stormkitty | 3d075bfc29b9d4f17ac60eea8e58a1ebe94f2af614e1637e591799338984750b

Resubmissions

28-12-2022 04:42

221228-fb6mrsce3x 10

28-12-2022 04:37

221228-e8256sce2y 10

Analysis

max time kernel
149s
max time network
106s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
28-12-2022 04:37

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General

Target

3d075bfc29b9d4f17ac60eea8e58a1ebe94f2af614e1637e591799338984750b.exe
Size

136KB
MD5

1e3b9b3c9243ad08a9a71c1c5815b194
SHA1

54e370ed00b51781d527f0d09f3ee69245d2d46f
SHA256

3d075bfc29b9d4f17ac60eea8e58a1ebe94f2af614e1637e591799338984750b
SHA512

8b4e90be92462e99e41de3449cd1a03dd38f03ed4d258bd5e397b1f8600909fd354ab5eaf09e098183dd901b731d231d12d0ef1b6cd8103322fb1a22db86b29b
SSDEEP

1536:L/Zws3kTnvzbhNBPmxue2SRQg0dkEwiqoViorkfPPJICi5h3eF13:bZTkLfhjFSiO3odkfP7iHyV

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/4888-135-0x0000000000FB0000-0x0000000000FCA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\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
9	icanhazip.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2676 set thread context of 4888	2676	3d075bfc29b9d4f17ac60eea8e58a1ebe94f2af614e1637e591799338984750b.exe	80

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	4888	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2676	3d075bfc29b9d4f17ac60eea8e58a1ebe94f2af614e1637e591799338984750b.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2676 wrote to memory of 4888	2676	3d075bfc29b9d4f17ac60eea8e58a1ebe94f2af614e1637e591799338984750b.exe	80
PID 2676 wrote to memory of 4888	2676	3d075bfc29b9d4f17ac60eea8e58a1ebe94f2af614e1637e591799338984750b.exe	80
PID 2676 wrote to memory of 4888	2676	3d075bfc29b9d4f17ac60eea8e58a1ebe94f2af614e1637e591799338984750b.exe	80
PID 2676 wrote to memory of 4888	2676	3d075bfc29b9d4f17ac60eea8e58a1ebe94f2af614e1637e591799338984750b.exe	80
PID 2676 wrote to memory of 4888	2676	3d075bfc29b9d4f17ac60eea8e58a1ebe94f2af614e1637e591799338984750b.exe	80

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\3d075bfc29b9d4f17ac60eea8e58a1ebe94f2af614e1637e591799338984750b.exe
"C:\Users\Admin\AppData\Local\Temp\3d075bfc29b9d4f17ac60eea8e58a1ebe94f2af614e1637e591799338984750b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2676
- 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:4888

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

Replay Monitor

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Downloads

memory/4888-135-0x0000000000FB0000-0x0000000000FCA000-memory.dmp

Filesize
104KB

Download
memory/4888-136-0x00000000055A0000-0x0000000005606000-memory.dmp

Filesize
408KB

Download
memory/4888-137-0x0000000006000000-0x000000000609C000-memory.dmp

Filesize
624KB

Download