stormkitty | 399fcc26b309dfabe8985f6ef3d827a22e9efc6fcdcb21f61a9d601043f17c5b

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-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
behavioral1/memory/2448-1-0x0000000000E80000-0x0000000000EA2000-memory.dmp	family_stormkitty

Deletes itself 1 IoCs

pid	Process
2672	cmd.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
2568	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2756	taskkill.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2448	StormKitty.exe
Token: SeDebugPrivilege	2756	taskkill.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2448 wrote to memory of 2672	2448	StormKitty.exe	31
PID 2448 wrote to memory of 2672	2448	StormKitty.exe	31
PID 2448 wrote to memory of 2672	2448	StormKitty.exe	31
PID 2448 wrote to memory of 2672	2448	StormKitty.exe	31
PID 2672 wrote to memory of 2752	2672	cmd.exe	33
PID 2672 wrote to memory of 2752	2672	cmd.exe	33
PID 2672 wrote to memory of 2752	2672	cmd.exe	33
PID 2672 wrote to memory of 2752	2672	cmd.exe	33
PID 2672 wrote to memory of 2756	2672	cmd.exe	34
PID 2672 wrote to memory of 2756	2672	cmd.exe	34
PID 2672 wrote to memory of 2756	2672	cmd.exe	34
PID 2672 wrote to memory of 2756	2672	cmd.exe	34
PID 2672 wrote to memory of 2568	2672	cmd.exe	35
PID 2672 wrote to memory of 2568	2672	cmd.exe	35
PID 2672 wrote to memory of 2568	2672	cmd.exe	35
PID 2672 wrote to memory of 2568	2672	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\StormKitty.exe
"C:\Users\Admin\AppData\Local\Temp\StormKitty.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2448
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpD2A.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmpD2A.tmp.bat
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2672
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2752
- - C:\Windows\SysWOW64\taskkill.exe
    TaskKill /F /IM 2448
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2756
- - C:\Windows\SysWOW64\timeout.exe
    Timeout /T 2 /Nobreak
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2568

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpD2A.tmp.bat

Filesize
117B

MD5
9c032f3791b14fed6f2d530b3e34f1cc

SHA1
fdeec3478cfe4395d23df282a390c89ec8ff4e2f

SHA256
620b0b88afa60b8afe3c57da107fef8952b48d71a8fdc6cfc55f4ac94f656234

SHA512
480ed873cd2a41f024b0fc5bea0e3108dcf6ea926e2bdbcec154303fdfbbfcabfd0be7648e75da008cce3145a7993cb1d2810dbbc866c22efd78575918c70067

Download Submit
memory/2448-0-0x0000000074D1E000-0x0000000074D1F000-memory.dmp

Filesize
4KB

Download
memory/2448-1-0x0000000000E80000-0x0000000000EA2000-memory.dmp

Filesize
136KB

Download
memory/2448-2-0x0000000074D10000-0x00000000753FE000-memory.dmp

Filesize
6.9MB

Download
memory/2448-5-0x0000000074D10000-0x00000000753FE000-memory.dmp

Filesize
6.9MB

Download