asyncrat | cf1597d08ba3eddf6839c3b54c723ccc1db8d1c6edc1f416d05de29cec36aa49

General

Target

Discord3.exe
Size

47KB
MD5

dcec31da98141bb5ebb57d474de65edc
SHA1

56b0db53fb20b171291d2ad1066b2aea09bad38d
SHA256

cf1597d08ba3eddf6839c3b54c723ccc1db8d1c6edc1f416d05de29cec36aa49
SHA512

5b9332fdb1e21a0559e1c8052f7fef46465e4d7ea2d49d6894ca2ce575ba8158f2166bb40ce26ad5f7ad4e9a93728e565959d49583981ac7dfb20c659dbaee99
SSDEEP

768:AuyJNTAoZjRWUJd9bmo2qL0i120YsvdPI5SqK20bbld2UVuVSUnJ5ScNBDZwx:AuyJNTAGL2MvaEqKZbbldX0l3Sudwx

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

7U2HW8ZYjc9H

Attributes

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

aes.plain

1
UBWWW3KXVDdHJELE2MlU9MArpc3NcBhQ

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/0x003500000001487e-13.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
3000	Discord.exe

Loads dropped DLL 1 IoCs

pid	Process
2632	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	Discord3.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
2788	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
2704	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1044	Discord3.exe
1044	Discord3.exe
1044	Discord3.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1044	Discord3.exe
Token: SeDebugPrivilege	3000	Discord.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1044 wrote to memory of 2752	1044	Discord3.exe	29
PID 1044 wrote to memory of 2752	1044	Discord3.exe	29
PID 1044 wrote to memory of 2752	1044	Discord3.exe	29
PID 1044 wrote to memory of 2752	1044	Discord3.exe	29
PID 1044 wrote to memory of 2632	1044	Discord3.exe	31
PID 1044 wrote to memory of 2632	1044	Discord3.exe	31
PID 1044 wrote to memory of 2632	1044	Discord3.exe	31
PID 1044 wrote to memory of 2632	1044	Discord3.exe	31
PID 2752 wrote to memory of 2704	2752	cmd.exe	33
PID 2752 wrote to memory of 2704	2752	cmd.exe	33
PID 2752 wrote to memory of 2704	2752	cmd.exe	33
PID 2752 wrote to memory of 2704	2752	cmd.exe	33
PID 2632 wrote to memory of 2788	2632	cmd.exe	34
PID 2632 wrote to memory of 2788	2632	cmd.exe	34
PID 2632 wrote to memory of 2788	2632	cmd.exe	34
PID 2632 wrote to memory of 2788	2632	cmd.exe	34
PID 2632 wrote to memory of 3000	2632	cmd.exe	35
PID 2632 wrote to memory of 3000	2632	cmd.exe	35
PID 2632 wrote to memory of 3000	2632	cmd.exe	35
PID 2632 wrote to memory of 3000	2632	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\Discord3.exe
"C:\Users\Admin\AppData\Local\Temp\Discord3.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1044
- 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:2752
- - 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:2704
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp698C.tmp.bat""
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2632
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2788
- - 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:3000

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

147.185.221.18:9028

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
147.185.221.18:8808

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
147.185.221.18:9028

18.ip.gl.ply.gg

Discord.exe

104 B
2

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\tmp698C.tmp.bat

Filesize
151B

MD5
28a91f8d1f753ea7ab95dd1c42f5b3cd

SHA1
cb70e7e9432cb7617d19518df2fe77b9b965eab4

SHA256
917e162906b8ba22794b72d748aeeebf0deb2aa5e6b31f954fb76f47338efd63

SHA512
f95f179046555df0dc10a18bdfa71130349cdf55d888bebd20352a50cadd6d8ac539502b9f9b716cb7e54201e1ce287e7fc8f60101dea77e09ac6e6422591219

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

Filesize
47KB

MD5
dcec31da98141bb5ebb57d474de65edc

SHA1
56b0db53fb20b171291d2ad1066b2aea09bad38d

SHA256
cf1597d08ba3eddf6839c3b54c723ccc1db8d1c6edc1f416d05de29cec36aa49

SHA512
5b9332fdb1e21a0559e1c8052f7fef46465e4d7ea2d49d6894ca2ce575ba8158f2166bb40ce26ad5f7ad4e9a93728e565959d49583981ac7dfb20c659dbaee99

Download Submit
memory/1044-0-0x00000000740EE000-0x00000000740EF000-memory.dmp

Filesize
4KB

Download
memory/1044-1-0x00000000013A0000-0x00000000013B2000-memory.dmp

Filesize
72KB

Download
memory/1044-2-0x00000000740E0000-0x00000000747CE000-memory.dmp

Filesize
6.9MB

Download
memory/1044-12-0x00000000740E0000-0x00000000747CE000-memory.dmp

Filesize
6.9MB

Download
memory/3000-16-0x0000000000D10000-0x0000000000D22000-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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