stormkitty | bcc5de39bf3bbc5331d0e00e14213563058fa242eeab71a275a68d78b6e143ab

Analysis

max time kernel
151s
max time network
131s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
09-09-2022 16:26

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General

Target

1088-63-0x0000000000400000-0x0000000000422000-memory.exe
Size

136KB
MD5

9449c8cdccedd721a0cbe09c0b6affbd
SHA1

90a4f7161f0ce4509788f01f2057b889c8eae919
SHA256

bcc5de39bf3bbc5331d0e00e14213563058fa242eeab71a275a68d78b6e143ab
SHA512

b07836419d067fe60c290cba214e2dadc06291d4da45cdc9b669183197c983648609ae2d92776284f494168a4ddfa7e4b81a61ee73d9a8f41f1ed737e1843ece
SSDEEP

1536:t/Zws3kTnvzbhNBPmxue2SRQg0dkEwiqoViokHdJQwFrXjm3:JZTkLfhjFSiO3o6/FHI

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/376-135-0x0000000000BD0000-0x0000000000BEA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\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
17	icanhazip.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1948 set thread context of 376	1948	1088-63-0x0000000000400000-0x0000000000422000-memory.exe	86

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	376	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1948	1088-63-0x0000000000400000-0x0000000000422000-memory.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1948 wrote to memory of 376	1948	1088-63-0x0000000000400000-0x0000000000422000-memory.exe	86
PID 1948 wrote to memory of 376	1948	1088-63-0x0000000000400000-0x0000000000422000-memory.exe	86
PID 1948 wrote to memory of 376	1948	1088-63-0x0000000000400000-0x0000000000422000-memory.exe	86
PID 1948 wrote to memory of 376	1948	1088-63-0x0000000000400000-0x0000000000422000-memory.exe	86
PID 1948 wrote to memory of 376	1948	1088-63-0x0000000000400000-0x0000000000422000-memory.exe	86

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\1088-63-0x0000000000400000-0x0000000000422000-memory.exe
"C:\Users\Admin\AppData\Local\Temp\1088-63-0x0000000000400000-0x0000000000422000-memory.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1948
- 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:376

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/376-135-0x0000000000BD0000-0x0000000000BEA000-memory.dmp

Filesize
104KB

Download
memory/376-136-0x0000000005450000-0x00000000054B6000-memory.dmp

Filesize
408KB

Download
memory/376-137-0x0000000005CF0000-0x0000000005D8C000-memory.dmp

Filesize
624KB

Download