stormkitty | 399fcc26b309dfabe8985f6ef3d827a22e9efc6fcdcb21f61a9d601043f17c5b

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-10-2024 16:45

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General

Target

StormKitty.exe
Size

113KB
MD5

bc830e4fc1b97a0a8686c5a42c34c6f9
SHA1

220eef99375485f20b5a9a85fa23b7ee5d8e3329
SHA256

399fcc26b309dfabe8985f6ef3d827a22e9efc6fcdcb21f61a9d601043f17c5b
SHA512

51f560595a98b7551737ba349ad750975b99c9777ad7150031b946721afe0509a0b2f90609063e802b57fcd257f5668cb7f259c4dbbf381b0628ab23b71ad58f
SSDEEP

1536:A/9b1J5I2LKlgGoqQ8RcTz5x2ci52g9usGA9bAF12zoEXiLzU6pdjy1+Z:o9pJ5I2FpocvMvusN9bA+iLzU6pdUi

Score

10^/10

stormkitty discovery 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/1492-1-0x0000000000B50000-0x0000000000B72000-memory.dmp	family_stormkitty

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	StormKitty.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	StormKitty.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
512	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2136	taskkill.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1492	StormKitty.exe
Token: SeDebugPrivilege	2136	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1492 wrote to memory of 3112	1492	StormKitty.exe	88
PID 1492 wrote to memory of 3112	1492	StormKitty.exe	88
PID 1492 wrote to memory of 3112	1492	StormKitty.exe	88
PID 3112 wrote to memory of 3020	3112	cmd.exe	90
PID 3112 wrote to memory of 3020	3112	cmd.exe	90
PID 3112 wrote to memory of 3020	3112	cmd.exe	90
PID 3112 wrote to memory of 2136	3112	cmd.exe	91
PID 3112 wrote to memory of 2136	3112	cmd.exe	91
PID 3112 wrote to memory of 2136	3112	cmd.exe	91
PID 3112 wrote to memory of 512	3112	cmd.exe	92
PID 3112 wrote to memory of 512	3112	cmd.exe	92
PID 3112 wrote to memory of 512	3112	cmd.exe	92

C:\Users\Admin\AppData\Local\Temp\StormKitty.exe
"C:\Users\Admin\AppData\Local\Temp\StormKitty.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1492
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp853D.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmp853D.tmp.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3112
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3020
- - C:\Windows\SysWOW64\taskkill.exe
    TaskKill /F /IM 1492
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2136
- - C:\Windows\SysWOW64\timeout.exe
    Timeout /T 2 /Nobreak
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:512

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp853D.tmp.bat

Filesize
117B

MD5
7f3880e56353c26fc21d84e96f94b52e

SHA1
a7ad1e7600e00ef74da74f7e37203103b4791a8a

SHA256
03117606221a3d360c862bbd24ee85e34097f5a71a457e93b5b3ad9705d8fbe5

SHA512
64ecc7850d90d4dcc81446244d1230d55a5fb0624ae0ff9f959b13da198983e1457acded77fe31cb5d88c2b914752e55000350efd24a07130729a22bd24f97ce

Download Submit
memory/1492-0-0x00000000753AE000-0x00000000753AF000-memory.dmp

Filesize
4KB

Download
memory/1492-1-0x0000000000B50000-0x0000000000B72000-memory.dmp

Filesize
136KB

Download
memory/1492-2-0x0000000005520000-0x0000000005586000-memory.dmp

Filesize
408KB

Download
memory/1492-3-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/1492-6-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download