stormkitty | bd6d1b130e5702e68f7940f58df1b1cf53b29390dfe0e4424dff567d3d2330c5

General

Target

4532-143-0x0000000000400000-0x0000000000425000-memory.exe
Size

148KB
MD5

735f44c1c75f9ad2268ec7f15b5effee
SHA1

d2956ee07da679bff71f1be4364e5abdcd9bee85
SHA256

bd6d1b130e5702e68f7940f58df1b1cf53b29390dfe0e4424dff567d3d2330c5
SHA512

7f8e7c24f840677fbeee72aacfc482b100f52fcb0b961478ae127230fae143d9ac57ddbba30cabaf1df44d62cb8941fc1b6a03ebc57aa35316ef8a58220038c6
SSDEEP

1536:LH7w/Zws3kTnvzbhNBPmxue2SRQg0dkEwiqoVioMZYCM99l8INLE2d7tXQQCy:LHgZTkLfhjFSiO3o6ZYC7C/dSI

Score

10^/10

stormkitty collection stealer

Malware Config

Signatures

StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 4 IoCs

resource	yara_rule
behavioral1/memory/936-60-0x00000000000A4F6E-mapping.dmp	family_stormkitty
behavioral1/memory/936-59-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/936-62-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/936-64-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\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
3	icanhazip.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2020 set thread context of 936	2020	4532-143-0x0000000000400000-0x0000000000425000-memory.exe	28

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
2020	4532-143-0x0000000000400000-0x0000000000425000-memory.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	936	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2020	4532-143-0x0000000000400000-0x0000000000425000-memory.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2020 wrote to memory of 936	2020	4532-143-0x0000000000400000-0x0000000000425000-memory.exe	28
PID 2020 wrote to memory of 936	2020	4532-143-0x0000000000400000-0x0000000000425000-memory.exe	28
PID 2020 wrote to memory of 936	2020	4532-143-0x0000000000400000-0x0000000000425000-memory.exe	28
PID 2020 wrote to memory of 936	2020	4532-143-0x0000000000400000-0x0000000000425000-memory.exe	28
PID 2020 wrote to memory of 936	2020	4532-143-0x0000000000400000-0x0000000000425000-memory.exe	28
PID 2020 wrote to memory of 936	2020	4532-143-0x0000000000400000-0x0000000000425000-memory.exe	28
PID 2020 wrote to memory of 936	2020	4532-143-0x0000000000400000-0x0000000000425000-memory.exe	28
PID 2020 wrote to memory of 936	2020	4532-143-0x0000000000400000-0x0000000000425000-memory.exe	28
PID 2020 wrote to memory of 936	2020	4532-143-0x0000000000400000-0x0000000000425000-memory.exe	28

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\4532-143-0x0000000000400000-0x0000000000425000-memory.exe
"C:\Users\Admin\AppData\Local\Temp\4532-143-0x0000000000400000-0x0000000000425000-memory.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2020
- 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:936

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/936-57-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/936-59-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/936-62-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/936-64-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/2020-56-0x00000000756B1000-0x00000000756B3000-memory.dmp

Filesize
8KB

Download

Analysis

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