stormkitty | 1bbf4c9d2abb1b0fa5752c0f401cc1cb04fd6469622be6d87486aae73fdcce4b

Analysis

max time kernel
16s
max time network
21s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-02-2025 18:01

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General

Target

build.exe
Size

106KB
MD5

d493043aa0552958e41056bfb9ed5feb
SHA1

3bc3589ad6f4dd49d9b8286061abfebbfe9bf192
SHA256

1bbf4c9d2abb1b0fa5752c0f401cc1cb04fd6469622be6d87486aae73fdcce4b
SHA512

69a81f35a199307efd9a6b50f12a783c8b7439d6fca554a1d9a6d8405b0fe8e65acdf15df89a710d03acf6d9a0a176acf0ed9cdb4fd7bb0f666705821ec2ccee
SSDEEP

1536:87YfZJRZk79XP3yTigigkD2V37AUIuvQ7sG69bAdI4pxReUbpppybDQJ:s+RZk753yTwQOWQ7sR9bGpxReUbppz

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
behavioral1/memory/2128-1-0x0000000000A10000-0x0000000000A30000-memory.dmp	family_stormkitty

Stormkitty family
stormkitty

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	ip-api.com

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
2732	timeout.exe

Kills process with taskkill 1 IoCs

defense_evasion

pid	Process
2740	taskkill.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2128	build.exe
Token: SeDebugPrivilege	2740	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 2860	2128	build.exe	32
PID 2128 wrote to memory of 2860	2128	build.exe	32
PID 2128 wrote to memory of 2860	2128	build.exe	32
PID 2860 wrote to memory of 2772	2860	cmd.exe	34
PID 2860 wrote to memory of 2772	2860	cmd.exe	34
PID 2860 wrote to memory of 2772	2860	cmd.exe	34
PID 2860 wrote to memory of 2740	2860	cmd.exe	35
PID 2860 wrote to memory of 2740	2860	cmd.exe	35
PID 2860 wrote to memory of 2740	2860	cmd.exe	35
PID 2860 wrote to memory of 2732	2860	cmd.exe	36
PID 2860 wrote to memory of 2732	2860	cmd.exe	36
PID 2860 wrote to memory of 2732	2860	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\build.exe
"C:\Users\Admin\AppData\Local\Temp\build.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2128
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpF122.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmpF122.tmp.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2860
- - C:\Windows\system32\chcp.com
    chcp 65001
    3⤵
    PID:2772
- - C:\Windows\system32\taskkill.exe
    TaskKill /F /IM 2128
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2740
- - C:\Windows\system32\timeout.exe
    Timeout /T 2 /Nobreak
    3⤵
    - Delays execution with timeout.exe
    PID:2732

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\tmpF122.tmp.bat

Filesize
112B

MD5
49d4d93b7b5fece16753fe5cb9137bd9

SHA1
a4e83f658244421b7caeeaf8073a2bd81917bf32

SHA256
142b24dede1ddc272f2d2d67a8268042bc0ced29a85c71b6c122ff0e9cd5804b

SHA512
03e0c0964bbeecdb85397bc4a7feb605cb20925476e7f9b7e212f1b04ebfde70d510669cd3605a7d695a818493ef806e585482e161a3c8852e6b2e0514b394b9

Download Submit
memory/2128-0-0x000007FEF5213000-0x000007FEF5214000-memory.dmp

Filesize
4KB

Download
memory/2128-1-0x0000000000A10000-0x0000000000A30000-memory.dmp

Filesize
128KB

Download
memory/2128-2-0x000007FEF5210000-0x000007FEF5BFC000-memory.dmp

Filesize
9.9MB

Download
memory/2128-3-0x000007FEF5213000-0x000007FEF5214000-memory.dmp

Filesize
4KB

Download
memory/2128-4-0x000007FEF5210000-0x000007FEF5BFC000-memory.dmp

Filesize
9.9MB

Download
memory/2128-7-0x000007FEF5210000-0x000007FEF5BFC000-memory.dmp

Filesize
9.9MB

Download