stormkitty | 75883a7761887acd7afab7f2acc4f48fe72ff32577397a3c6786ded83db1e57b

Resubmissions

27-03-2023 10:22

230327-mepxrafa5v 10

04-01-2023 02:34

230104-c2x7jagh6t 10

04-01-2023 02:21

230104-cta22agh5v 10

Analysis

max time kernel
98s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
04-01-2023 02:21

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General

Target

ChMetamask.exe
Size

1.3MB
MD5

e7529d32d963da6df89e3ffc6b14cd08
SHA1

4a11070ee8c0030ffdcf299e2b49d180e1890f57
SHA256

75883a7761887acd7afab7f2acc4f48fe72ff32577397a3c6786ded83db1e57b
SHA512

35c220822e24eb8d5b5fef18fd2b7f57b73ab61102632007af89bbe4b9eaca814e817adf6fb0a830c08928cb50e649cdb2da1c5550797ff4b1b377e9ffa99156
SSDEEP

24576:HWiMngrdePNzQ0ZIxNXaV9x4IUgs36BUI2So5+jnzFoCaGApu8L:qgReFs0ZM0T+Sk6BU7HIFo7G98L

Score

10^/10

stormkitty spyware stealer

Malware Config

Signatures

StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2156-132-0x00000000009A0000-0x0000000000AF8000-memory.dmp	family_stormkitty

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
T1081
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
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

5 checkip.dyndns.org
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

ChMetamask.exe

description pid process

Token: SeDebugPrivilege 2156 ChMetamask.exe

flow	ioc
5	checkip.dyndns.org

description	pid	process
Token: SeDebugPrivilege	2156	ChMetamask.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

ChMetamask.execmd.execmd.exe

description	pid	process	target process
PID 2156 wrote to memory of 3988	2156	ChMetamask.exe	cmd.exe
PID 2156 wrote to memory of 3988	2156	ChMetamask.exe	cmd.exe
PID 3988 wrote to memory of 4372	3988	cmd.exe	chcp.com
PID 3988 wrote to memory of 4372	3988	cmd.exe	chcp.com
PID 3988 wrote to memory of 4804	3988	cmd.exe	netsh.exe
PID 3988 wrote to memory of 4804	3988	cmd.exe	netsh.exe
PID 3988 wrote to memory of 4892	3988	cmd.exe	findstr.exe
PID 3988 wrote to memory of 4892	3988	cmd.exe	findstr.exe
PID 2156 wrote to memory of 4332	2156	ChMetamask.exe	cmd.exe
PID 2156 wrote to memory of 4332	2156	ChMetamask.exe	cmd.exe
PID 4332 wrote to memory of 3120	4332	cmd.exe	chcp.com
PID 4332 wrote to memory of 3120	4332	cmd.exe	chcp.com
PID 4332 wrote to memory of 4328	4332	cmd.exe	netsh.exe
PID 4332 wrote to memory of 4328	4332	cmd.exe	netsh.exe
PID 4332 wrote to memory of 3436	4332	cmd.exe	findstr.exe
PID 4332 wrote to memory of 3436	4332	cmd.exe	findstr.exe

C:\Users\Admin\AppData\Local\Temp\ChMetamask.exe
"C:\Users\Admin\AppData\Local\Temp\ChMetamask.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2156

C:\Windows\SYSTEM32\cmd.exe
"cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
2⤵
- Suspicious use of WriteProcessMemory
PID:3988

C:\Windows\system32\chcp.com
chcp 65001
3⤵
PID:4372

C:\Windows\system32\netsh.exe
netsh wlan show profile
3⤵
PID:4804

C:\Windows\system32\findstr.exe
findstr All
3⤵
PID:4892

C:\Windows\SYSTEM32\cmd.exe
"cmd.exe" /C chcp 65001 && netsh wlan show profile name=65001 key=clear | findstr Key
2⤵
- Suspicious use of WriteProcessMemory
PID:4332

C:\Windows\system32\chcp.com
chcp 65001
3⤵
PID:3120

C:\Windows\system32\netsh.exe
netsh wlan show profile name=65001 key=clear
3⤵
PID:4328

C:\Windows\system32\findstr.exe
findstr Key
3⤵
PID:3436

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Web Service

T1102

Impact

Replay Monitor

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Downloads

memory/2156-132-0x00000000009A0000-0x0000000000AF8000-memory.dmp

Filesize
1.3MB

Download
memory/2156-133-0x0000000002BD0000-0x0000000002BEA000-memory.dmp

Filesize
104KB

Download
memory/2156-134-0x00007FF871800000-0x00007FF8722C1000-memory.dmp

Filesize
10.8MB

Download
memory/2156-135-0x00007FF871800000-0x00007FF8722C1000-memory.dmp

Filesize
10.8MB

Download
memory/2156-145-0x000000001DCC0000-0x000000001DCFC000-memory.dmp

Filesize
240KB

Download
memory/2156-144-0x000000001DC60000-0x000000001DC72000-memory.dmp

Filesize
72KB

Download
memory/3120-141-0x0000000000000000-mapping.dmp

Download
memory/3436-143-0x0000000000000000-mapping.dmp

Download
memory/3988-136-0x0000000000000000-mapping.dmp

Download
memory/4328-142-0x0000000000000000-mapping.dmp

Download
memory/4332-140-0x0000000000000000-mapping.dmp

Download
memory/4372-137-0x0000000000000000-mapping.dmp

Download
memory/4804-138-0x0000000000000000-mapping.dmp

Download
memory/4892-139-0x0000000000000000-mapping.dmp

Download