stormkitty | d178525a986175d484866facf95baa1573a63a1060e5a06346ee4da4932df656

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
02/08/2022, 17:33

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General

Target

a3c20b8c564076ca4e520a99c6cd1764.exe
Size

132KB
MD5

a3c20b8c564076ca4e520a99c6cd1764
SHA1

74700468ca8ef36b4111230b786bbab78c410468
SHA256

d178525a986175d484866facf95baa1573a63a1060e5a06346ee4da4932df656
SHA512

0f01b1e592d73d591a34b0b6e608859df3870e8ca65c29263e01a0dc53eafd4edf2c0efcac9ddfbb37ccb706e1b577bc79eb1828f344967b6723c20eb821dfa0

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/3536-133-0x0000000001010000-0x000000000102A000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Software\Microsoft\Office\15.0\Outlook\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
13	icanhazip.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1204 set thread context of 3536	1204	a3c20b8c564076ca4e520a99c6cd1764.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 use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3536	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1204	a3c20b8c564076ca4e520a99c6cd1764.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1204 wrote to memory of 3536	1204	a3c20b8c564076ca4e520a99c6cd1764.exe	83
PID 1204 wrote to memory of 3536	1204	a3c20b8c564076ca4e520a99c6cd1764.exe	83
PID 1204 wrote to memory of 3536	1204	a3c20b8c564076ca4e520a99c6cd1764.exe	83
PID 1204 wrote to memory of 3536	1204	a3c20b8c564076ca4e520a99c6cd1764.exe	83
PID 1204 wrote to memory of 3536	1204	a3c20b8c564076ca4e520a99c6cd1764.exe	83

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\a3c20b8c564076ca4e520a99c6cd1764.exe
"C:\Users\Admin\AppData\Local\Temp\a3c20b8c564076ca4e520a99c6cd1764.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1204
- 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:3536

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/3536-133-0x0000000001010000-0x000000000102A000-memory.dmp

Filesize
104KB

Download
memory/3536-134-0x0000000005470000-0x00000000054D6000-memory.dmp

Filesize
408KB

Download
memory/3536-135-0x0000000006070000-0x000000000610C000-memory.dmp

Filesize
624KB

Download