stormkitty | e88a5e6bdede20e8874eb9570e626dd84181349050da2d2108213cbe10f22356

Analysis

max time kernel
150s
max time network
56s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
15-08-2022 06:54

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General

Target

3096-160-0x0000000000400000-0x0000000000425000-memory.exe
Size

148KB
MD5

0a9715a586d2269fa1c5886a81619e12
SHA1

3fe6173dfb1f5ba7cf7a9f6637387662fad0809a
SHA256

e88a5e6bdede20e8874eb9570e626dd84181349050da2d2108213cbe10f22356
SHA512

3b9527fd26c4a2ab672c5266a549ac1c862e3bcd3b6a517f7aaa00456230ec0a4df9dcfa23834d38ae243cf977c3718b9aee322d443d32d29b705145f2d64066

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/2508-135-0x0000000000D00000-0x0000000000D1A000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1502147629-2175634256-330282290-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1502147629-2175634256-330282290-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1502147629-2175634256-330282290-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\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
1	icanhazip.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4880 set thread context of 2508	4880	3096-160-0x0000000000400000-0x0000000000425000-memory.exe	78

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 behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4880	3096-160-0x0000000000400000-0x0000000000425000-memory.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2508	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4880	3096-160-0x0000000000400000-0x0000000000425000-memory.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4880 wrote to memory of 2508	4880	3096-160-0x0000000000400000-0x0000000000425000-memory.exe	78
PID 4880 wrote to memory of 2508	4880	3096-160-0x0000000000400000-0x0000000000425000-memory.exe	78
PID 4880 wrote to memory of 2508	4880	3096-160-0x0000000000400000-0x0000000000425000-memory.exe	78
PID 4880 wrote to memory of 2508	4880	3096-160-0x0000000000400000-0x0000000000425000-memory.exe	78
PID 4880 wrote to memory of 2508	4880	3096-160-0x0000000000400000-0x0000000000425000-memory.exe	78

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1502147629-2175634256-330282290-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1502147629-2175634256-330282290-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\3096-160-0x0000000000400000-0x0000000000425000-memory.exe
"C:\Users\Admin\AppData\Local\Temp\3096-160-0x0000000000400000-0x0000000000425000-memory.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4880
- 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:2508

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/2508-135-0x0000000000D00000-0x0000000000D1A000-memory.dmp

Filesize
104KB

Download
memory/2508-136-0x0000000005240000-0x00000000052A6000-memory.dmp

Filesize
408KB

Download
memory/2508-137-0x0000000005B50000-0x0000000005BEC000-memory.dmp

Filesize
624KB

Download