stormkitty | d5adba5715cd10a3c9dcf11d7ab1e30834050eef7513bda558bfe39a53a364ac

Analysis

max time kernel
150s
max time network
60s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
15-08-2022 05:01

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General

Target

tmp.exe
Size

136KB
MD5

97ea1fd26da454e1502d7f4de38a21af
SHA1

4aa14c0146621373c9e022c626f9e50560947389
SHA256

d5adba5715cd10a3c9dcf11d7ab1e30834050eef7513bda558bfe39a53a364ac
SHA512

db31c10d4d0a7c6798d99a12c49bdfaa8957c84b03a62c3f2cdb14a5ac15008340229df1238adea707dfe255b107db36aab53574571cf3bd8d208447293e6363

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/4524-135-0x0000000000770000-0x000000000078A000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1502147629-2175634256-330282290-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1502147629-2175634256-330282290-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1502147629-2175634256-330282290-1000\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
1	icanhazip.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4108 set thread context of 4524	4108	tmp.exe	77

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	4524	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4108	tmp.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4108 wrote to memory of 4524	4108	tmp.exe	77
PID 4108 wrote to memory of 4524	4108	tmp.exe	77
PID 4108 wrote to memory of 4524	4108	tmp.exe	77
PID 4108 wrote to memory of 4524	4108	tmp.exe	77
PID 4108 wrote to memory of 4524	4108	tmp.exe	77

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1502147629-2175634256-330282290-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1502147629-2175634256-330282290-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4108
- 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:4524

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

Replay Monitor

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Downloads

memory/4524-135-0x0000000000770000-0x000000000078A000-memory.dmp

Filesize
104KB

Download
memory/4524-136-0x0000000005010000-0x0000000005076000-memory.dmp

Filesize
408KB

Download
memory/4524-137-0x0000000005AE0000-0x0000000005B7C000-memory.dmp

Filesize
624KB

Download