stormkitty | 3cf37367797ad61761ab44b22ec80c206d31411a604106d061be6935787b8110

Analysis

max time kernel
122s
max time network
127s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01-12-2024 21:21

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General

Target

3cf37367797ad61761ab44b22ec80c206d31411a604106d061be6935787b8110.exe
Size

80KB
MD5

9bcb1a253d07b610da76fd22ad176c9d
SHA1

e5f8196083beab009db092fe891e88551393b247
SHA256

3cf37367797ad61761ab44b22ec80c206d31411a604106d061be6935787b8110
SHA512

1d0729cbff3905f937a59a9e56ed4c65cb805395cc430035b45bb82e1b06d8cfa490466d3661ade18b05e4be74ba642df1b61c03dbf7f22740373687261c5744
SSDEEP

1536:FZno9xptw8VGHE1uWdas6vKPHvfpK3I5hxS9a/voKxjzxtV3wFrD:F+bZPfpK3g69a/voKhzxtdwFn

Score

10^/10

stormkitty persistence stealer

Malware Config

Signatures

Contains code to disable Windows Defender 1 IoCs

A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

resource	yara_rule
behavioral1/memory/2956-1-0x0000000000E60000-0x0000000000E78000-memory.dmp	disable_win_def

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

StormKitty payload 1 IoCs

resource	yara_rule
behavioral1/memory/2956-1-0x0000000000E60000-0x0000000000E78000-memory.dmp	family_stormkitty

Stormkitty family
stormkitty

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\nvidiaDValueOn = "C:\\Users\\Admin\\AppData\\Local\\NVIDIA Local Drivers\\DriversUpdateProcess_x64.exe"	3cf37367797ad61761ab44b22ec80c206d31411a604106d061be6935787b8110.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	checkip.dyndns.org

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2956	3cf37367797ad61761ab44b22ec80c206d31411a604106d061be6935787b8110.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2956 wrote to memory of 2480	2956	3cf37367797ad61761ab44b22ec80c206d31411a604106d061be6935787b8110.exe	31
PID 2956 wrote to memory of 2480	2956	3cf37367797ad61761ab44b22ec80c206d31411a604106d061be6935787b8110.exe	31
PID 2956 wrote to memory of 2480	2956	3cf37367797ad61761ab44b22ec80c206d31411a604106d061be6935787b8110.exe	31

C:\Users\Admin\AppData\Local\Temp\3cf37367797ad61761ab44b22ec80c206d31411a604106d061be6935787b8110.exe
"C:\Users\Admin\AppData\Local\Temp\3cf37367797ad61761ab44b22ec80c206d31411a604106d061be6935787b8110.exe"
1⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2956
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2956 -s 1060
  2⤵
  PID:2480

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2956-0-0x000007FEF5CD3000-0x000007FEF5CD4000-memory.dmp

Filesize
4KB

Download
memory/2956-1-0x0000000000E60000-0x0000000000E78000-memory.dmp

Filesize
96KB

Download
memory/2956-2-0x000007FEF5CD0000-0x000007FEF66BC000-memory.dmp

Filesize
9.9MB

Download
memory/2956-5-0x000007FEF5CD3000-0x000007FEF5CD4000-memory.dmp

Filesize
4KB

Download
memory/2956-6-0x000007FEF5CD0000-0x000007FEF66BC000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads