stormkitty | dc513d0a1d8a81d37e04bbdc32768bb5c6caaccc7ab1db4172b5461f7e1db9f4

Analysis

max time kernel
150s
max time network
71s
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 09:40

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General

Target

1440-67-0x0000000000400000-0x0000000000425000-memory.exe
Size

148KB
MD5

ee33905972158ec063901eedea351816
SHA1

0019af911d58e5b00e6e4f80ee5b90c14cc6b8bd
SHA256

dc513d0a1d8a81d37e04bbdc32768bb5c6caaccc7ab1db4172b5461f7e1db9f4
SHA512

a425f49ad22baeb3d2d982504a94ff86a5ea234606c875bf7679e0b91911ae45bb1b525a66c30709a1cdcec5273b1e803a31bff97e575d5d118c0ad29492709b

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/2248-135-0x0000000000680000-0x000000000069A000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\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
1	icanhazip.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3136 set thread context of 2248	3136	1440-67-0x0000000000400000-0x0000000000425000-memory.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 behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3136	1440-67-0x0000000000400000-0x0000000000425000-memory.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2248	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3136	1440-67-0x0000000000400000-0x0000000000425000-memory.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3136 wrote to memory of 2248	3136	1440-67-0x0000000000400000-0x0000000000425000-memory.exe	77
PID 3136 wrote to memory of 2248	3136	1440-67-0x0000000000400000-0x0000000000425000-memory.exe	77
PID 3136 wrote to memory of 2248	3136	1440-67-0x0000000000400000-0x0000000000425000-memory.exe	77
PID 3136 wrote to memory of 2248	3136	1440-67-0x0000000000400000-0x0000000000425000-memory.exe	77
PID 3136 wrote to memory of 2248	3136	1440-67-0x0000000000400000-0x0000000000425000-memory.exe	77

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\1440-67-0x0000000000400000-0x0000000000425000-memory.exe
"C:\Users\Admin\AppData\Local\Temp\1440-67-0x0000000000400000-0x0000000000425000-memory.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3136
- 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:2248

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/2248-135-0x0000000000680000-0x000000000069A000-memory.dmp

Filesize
104KB

Download
memory/2248-136-0x0000000004D10000-0x0000000004D76000-memory.dmp

Filesize
408KB

Download
memory/2248-137-0x0000000005800000-0x000000000589C000-memory.dmp

Filesize
624KB

Download