to memory of 2908	2744	c759cde09cf057c2430ceb74bd7f15427d2ad27f0b77dcc8630c8a148486cf27.exe	32
PID 2744 wrote to memory of 2908	2744	c759cde09cf057c2430ceb74bd7f15427d2ad27f0b77dcc8630c8a148486cf27.exe	32
PID 1780 wrote to memory of 2880	1780	cmd.exe	35
PID 1780 wrote to memory of 2880	1780	cmd.exe	35
PID 1780 wrote to memory of 2880	1780	cmd.exe	35
PID 1780 wrote to memory of 2880	1780	cmd.exe	35
PID 2908 wrote to memory of 2812	2908	cmd.exe	34
PID 2908 wrote to memory of 2812	2908	cmd.exe	34
PID 2908 wrote to memory of 2812	2908	cmd.exe	34
PID 2908 wrote to memory of 2812	2908	cmd.exe	34
PID 2908 wrote to memory of 2960	2908	cmd.exe	36
PID 2908 wrote to memory of 2960	2908	cmd.exe	36
PID 2908 wrote to memory of 2960	2908	cmd.exe	36
PID 2908 wrote to memory of 2960	2908	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\c759cde09cf057c2430ceb74bd7f15427d2ad27f0b77dcc8630c8a148486cf27.exe
"C:\Users\Admin\AppData\Local\Temp\c759cde09cf057c2430ceb74bd7f15427d2ad27f0b77dcc8630c8a148486cf27.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2744
- 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:1780
- - 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:2880
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp8FB2.tmp.bat""
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2908
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2812
- - 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:2960

Network

DNS

18.ip.gl.ply.gg

Discord.exe

Remote address:

8.8.8.8:53

Request

18.ip.gl.ply.gg

IN A

Response

18.ip.gl.ply.gg

IN A

147.185.221.18

10.127.1.47:9028

Discord.exe
147.185.221.18:6606

18.ip.gl.ply.gg

Discord.exe

152 B
3
147.185.221.18:6606

18.ip.gl.ply.gg

Discord.exe

152 B
3
147.185.221.18:6606

18.ip.gl.ply.gg

Discord.exe

152 B
3
147.185.221.18:7707

18.ip.gl.ply.gg

Discord.exe

152 B
3
147.185.221.18:7707

18.ip.gl.ply.gg

Discord.exe

152 B
3
147.185.221.18:7707

18.ip.gl.ply.gg

Discord.exe

52 B
1

8.8.8.8:53

18.ip.gl.ply.gg

dns

Discord.exe

61 B
77 B
1
1

DNS Request

18.ip.gl.ply.gg

DNS Response

147.185.221.18

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp8FB2.tmp.bat

Filesize
151B

MD5
e5f9f0ea395ab5c1d6743112c7cc011b

SHA1
b4c0d9de536201a6921a25c1fbdfc969eb39935b

SHA256
d2943ebae840cd5cb5e497ff6f5aa4192ab9a95cd8997887b429cb1d35b1f433

SHA512
22bde60468452d55a2c777325586fc4a67005eebeb3ad1068c3ac4e6dfe92ee959656e687e761be52789a8b673d5b8f75b174c68eb8eaef3e1e4dd1785e0aab7

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

Filesize
45KB

MD5
05b54deb0e3e6a3fb9155a14642b50ba

SHA1
77bf6744502a5946861baf104c1cf4babc171b9c

SHA256
c759cde09cf057c2430ceb74bd7f15427d2ad27f0b77dcc8630c8a148486cf27

SHA512
3668e77850acfb0c42f1d15de08fcd737f0c6d7087f25f6404b1f378aea94ca34ab0d85f2bea1c8a9d11692a039d0fa42aeec4876bb802ae2c192608e5bc5a9b

Download Submit
memory/2744-0-0x00000000741FE000-0x00000000741FF000-memory.dmp

Filesize
4KB

Download
memory/2744-1-0x0000000001360000-0x0000000001372000-memory.dmp

Filesize
72KB

Download
memory/2744-2-0x00000000741F0000-0x00000000748DE000-memory.dmp

Filesize
6.9MB

Download
memory/2744-11-0x00000000741F0000-0x00000000748DE000-memory.dmp

Filesize
6.9MB

Download
memory/2960-16-0x0000000000C90000-0x0000000000CA2000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

DNS Request

DNS Response

MITRE ATT&CK Enterprise v15

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