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
behavioral2/files/0x000300000001e754-12.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	NVIDIAGeForceExperience.exe

Executes dropped EXE 1 IoCs

pid	Process
2012	NVIDIA.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	NVIDIAGeForceExperience.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	NVIDIA.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3388	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
3556	schtasks.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
2376	NVIDIAGeForceExperience.exe
2376	NVIDIAGeForceExperience.exe
2376	NVIDIAGeForceExperience.exe
2376	NVIDIAGeForceExperience.exe
2376	NVIDIAGeForceExperience.exe
2376	NVIDIAGeForceExperience.exe
2376	NVIDIAGeForceExperience.exe
2376	NVIDIAGeForceExperience.exe
2376	NVIDIAGeForceExperience.exe
2376	NVIDIAGeForceExperience.exe
2376	NVIDIAGeForceExperience.exe
2376	NVIDIAGeForceExperience.exe
2376	NVIDIAGeForceExperience.exe
2376	NVIDIAGeForceExperience.exe
2376	NVIDIAGeForceExperience.exe
2376	NVIDIAGeForceExperience.exe
2376	NVIDIAGeForceExperience.exe
2376	NVIDIAGeForceExperience.exe
2376	NVIDIAGeForceExperience.exe
2376	NVIDIAGeForceExperience.exe
2376	NVIDIAGeForceExperience.exe
2376	NVIDIAGeForceExperience.exe
2376	NVIDIAGeForceExperience.exe
2012	NVIDIA.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2376	NVIDIAGeForceExperience.exe
Token: SeDebugPrivilege	2012	NVIDIA.exe
Token: SeDebugPrivilege	2012	NVIDIA.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2012	NVIDIA.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2376 wrote to memory of 4860	2376	NVIDIAGeForceExperience.exe	83
PID 2376 wrote to memory of 4860	2376	NVIDIAGeForceExperience.exe	83
PID 2376 wrote to memory of 4860	2376	NVIDIAGeForceExperience.exe	83
PID 2376 wrote to memory of 5036	2376	NVIDIAGeForceExperience.exe	85
PID 2376 wrote to memory of 5036	2376	NVIDIAGeForceExperience.exe	85
PID 2376 wrote to memory of 5036	2376	NVIDIAGeForceExperience.exe	85
PID 4860 wrote to memory of 3556	4860	cmd.exe	87
PID 4860 wrote to memory of 3556	4860	cmd.exe	87
PID 4860 wrote to memory of 3556	4860	cmd.exe	87
PID 5036 wrote to memory of 3388	5036	cmd.exe	88
PID 5036 wrote to memory of 3388	5036	cmd.exe	88
PID 5036 wrote to memory of 3388	5036	cmd.exe	88
PID 5036 wrote to memory of 2012	5036	cmd.exe	92
PID 5036 wrote to memory of 2012	5036	cmd.exe	92
PID 5036 wrote to memory of 2012	5036	cmd.exe	92

C:\Users\Admin\AppData\Local\Temp\NVIDIAGeForceExperience.exe
"C:\Users\Admin\AppData\Local\Temp\NVIDIAGeForceExperience.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2376
- 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:4860
- - 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:3556
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpA9AD.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5036
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3388
- - 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:2012

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\tmpA9AD.tmp.bat

Filesize
150B

MD5
9de97241d3553f0eecdea96970256d1e

SHA1
87e6acf2e9c8a9de7ad6721291ae5c775d1717aa

SHA256
bb119ea41f3f02ddcc379ef10b74e3d313873e979bca4b26f5887f0025d0cc2a

SHA512
0234d292336a3a2a3f798c52e8fb709cdd7160af5127fc5800b598df625dc4ff251dcd99254902360708a15d6b2d66b22b376ee15d89874e38b1c7990e48972e

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

Filesize
515KB

MD5
96ef75b619c48477b1aff625f4aadd58

SHA1
c869edf72ef6cf1c4412f0c4d98891b3c66483c9

SHA256
abf8c0425e1f9fcda7ad276bf1bef3ed6c809f18566aa615b81c5cb7940bb025

SHA512
9835d256ffa1632f2a8f3b7f902a0b8e1c6dbcfd51e69dfa6ce7b9f6965e8cb760a2824749ff80c1845c9703506c8a40e780659418955193097ada97ff328197

Download Submit
memory/2012-15-0x0000000074B80000-0x0000000075330000-memory.dmp

Filesize
7.7MB

Download
memory/2012-14-0x0000000074B80000-0x0000000075330000-memory.dmp

Filesize
7.7MB

Download
memory/2012-16-0x00000000058F0000-0x0000000005E94000-memory.dmp

Filesize
5.6MB

Download
memory/2012-17-0x0000000005620000-0x00000000056B2000-memory.dmp

Filesize
584KB

Download
memory/2012-18-0x00000000055E0000-0x00000000055EA000-memory.dmp

Filesize
40KB

Download
memory/2012-19-0x0000000074B80000-0x0000000075330000-memory.dmp

Filesize
7.7MB

Download
memory/2012-20-0x0000000074B80000-0x0000000075330000-memory.dmp

Filesize
7.7MB

Download
memory/2376-3-0x0000000004D90000-0x0000000004DF6000-memory.dmp

Filesize
408KB

Download
memory/2376-4-0x0000000005260000-0x00000000052FC000-memory.dmp

Filesize
624KB

Download
memory/2376-9-0x0000000074B80000-0x0000000075330000-memory.dmp

Filesize
7.7MB

Download
memory/2376-2-0x0000000074B80000-0x0000000075330000-memory.dmp

Filesize
7.7MB

Download
memory/2376-1-0x00000000003D0000-0x0000000000456000-memory.dmp

Filesize
536KB

Download
memory/2376-0-0x0000000074B8E000-0x0000000074B8F000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads