stormkitty | 39b268b299acc7944e2c3081c586b84003935761f22a98dbe2086181d4e697c7

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
31/03/2025, 02:36

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General

Target

builder/builder/stub/stub.exe
Size

107KB
MD5

eaa8de841b67c55c023f66729791a0d7
SHA1

1c6ebfb9a9bfa35dfd698876433ae521513fca81
SHA256

1eb1ec2ae87071342c03080d209fd4983c793204a88772187c7f764c4f4118fe
SHA512

6fff0b607ed1d29344acdd85b7d4b5e64cfc03b3ad9fc9bb9fca64ccf9021d527b78f6417fd811385c37cd5905b56e03793175c37f84878ad483d0edaede92ac
SSDEEP

3072:X2ZYhX5B/BrwRlilIEtBeQ7sR9bGpxRBU6pY2z:fhX5e4l5e8u9bY

Score

10^/10

stormkitty stealer

Malware Config

Signatures

StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 1 IoCs

resource	yara_rule
behavioral11/memory/2816-1-0x000000013F440000-0x000000013F460000-memory.dmp	family_stormkitty

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
2524	timeout.exe

Kills process with taskkill 1 IoCs

defense_evasion

pid	Process
2708	taskkill.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2816	stub.exe
Token: SeDebugPrivilege	2708	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2816 wrote to memory of 2988	2816	stub.exe	31
PID 2816 wrote to memory of 2988	2816	stub.exe	31
PID 2816 wrote to memory of 2988	2816	stub.exe	31
PID 2988 wrote to memory of 2692	2988	cmd.exe	33
PID 2988 wrote to memory of 2692	2988	cmd.exe	33
PID 2988 wrote to memory of 2692	2988	cmd.exe	33
PID 2988 wrote to memory of 2708	2988	cmd.exe	34
PID 2988 wrote to memory of 2708	2988	cmd.exe	34
PID 2988 wrote to memory of 2708	2988	cmd.exe	34
PID 2988 wrote to memory of 2524	2988	cmd.exe	35
PID 2988 wrote to memory of 2524	2988	cmd.exe	35
PID 2988 wrote to memory of 2524	2988	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\builder\builder\stub\stub.exe
"C:\Users\Admin\AppData\Local\Temp\builder\builder\stub\stub.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2816
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp6B9F.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmp6B9F.tmp.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2988
- - C:\Windows\system32\chcp.com
    chcp 65001
    3⤵
    PID:2692
- - C:\Windows\system32\taskkill.exe
    TaskKill /F /IM 2816
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2708
- - C:\Windows\system32\timeout.exe
    Timeout /T 2 /Nobreak
    3⤵
    - Delays execution with timeout.exe
    PID:2524

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp6B9F.tmp.bat

Filesize
132B

MD5
7257c59c5ae400e8778017638c71f1c5

SHA1
5f05c7f66e2762d54bf4695a56f4671ab476bed5

SHA256
b32ea7201f341e49aab7365fac54dde60093c1ad76a5cc42ed8bda1ba757c45e

SHA512
dca615db4bb4ea0413675191017aeef2b2ef021fac64923e16e23b349fd64393f82c4f966d0e69201d5a1f394fc5e759b640d509f836968e4f1d8cd95f70c019

Download Submit
memory/2816-0-0x000007FEF53F3000-0x000007FEF53F4000-memory.dmp

Filesize
4KB

Download
memory/2816-1-0x000000013F440000-0x000000013F460000-memory.dmp

Filesize
128KB

Download
memory/2816-2-0x000007FEF53F0000-0x000007FEF5DDC000-memory.dmp

Filesize
9.9MB

Download
memory/2816-5-0x000007FEF53F0000-0x000007FEF5DDC000-memory.dmp

Filesize
9.9MB

Download