asyncrat | b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bc

General

Target

b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
Size

175KB
MD5

5a2a4482663e7e3de7b68e8a0ee24a80
SHA1

85ce16c42d7aa4aa2bf031c055d31903c524cd53
SHA256

b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bc
SHA512

de3d9cb013504d1dec053a3cd7492e33798c96c4b482f917d57c792155cf7da1788f49e25afd7606d4e5d9abc1866864e0072b08a9e00adafbb3ad9f3f4ad11d
SSDEEP

3072:Ne8p6ewdOIwQx76vK/bvTv0cU+lL/dMlZZUZ0b2gTIwARE+WpCc:R6ewwIwQJ6vKX0c5MlYZ0b2J

Score

10^/10

asyncrat stormkitty default discovery persistence phishing 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

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

Processes:

resource	yara_rule
behavioral2/memory/1808-1-0x0000000000AC0000-0x0000000000AF2000-memory.dmp	family_stormkitty

Stormkitty family
stormkitty
A potential corporate email address has been identified in the URL: WorldWindProResultsDate20241126122928AMSystemWindows10Pro64BitUsernameAdminCompNameUTKBEBLOLanguageenUSAntivirusNotinstalledHardwareCPU12thGenIntelRCoreTMi512400GPUMicrosoftBasicDisplayAdapterRAM16154MBHWIDUnknownPowerNoSystemBattery1Screen1280x720NetworkGatewayIP10.127.0.1InternalIP10.127.1.105ExternalIP181.215.176.83BSSID366cad25ded8DomainsinfoBankLogsNodataCryptoLogsNodataFreakyLogsNodataLogsBookmarks5SoftwareDeviceWindowsproductkeyDesktopscreenshotFileGrabberDatabasefiles6TelegramChannel@XSplinter
phishing
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) 8 IoCs

Processes:

b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Local\7abee2901e0553e3802fbc09e4cef48e\Admin@UTKBEBLO_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
File created	C:\Users\Admin\AppData\Local\7abee2901e0553e3802fbc09e4cef48e\Admin@UTKBEBLO_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
File created	C:\Users\Admin\AppData\Local\7abee2901e0553e3802fbc09e4cef48e\Admin@UTKBEBLO_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
File created	C:\Users\Admin\AppData\Local\7abee2901e0553e3802fbc09e4cef48e\Admin@UTKBEBLO_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
File created	C:\Users\Admin\AppData\Local\7abee2901e0553e3802fbc09e4cef48e\Admin@UTKBEBLO_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
File created	C:\Users\Admin\AppData\Local\7abee2901e0553e3802fbc09e4cef48e\Admin@UTKBEBLO_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
File opened for modification	C:\Users\Admin\AppData\Local\7abee2901e0553e3802fbc09e4cef48e\Admin@UTKBEBLO_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
File created	C:\Users\Admin\AppData\Local\7abee2901e0553e3802fbc09e4cef48e\Admin@UTKBEBLO_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

Processes:

flow	ioc
29	pastebin.com
30	pastebin.com

Looks up external IP address via web service 1 IoCs

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

Processes:

flow	ioc
20	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

Processes:

netsh.exenetsh.exe

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

Processes:

netsh.execmd.exechcp.comnetsh.exeb2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.execmd.exechcp.comfindstr.exe

description	ioc	Process
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	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.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

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

Processes:

cmd.exenetsh.exe

pid	Process
1920	cmd.exe
4444	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

Processes:

b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

Processes:

b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe

pid	Process
1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe

description	pid	Process
Token: SeDebugPrivilege	1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.execmd.execmd.exe

description	pid	Process	procid_target
PID 1808 wrote to memory of 1920	1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe	94
PID 1808 wrote to memory of 1920	1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe	94
PID 1808 wrote to memory of 1920	1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe	94
PID 1920 wrote to memory of 3516	1920	cmd.exe	96
PID 1920 wrote to memory of 3516	1920	cmd.exe	96
PID 1920 wrote to memory of 3516	1920	cmd.exe	96
PID 1920 wrote to memory of 4444	1920	cmd.exe	97
PID 1920 wrote to memory of 4444	1920	cmd.exe	97
PID 1920 wrote to memory of 4444	1920	cmd.exe	97
PID 1920 wrote to memory of 1864	1920	cmd.exe	98
PID 1920 wrote to memory of 1864	1920	cmd.exe	98
PID 1920 wrote to memory of 1864	1920	cmd.exe	98
PID 1808 wrote to memory of 2848	1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe	99
PID 1808 wrote to memory of 2848	1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe	99
PID 1808 wrote to memory of 2848	1808	b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe	99
PID 2848 wrote to memory of 2976	2848	cmd.exe	101
PID 2848 wrote to memory of 2976	2848	cmd.exe	101
PID 2848 wrote to memory of 2976	2848	cmd.exe	101
PID 2848 wrote to memory of 3968	2848	cmd.exe	102
PID 2848 wrote to memory of 3968	2848	cmd.exe	102
PID 2848 wrote to memory of 3968	2848	cmd.exe	102

C:\Users\Admin\AppData\Local\Temp\b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.exe
"C:\Users\Admin\AppData\Local\Temp\b2134a23d541a433c13f8b610c6fe0f79e4977f2a3cf4fdd32c2073771f212bcN.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:1808
- 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:1920
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3516
- - 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:4444
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1864
- 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:2848
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2976
- - 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:3968

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

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\7abee2901e0553e3802fbc09e4cef48e\Admin@UTKBEBLO_en-US\Browsers\Firefox\Bookmarks.txt

Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

Download Submit
C:\Users\Admin\AppData\Local\7abee2901e0553e3802fbc09e4cef48e\Admin@UTKBEBLO_en-US\System\Process.txt

Filesize
4KB

MD5
ae49b0076aa28db5e87071d7d1619159

SHA1
312424b0bb543978c8ca7e100fadfdfcf3b67355

SHA256
9208150e19042b8f415fdeb2221dee7b01efcc6bac3a70327071c974b040cefb

SHA512
2f7f76bafdd061ea9c8e62bfc040ba5c4d7ddb4e36f9f74c53bea8dd792061ea112cb2254e52a6246818114f250bd48d7830e0ecbebb5deab166b2d21a70ec37

Download Submit
C:\Users\Admin\AppData\Local\f832af90c23aa937f47d0b17db0c337a\msgid.dat

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/1808-3-0x00000000054B0000-0x0000000005516000-memory.dmp

Filesize
408KB

Download
memory/1808-0-0x000000007505E000-0x000000007505F000-memory.dmp

Filesize
4KB

Download
memory/1808-113-0x000000007505E000-0x000000007505F000-memory.dmp

Filesize
4KB

Download
memory/1808-2-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/1808-133-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/1808-149-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/1808-151-0x0000000006010000-0x00000000060A2000-memory.dmp

Filesize
584KB

Download
memory/1808-152-0x0000000006660000-0x0000000006C04000-memory.dmp

Filesize
5.6MB

Download
memory/1808-156-0x0000000006140000-0x000000000614A000-memory.dmp

Filesize
40KB

Download
memory/1808-1-0x0000000000AC0000-0x0000000000AF2000-memory.dmp

Filesize
200KB

Download
memory/1808-162-0x0000000006630000-0x0000000006642000-memory.dmp

Filesize
72KB

Download
memory/1808-187-0x0000000075050000-0x0000000075800000-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