stormkitty | 2c2c5ea09fe6d23ec5a01adf608d58040f97fa65682ff72bbad31991f2c3e75d

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
01-09-2022 10:32

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General

Target

1052-67-0x0000000000400000-0x0000000000422000-memory.exe
Size

136KB
MD5

b118fb3925ee0988963731f47d9839be
SHA1

bb5cc63ef15ece861a185461be2daa19c82f75f5
SHA256

2c2c5ea09fe6d23ec5a01adf608d58040f97fa65682ff72bbad31991f2c3e75d
SHA512

6b61606365458508a3dd8c39a691b66a6dbf8043786a4ddeaf8aac0f74b6c9c762bc4eb3f3d879278e40d27b8c81112b0e13ee37aeaed9f521bd67e65eae1cc9
SSDEEP

1536:fbJd/Zws3kTnvzbhNBPmxue2SRQg0dkEwiqoVior93DJQXp3ZRsjcU0K3h:fnZTkLfhjFSiO3onaRsjkK

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/5052-135-0x0000000000980000-0x000000000099A000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\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
5	icanhazip.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2264 set thread context of 5052	2264	1052-67-0x0000000000400000-0x0000000000422000-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 use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5052	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2264	1052-67-0x0000000000400000-0x0000000000422000-memory.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2264 wrote to memory of 5052	2264	1052-67-0x0000000000400000-0x0000000000422000-memory.exe	82
PID 2264 wrote to memory of 5052	2264	1052-67-0x0000000000400000-0x0000000000422000-memory.exe	82
PID 2264 wrote to memory of 5052	2264	1052-67-0x0000000000400000-0x0000000000422000-memory.exe	82
PID 2264 wrote to memory of 5052	2264	1052-67-0x0000000000400000-0x0000000000422000-memory.exe	82
PID 2264 wrote to memory of 5052	2264	1052-67-0x0000000000400000-0x0000000000422000-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\1052-67-0x0000000000400000-0x0000000000422000-memory.exe
"C:\Users\Admin\AppData\Local\Temp\1052-67-0x0000000000400000-0x0000000000422000-memory.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2264
- 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:5052

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/5052-135-0x0000000000980000-0x000000000099A000-memory.dmp

Filesize
104KB

Download
memory/5052-136-0x0000000004EF0000-0x0000000004F56000-memory.dmp

Filesize
408KB

Download
memory/5052-137-0x00000000058C0000-0x000000000595C000-memory.dmp

Filesize
624KB

Download