stormkitty | f6a0a04cd3557910ae08dab46f00c96c83579de7716e925b533c25162ff2de88

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-01-2025 19:23

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General

Target

Yandex.exe
Size

316KB
MD5

74a53d4f5be3be53932f861a212b4120
SHA1

7ef1acc4dc0f5cd6941d2ca38defdaa3c03d077f
SHA256

f6a0a04cd3557910ae08dab46f00c96c83579de7716e925b533c25162ff2de88
SHA512

9e90b258ea794bb5c4a2c1608afedc39a2c0e98b66d8f930c6b509d147c79621ba6664f57ee862572deebb50c67f7bcd077062b5ce8ba33f98e417ec37250b65
SSDEEP

6144:t+Vr2RFMVrqcinHAWnVjpTaB822Z9rra97TQLwtI6TS:hRQrqXZVIaE9ewtjS

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

resource	yara_rule
behavioral1/memory/2172-1-0x0000000000F70000-0x0000000000FBE000-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
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001

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	Yandex.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	Yandex.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2172	Yandex.exe
2172	Yandex.exe
2172	Yandex.exe
2172	Yandex.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2172	Yandex.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2172 wrote to memory of 2900	2172	Yandex.exe	32
PID 2172 wrote to memory of 2900	2172	Yandex.exe	32
PID 2172 wrote to memory of 2900	2172	Yandex.exe	32

C:\Users\Admin\AppData\Local\Temp\Yandex.exe
"C:\Users\Admin\AppData\Local\Temp\Yandex.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2172
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2172 -s 860
  2⤵
  PID:2900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2172-0-0x000007FEF5FE3000-0x000007FEF5FE4000-memory.dmp

Filesize
4KB

Download
memory/2172-1-0x0000000000F70000-0x0000000000FBE000-memory.dmp

Filesize
312KB

Download
memory/2172-20-0x000007FEF5FE0000-0x000007FEF69CC000-memory.dmp

Filesize
9.9MB

Download
memory/2172-21-0x000007FEF5FE0000-0x000007FEF69CC000-memory.dmp

Filesize
9.9MB

Download
memory/2172-25-0x000007FEF5FE0000-0x000007FEF69CC000-memory.dmp

Filesize
9.9MB

Download