stormkitty | bd0232d8961ab07c52d33c336b2ae22801537def43785e959eb4982149983b9f

Analysis

max time kernel
74s
max time network
79s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06-10-2024 18:57

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General

Target

wefwf.exe
Size

57KB
MD5

ee3d8afb08a2a88928c2b3edaefef4b5
SHA1

7224ca79a5675b2d097b112ac05cd295cfabdb59
SHA256

bd0232d8961ab07c52d33c336b2ae22801537def43785e959eb4982149983b9f
SHA512

1e052b8b72e8912a6917049108df7639983d81b39cce266ef3d45fdef213af3eea585db05050635baf4da4c734f49a7cf544faf0923293ed9fc9c55e6e9f60c6
SSDEEP

1536:regNzd4DXSx6euMSgbqMvdFeUEG6jOqaX:SKzd/Q8TbqKhELOq+

Score

10^/10

stormkitty xworm discovery rat spyware stealer trojan

Malware Config

Extracted

Family

xworm

147.185.221.16:40164

147.185.221.20:40164

Attributes

install_file
System Volume Information Prefetch.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/2444-1-0x0000000000F50000-0x0000000000F64000-memory.dmp	family_xworm

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

StormKitty payload 1 IoCs

resource	yara_rule
behavioral2/memory/2444-7-0x000000001DEC0000-0x000000001DFDE000-memory.dmp	family_stormkitty

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

Executes dropped EXE 1 IoCs

pid	Process
2108	Bootstrapper.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

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
50	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
4036	timeout.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2444	wefwf.exe
Token: SeDebugPrivilege	2108	Bootstrapper.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2444 wrote to memory of 532	2444	wefwf.exe	99
PID 2444 wrote to memory of 532	2444	wefwf.exe	99
PID 532 wrote to memory of 4036	532	cmd.exe	101
PID 532 wrote to memory of 4036	532	cmd.exe	101

C:\Users\Admin\AppData\Local\Temp\wefwf.exe
"C:\Users\Admin\AppData\Local\Temp\wefwf.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpA715.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:532
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:4036

C:\Users\Admin\Desktop\Bootstrapper.exe
"C:\Users\Admin\Desktop\Bootstrapper.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2108

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpA715.tmp.bat

Filesize
157B

MD5
15329ff40830288b83bb47b744f0a99b

SHA1
27404c2757dfb839c341503357938031604ea650

SHA256
9d8ef5f0e9e6c46b591ae07bce0673830189d1d769a007d8eb31e37af5d69836

SHA512
c9bb3fb15036f68b90fa7a7ff1dbb64b66364b43fa8a98ddd586104c1c9981108f8fa8e1868d47737cfc215c136d0b958cea128a3ffc3598b0cd3c292aebe26b

Download Submit
C:\Users\Admin\Desktop\Bootstrapper.exe

Filesize
386KB

MD5
abde55608b2a0224319c069bec68c8e9

SHA1
a6be09d141540d5528bea5fca09b373c69b91eb5

SHA256
8f02b949f2b590d3edd006048254aade7e05b62bb7d40dcb1e8871a8fad2aff8

SHA512
5f90a919edc7f8b89347b8e2653c4d0323334398b79a72df67cec92323686a6ac5743df600869bc2cef790db94fcef0ea96b1e9b7f03afa8227e5d2e9a6001cc

Download Submit
memory/2108-54-0x00007FFCD1980000-0x00007FFCD2441000-memory.dmp

Filesize
10.8MB

Download
memory/2108-53-0x00007FFCD1980000-0x00007FFCD2441000-memory.dmp

Filesize
10.8MB

Download
memory/2108-52-0x00007FFCD1980000-0x00007FFCD2441000-memory.dmp

Filesize
10.8MB

Download
memory/2108-51-0x0000000000C50000-0x0000000000CB6000-memory.dmp

Filesize
408KB

Download
memory/2444-4-0x00007FFCD1980000-0x00007FFCD2441000-memory.dmp

Filesize
10.8MB

Download
memory/2444-7-0x000000001DEC0000-0x000000001DFDE000-memory.dmp

Filesize
1.1MB

Download
memory/2444-46-0x000000001C3B0000-0x000000001C3D2000-memory.dmp

Filesize
136KB

Download
memory/2444-47-0x000000001E920000-0x000000001EC70000-memory.dmp

Filesize
3.3MB

Download
memory/2444-6-0x000000001E3F0000-0x000000001E918000-memory.dmp

Filesize
5.2MB

Download
memory/2444-5-0x000000001DC10000-0x000000001DCC0000-memory.dmp

Filesize
704KB

Download
memory/2444-0-0x00007FFCD1983000-0x00007FFCD1985000-memory.dmp

Filesize
8KB

Download
memory/2444-3-0x00007FFCD1983000-0x00007FFCD1985000-memory.dmp

Filesize
8KB

Download
memory/2444-2-0x00007FFCD1980000-0x00007FFCD2441000-memory.dmp

Filesize
10.8MB

Download
memory/2444-1-0x0000000000F50000-0x0000000000F64000-memory.dmp

Filesize
80KB

Download
memory/2444-59-0x00007FFCD1980000-0x00007FFCD2441000-memory.dmp

Filesize
10.8MB

Download