asyncrat | 1d717f597012fc673e59c3cac36e6a7639216391c9d49ec40888d956c8a9fde9

General

Target

Server.exe
Size

175KB
MD5

56d4beb43df266fbce8158885fd14fe3
SHA1

d7bfc603689f35d26ab0061869393235396292dd
SHA256

1d717f597012fc673e59c3cac36e6a7639216391c9d49ec40888d956c8a9fde9
SHA512

3c2c0507f2b77832b37b013861c98d05fa9e28c149bda41ac6d9a474fdbef4a3cc4b4140801f3ed16adb0da58c65a62e3cb7016359bab3976fe6019bfdb60d8b
SSDEEP

3072:4e8F4hUIcmRtpGh0I/bv9Lv0cU+lL/dMlZZUZ0b2gTnwARE+WpCz:E4h3pRtEh0I90c5MlYZ0b2Q

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/4584-1-0x00000000003B0000-0x00000000003E2000-memory.dmp	family_stormkitty

Stormkitty family
stormkitty
A potential corporate email address has been identified in the URL: WorldWindProResultsDate2024122233114AMSystemWindows10EnterpriseLTSC64BitUsernameAdminCompNameWYKESHLMLanguageenUSAntivirusWindowsDefender.HardwareCPU12thGenIntelRCoreTMi512400GPUMicrosoftBasicDisplayAdapterRAM16157MBHWIDUnknownPowerNoSystemBattery1Screen1280x720NetworkGatewayIP10.127.0.1InternalIP10.127.0.92ExternalIP181.215.176.83BSSID42a1d7704c36DomainsinfoBankLogsNodataCryptoLogsNodataFreakyLogsNodataLogsBookmarks5SoftwareDeviceWindowsproductkeyDesktopscreenshotFileGrabberDatabasefiles4TelegramChannel@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\a80ca4fa9c3b639ae75cdf568ca4c174\Admin@WYKESHLM_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	Server.exe
File created	C:\Users\Admin\AppData\Local\a80ca4fa9c3b639ae75cdf568ca4c174\Admin@WYKESHLM_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	Server.exe
File created	C:\Users\Admin\AppData\Local\a80ca4fa9c3b639ae75cdf568ca4c174\Admin@WYKESHLM_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	Server.exe
File created	C:\Users\Admin\AppData\Local\a80ca4fa9c3b639ae75cdf568ca4c174\Admin@WYKESHLM_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	Server.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
26	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 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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Server.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

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
4608	cmd.exe
2188	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	Server.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	Server.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
4584	Server.exe
4584	Server.exe
4584	Server.exe
4584	Server.exe
4584	Server.exe
4584	Server.exe
4584	Server.exe
4584	Server.exe
4584	Server.exe
4584	Server.exe
4584	Server.exe
4584	Server.exe
4584	Server.exe
4584	Server.exe
4584	Server.exe
4584	Server.exe
4584	Server.exe
4584	Server.exe
4584	Server.exe
4584	Server.exe
4584	Server.exe
4584	Server.exe
4584	Server.exe
4584	Server.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4584	Server.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4584 wrote to memory of 4608	4584	Server.exe	100
PID 4584 wrote to memory of 4608	4584	Server.exe	100
PID 4584 wrote to memory of 4608	4584	Server.exe	100
PID 4608 wrote to memory of 1700	4608	cmd.exe	102
PID 4608 wrote to memory of 1700	4608	cmd.exe	102
PID 4608 wrote to memory of 1700	4608	cmd.exe	102
PID 4608 wrote to memory of 2188	4608	cmd.exe	103
PID 4608 wrote to memory of 2188	4608	cmd.exe	103
PID 4608 wrote to memory of 2188	4608	cmd.exe	103
PID 4608 wrote to memory of 1084	4608	cmd.exe	104
PID 4608 wrote to memory of 1084	4608	cmd.exe	104
PID 4608 wrote to memory of 1084	4608	cmd.exe	104
PID 4584 wrote to memory of 3888	4584	Server.exe	106
PID 4584 wrote to memory of 3888	4584	Server.exe	106
PID 4584 wrote to memory of 3888	4584	Server.exe	106
PID 3888 wrote to memory of 1300	3888	cmd.exe	108
PID 3888 wrote to memory of 1300	3888	cmd.exe	108
PID 3888 wrote to memory of 1300	3888	cmd.exe	108
PID 3888 wrote to memory of 2148	3888	cmd.exe	109
PID 3888 wrote to memory of 2148	3888	cmd.exe	109
PID 3888 wrote to memory of 2148	3888	cmd.exe	109

C:\Users\Admin\AppData\Local\Temp\Server.exe
"C:\Users\Admin\AppData\Local\Temp\Server.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:4584
- 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:4608
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1700
- - 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:2188
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1084
- 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:3888
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1300
- - 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:2148

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --string-annotations=is-enterprise-managed=no --field-trial-handle=4024,i,7725352229495460145,1654775800534747848,262144 --variations-seed-version --mojo-platform-channel-handle=3156 /prefetch:8
1⤵
PID:1180

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --string-annotations=is-enterprise-managed=no --field-trial-handle=1744,i,7725352229495460145,1654775800534747848,262144 --variations-seed-version --mojo-platform-channel-handle=3192 /prefetch:8
1⤵
PID:4548

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\51024e4dc8612aec4c97501264aff622\msgid.dat

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
C:\Users\Admin\AppData\Local\a80ca4fa9c3b639ae75cdf568ca4c174\Admin@WYKESHLM_en-US\Browsers\Firefox\Bookmarks.txt

Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

Download Submit
C:\Users\Admin\AppData\Local\a80ca4fa9c3b639ae75cdf568ca4c174\Admin@WYKESHLM_en-US\System\Process.txt

Filesize
4KB

MD5
e81329dce217cadf3130b24c59ef6312

SHA1
6005b9476eb989ab4d8944235b70a61b50cd04dd

SHA256
36429b14fa2d0c9d8a8ea50f7b1a0cee1ddcb5ca4dd72b413b7317b52b7ad7dd

SHA512
c10db6a1c2ee954d25f5fd069e4fd8095333d637801e8ac9c13fd55993597515ffcc0ab7155317b6bbe0a80b693d7fb84cb0feffcab7206ede09f714d1703a56

Download Submit
memory/4584-114-0x0000000074470000-0x0000000074C21000-memory.dmp

Filesize
7.7MB

Download
memory/4584-3-0x0000000004D90000-0x0000000004DF6000-memory.dmp

Filesize
408KB

Download
memory/4584-2-0x0000000074470000-0x0000000074C21000-memory.dmp

Filesize
7.7MB

Download
memory/4584-0-0x000000007447E000-0x000000007447F000-memory.dmp

Filesize
4KB

Download
memory/4584-113-0x000000007447E000-0x000000007447F000-memory.dmp

Filesize
4KB

Download
memory/4584-116-0x00000000058D0000-0x0000000005962000-memory.dmp

Filesize
584KB

Download
memory/4584-117-0x0000000005F20000-0x00000000064C6000-memory.dmp

Filesize
5.6MB

Download
memory/4584-119-0x0000000074470000-0x0000000074C21000-memory.dmp

Filesize
7.7MB

Download
memory/4584-122-0x0000000005B30000-0x0000000005B3A000-memory.dmp

Filesize
40KB

Download
memory/4584-1-0x00000000003B0000-0x00000000003E2000-memory.dmp

Filesize
200KB

Download
memory/4584-128-0x0000000074470000-0x0000000074C21000-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