stormkitty | 644f959d3c5ef1bea63eadb769d87a773ad66f41a9b27ffa42ae7847ca43e149

Analysis

max time kernel
150s
max time network
112s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
06-03-2023 09:09

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General

Target

4404-174-0x0000000000400000-0x0000000000422000-memory.exe
Size

136KB
MD5

2dc19f3fa4ee28fec3ec33684d4e7063
SHA1

fd98918f8a26b73424459aab9cc4f83401a0e325
SHA256

644f959d3c5ef1bea63eadb769d87a773ad66f41a9b27ffa42ae7847ca43e149
SHA512

7d61690877cc6535f38e5900631488cd879ccbdc7cc2fbe817fef076bb416590c898d196eeaceef952669faa146203b25853609607417767c34881b315886356
SSDEEP

1536:7M/w/Zws3kTnvzbhNBPmxue2SRQg0dkEwiqoVioZkcOqJ40eZgYAv:7M0ZTkLfhjFSiO3o3kcqZZG

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/4724-135-0x0000000000D40000-0x0000000000D5A000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\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
28	icanhazip.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1940 set thread context of 4724	1940	4404-174-0x0000000000400000-0x0000000000422000-memory.exe	88

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	4724	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1940	4404-174-0x0000000000400000-0x0000000000422000-memory.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1940 wrote to memory of 4724	1940	4404-174-0x0000000000400000-0x0000000000422000-memory.exe	88
PID 1940 wrote to memory of 4724	1940	4404-174-0x0000000000400000-0x0000000000422000-memory.exe	88
PID 1940 wrote to memory of 4724	1940	4404-174-0x0000000000400000-0x0000000000422000-memory.exe	88
PID 1940 wrote to memory of 4724	1940	4404-174-0x0000000000400000-0x0000000000422000-memory.exe	88
PID 1940 wrote to memory of 4724	1940	4404-174-0x0000000000400000-0x0000000000422000-memory.exe	88

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\4404-174-0x0000000000400000-0x0000000000422000-memory.exe
"C:\Users\Admin\AppData\Local\Temp\4404-174-0x0000000000400000-0x0000000000422000-memory.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1940
- 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:4724

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/4724-135-0x0000000000D40000-0x0000000000D5A000-memory.dmp

Filesize
104KB

Download
memory/4724-136-0x00000000055D0000-0x0000000005636000-memory.dmp

Filesize
408KB

Download
memory/4724-137-0x0000000005E60000-0x0000000005EFC000-memory.dmp

Filesize
624KB

Download