asyncrat | abf8c0425e1f9fcda7ad276bf1bef3ed6c809f18566aa615b81c5cb7940bb025

General

Target

NVIDIAGeForceExperience.exe
Size

515KB
MD5

96ef75b619c48477b1aff625f4aadd58
SHA1

c869edf72ef6cf1c4412f0c4d98891b3c66483c9
SHA256

abf8c0425e1f9fcda7ad276bf1bef3ed6c809f18566aa615b81c5cb7940bb025
SHA512

9835d256ffa1632f2a8f3b7f902a0b8e1c6dbcfd51e69dfa6ce7b9f6965e8cb760a2824749ff80c1845c9703506c8a40e780659418955193097ada97ff328197
SSDEEP

3072:1qXibN8kmKuHUYF2drg2Ab4aUzwtszjJY:AXm7/RXAb9Uz9i

Score

10^/10

asyncrat testing discovery rat

Malware Config

Extracted

Family

asyncrat

Version

| Edit by Vinom Rat

Botnet

Testing

C2

AnonymousUser222222222222-49972.portmap.host:49972

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
true
install_file
NVIDIA.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
behavioral1/files/0x000d000000012281-13.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2916	NVIDIA.exe

Loads dropped DLL 1 IoCs

pid	Process
592	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	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NVIDIA.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NVIDIAGeForceExperience.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2780	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
2760	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2380	NVIDIAGeForceExperience.exe
2380	NVIDIAGeForceExperience.exe
2380	NVIDIAGeForceExperience.exe
2916	NVIDIA.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2380	NVIDIAGeForceExperience.exe
Token: SeDebugPrivilege	2916	NVIDIA.exe
Token: SeDebugPrivilege	2916	NVIDIA.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2916	NVIDIA.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2468	2380	NVIDIAGeForceExperience.exe	31
PID 2380 wrote to memory of 2468	2380	NVIDIAGeForceExperience.exe	31
PID 2380 wrote to memory of 2468	2380	NVIDIAGeForceExperience.exe	31
PID 2380 wrote to memory of 2468	2380	NVIDIAGeForceExperience.exe	31
PID 2380 wrote to memory of 592	2380	NVIDIAGeForceExperience.exe	33
PID 2380 wrote to memory of 592	2380	NVIDIAGeForceExperience.exe	33
PID 2380 wrote to memory of 592	2380	NVIDIAGeForceExperience.exe	33
PID 2380 wrote to memory of 592	2380	NVIDIAGeForceExperience.exe	33
PID 592 wrote to memory of 2780	592	cmd.exe	36
PID 592 wrote to memory of 2780	592	cmd.exe	36
PID 592 wrote to memory of 2780	592	cmd.exe	36
PID 592 wrote to memory of 2780	592	cmd.exe	36
PID 2468 wrote to memory of 2760	2468	cmd.exe	35
PID 2468 wrote to memory of 2760	2468	cmd.exe	35
PID 2468 wrote to memory of 2760	2468	cmd.exe	35
PID 2468 wrote to memory of 2760	2468	cmd.exe	35
PID 592 wrote to memory of 2916	592	cmd.exe	38
PID 592 wrote to memory of 2916	592	cmd.exe	38
PID 592 wrote to memory of 2916	592	cmd.exe	38
PID 592 wrote to memory of 2916	592	cmd.exe	38

C:\Users\Admin\AppData\Local\Temp\NVIDIAGeForceExperience.exe
"C:\Users\Admin\AppData\Local\Temp\NVIDIAGeForceExperience.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "NVIDIA" /tr '"C:\Users\Admin\AppData\Roaming\NVIDIA.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2468
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "NVIDIA" /tr '"C:\Users\Admin\AppData\Roaming\NVIDIA.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2760
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpC227.tmp.bat""
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:592
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2780
- - C:\Users\Admin\AppData\Roaming\NVIDIA.exe
    "C:\Users\Admin\AppData\Roaming\NVIDIA.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2916

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 Information Discovery

1

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\tmpC227.tmp.bat

Filesize
150B

MD5
e3cd088572076e588fa2044c649871f7

SHA1
43f376a0b0d17c82a8011007acde341cc7193a5c

SHA256
d6ef4cddaaf1622a523958361e852a8498627a978df57ca9113a285b106f05d6

SHA512
aaaa8644e9389c22699bb1be7e1782f9b8d5b6abc53e6057a03c23d15484ef0f9fd113d828a33f0b7034e35dfbc51da72e46750a146626f4b9b3282fa8ebc1d2

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

Filesize
515KB

MD5
96ef75b619c48477b1aff625f4aadd58

SHA1
c869edf72ef6cf1c4412f0c4d98891b3c66483c9

SHA256
abf8c0425e1f9fcda7ad276bf1bef3ed6c809f18566aa615b81c5cb7940bb025

SHA512
9835d256ffa1632f2a8f3b7f902a0b8e1c6dbcfd51e69dfa6ce7b9f6965e8cb760a2824749ff80c1845c9703506c8a40e780659418955193097ada97ff328197

Download Submit
memory/2380-0-0x000000007423E000-0x000000007423F000-memory.dmp

Filesize
4KB

Download
memory/2380-1-0x0000000000F40000-0x0000000000FC6000-memory.dmp

Filesize
536KB

Download
memory/2380-2-0x0000000074230000-0x000000007491E000-memory.dmp

Filesize
6.9MB

Download
memory/2380-12-0x0000000074230000-0x000000007491E000-memory.dmp

Filesize
6.9MB

Download
memory/2916-16-0x0000000001210000-0x0000000001296000-memory.dmp

Filesize
536KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads