stormkitty | fcadb0f8b3f4d2f62ee32686bc4c9d93493145ae9720a28d0b2afffdf253e66d

Analysis

max time kernel
1565s
max time network
1569s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16-09-2024 18:00

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General

Target

test.exe
Size

71KB
MD5

9175e0d4944a8add7461d6b0f312e321
SHA1

92f40d5e927a96eff9c6916a651bb7e17dd0b31a
SHA256

fcadb0f8b3f4d2f62ee32686bc4c9d93493145ae9720a28d0b2afffdf253e66d
SHA512

4f5716a1353289dc58f2256832cd360fc138f031e5b7d791b4317576108efdf4a7f331382951862505ce4731604a54a32488feef360090db0f7fcac2135a1eb5
SSDEEP

1536:6ZbC2aJTIHzeerbZurGcywF3OKSW0QW0Qe:6ZOTIFbZu6i3OW0QWk

Score

10^/10

stormkitty xworm credential_access discovery rat spyware stealer trojan

Malware Config

Extracted

Family

xworm

147.185.221.16:40164

147.185.221.20:40164

Attributes

install_file
tmp.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2884-1-0x0000000001200000-0x0000000001218000-memory.dmp	family_xworm

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

StormKitty payload 1 IoCs

resource	yara_rule
behavioral1/memory/2884-6-0x000000001CFE0000-0x000000001D0FE000-memory.dmp	family_stormkitty

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Deletes itself 1 IoCs

pid	Process
2264	cmd.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

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
2	ip-api.com

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2792	timeout.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2884	test.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2884	test.exe
Token: SeDebugPrivilege	2884	test.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2884	test.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2884 wrote to memory of 2264	2884	test.exe	32
PID 2884 wrote to memory of 2264	2884	test.exe	32
PID 2884 wrote to memory of 2264	2884	test.exe	32
PID 2264 wrote to memory of 2792	2264	cmd.exe	34
PID 2264 wrote to memory of 2792	2264	cmd.exe	34
PID 2264 wrote to memory of 2792	2264	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\test.exe
"C:\Users\Admin\AppData\Local\Temp\test.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2884
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpD1C7.tmp.bat""
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:2264
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2792

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpD1C7.tmp.bat

Filesize
156B

MD5
d61b9f905a5f2cb8359f7729bea45290

SHA1
b0ffdccfafaf7b50f84ad3959d334cccb23ce528

SHA256
e4577f03cc97c843507ac5f5315a0a275829db5646acdafc3d4f903acc9aef1a

SHA512
aaa74befc8ecfcea69537cc476b546fe7d1d1c86b4970921b2ae52eecea4a6af817cab3b40b03045f6291e4065484ea4ffc0401ab6492edbe1d2fb92aec9acc6

Download Submit
memory/2884-0-0x000007FEF5793000-0x000007FEF5794000-memory.dmp

Filesize
4KB

Download
memory/2884-1-0x0000000001200000-0x0000000001218000-memory.dmp

Filesize
96KB

Download
memory/2884-2-0x000007FEF5790000-0x000007FEF617C000-memory.dmp

Filesize
9.9MB

Download
memory/2884-3-0x000007FEF5793000-0x000007FEF5794000-memory.dmp

Filesize
4KB

Download
memory/2884-4-0x000007FEF5790000-0x000007FEF617C000-memory.dmp

Filesize
9.9MB

Download
memory/2884-5-0x000000001DA50000-0x000000001DDA0000-memory.dmp

Filesize
3.3MB

Download
memory/2884-6-0x000000001CFE0000-0x000000001D0FE000-memory.dmp

Filesize
1.1MB

Download
memory/2884-38-0x000007FEF5790000-0x000007FEF617C000-memory.dmp

Filesize
9.9MB

Download