stormkitty | 07596ca20b3e197f4e03f9a88cd163ddeff5b6f521df937ffb1e0ef9746a78b6

General

Target

a64c16946bf03bfa2c52aba4dd0b55cc.exe
Size

136KB
MD5

a64c16946bf03bfa2c52aba4dd0b55cc
SHA1

7e048b042f7eee728bbac2720716bae32c9a236a
SHA256

07596ca20b3e197f4e03f9a88cd163ddeff5b6f521df937ffb1e0ef9746a78b6
SHA512

0289c12d8b8b4af7dca30cf862f252a14698a17dbf7d2b71eb941ec72b3eb5bc72a1c034eb4c19720ee04a943af7183758d08c9bb7abfdb224cee31b12d9921d

Score

10^/10

stormkitty collection stealer

Malware Config

Signatures

StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 4 IoCs

resource	yara_rule
behavioral1/memory/1620-59-0x00000000000D0000-0x00000000000EA000-memory.dmp	family_stormkitty
behavioral1/memory/1620-60-0x00000000000E4F6E-mapping.dmp	family_stormkitty
behavioral1/memory/1620-62-0x00000000000D0000-0x00000000000EA000-memory.dmp	family_stormkitty
behavioral1/memory/1620-64-0x00000000000D0000-0x00000000000EA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\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
4	icanhazip.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1252 set thread context of 1620	1252	a64c16946bf03bfa2c52aba4dd0b55cc.exe	27

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	1620	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1252	a64c16946bf03bfa2c52aba4dd0b55cc.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1252 wrote to memory of 1620	1252	a64c16946bf03bfa2c52aba4dd0b55cc.exe	27
PID 1252 wrote to memory of 1620	1252	a64c16946bf03bfa2c52aba4dd0b55cc.exe	27
PID 1252 wrote to memory of 1620	1252	a64c16946bf03bfa2c52aba4dd0b55cc.exe	27
PID 1252 wrote to memory of 1620	1252	a64c16946bf03bfa2c52aba4dd0b55cc.exe	27
PID 1252 wrote to memory of 1620	1252	a64c16946bf03bfa2c52aba4dd0b55cc.exe	27
PID 1252 wrote to memory of 1620	1252	a64c16946bf03bfa2c52aba4dd0b55cc.exe	27
PID 1252 wrote to memory of 1620	1252	a64c16946bf03bfa2c52aba4dd0b55cc.exe	27
PID 1252 wrote to memory of 1620	1252	a64c16946bf03bfa2c52aba4dd0b55cc.exe	27
PID 1252 wrote to memory of 1620	1252	a64c16946bf03bfa2c52aba4dd0b55cc.exe	27

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\a64c16946bf03bfa2c52aba4dd0b55cc.exe
"C:\Users\Admin\AppData\Local\Temp\a64c16946bf03bfa2c52aba4dd0b55cc.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1252
- 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:1620

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1252-56-0x00000000753E1000-0x00000000753E3000-memory.dmp

Filesize
8KB

Download
memory/1620-57-0x00000000000D0000-0x00000000000EA000-memory.dmp

Filesize
104KB

Download
memory/1620-59-0x00000000000D0000-0x00000000000EA000-memory.dmp

Filesize
104KB

Download
memory/1620-62-0x00000000000D0000-0x00000000000EA000-memory.dmp

Filesize
104KB

Download
memory/1620-64-0x00000000000D0000-0x00000000000EA000-memory.dmp

Filesize
104KB

Download

Analysis

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