stormkitty | 350e90c78478820a9240472f315c2ab90fea577893a121a1959e5c6b427d0b48

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
17-08-2022 06:05

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General

Target

93b5c69e8b112eb6220e44b41caba6d7.exe
Size

140KB
MD5

93b5c69e8b112eb6220e44b41caba6d7
SHA1

1b39574ba17317ea31de83175846610dd870f802
SHA256

350e90c78478820a9240472f315c2ab90fea577893a121a1959e5c6b427d0b48
SHA512

6348f041fea14348cf056a0387041a7a8cc711bf35b92884fc1384cb2f019c1b6ec5d43695e92ec65fc48071130e653ff4041ad9c4825b4e4a4d4bb29c1121b7

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/808-135-0x0000000001330000-0x000000000134A000-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\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
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

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
25	icanhazip.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3776 set thread context of 808	3776	93b5c69e8b112eb6220e44b41caba6d7.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	808	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3776	93b5c69e8b112eb6220e44b41caba6d7.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3776 wrote to memory of 808	3776	93b5c69e8b112eb6220e44b41caba6d7.exe	83
PID 3776 wrote to memory of 808	3776	93b5c69e8b112eb6220e44b41caba6d7.exe	83
PID 3776 wrote to memory of 808	3776	93b5c69e8b112eb6220e44b41caba6d7.exe	83
PID 3776 wrote to memory of 808	3776	93b5c69e8b112eb6220e44b41caba6d7.exe	83
PID 3776 wrote to memory of 808	3776	93b5c69e8b112eb6220e44b41caba6d7.exe	83

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\93b5c69e8b112eb6220e44b41caba6d7.exe
"C:\Users\Admin\AppData\Local\Temp\93b5c69e8b112eb6220e44b41caba6d7.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3776
- 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:808

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/808-135-0x0000000001330000-0x000000000134A000-memory.dmp

Filesize
104KB

Download
memory/808-136-0x00000000058E0000-0x0000000005946000-memory.dmp

Filesize
408KB

Download
memory/808-137-0x00000000063A0000-0x000000000643C000-memory.dmp

Filesize
624KB

Download