asyncrat | cc16889abbfe38386a105e602d856c512a2dfd51795ad55092ab27983e70b3b5

General

Target

MoonStealer-main/install.bat
Size

95B
MD5

7c928c6358b7d280aff4be1ff2ac7c29
SHA1

6e9014938d6d05791cfba2473397ad7e39ae5881
SHA256

9fa41aabbfef72bc8a6d3342b2f399a82c2f6ec7bc14e46bc1d3dcacd4f5d3c3
SHA512

a6558bb4e546cd87b7787117741d01e8ed936b3ecaef32855533b1e4cd54d068e9f75ec560304a445c56605aebec8f2070f51c2e3b20661a3688c8a811677dd9

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

23.94.99.6:6606

23.94.99.6:7707

23.94.99.6:8808

23.94.99.6:4782

Mutex

qdWLYmlsI9yW

Attributes

delay
3
install
true
install_file
required.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

Processes:

resource	yara_rule
behavioral8/files/0x000b000000023b89-11.dat	family_asyncrat

Executes dropped EXE 1 IoCs

Processes:

required.exe

pid	Process
3936	required.exe

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

Processes:

updater.execmd.execmd.exeschtasks.exetimeout.exerequired.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	updater.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	required.exe

Delays execution with timeout.exe 1 IoCs

evasion

Processes:

timeout.exe

pid	Process
3700	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

Processes:

schtasks.exe

pid	Process
2892	schtasks.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

updater.exe

pid	Process
4320	updater.exe
4320	updater.exe
4320	updater.exe
4320	updater.exe
4320	updater.exe
4320	updater.exe
4320	updater.exe
4320	updater.exe
4320	updater.exe
4320	updater.exe
4320	updater.exe
4320	updater.exe
4320	updater.exe
4320	updater.exe
4320	updater.exe
4320	updater.exe
4320	updater.exe
4320	updater.exe
4320	updater.exe
4320	updater.exe
4320	updater.exe
4320	updater.exe
4320	updater.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

updater.exerequired.exe

description	pid	Process
Token: SeDebugPrivilege	4320	updater.exe
Token: SeDebugPrivilege	3936	required.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

cmd.exeupdater.execmd.execmd.exe

description	pid	Process	procid_target
PID 4204 wrote to memory of 4320	4204	cmd.exe	83
PID 4204 wrote to memory of 4320	4204	cmd.exe	83
PID 4204 wrote to memory of 4320	4204	cmd.exe	83
PID 4320 wrote to memory of 436	4320	updater.exe	84
PID 4320 wrote to memory of 436	4320	updater.exe	84
PID 4320 wrote to memory of 436	4320	updater.exe	84
PID 4320 wrote to memory of 5040	4320	updater.exe	86
PID 4320 wrote to memory of 5040	4320	updater.exe	86
PID 4320 wrote to memory of 5040	4320	updater.exe	86
PID 436 wrote to memory of 2892	436	cmd.exe	88
PID 436 wrote to memory of 2892	436	cmd.exe	88
PID 436 wrote to memory of 2892	436	cmd.exe	88
PID 5040 wrote to memory of 3700	5040	cmd.exe	89
PID 5040 wrote to memory of 3700	5040	cmd.exe	89
PID 5040 wrote to memory of 3700	5040	cmd.exe	89
PID 5040 wrote to memory of 3936	5040	cmd.exe	90
PID 5040 wrote to memory of 3936	5040	cmd.exe	90
PID 5040 wrote to memory of 3936	5040	cmd.exe	90

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\MoonStealer-main\install.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:4204
- C:\Users\Admin\AppData\Local\Temp\MoonStealer-main\MoonStealer_assets\upx\updater.exe
  .\MoonStealer_assets\upx\updater.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4320
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "required" /tr '"C:\Users\Admin\AppData\Roaming\required.exe"' & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:436
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /sc onlogon /rl highest /tn "required" /tr '"C:\Users\Admin\AppData\Roaming\required.exe"'
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:2892
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8BA6.tmp.bat""
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:5040
  - - C:\Windows\SysWOW64\timeout.exe
      timeout 3
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:3700
  - - C:\Users\Admin\AppData\Roaming\required.exe
      "C:\Users\Admin\AppData\Roaming\required.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      PID:3936

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 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\tmp8BA6.tmp.bat

Filesize
152B

MD5
1676ced29288350b5a7747d222446115

SHA1
7e1fe00ed05323b5bb35ca5142cc5a3134bebc31

SHA256
51e9232df77cc18b556bbbb7a967a807b0ea710c608766790d46ecdb3ddba295

SHA512
5908410f7a1ea27702535fd0e3e221d72fb24befd62712bcde180d2c1211bee1a6edc1f00cbdc95d3077b0c10fa663af9f5cad4d9f2c667001e94f9774f2fdbd

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

Filesize
48KB

MD5
403e30df6166df14523e6f820703241a

SHA1
9f00e1baf4313fd33a513251b494d2340e88a91b

SHA256
e57f42b4a9e3305785a2a6e1ffb14fa82d90d5094e8e5ecb3cd8fcb903637d92

SHA512
885dfaf6fd4c14dcfa223a7a8cb3258b4c81da589eacb5d2da5d4ffbeb594ec2c9483ab1d75fc7a9b6cd1567cf82f94ded18ace4e14540f2f48033eed2f16a44

Download Submit
memory/3936-13-0x0000000074CC0000-0x0000000075470000-memory.dmp

Filesize
7.7MB

Download
memory/3936-14-0x0000000074CC0000-0x0000000075470000-memory.dmp

Filesize
7.7MB

Download
memory/4320-0-0x0000000074D6E000-0x0000000074D6F000-memory.dmp

Filesize
4KB

Download
memory/4320-1-0x0000000000310000-0x0000000000322000-memory.dmp

Filesize
72KB

Download
memory/4320-2-0x0000000074D60000-0x0000000075510000-memory.dmp

Filesize
7.7MB

Download
memory/4320-3-0x0000000004CE0000-0x0000000004D7C000-memory.dmp

Filesize
624KB

Download
memory/4320-9-0x0000000074D60000-0x0000000075510000-memory.dmp

Filesize
7.7MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads