asyncrat | c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded

Analysis

max time kernel
121s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-01-2025 05:17

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General

Target

c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
Size

1.3MB
MD5

76373a6166baaf98f7bcaeda47be1c31
SHA1

c847ef0f375229315ffa87706766c9054b4d6572
SHA256

c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded
SHA512

aec1da7987348823f63151ee0ae7902bb2d8d4321d35c91d58711eac7c8cb973600d8d15ef9965881fd829388031e22123d039a3d56471c0bf17719f80a8eb83
SSDEEP

24576:GzyGrV6xcTu/39VnvGORWPBmrze5e+6nJCA6t1zsXoOPG8:GAdPhwJj/Ob

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

45.150.149.97:1700

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
true
install_file
Registry.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

Executes dropped EXE 2 IoCs

pid	Process
2772	Registry.exe
2624	Registry.exe

Loads dropped DLL 1 IoCs

pid	Process
2832	cmd.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2164 set thread context of 2396	2164	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe	31
PID 2772 set thread context of 2624	2772	Registry.exe	39

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 8 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	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.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	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Registry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Registry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2708	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
2768	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2396	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
2396	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
2396	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2164	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
Token: SeDebugPrivilege	2396	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
Token: SeDebugPrivilege	2772	Registry.exe
Token: SeDebugPrivilege	2624	Registry.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 2164 wrote to memory of 2396	2164	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe	31
PID 2164 wrote to memory of 2396	2164	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe	31
PID 2164 wrote to memory of 2396	2164	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe	31
PID 2164 wrote to memory of 2396	2164	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe	31
PID 2164 wrote to memory of 2396	2164	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe	31
PID 2164 wrote to memory of 2396	2164	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe	31
PID 2396 wrote to memory of 2848	2396	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe	32
PID 2396 wrote to memory of 2848	2396	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe	32
PID 2396 wrote to memory of 2848	2396	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe	32
PID 2396 wrote to memory of 2848	2396	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe	32
PID 2396 wrote to memory of 2832	2396	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe	34
PID 2396 wrote to memory of 2832	2396	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe	34
PID 2396 wrote to memory of 2832	2396	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe	34
PID 2396 wrote to memory of 2832	2396	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe	34
PID 2848 wrote to memory of 2768	2848	cmd.exe	36
PID 2848 wrote to memory of 2768	2848	cmd.exe	36
PID 2848 wrote to memory of 2768	2848	cmd.exe	36
PID 2848 wrote to memory of 2768	2848	cmd.exe	36
PID 2832 wrote to memory of 2708	2832	cmd.exe	37
PID 2832 wrote to memory of 2708	2832	cmd.exe	37
PID 2832 wrote to memory of 2708	2832	cmd.exe	37
PID 2832 wrote to memory of 2708	2832	cmd.exe	37
PID 2832 wrote to memory of 2772	2832	cmd.exe	38
PID 2832 wrote to memory of 2772	2832	cmd.exe	38
PID 2832 wrote to memory of 2772	2832	cmd.exe	38
PID 2832 wrote to memory of 2772	2832	cmd.exe	38
PID 2772 wrote to memory of 2624	2772	Registry.exe	39
PID 2772 wrote to memory of 2624	2772	Registry.exe	39
PID 2772 wrote to memory of 2624	2772	Registry.exe	39
PID 2772 wrote to memory of 2624	2772	Registry.exe	39
PID 2772 wrote to memory of 2624	2772	Registry.exe	39
PID 2772 wrote to memory of 2624	2772	Registry.exe	39

C:\Users\Admin\AppData\Local\Temp\c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
"C:\Users\Admin\AppData\Local\Temp\c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2164
- C:\Users\Admin\AppData\Local\Temp\c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
  C:\Users\Admin\AppData\Local\Temp\c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2396
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Registry" /tr '"C:\Users\Admin\AppData\Roaming\Registry.exe"' & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2848
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /sc onlogon /rl highest /tn "Registry" /tr '"C:\Users\Admin\AppData\Roaming\Registry.exe"'
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:2768
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpDA19.tmp.bat""
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2832
  - - C:\Windows\SysWOW64\timeout.exe
      timeout 3
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:2708
  - - C:\Users\Admin\AppData\Roaming\Registry.exe
      "C:\Users\Admin\AppData\Roaming\Registry.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:2772
    - - C:\Users\Admin\AppData\Roaming\Registry.exe
        
        C:\Users\Admin\AppData\Roaming\Registry.exe
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:2624

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\CabF75C.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpDA19.tmp.bat

Filesize
152B

MD5
0a631bdc2642a14352a18d5190bf028e

SHA1
bb905712c4564339ebae0d0c65c80d79f8f927a7

SHA256
3ee7e88bda94afe6f4e3f848f3dec9d3842828f81dd7356bcc3685067e33cd5a

SHA512
646babd3a0506ceeca668a8c821e96cebae044e7b54c935f5ea3f90b164cf253cb19b6539a69428e694fdbf551d3b53786d2bd5e82ebafa787dc5674eafcf0bd

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

Filesize
1.3MB

MD5
76373a6166baaf98f7bcaeda47be1c31

SHA1
c847ef0f375229315ffa87706766c9054b4d6572

SHA256
c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded

SHA512
aec1da7987348823f63151ee0ae7902bb2d8d4321d35c91d58711eac7c8cb973600d8d15ef9965881fd829388031e22123d039a3d56471c0bf17719f80a8eb83

Download Submit
memory/2164-23-0x0000000074030000-0x000000007471E000-memory.dmp

Filesize
6.9MB

Download
memory/2164-3-0x0000000000470000-0x000000000047A000-memory.dmp

Filesize
40KB

Download
memory/2164-1-0x0000000000290000-0x00000000003CA000-memory.dmp

Filesize
1.2MB

Download
memory/2164-2-0x0000000074030000-0x000000007471E000-memory.dmp

Filesize
6.9MB

Download
memory/2164-22-0x0000000074030000-0x000000007471E000-memory.dmp

Filesize
6.9MB

Download
memory/2164-0-0x000000007403E000-0x000000007403F000-memory.dmp

Filesize
4KB

Download
memory/2396-15-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2396-25-0x0000000074030000-0x000000007471E000-memory.dmp

Filesize
6.9MB

Download
memory/2396-24-0x0000000074030000-0x000000007471E000-memory.dmp

Filesize
6.9MB

Download
memory/2396-34-0x0000000074030000-0x000000007471E000-memory.dmp

Filesize
6.9MB

Download
memory/2396-18-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2396-21-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2624-56-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2624-54-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2772-39-0x00000000008E0000-0x0000000000A1A000-memory.dmp

Filesize
1.2MB

Download