stormkitty | 4c05eccdf631718494acad0f088c54be2d1c13ec3e42e6ce21783a83fd3561b4

General

Target

4736-137-0x0000000000400000-0x0000000000421000-memory.exe
Size

132KB
MD5

750aaf92bc7e94e6e32005c92532b1cc
SHA1

94f5051471090e7873eb40f874b0fe25066a3ba3
SHA256

4c05eccdf631718494acad0f088c54be2d1c13ec3e42e6ce21783a83fd3561b4
SHA512

3aa36d3bba46ab02f762b39e707674278aab4bc60c3089f230b7afeabd3b8755d73fbce5e6d371258206d0f924805c43bffaed521b5deecc2a20b3e84486017b

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/1328-59-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/1328-60-0x00000000000A4F6E-mapping.dmp	family_stormkitty
behavioral1/memory/1328-62-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/1328-64-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\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 1420 set thread context of 1328	1420	4736-137-0x0000000000400000-0x0000000000421000-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 use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1328	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1420	4736-137-0x0000000000400000-0x0000000000421000-memory.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1420 wrote to memory of 1328	1420	4736-137-0x0000000000400000-0x0000000000421000-memory.exe	28
PID 1420 wrote to memory of 1328	1420	4736-137-0x0000000000400000-0x0000000000421000-memory.exe	28
PID 1420 wrote to memory of 1328	1420	4736-137-0x0000000000400000-0x0000000000421000-memory.exe	28
PID 1420 wrote to memory of 1328	1420	4736-137-0x0000000000400000-0x0000000000421000-memory.exe	28
PID 1420 wrote to memory of 1328	1420	4736-137-0x0000000000400000-0x0000000000421000-memory.exe	28
PID 1420 wrote to memory of 1328	1420	4736-137-0x0000000000400000-0x0000000000421000-memory.exe	28
PID 1420 wrote to memory of 1328	1420	4736-137-0x0000000000400000-0x0000000000421000-memory.exe	28
PID 1420 wrote to memory of 1328	1420	4736-137-0x0000000000400000-0x0000000000421000-memory.exe	28
PID 1420 wrote to memory of 1328	1420	4736-137-0x0000000000400000-0x0000000000421000-memory.exe	28

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\4736-137-0x0000000000400000-0x0000000000421000-memory.exe
"C:\Users\Admin\AppData\Local\Temp\4736-137-0x0000000000400000-0x0000000000421000-memory.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1420
- 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:1328

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/1328-57-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1328-59-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1328-62-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1328-64-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1420-56-0x0000000075B61000-0x0000000075B63000-memory.dmp

Filesize
8KB

Download

Analysis

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