stormkitty | c5b39deb91ede123e253cbf68e0b56323410da878b508f7f81ed5030825a7f9b

Analysis

max time kernel
150s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
12-08-2022 06:36

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General

Target

1564-64-0x0000000000400000-0x0000000000425000-memory.exe
Size

148KB
MD5

8f964936c5931ddfb9a4b4aab8ec8776
SHA1

bb8259c142988f490ed5e5bfb0d66a2c45930e16
SHA256

c5b39deb91ede123e253cbf68e0b56323410da878b508f7f81ed5030825a7f9b
SHA512

c2b9dfd84a8cda45be9f52efcdea2b6d27830f76786c0e2ed9f8ded3f768b25423efbb631a9ddf4467f4ee3d17ae0aaf37ace18228a963d5bd3667a4af175097

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/4516-133-0x0000000001020000-0x000000000103A000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\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
20	icanhazip.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 536 set thread context of 4516	536	1564-64-0x0000000000400000-0x0000000000425000-memory.exe	83

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
536	1564-64-0x0000000000400000-0x0000000000425000-memory.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4516	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
536	1564-64-0x0000000000400000-0x0000000000425000-memory.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 536 wrote to memory of 4516	536	1564-64-0x0000000000400000-0x0000000000425000-memory.exe	83
PID 536 wrote to memory of 4516	536	1564-64-0x0000000000400000-0x0000000000425000-memory.exe	83
PID 536 wrote to memory of 4516	536	1564-64-0x0000000000400000-0x0000000000425000-memory.exe	83
PID 536 wrote to memory of 4516	536	1564-64-0x0000000000400000-0x0000000000425000-memory.exe	83
PID 536 wrote to memory of 4516	536	1564-64-0x0000000000400000-0x0000000000425000-memory.exe	83

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\1564-64-0x0000000000400000-0x0000000000425000-memory.exe
"C:\Users\Admin\AppData\Local\Temp\1564-64-0x0000000000400000-0x0000000000425000-memory.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:536
- 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:4516

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/4516-133-0x0000000001020000-0x000000000103A000-memory.dmp

Filesize
104KB

Download
memory/4516-134-0x0000000005490000-0x00000000054F6000-memory.dmp

Filesize
408KB

Download
memory/4516-135-0x0000000005F40000-0x0000000005FDC000-memory.dmp

Filesize
624KB

Download