asyncrat | 210039a7541469a0c16e58bab514a46e7dcbd9477561ddd87c74ca3a2bf9f56c

General

Target

WorldWindClient.exe
Size

170KB
MD5

c4eced1e43e2c360d928449132c948b9
SHA1

6cd3c79209cae7dcc8cdb7d699474154bd1e7924
SHA256

cf5b955e938443cc0f2832d3e4fc91c8e3b12e8eed06d8da8ef90f3edcaf38e4
SHA512

82b2ce6c2cd628327d64acd4c25402f686ead1fb26974b695fe82af44fb4d89b9f1df84ea205800f2aabb20c405e48fb04ed5a4e824751a98fa4f4707c755608
SSDEEP

3072:++STW8djpN6izj8mZwdJqutB+YDpqIPu/i9bVK2cSJn6+Wp7:j8XN6W8mmHPtppXPSi9b48J

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/bot5643956199:AAEDZ9-VVWIakGscdtOjNw0Ko3RTPrSgVpc/sendMessage?chat_id=1490686308

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
behavioral2/memory/1644-1-0x00000000002B0000-0x00000000002E0000-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) 7 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\4266da6975088a8af8b382fd371a4d3d\Admin@UUHJKMQK_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	WorldWindClient.exe
File created	C:\Users\Admin\AppData\Local\4266da6975088a8af8b382fd371a4d3d\Admin@UUHJKMQK_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	WorldWindClient.exe
File created	C:\Users\Admin\AppData\Local\4266da6975088a8af8b382fd371a4d3d\Admin@UUHJKMQK_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini	WorldWindClient.exe
File created	C:\Users\Admin\AppData\Local\4266da6975088a8af8b382fd371a4d3d\Admin@UUHJKMQK_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini	WorldWindClient.exe
File created	C:\Users\Admin\AppData\Local\4266da6975088a8af8b382fd371a4d3d\Admin@UUHJKMQK_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	WorldWindClient.exe
File opened for modification	C:\Users\Admin\AppData\Local\4266da6975088a8af8b382fd371a4d3d\Admin@UUHJKMQK_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	WorldWindClient.exe
File created	C:\Users\Admin\AppData\Local\4266da6975088a8af8b382fd371a4d3d\Admin@UUHJKMQK_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	WorldWindClient.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
10	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	WorldWindClient.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	cmd.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com

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
1968	netsh.exe
384	cmd.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	WorldWindClient.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	WorldWindClient.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
1644	WorldWindClient.exe
1644	WorldWindClient.exe
1644	WorldWindClient.exe
1644	WorldWindClient.exe
1644	WorldWindClient.exe
1644	WorldWindClient.exe
1644	WorldWindClient.exe
1644	WorldWindClient.exe
1644	WorldWindClient.exe
1644	WorldWindClient.exe
1644	WorldWindClient.exe
1644	WorldWindClient.exe
1644	WorldWindClient.exe
1644	WorldWindClient.exe
1644	WorldWindClient.exe
1644	WorldWindClient.exe
1644	WorldWindClient.exe
1644	WorldWindClient.exe
1644	WorldWindClient.exe
1644	WorldWindClient.exe
1644	WorldWindClient.exe
1644	WorldWindClient.exe
1644	WorldWindClient.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1644	WorldWindClient.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1644 wrote to memory of 384	1644	WorldWindClient.exe	87
PID 1644 wrote to memory of 384	1644	WorldWindClient.exe	87
PID 1644 wrote to memory of 384	1644	WorldWindClient.exe	87
PID 384 wrote to memory of 972	384	cmd.exe	89
PID 384 wrote to memory of 972	384	cmd.exe	89
PID 384 wrote to memory of 972	384	cmd.exe	89
PID 384 wrote to memory of 1968	384	cmd.exe	90
PID 384 wrote to memory of 1968	384	cmd.exe	90
PID 384 wrote to memory of 1968	384	cmd.exe	90
PID 384 wrote to memory of 8	384	cmd.exe	91
PID 384 wrote to memory of 8	384	cmd.exe	91
PID 384 wrote to memory of 8	384	cmd.exe	91
PID 1644 wrote to memory of 3424	1644	WorldWindClient.exe	92
PID 1644 wrote to memory of 3424	1644	WorldWindClient.exe	92
PID 1644 wrote to memory of 3424	1644	WorldWindClient.exe	92
PID 3424 wrote to memory of 4028	3424	cmd.exe	94
PID 3424 wrote to memory of 4028	3424	cmd.exe	94
PID 3424 wrote to memory of 4028	3424	cmd.exe	94
PID 3424 wrote to memory of 2660	3424	cmd.exe	95
PID 3424 wrote to memory of 2660	3424	cmd.exe	95
PID 3424 wrote to memory of 2660	3424	cmd.exe	95

C:\Users\Admin\AppData\Local\Temp\WorldWindClient.exe
"C:\Users\Admin\AppData\Local\Temp\WorldWindClient.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:1644
- 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:384
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:972
- - 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:1968
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    - System Location Discovery: System Language Discovery
    PID:8
- 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:3424
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4028
- - 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:2660

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\2355ccbe4f626dcbfef01c2eaa8fc9a9\msgid.dat

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
C:\Users\Admin\AppData\Local\4266da6975088a8af8b382fd371a4d3d\Admin@UUHJKMQK_en-US\Browsers\Firefox\Bookmarks.txt

Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

Download Submit
C:\Users\Admin\AppData\Local\4266da6975088a8af8b382fd371a4d3d\Admin@UUHJKMQK_en-US\System\Process.txt

Filesize
4KB

MD5
3186bd47695e6edee946d4892397afac

SHA1
c98213ff375e6f6132b14287ad2d1e3502f029e3

SHA256
687eacb05f0c21fb2f9cb32c15f8c20bd6142461b20bc2a287340a314ac5efc5

SHA512
29a6991df2738c562f9e8a1b1e7f38c8b899d2cd4f9c0ff73afbe75b2184b0a8da0ea87d6905c9d86df37ac804e680716f6ee6b2ea254947cdf5da52fe83d301

Download Submit
memory/1644-3-0x0000000004D90000-0x0000000004DF6000-memory.dmp

Filesize
408KB

Download
memory/1644-0-0x0000000074D7E000-0x0000000074D7F000-memory.dmp

Filesize
4KB

Download
memory/1644-127-0x0000000074D7E000-0x0000000074D7F000-memory.dmp

Filesize
4KB

Download
memory/1644-2-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/1644-146-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/1644-148-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/1644-149-0x00000000057E0000-0x0000000005872000-memory.dmp

Filesize
584KB

Download
memory/1644-150-0x0000000005E30000-0x00000000063D4000-memory.dmp

Filesize
5.6MB

Download
memory/1644-154-0x00000000058C0000-0x00000000058CA000-memory.dmp

Filesize
40KB

Download
memory/1644-1-0x00000000002B0000-0x00000000002E0000-memory.dmp

Filesize
192KB

Download
memory/1644-160-0x0000000074D70000-0x0000000075520000-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