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

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
behavioral2/files/0x000b000000023b5c-12.dat	family_asyncrat

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	Discord3.exe

Executes dropped EXE 1 IoCs

pid	Process
812	Discord.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	Discord3.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
5064	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
4836	schtasks.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
4164	Discord3.exe
4164	Discord3.exe
4164	Discord3.exe
4164	Discord3.exe
4164	Discord3.exe
4164	Discord3.exe
4164	Discord3.exe
4164	Discord3.exe
4164	Discord3.exe
4164	Discord3.exe
4164	Discord3.exe
4164	Discord3.exe
4164	Discord3.exe
4164	Discord3.exe
4164	Discord3.exe
4164	Discord3.exe
4164	Discord3.exe
4164	Discord3.exe
4164	Discord3.exe
4164	Discord3.exe
4164	Discord3.exe
4164	Discord3.exe
4164	Discord3.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4164	Discord3.exe
Token: SeDebugPrivilege	812	Discord.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4164 wrote to memory of 4948	4164	Discord3.exe	83
PID 4164 wrote to memory of 4948	4164	Discord3.exe	83
PID 4164 wrote to memory of 4948	4164	Discord3.exe	83
PID 4164 wrote to memory of 3036	4164	Discord3.exe	85
PID 4164 wrote to memory of 3036	4164	Discord3.exe	85
PID 4164 wrote to memory of 3036	4164	Discord3.exe	85
PID 4948 wrote to memory of 4836	4948	cmd.exe	87
PID 4948 wrote to memory of 4836	4948	cmd.exe	87
PID 4948 wrote to memory of 4836	4948	cmd.exe	87
PID 3036 wrote to memory of 5064	3036	cmd.exe	88
PID 3036 wrote to memory of 5064	3036	cmd.exe	88
PID 3036 wrote to memory of 5064	3036	cmd.exe	88
PID 3036 wrote to memory of 812	3036	cmd.exe	91
PID 3036 wrote to memory of 812	3036	cmd.exe	91
PID 3036 wrote to memory of 812	3036	cmd.exe	91

C:\Users\Admin\AppData\Local\Temp\Discord3.exe
"C:\Users\Admin\AppData\Local\Temp\Discord3.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4164
- 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:4948
- - 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:4836
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp7F80.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3036
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:5064
- - 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:812

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

Query Registry

1

T1012

System Information Discovery

2

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\tmp7F80.tmp.bat

Filesize
151B

MD5
db036e8e4ad70c28f2c863097689d5e5

SHA1
0a4b99048004308611d2602a5d47545ca63ea98d

SHA256
6e9e5722bce69a92d56a8573ab8a2a24750769b3a5f8ffc75472be847ece4b55

SHA512
7717566366449b75ad0b9dd80541d3b5897f1e8259dc7b6223929899a06c98785b93f4af0f888bf4cc4a8649225f352033b9d73fbb626e0cb898a38d73ce46ab

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

Filesize
47KB

MD5
dcec31da98141bb5ebb57d474de65edc

SHA1
56b0db53fb20b171291d2ad1066b2aea09bad38d

SHA256
cf1597d08ba3eddf6839c3b54c723ccc1db8d1c6edc1f416d05de29cec36aa49

SHA512
5b9332fdb1e21a0559e1c8052f7fef46465e4d7ea2d49d6894ca2ce575ba8158f2166bb40ce26ad5f7ad4e9a93728e565959d49583981ac7dfb20c659dbaee99

Download Submit
memory/812-14-0x0000000074460000-0x0000000074C10000-memory.dmp

Filesize
7.7MB

Download
memory/812-15-0x0000000074460000-0x0000000074C10000-memory.dmp

Filesize
7.7MB

Download
memory/4164-0-0x00000000744FE000-0x00000000744FF000-memory.dmp

Filesize
4KB

Download
memory/4164-1-0x00000000007D0000-0x00000000007E2000-memory.dmp

Filesize
72KB

Download
memory/4164-2-0x00000000744F0000-0x0000000074CA0000-memory.dmp

Filesize
7.7MB

Download
memory/4164-3-0x0000000005160000-0x00000000051C6000-memory.dmp

Filesize
408KB

Download
memory/4164-4-0x0000000005600000-0x000000000569C000-memory.dmp

Filesize
624KB

Download
memory/4164-9-0x00000000744F0000-0x0000000074CA0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads