asyncrat | 6508dd74c69d399050b07256b4b25cd66cfd774848d55fe330a9d77ad09ce03f

General

Target

UIServices.exe
Size

170KB
MD5

4376ea4b5ba0f8a061dc18342267e85c
SHA1

8d99fa9673835644c641ae4533f005dca4522f6c
SHA256

6508dd74c69d399050b07256b4b25cd66cfd774848d55fe330a9d77ad09ce03f
SHA512

24811d6dd05df0000b5d0948a833c49ef32a7e5fc3a5cab6c61e9331b6966026f03254eb1a8a9945e8a4e43d1e38bdebed2ec0e8337873de3386c4c4b5bde0a6
SSDEEP

3072:++STW8djpN6izj8mZwdJqutB+YDpqIPu/i9bVK2cw6+Wp7:j8XN6W8mmHPtppXPSi9b4

Score

10^/10

asyncrat stormkitty default discovery persistence privilege_escalation rat spyware stealer

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

https://api.telegram.org/bot6987227198:AAGW8xEs5eNdfO7EF-8152h-RqJkKbn52BE/sendMessage?chat_id=1075483951

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
false
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
StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 1 IoCs

resource	yara_rule
behavioral1/memory/1224-1-0x00000000007D0000-0x0000000000800000-memory.dmp	family_stormkitty

Stormkitty family
stormkitty
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Drops desktop.ini file(s) 9 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\5416a3b7a0971b311c43c3b3f8adc8e7\Admin@IEYJLSCD_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	UIServices.exe
File opened for modification	C:\Users\Admin\AppData\Local\5416a3b7a0971b311c43c3b3f8adc8e7\Admin@IEYJLSCD_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	UIServices.exe
File opened for modification	C:\Users\Admin\AppData\Local\5416a3b7a0971b311c43c3b3f8adc8e7\Admin@IEYJLSCD_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	UIServices.exe
File created	C:\Users\Admin\AppData\Local\5416a3b7a0971b311c43c3b3f8adc8e7\Admin@IEYJLSCD_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	UIServices.exe
File created	C:\Users\Admin\AppData\Local\5416a3b7a0971b311c43c3b3f8adc8e7\Admin@IEYJLSCD_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	UIServices.exe
File opened for modification	C:\Users\Admin\AppData\Local\5416a3b7a0971b311c43c3b3f8adc8e7\Admin@IEYJLSCD_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	UIServices.exe
File created	C:\Users\Admin\AppData\Local\5416a3b7a0971b311c43c3b3f8adc8e7\Admin@IEYJLSCD_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	UIServices.exe
File created	C:\Users\Admin\AppData\Local\5416a3b7a0971b311c43c3b3f8adc8e7\Admin@IEYJLSCD_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini	UIServices.exe
File created	C:\Users\Admin\AppData\Local\5416a3b7a0971b311c43c3b3f8adc8e7\Admin@IEYJLSCD_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini	UIServices.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
12	icanhazip.com

Looks up geolocation information via web service
Uses a legitimate geolocation service to find the infected system's geolocation info.
Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

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	chcp.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	UIServices.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	findstr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 2 IoCs

Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

discovery

Wi-Fi Discovery

T1016.002

pid	Process
4424	cmd.exe
3088	netsh.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	UIServices.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	UIServices.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
1224	UIServices.exe
1224	UIServices.exe
1224	UIServices.exe
1224	UIServices.exe
1224	UIServices.exe
1224	UIServices.exe
1224	UIServices.exe
1224	UIServices.exe
1224	UIServices.exe
1224	UIServices.exe
1224	UIServices.exe
1224	UIServices.exe
1224	UIServices.exe
1224	UIServices.exe
1224	UIServices.exe
1224	UIServices.exe
1224	UIServices.exe
1224	UIServices.exe
1224	UIServices.exe
1224	UIServices.exe
1224	UIServices.exe
1224	UIServices.exe
1224	UIServices.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1224	UIServices.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1224 wrote to memory of 4424	1224	UIServices.exe	88
PID 1224 wrote to memory of 4424	1224	UIServices.exe	88
PID 1224 wrote to memory of 4424	1224	UIServices.exe	88
PID 4424 wrote to memory of 3628	4424	cmd.exe	90
PID 4424 wrote to memory of 3628	4424	cmd.exe	90
PID 4424 wrote to memory of 3628	4424	cmd.exe	90
PID 4424 wrote to memory of 3088	4424	cmd.exe	91
PID 4424 wrote to memory of 3088	4424	cmd.exe	91
PID 4424 wrote to memory of 3088	4424	cmd.exe	91
PID 4424 wrote to memory of 1220	4424	cmd.exe	92
PID 4424 wrote to memory of 1220	4424	cmd.exe	92
PID 4424 wrote to memory of 1220	4424	cmd.exe	92
PID 1224 wrote to memory of 3024	1224	UIServices.exe	93
PID 1224 wrote to memory of 3024	1224	UIServices.exe	93
PID 1224 wrote to memory of 3024	1224	UIServices.exe	93
PID 3024 wrote to memory of 2744	3024	cmd.exe	95
PID 3024 wrote to memory of 2744	3024	cmd.exe	95
PID 3024 wrote to memory of 2744	3024	cmd.exe	95
PID 3024 wrote to memory of 1084	3024	cmd.exe	96
PID 3024 wrote to memory of 1084	3024	cmd.exe	96
PID 3024 wrote to memory of 1084	3024	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\UIServices.exe
"C:\Users\Admin\AppData\Local\Temp\UIServices.exe"
1⤵
- Drops desktop.ini file(s)
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1224
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Wi-Fi Discovery
  - Suspicious use of WriteProcessMemory
  PID:4424
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3628
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show profile
    3⤵
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Wi-Fi Discovery
    PID:3088
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1220
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3024
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2744
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show networks mode=bssid
    3⤵
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:1084

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Browser Information Discovery

Query Registry

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Wi-Fi Discovery

1

T1016.002

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\5416a3b7a0971b311c43c3b3f8adc8e7\Admin@IEYJLSCD_en-US\System\Process.txt

Filesize
4KB

MD5
3b309848b0e4288ee16f2c70b5671ce7

SHA1
b3ede4c2b0ee8f67a7ea50ebf8a4478c614c6791

SHA256
c136bd64c3c5990c0ef710a1372212f36df7f69664f3271bc36cc78f3b076a48

SHA512
64eb880ae3b5c440dc466b73a4fd6dc52410e571ab60692dda12ac7919a95f37e8be9b0a2dd78d1bc67ca1a8128a56a97e74877146f1637e0b7c19ba6747a814

Download Submit
memory/1224-0-0x00000000747EE000-0x00000000747EF000-memory.dmp

Filesize
4KB

Download
memory/1224-1-0x00000000007D0000-0x0000000000800000-memory.dmp

Filesize
192KB

Download
memory/1224-2-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/1224-3-0x00000000052E0000-0x0000000005346000-memory.dmp

Filesize
408KB

Download
memory/1224-130-0x00000000747EE000-0x00000000747EF000-memory.dmp

Filesize
4KB

Download
memory/1224-147-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/1224-148-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/1224-149-0x0000000005D10000-0x0000000005DA2000-memory.dmp

Filesize
584KB

Download
memory/1224-150-0x0000000006360000-0x0000000006904000-memory.dmp

Filesize
5.6MB

Download
memory/1224-154-0x0000000005E30000-0x0000000005E3A000-memory.dmp

Filesize
40KB

Download
memory/1224-155-0x00000000747E0000-0x0000000074F90000-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