stormkitty | 53f6a6358061cc25edffd7df15f1b81018364eb2b159d7add83a750d4770efa7

Analysis

max time kernel
150s
max time network
99s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
22-02-2023 04:41

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General

Target

test4.exe
Size

136KB
MD5

180d9763716878d636d0cb5f81f30e7e
SHA1

ecdaea23af9fd1d58cec4bdcb41fc7a6de08a1ec
SHA256

53f6a6358061cc25edffd7df15f1b81018364eb2b159d7add83a750d4770efa7
SHA512

ac461087e2a1f04fc2830bdd2916dee49702eb60fb927dbb65ca73bb2dc8b5c0ba679ee5dccf971f2bb77bf0279405d9b45c629932395f8e7b6812f98656e3dd
SSDEEP

1536:Q/w/Zws3kTnvzbhNBPmxue2SRQg0dkEwiqoVioZkcOqJ40eZgYAv:Q0ZTkLfhjFSiO3o3kcqZZG

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/3428-135-0x0000000000770000-0x000000000078A000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\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 2388 set thread context of 3428	2388	test4.exe	80

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	3428	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2388	test4.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 3428	2388	test4.exe	80
PID 2388 wrote to memory of 3428	2388	test4.exe	80
PID 2388 wrote to memory of 3428	2388	test4.exe	80
PID 2388 wrote to memory of 3428	2388	test4.exe	80
PID 2388 wrote to memory of 3428	2388	test4.exe	80

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\test4.exe
"C:\Users\Admin\AppData\Local\Temp\test4.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2388
- 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:3428

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/3428-135-0x0000000000770000-0x000000000078A000-memory.dmp

Filesize
104KB

Download
memory/3428-136-0x0000000005010000-0x0000000005076000-memory.dmp

Filesize
408KB

Download
memory/3428-137-0x0000000005110000-0x0000000005120000-memory.dmp

Filesize
64KB

Download
memory/3428-138-0x00000000059B0000-0x0000000005A4C000-memory.dmp

Filesize
624KB

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