stormkitty | 9b1e17bfb91e74ba74e0b00fba0fa0c71316994cca8145207f3dd0f0e41f1ed5

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23-11-2024 14:26

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General

Target

Pc Fire.exe
Size

74KB
MD5

5869edd76793fdda010c3191d14a38af
SHA1

aacad694e1334c037e68db2201173a8347afff78
SHA256

9b1e17bfb91e74ba74e0b00fba0fa0c71316994cca8145207f3dd0f0e41f1ed5
SHA512

3a0cf7e4d6315ca2be833336f579d1d421d03dda2adcf5fc02ee8880bbb4251b8544528e5bc0c0598447dac49dd6dfb357f42b7bab55ecc792e6f82334091d82
SSDEEP

1536:fZno9xptw8VGHE1uWdas6vKPHvfpK3INcwqE49aSvwKxjzxt6e:f+bZPfpK3qDqP9aSvwKhzxtz

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/2480-1-0x00000000008A0000-0x00000000008B8000-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/2480-1-0x00000000008A0000-0x00000000008B8000-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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\nvidiaDValueOn = "C:\\Users\\Admin\\AppData\\Local\\NVIDIA Local Drivers\\DriversUpdateProcess_x64.exe"	Pc Fire.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	2480	Pc Fire.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2480 wrote to memory of 2248	2480	Pc Fire.exe	31
PID 2480 wrote to memory of 2248	2480	Pc Fire.exe	31
PID 2480 wrote to memory of 2248	2480	Pc Fire.exe	31

C:\Users\Admin\AppData\Local\Temp\Pc Fire.exe
"C:\Users\Admin\AppData\Local\Temp\Pc Fire.exe"
1⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2480
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2480 -s 1056
  2⤵
  PID:2248

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/2480-0-0x000007FEF5EA3000-0x000007FEF5EA4000-memory.dmp

Filesize
4KB

Download
memory/2480-1-0x00000000008A0000-0x00000000008B8000-memory.dmp

Filesize
96KB

Download
memory/2480-2-0x000007FEF5EA0000-0x000007FEF688C000-memory.dmp

Filesize
9.9MB

Download
memory/2480-5-0x000007FEF5EA3000-0x000007FEF5EA4000-memory.dmp

Filesize
4KB

Download
memory/2480-6-0x000007FEF5EA0000-0x000007FEF688C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads