stormkitty | 788b02199a92e85072e007000ecc03098c2c40f74665159324a7be7e19a62f2e

General

Target

1216-60-0x0000000000400000-0x0000000000428000-memory.exe
Size

160KB
MD5

c93c224620bbeffcf10df8c07447c394
SHA1

b4770ce3def8a09b0bb7a4bc9a05150f8c8ac666
SHA256

788b02199a92e85072e007000ecc03098c2c40f74665159324a7be7e19a62f2e
SHA512

6cafb342c2a7095bc8a83e9a132261e480f5e361a0c51e210067ede559eda661d17ee948c46e5aed7db298532a307ae16ec05dc3cb27ab7ac7803f5ab2aaa9f8

Score

10^/10

stormkitty collection persistence 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
behavioral2/memory/4316-133-0x00000000009A0000-0x00000000009BA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\firebase = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\\\fishnets.exe"	1216-60-0x0000000000400000-0x0000000000428000-memory.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
31	icanhazip.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2924 set thread context of 4316	2924	1216-60-0x0000000000400000-0x0000000000428000-memory.exe	81

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	AppLaunch.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	AppLaunch.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2924	1216-60-0x0000000000400000-0x0000000000428000-memory.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4316	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2924	1216-60-0x0000000000400000-0x0000000000428000-memory.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2924 wrote to memory of 4316	2924	1216-60-0x0000000000400000-0x0000000000428000-memory.exe	81
PID 2924 wrote to memory of 4316	2924	1216-60-0x0000000000400000-0x0000000000428000-memory.exe	81
PID 2924 wrote to memory of 4316	2924	1216-60-0x0000000000400000-0x0000000000428000-memory.exe	81
PID 2924 wrote to memory of 4316	2924	1216-60-0x0000000000400000-0x0000000000428000-memory.exe	81
PID 2924 wrote to memory of 4316	2924	1216-60-0x0000000000400000-0x0000000000428000-memory.exe	81

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\1216-60-0x0000000000400000-0x0000000000428000-memory.exe
"C:\Users\Admin\AppData\Local\Temp\1216-60-0x0000000000400000-0x0000000000428000-memory.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2924
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  2⤵
  - Accesses Microsoft Outlook profiles
  - Checks processor information in registry
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4316

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4316-133-0x00000000009A0000-0x00000000009BA000-memory.dmp

Filesize
104KB

Download
memory/4316-134-0x0000000005210000-0x0000000005276000-memory.dmp

Filesize
408KB

Download
memory/4316-135-0x00000000011A0000-0x000000000123C000-memory.dmp

Filesize
624KB

Download

Analysis

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