stormkitty | 1bc75cf24c2ab70e4cd6c98ffe69eaeae47e9bd90b9e0f5a2bf97bff553f85cb

Analysis

max time kernel
151s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
12/10/2022, 15:56

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General

Target

1bc75cf24c2ab70e4cd6c98ffe69eaeae47e9bd90b9e0f5a2bf97bff553f85cb.exe
Size

136KB
MD5

66b734e0d570c5cb3719c2ae3799fb9f
SHA1

eb57c70683f468b24f1ad22fa11738cbf59b76d9
SHA256

1bc75cf24c2ab70e4cd6c98ffe69eaeae47e9bd90b9e0f5a2bf97bff553f85cb
SHA512

6f6b00bf580ba92ce2b6c160cdaf1067d8c1c3adf895baf52b4c6ab6647409653f2680d624dc738a67f10b8a4cf9799fb63f91872171e9f2de23010470c46242
SSDEEP

1536:t/Zws3kTnvzbhNBPmxue2SRQg0dkEwiqoViokHdJQwFrXjm3C:JZTkLfhjFSiO3o6/FHIC

Score

10^/10

stormkitty collection 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/1336-135-0x0000000000780000-0x000000000079A000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.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
11	icanhazip.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3640 set thread context of 1336	3640	1bc75cf24c2ab70e4cd6c98ffe69eaeae47e9bd90b9e0f5a2bf97bff553f85cb.exe	82

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

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1336	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3640	1bc75cf24c2ab70e4cd6c98ffe69eaeae47e9bd90b9e0f5a2bf97bff553f85cb.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3640 wrote to memory of 1336	3640	1bc75cf24c2ab70e4cd6c98ffe69eaeae47e9bd90b9e0f5a2bf97bff553f85cb.exe	82
PID 3640 wrote to memory of 1336	3640	1bc75cf24c2ab70e4cd6c98ffe69eaeae47e9bd90b9e0f5a2bf97bff553f85cb.exe	82
PID 3640 wrote to memory of 1336	3640	1bc75cf24c2ab70e4cd6c98ffe69eaeae47e9bd90b9e0f5a2bf97bff553f85cb.exe	82
PID 3640 wrote to memory of 1336	3640	1bc75cf24c2ab70e4cd6c98ffe69eaeae47e9bd90b9e0f5a2bf97bff553f85cb.exe	82
PID 3640 wrote to memory of 1336	3640	1bc75cf24c2ab70e4cd6c98ffe69eaeae47e9bd90b9e0f5a2bf97bff553f85cb.exe	82

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\1bc75cf24c2ab70e4cd6c98ffe69eaeae47e9bd90b9e0f5a2bf97bff553f85cb.exe
"C:\Users\Admin\AppData\Local\Temp\1bc75cf24c2ab70e4cd6c98ffe69eaeae47e9bd90b9e0f5a2bf97bff553f85cb.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3640
- 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:1336

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/1336-135-0x0000000000780000-0x000000000079A000-memory.dmp

Filesize
104KB

Download
memory/1336-136-0x0000000004D60000-0x0000000004DC6000-memory.dmp

Filesize
408KB

Download
memory/1336-137-0x00000000057F0000-0x000000000588C000-memory.dmp

Filesize
624KB

Download