stormkitty | 399fcc26b309dfabe8985f6ef3d827a22e9efc6fcdcb21f61a9d601043f17c5b

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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
behavioral1/memory/2832-1-0x00000000000A0000-0x00000000000C2000-memory.dmp	family_stormkitty

Deletes itself 1 IoCs

pid	Process
2964	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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2704	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
3044	taskkill.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2832	StormKitty.exe
Token: SeDebugPrivilege	3044	taskkill.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2832 wrote to memory of 2964	2832	StormKitty.exe	32
PID 2832 wrote to memory of 2964	2832	StormKitty.exe	32
PID 2832 wrote to memory of 2964	2832	StormKitty.exe	32
PID 2832 wrote to memory of 2964	2832	StormKitty.exe	32
PID 2964 wrote to memory of 1700	2964	cmd.exe	34
PID 2964 wrote to memory of 1700	2964	cmd.exe	34
PID 2964 wrote to memory of 1700	2964	cmd.exe	34
PID 2964 wrote to memory of 1700	2964	cmd.exe	34
PID 2964 wrote to memory of 3044	2964	cmd.exe	35
PID 2964 wrote to memory of 3044	2964	cmd.exe	35
PID 2964 wrote to memory of 3044	2964	cmd.exe	35
PID 2964 wrote to memory of 3044	2964	cmd.exe	35
PID 2964 wrote to memory of 2704	2964	cmd.exe	36
PID 2964 wrote to memory of 2704	2964	cmd.exe	36
PID 2964 wrote to memory of 2704	2964	cmd.exe	36
PID 2964 wrote to memory of 2704	2964	cmd.exe	36

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:2832
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpE698.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmpE698.tmp.bat
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2964
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1700
- - C:\Windows\SysWOW64\taskkill.exe
    TaskKill /F /IM 2832
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3044
- - C:\Windows\SysWOW64\timeout.exe
    Timeout /T 2 /Nobreak
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2704

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\tmpE698.tmp.bat

Filesize
117B

MD5
06ca88a82a5ea3cfd5af72ebf7837018

SHA1
292cfadd831215d2f7e49c9fba61961bfbd4c42a

SHA256
f611d189445406e8de4d382b5d3541d3a8434db55479060b219630336f7563ec

SHA512
43c6762dc03ed0152c11be3281fbb335a10d17dcfaebdbb7c4e8f01afa9c9b6ddecf507fd42c98d96e3ac29f51124368e29082e9e411ae6b63fce8bca0b2a4c9

Download Submit
memory/2832-0-0x000000007489E000-0x000000007489F000-memory.dmp

Filesize
4KB

Download
memory/2832-1-0x00000000000A0000-0x00000000000C2000-memory.dmp

Filesize
136KB

Download
memory/2832-2-0x0000000074890000-0x0000000074F7E000-memory.dmp

Filesize
6.9MB

Download
memory/2832-5-0x0000000074890000-0x0000000074F7E000-memory.dmp

Filesize
6.9MB

Download