asyncrat | 1f65a0e05f395d15e1f8abce4088f754b9298bed46e0adec52d3968699a60d32

General

Target

WorldWindClient.exe
Size

170KB
MD5

d72548d2438f524ed8ef0bfecd9f9648
SHA1

fd90c2bbff083e48d9b35a4301cb34b2985dd82d
SHA256

1f65a0e05f395d15e1f8abce4088f754b9298bed46e0adec52d3968699a60d32
SHA512

689be9bf13fbf7aa7c42f9733051b8cba0807086a1f8ab3337152930a37b70fa6dbae483f16fd931c99dfa5c30ee42942f8b6270d4e9598ba94f9fa87d34c68e
SSDEEP

3072:++STW8djpN6izj8mZwdJqutB+YDpqIPu/i9bVK2cBWH7Xy6+Wp7:j8XN6W8mmHPtppXPSi9b4W

Score

10^/10

asyncrat stormkitty default credential_access 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/bot7141308019:AAFvbuyi4cX6OCqTVfOYVARrVfYTpen7uoA/sendMessage?chat_id=6234857847

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
behavioral2/memory/2208-1-0x0000000000240000-0x0000000000270000-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 created	C:\Users\Admin\AppData\Local\b82b87cf34c3ca2d2a0b6fd09646285a\Admin@PVMNUDVD_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	WorldWindClient.exe
File created	C:\Users\Admin\AppData\Local\b82b87cf34c3ca2d2a0b6fd09646285a\Admin@PVMNUDVD_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	WorldWindClient.exe
File created	C:\Users\Admin\AppData\Local\b82b87cf34c3ca2d2a0b6fd09646285a\Admin@PVMNUDVD_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini	WorldWindClient.exe
File created	C:\Users\Admin\AppData\Local\b82b87cf34c3ca2d2a0b6fd09646285a\Admin@PVMNUDVD_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini	WorldWindClient.exe
File created	C:\Users\Admin\AppData\Local\b82b87cf34c3ca2d2a0b6fd09646285a\Admin@PVMNUDVD_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	WorldWindClient.exe
File opened for modification	C:\Users\Admin\AppData\Local\b82b87cf34c3ca2d2a0b6fd09646285a\Admin@PVMNUDVD_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	WorldWindClient.exe
File created	C:\Users\Admin\AppData\Local\b82b87cf34c3ca2d2a0b6fd09646285a\Admin@PVMNUDVD_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	WorldWindClient.exe
File opened for modification	C:\Users\Admin\AppData\Local\b82b87cf34c3ca2d2a0b6fd09646285a\Admin@PVMNUDVD_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\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
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 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	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

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
2952	cmd.exe
4200	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	WorldWindClient.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	WorldWindClient.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
2208	WorldWindClient.exe
2208	WorldWindClient.exe
2208	WorldWindClient.exe
2208	WorldWindClient.exe
2208	WorldWindClient.exe
2208	WorldWindClient.exe
2208	WorldWindClient.exe
2208	WorldWindClient.exe
2208	WorldWindClient.exe
2208	WorldWindClient.exe
2208	WorldWindClient.exe
2208	WorldWindClient.exe
2208	WorldWindClient.exe
2208	WorldWindClient.exe
2208	WorldWindClient.exe
2208	WorldWindClient.exe
2208	WorldWindClient.exe
2208	WorldWindClient.exe
2208	WorldWindClient.exe
2208	WorldWindClient.exe
2208	WorldWindClient.exe
2208	WorldWindClient.exe
2208	WorldWindClient.exe
2208	WorldWindClient.exe
2208	WorldWindClient.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2208	WorldWindClient.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2208 wrote to memory of 2952	2208	WorldWindClient.exe	92
PID 2208 wrote to memory of 2952	2208	WorldWindClient.exe	92
PID 2208 wrote to memory of 2952	2208	WorldWindClient.exe	92
PID 2952 wrote to memory of 4836	2952	cmd.exe	94
PID 2952 wrote to memory of 4836	2952	cmd.exe	94
PID 2952 wrote to memory of 4836	2952	cmd.exe	94
PID 2952 wrote to memory of 4200	2952	cmd.exe	95
PID 2952 wrote to memory of 4200	2952	cmd.exe	95
PID 2952 wrote to memory of 4200	2952	cmd.exe	95
PID 2952 wrote to memory of 960	2952	cmd.exe	96
PID 2952 wrote to memory of 960	2952	cmd.exe	96
PID 2952 wrote to memory of 960	2952	cmd.exe	96
PID 2208 wrote to memory of 3940	2208	WorldWindClient.exe	98
PID 2208 wrote to memory of 3940	2208	WorldWindClient.exe	98
PID 2208 wrote to memory of 3940	2208	WorldWindClient.exe	98
PID 3940 wrote to memory of 3424	3940	cmd.exe	100
PID 3940 wrote to memory of 3424	3940	cmd.exe	100
PID 3940 wrote to memory of 3424	3940	cmd.exe	100
PID 3940 wrote to memory of 1904	3940	cmd.exe	101
PID 3940 wrote to memory of 1904	3940	cmd.exe	101
PID 3940 wrote to memory of 1904	3940	cmd.exe	101

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:2208
- 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:2952
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4836
- - 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:4200
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    - System Location Discovery: System Language Discovery
    PID:960
- 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:3940
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3424
- - 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:1904

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\b82b87cf34c3ca2d2a0b6fd09646285a\Admin@PVMNUDVD_en-US\Browsers\Firefox\Bookmarks.txt

Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

Download Submit
C:\Users\Admin\AppData\Local\b82b87cf34c3ca2d2a0b6fd09646285a\Admin@PVMNUDVD_en-US\System\Process.txt

Filesize
4KB

MD5
30ea571f65b6e3887cab06d7839ee4c0

SHA1
23b4b8a8b38bf8b064b8f8c7984d8ccbac86819f

SHA256
9092fcb66c51f1ea3cba4361a9692e51983196cc2ff62a94bddd689290b49d75

SHA512
32a564fca51b579d21986407d80ca49d4258497cdacda9a858c3d43307737f36fc5705344afccae4977f1bd29a161f84dbc8928c83784ab01e90a4ef39cdb8eb

Download Submit
C:\Users\Admin\AppData\Local\bd837c7f1e2cc15479a647660ea146d1\msgid.dat

Filesize
2B

MD5
6ea9ab1baa0efb9e19094440c317e21b

SHA1
7719a1c782a1ba91c031a682a0a2f8658209adbf

SHA256
35135aaa6cc23891b40cb3f378c53a17a1127210ce60e125ccf03efcfdaec458

SHA512
a64c0e99969683e7224137b2726353ffd630fc15cceda1c75169daef65c9802a54dfebffa3902943044fe3273ccce95d0ddfff08fdbae388357a79ce891cfe38

Download Submit
memory/2208-150-0x0000000074B80000-0x0000000075330000-memory.dmp

Filesize
7.7MB

Download
memory/2208-3-0x0000000004C00000-0x0000000004C66000-memory.dmp

Filesize
408KB

Download
memory/2208-2-0x0000000074B80000-0x0000000075330000-memory.dmp

Filesize
7.7MB

Download
memory/2208-0-0x0000000074B8E000-0x0000000074B8F000-memory.dmp

Filesize
4KB

Download
memory/2208-151-0x0000000005640000-0x00000000056D2000-memory.dmp

Filesize
584KB

Download
memory/2208-152-0x0000000005C90000-0x0000000006234000-memory.dmp

Filesize
5.6MB

Download
memory/2208-156-0x0000000005870000-0x000000000587A000-memory.dmp

Filesize
40KB

Download
memory/2208-157-0x0000000074B8E000-0x0000000074B8F000-memory.dmp

Filesize
4KB

Download
memory/2208-1-0x0000000000240000-0x0000000000270000-memory.dmp

Filesize
192KB

Download
memory/2208-163-0x0000000005900000-0x0000000005912000-memory.dmp

Filesize
72KB

Download
memory/2208-186-0x0000000074B80000-0x0000000075330000-memory.dmp

Filesize
7.7MB

Download
memory/2208-189-0x0000000074B80000-0x0000000075330000-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