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 16:50

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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/2464-1-0x0000000000480000-0x00000000004A2000-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-1-5-21-2437139445-1151884604-3026847218-1000\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	StormKitty.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
4576	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
4924	taskkill.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2464	StormKitty.exe
Token: SeDebugPrivilege	4924	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2464 wrote to memory of 3740	2464	StormKitty.exe	88
PID 2464 wrote to memory of 3740	2464	StormKitty.exe	88
PID 2464 wrote to memory of 3740	2464	StormKitty.exe	88
PID 3740 wrote to memory of 3576	3740	cmd.exe	90
PID 3740 wrote to memory of 3576	3740	cmd.exe	90
PID 3740 wrote to memory of 3576	3740	cmd.exe	90
PID 3740 wrote to memory of 4924	3740	cmd.exe	91
PID 3740 wrote to memory of 4924	3740	cmd.exe	91
PID 3740 wrote to memory of 4924	3740	cmd.exe	91
PID 3740 wrote to memory of 4576	3740	cmd.exe	92
PID 3740 wrote to memory of 4576	3740	cmd.exe	92
PID 3740 wrote to memory of 4576	3740	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:2464
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpBA09.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmpBA09.tmp.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3740
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3576
- - C:\Windows\SysWOW64\taskkill.exe
    TaskKill /F /IM 2464
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4924
- - C:\Windows\SysWOW64\timeout.exe
    Timeout /T 2 /Nobreak
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4576

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\tmpBA09.tmp.bat

Filesize
117B

MD5
bf52cd41df073afff60c1e3c98f77465

SHA1
141749afeebe73c3dc38f1ac9bb3ea7ff7294964

SHA256
ee337994bb87dda1617d90569cbd53312a48020e3e7f07820507cf69e8ecf72f

SHA512
b61bc9962e9edacbc6218c1379f044a535db30fda6923be6cfaed155deb76280e89ebde93a50ac7318c58640851ba40377ea5e87986725d02c4a3c5e9d796ec2

Download Submit
memory/2464-0-0x00000000747CE000-0x00000000747CF000-memory.dmp

Filesize
4KB

Download
memory/2464-1-0x0000000000480000-0x00000000004A2000-memory.dmp

Filesize
136KB

Download
memory/2464-2-0x0000000004E20000-0x0000000004E86000-memory.dmp

Filesize
408KB

Download
memory/2464-3-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/2464-6-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download