stormkitty | b5fb29bbafca30ab9de1c27dc7256354e75c2dbf8dee4e5f821821f05fa490ae

Analysis

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

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
20-09-2022 05:27

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General

Target

764-63-0x0000000000400000-0x0000000000424000-memory.exe
Size

144KB
MD5

257d7ac28402c7926a45d26a4011c8f3
SHA1

da937ccc7b250c119c5d83333f942cf9e16d5e3b
SHA256

b5fb29bbafca30ab9de1c27dc7256354e75c2dbf8dee4e5f821821f05fa490ae
SHA512

22ad358b3f8d1d13cbb07e312d5edbd933e31c5acc66d25a920108ffafc237c021e35f266b0086d1cec4e31a5e9aec41db486d866d5220e120a8dbe35c2fdc9c
SSDEEP

1536:YLW/Zws3kTnvzbhNBPmxue2SRQg0dkEwiqoVioBFo08HvUWPdoQwcOxiKDm:7ZTkLfhjFSiO3oLFo08HseyQwV

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/3436-135-0x00000000009A0000-0x00000000009BA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\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
13	icanhazip.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4988 set thread context of 3436	4988	764-63-0x0000000000400000-0x0000000000424000-memory.exe	82

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 behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4988	764-63-0x0000000000400000-0x0000000000424000-memory.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3436	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4988	764-63-0x0000000000400000-0x0000000000424000-memory.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4988 wrote to memory of 3436	4988	764-63-0x0000000000400000-0x0000000000424000-memory.exe	82
PID 4988 wrote to memory of 3436	4988	764-63-0x0000000000400000-0x0000000000424000-memory.exe	82
PID 4988 wrote to memory of 3436	4988	764-63-0x0000000000400000-0x0000000000424000-memory.exe	82
PID 4988 wrote to memory of 3436	4988	764-63-0x0000000000400000-0x0000000000424000-memory.exe	82
PID 4988 wrote to memory of 3436	4988	764-63-0x0000000000400000-0x0000000000424000-memory.exe	82

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\764-63-0x0000000000400000-0x0000000000424000-memory.exe
"C:\Users\Admin\AppData\Local\Temp\764-63-0x0000000000400000-0x0000000000424000-memory.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4988
- 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:3436

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/3436-135-0x00000000009A0000-0x00000000009BA000-memory.dmp

Filesize
104KB

Download
memory/3436-136-0x0000000005270000-0x00000000052D6000-memory.dmp

Filesize
408KB

Download
memory/3436-137-0x0000000005BE0000-0x0000000005C7C000-memory.dmp

Filesize
624KB

Download