asyncrat | 87af58ee2234066b04ba729e1ab44c79fe11580ad013b99d8d2de5840c4fcd9b

Reason

Machine shutdown

General

Target

test.exe
Size

175KB
MD5

4c31eaea8bf74ee12237d7f6220d0a04
SHA1

96d9628b899c81062943d82c0158972eeeaa7861
SHA256

87af58ee2234066b04ba729e1ab44c79fe11580ad013b99d8d2de5840c4fcd9b
SHA512

bec8e74fe6059c19204d75f1c4bf2c0cbe0043078b418d500ce502cbd88318d334d930dba69a9e21364cb8efdf4fb6373000d9fe7b8f054ce7c3d6ae84287542
SSDEEP

3072:he8F4hUIcmRtpGh0I/bv9Lv0cU+lL/dMlZZUZ0b2gTGnwARE+WpCz:B4h3pRtEh0I90c5MlYZ0b2jN

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

resource	yara_rule
behavioral1/memory/944-1-0x0000000000330000-0x0000000000362000-memory.dmp	family_stormkitty

Stormkitty family
stormkitty
A potential corporate email address has been identified in the URL: WorldWindProResultsDate2024122233320AMSystemWindows10EnterpriseLTSC64BitUsernameAdminCompNameWIJCJEAGLanguageenUSAntivirusWindowsDefender.HardwareCPU12thGenIntelRCoreTMi512400GPUMicrosoftBasicDisplayAdapterRAM16157MBHWIDUnknownPowerNoSystemBattery1Screen1280x720NetworkGatewayIP10.127.0.1InternalIP10.127.1.102ExternalIP181.215.176.83BSSID8aaf63f6a801DomainsinfoBankLogsNodataCryptoLogsNodataFreakyLogsNodataLogsBookmarks5SoftwareDeviceWindowsproductkeyDesktopscreenshotFileGrabberDatabasefiles4TelegramChannel@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) 4 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\5d679849c361d478e7e469655cbcc5e8\Admin@WIJCJEAG_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	test.exe
File created	C:\Users\Admin\AppData\Local\5d679849c361d478e7e469655cbcc5e8\Admin@WIJCJEAG_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	test.exe
File created	C:\Users\Admin\AppData\Local\5d679849c361d478e7e469655cbcc5e8\Admin@WIJCJEAG_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	test.exe
File created	C:\Users\Admin\AppData\Local\5d679849c361d478e7e469655cbcc5e8\Admin@WIJCJEAG_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	test.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
19	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 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
Key opened	\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	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	test.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
1276	cmd.exe
1212	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	test.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	test.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "108"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271"	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
4532	notepad.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
944	test.exe
944	test.exe
944	test.exe
944	test.exe
944	test.exe
944	test.exe
944	test.exe
944	test.exe
944	test.exe
944	test.exe
944	test.exe
944	test.exe
944	test.exe
944	test.exe
944	test.exe
944	test.exe
944	test.exe
944	test.exe
944	test.exe
944	test.exe
944	test.exe
944	test.exe
944	test.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	944	test.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4532	notepad.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4536	LogonUI.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 944 wrote to memory of 1276	944	test.exe	87
PID 944 wrote to memory of 1276	944	test.exe	87
PID 944 wrote to memory of 1276	944	test.exe	87
PID 1276 wrote to memory of 924	1276	cmd.exe	89
PID 1276 wrote to memory of 924	1276	cmd.exe	89
PID 1276 wrote to memory of 924	1276	cmd.exe	89
PID 1276 wrote to memory of 1212	1276	cmd.exe	90
PID 1276 wrote to memory of 1212	1276	cmd.exe	90
PID 1276 wrote to memory of 1212	1276	cmd.exe	90
PID 1276 wrote to memory of 3304	1276	cmd.exe	91
PID 1276 wrote to memory of 3304	1276	cmd.exe	91
PID 1276 wrote to memory of 3304	1276	cmd.exe	91
PID 944 wrote to memory of 2016	944	test.exe	93
PID 944 wrote to memory of 2016	944	test.exe	93
PID 944 wrote to memory of 2016	944	test.exe	93
PID 2016 wrote to memory of 1608	2016	cmd.exe	95
PID 2016 wrote to memory of 1608	2016	cmd.exe	95
PID 2016 wrote to memory of 1608	2016	cmd.exe	95
PID 2016 wrote to memory of 4892	2016	cmd.exe	96
PID 2016 wrote to memory of 4892	2016	cmd.exe	96
PID 2016 wrote to memory of 4892	2016	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\test.exe
"C:\Users\Admin\AppData\Local\Temp\test.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:944
- 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:1276
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:924
- - 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:1212
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3304
- 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:1608
- - 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:4892

C:\Windows\System32\notepad.exe
"C:\Windows\System32\notepad.exe" "C:\Users\Admin\Desktop\SplitDisable.ps1"
1⤵
- Opens file in notepad (likely ransom note)
- Suspicious use of FindShellTrayWindow
PID:4532

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa3a21055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:4536

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\5d679849c361d478e7e469655cbcc5e8\Admin@WIJCJEAG_en-US\System\Process.txt

Filesize
4KB

MD5
462ba29147ebd93c158989352027ff3c

SHA1
25de6dba69fcce3600e9b234d016ca06b4bdb482

SHA256
5460e9e8a796cd6a4274fe967d4eef21a0be4535cc22bdb399c25c441c712bf6

SHA512
c1266c5687b194cd3694228798da1d8a17df033e6b6292489a7427765c19439ee19a44aec0bee87d3aeadee5358b99323bbaa1565c23882c8ccdda6c37aa7efb

Download Submit
C:\Users\Admin\AppData\Local\b8d7fc03a6717c9c3d6ec6ae0e0b8848\msgid.dat

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/944-105-0x0000000005850000-0x00000000058E2000-memory.dmp

Filesize
584KB

Download
memory/944-3-0x0000000004E50000-0x0000000004EB6000-memory.dmp

Filesize
408KB

Download
memory/944-2-0x00000000749A0000-0x0000000075151000-memory.dmp

Filesize
7.7MB

Download
memory/944-103-0x00000000749A0000-0x0000000075151000-memory.dmp

Filesize
7.7MB

Download
memory/944-0-0x00000000749AE000-0x00000000749AF000-memory.dmp

Filesize
4KB

Download
memory/944-106-0x0000000005EA0000-0x0000000006446000-memory.dmp

Filesize
5.6MB

Download
memory/944-108-0x00000000749AE000-0x00000000749AF000-memory.dmp

Filesize
4KB

Download
memory/944-111-0x00000000749A0000-0x0000000075151000-memory.dmp

Filesize
7.7MB

Download
memory/944-112-0x0000000005A90000-0x0000000005A9A000-memory.dmp

Filesize
40KB

Download
memory/944-1-0x0000000000330000-0x0000000000362000-memory.dmp

Filesize
200KB

Download
memory/944-118-0x00000000749A0000-0x0000000075151000-memory.dmp

Filesize
7.7MB

Download
memory/944-119-0x00000000749A0000-0x0000000075151000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

Errors

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads