stormkitty | ab20abd2eaaab9922983e4abfcec5891f15b6d5d798e742476a933ef31d9263d

Analysis

max time kernel
149s
max time network
108s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
08-10-2022 21:40

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General

Target

4592-147-0x0000000000400000-0x0000000000422000-memory.exe
Size

136KB
MD5

c8305980d0258f9b45530a542a416c14
SHA1

64e0bb8ade5c4acf5318b9a2ec73a51e2bd95fd3
SHA256

ab20abd2eaaab9922983e4abfcec5891f15b6d5d798e742476a933ef31d9263d
SHA512

72c29a1d8e26f4e6d38f34c1c9716b308cb7a709a45f4d506da61921615a997a81c3098044413a11610a23ad8543abca2cf58f934286969443a5538f18f218bd
SSDEEP

1536:v7/Zws3kTnvzbhNBPmxue2SRQg0dkEwiqoVioLk2xzJo+e6yoi:TZTkLfhjFSiO3ohk2le6Q

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/636-135-0x0000000000980000-0x000000000099A000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\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
12	icanhazip.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4568 set thread context of 636	4568	4592-147-0x0000000000400000-0x0000000000422000-memory.exe	85

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	636	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4568	4592-147-0x0000000000400000-0x0000000000422000-memory.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4568 wrote to memory of 636	4568	4592-147-0x0000000000400000-0x0000000000422000-memory.exe	85
PID 4568 wrote to memory of 636	4568	4592-147-0x0000000000400000-0x0000000000422000-memory.exe	85
PID 4568 wrote to memory of 636	4568	4592-147-0x0000000000400000-0x0000000000422000-memory.exe	85
PID 4568 wrote to memory of 636	4568	4592-147-0x0000000000400000-0x0000000000422000-memory.exe	85
PID 4568 wrote to memory of 636	4568	4592-147-0x0000000000400000-0x0000000000422000-memory.exe	85

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\4592-147-0x0000000000400000-0x0000000000422000-memory.exe
"C:\Users\Admin\AppData\Local\Temp\4592-147-0x0000000000400000-0x0000000000422000-memory.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4568
- 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:636

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/636-135-0x0000000000980000-0x000000000099A000-memory.dmp

Filesize
104KB

Download
memory/636-136-0x0000000004E60000-0x0000000004EC6000-memory.dmp

Filesize
408KB

Download
memory/636-137-0x0000000005790000-0x000000000582C000-memory.dmp

Filesize
624KB

Download