stormkitty | 3704c9065de2c596066dbca893c63b1d12b9264d62cffd92ffc49aaf919b49a5

Analysis

max time kernel
150s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
16-08-2022 07:20

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General

Target

9d7cb550c366b91e89384152462bc655.exe
Size

132KB
MD5

9d7cb550c366b91e89384152462bc655
SHA1

503f7fbcfc11e364378d085a3f10d212b00d2b66
SHA256

3704c9065de2c596066dbca893c63b1d12b9264d62cffd92ffc49aaf919b49a5
SHA512

058832e14bceb6d2fc66f4a59f93507c88e509c2eaaf9680e342a86074c9da3ca6b7cbed5c18da98c16d30527f9c779c62979f752309b33a013275b73963343d

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/392-135-0x0000000000D40000-0x0000000000D5A000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1502147629-2175634256-330282290-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1502147629-2175634256-330282290-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1502147629-2175634256-330282290-1000\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
5	icanhazip.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4744 set thread context of 392	4744	9d7cb550c366b91e89384152462bc655.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	AppLaunch.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	AppLaunch.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	392	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4744	9d7cb550c366b91e89384152462bc655.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4744 wrote to memory of 392	4744	9d7cb550c366b91e89384152462bc655.exe	80
PID 4744 wrote to memory of 392	4744	9d7cb550c366b91e89384152462bc655.exe	80
PID 4744 wrote to memory of 392	4744	9d7cb550c366b91e89384152462bc655.exe	80
PID 4744 wrote to memory of 392	4744	9d7cb550c366b91e89384152462bc655.exe	80
PID 4744 wrote to memory of 392	4744	9d7cb550c366b91e89384152462bc655.exe	80

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1502147629-2175634256-330282290-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1502147629-2175634256-330282290-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\9d7cb550c366b91e89384152462bc655.exe
"C:\Users\Admin\AppData\Local\Temp\9d7cb550c366b91e89384152462bc655.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4744
- 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:392

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/392-135-0x0000000000D40000-0x0000000000D5A000-memory.dmp

Filesize
104KB

Download
memory/392-136-0x0000000005230000-0x0000000005296000-memory.dmp

Filesize
408KB

Download
memory/392-137-0x0000000005B80000-0x0000000005C1C000-memory.dmp

Filesize
624KB

Download