stormkitty | 526d615c3af7609c45e44f50d6dd2e83e02c60afcdf5d3aaea1557d7a5e964de

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
05/08/2022, 17:34

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General

Target

744e994a8241e0eb8bec4d4e78b4d8f1.exe
Size

136KB
MD5

744e994a8241e0eb8bec4d4e78b4d8f1
SHA1

a30167114f9fd84aabcd25199eb7680afce179f5
SHA256

526d615c3af7609c45e44f50d6dd2e83e02c60afcdf5d3aaea1557d7a5e964de
SHA512

198108e5522c37ec6000d37504a9392701ff2d171f0310fe863efcb27df4a73e007709874be02974cb0d6abd8e77c4a7189052c9b4a4fd7c01c072d1a390a6fa

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/3376-133-0x0000000000160000-0x000000000017A000-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\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
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

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
22	icanhazip.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4116 set thread context of 3376	4116	744e994a8241e0eb8bec4d4e78b4d8f1.exe	84

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	3376	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4116	744e994a8241e0eb8bec4d4e78b4d8f1.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4116 wrote to memory of 3376	4116	744e994a8241e0eb8bec4d4e78b4d8f1.exe	84
PID 4116 wrote to memory of 3376	4116	744e994a8241e0eb8bec4d4e78b4d8f1.exe	84
PID 4116 wrote to memory of 3376	4116	744e994a8241e0eb8bec4d4e78b4d8f1.exe	84
PID 4116 wrote to memory of 3376	4116	744e994a8241e0eb8bec4d4e78b4d8f1.exe	84
PID 4116 wrote to memory of 3376	4116	744e994a8241e0eb8bec4d4e78b4d8f1.exe	84

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\744e994a8241e0eb8bec4d4e78b4d8f1.exe
"C:\Users\Admin\AppData\Local\Temp\744e994a8241e0eb8bec4d4e78b4d8f1.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4116
- 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:3376

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/3376-133-0x0000000000160000-0x000000000017A000-memory.dmp

Filesize
104KB

Download
memory/3376-134-0x0000000004A30000-0x0000000004A96000-memory.dmp

Filesize
408KB

Download
memory/3376-135-0x00000000053C0000-0x000000000545C000-memory.dmp

Filesize
624KB

Download