asyncrat | 24df78e691e9cfa6b363d97d9cf120d1e4d1de0d2f63d1998bf375924eb04a94

Analysis

max time kernel
9s
max time network
1s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
23-08-2024 13:36

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General

Target

Hik Bruteforce v2.exe
Size

170KB
MD5

3a7eef4a84aed62a508f6a4b7dee2c84
SHA1

6f8cd821581de3337d2e15b35519430f77b1413a
SHA256

24df78e691e9cfa6b363d97d9cf120d1e4d1de0d2f63d1998bf375924eb04a94
SHA512

09e159e8091fcf9870d7f2bc9f95a3177b7dad608a8a95160cd12d214de72f7933cd3aca489c72079a544eab4ebd6b137aae2d4f4aa7e99a1c2495da0d0a03e3
SSDEEP

3072:T+STW8djpN6izj8mZwtJZ8yWmRIPu/i9bNJ2cJ6V6+Wpn:w8XN6W8mmtUy7KPSi9bL2

Score

10^/10

asyncrat stormkitty default credential_access discovery persistence privilege_escalation rat spyware stealer

Malware Config

Extracted

Family

asyncrat

Botnet

Default

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

https://api.telegram.org/bot7011456348:AAFxhHntxKAFnfPPOKU15CPsYvWSR2BNXdg/sendMessage?chat_id=6528052400

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
StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 1 IoCs

resource	yara_rule
behavioral1/memory/2980-1-0x0000000000340000-0x0000000000370000-memory.dmp	family_stormkitty

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
Reads user/profile data of web browsers 2 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

Drops desktop.ini file(s) 8 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Local\5108e056167991f75bca8937ebe373a1\Admin@MUYDDIIS_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	Hik Bruteforce v2.exe
File created	C:\Users\Admin\AppData\Local\5108e056167991f75bca8937ebe373a1\Admin@MUYDDIIS_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	Hik Bruteforce v2.exe
File created	C:\Users\Admin\AppData\Local\5108e056167991f75bca8937ebe373a1\Admin@MUYDDIIS_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	Hik Bruteforce v2.exe
File opened for modification	C:\Users\Admin\AppData\Local\5108e056167991f75bca8937ebe373a1\Admin@MUYDDIIS_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	Hik Bruteforce v2.exe
File created	C:\Users\Admin\AppData\Local\5108e056167991f75bca8937ebe373a1\Admin@MUYDDIIS_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	Hik Bruteforce v2.exe
File opened for modification	C:\Users\Admin\AppData\Local\5108e056167991f75bca8937ebe373a1\Admin@MUYDDIIS_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	Hik Bruteforce v2.exe
File opened for modification	C:\Users\Admin\AppData\Local\5108e056167991f75bca8937ebe373a1\Admin@MUYDDIIS_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	Hik Bruteforce v2.exe
File created	C:\Users\Admin\AppData\Local\5108e056167991f75bca8937ebe373a1\Admin@MUYDDIIS_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	Hik Bruteforce v2.exe

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 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
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	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
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	Hik Bruteforce v2.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
1700	cmd.exe
1808	netsh.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2980	Hik Bruteforce v2.exe
2980	Hik Bruteforce v2.exe
2980	Hik Bruteforce v2.exe
2980	Hik Bruteforce v2.exe
2980	Hik Bruteforce v2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2980	Hik Bruteforce v2.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2980 wrote to memory of 1700	2980	Hik Bruteforce v2.exe	31
PID 2980 wrote to memory of 1700	2980	Hik Bruteforce v2.exe	31
PID 2980 wrote to memory of 1700	2980	Hik Bruteforce v2.exe	31
PID 2980 wrote to memory of 1700	2980	Hik Bruteforce v2.exe	31
PID 1700 wrote to memory of 1928	1700	cmd.exe	33
PID 1700 wrote to memory of 1928	1700	cmd.exe	33
PID 1700 wrote to memory of 1928	1700	cmd.exe	33
PID 1700 wrote to memory of 1928	1700	cmd.exe	33
PID 1700 wrote to memory of 1808	1700	cmd.exe	34
PID 1700 wrote to memory of 1808	1700	cmd.exe	34
PID 1700 wrote to memory of 1808	1700	cmd.exe	34
PID 1700 wrote to memory of 1808	1700	cmd.exe	34
PID 1700 wrote to memory of 1924	1700	cmd.exe	35
PID 1700 wrote to memory of 1924	1700	cmd.exe	35
PID 1700 wrote to memory of 1924	1700	cmd.exe	35
PID 1700 wrote to memory of 1924	1700	cmd.exe	35
PID 2980 wrote to memory of 2016	2980	Hik Bruteforce v2.exe	36
PID 2980 wrote to memory of 2016	2980	Hik Bruteforce v2.exe	36
PID 2980 wrote to memory of 2016	2980	Hik Bruteforce v2.exe	36
PID 2980 wrote to memory of 2016	2980	Hik Bruteforce v2.exe	36
PID 2016 wrote to memory of 2424	2016	cmd.exe	38
PID 2016 wrote to memory of 2424	2016	cmd.exe	38
PID 2016 wrote to memory of 2424	2016	cmd.exe	38
PID 2016 wrote to memory of 2424	2016	cmd.exe	38
PID 2016 wrote to memory of 808	2016	cmd.exe	39
PID 2016 wrote to memory of 808	2016	cmd.exe	39
PID 2016 wrote to memory of 808	2016	cmd.exe	39
PID 2016 wrote to memory of 808	2016	cmd.exe	39

C:\Users\Admin\AppData\Local\Temp\Hik Bruteforce v2.exe
"C:\Users\Admin\AppData\Local\Temp\Hik Bruteforce v2.exe"
1⤵
- Drops desktop.ini file(s)
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2980
- 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:1700
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1928
- - 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:1808
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1924
- 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:2016
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2424
- - 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:808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Wi-Fi Discovery

T1016.002

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/2980-0-0x000000007455E000-0x000000007455F000-memory.dmp

Filesize
4KB

Download
memory/2980-1-0x0000000000340000-0x0000000000370000-memory.dmp

Filesize
192KB

Download
memory/2980-2-0x0000000074550000-0x0000000074C3E000-memory.dmp

Filesize
6.9MB

Download
memory/2980-72-0x0000000074550000-0x0000000074C3E000-memory.dmp

Filesize
6.9MB

Download
memory/2980-76-0x000000007455E000-0x000000007455F000-memory.dmp

Filesize
4KB

Download