stormkitty | fcadb0f8b3f4d2f62ee32686bc4c9d93493145ae9720a28d0b2afffdf253e66d

General

Target

fcadb0f8b3f4d2f62ee32686bc4c9d93493145ae9720a28d0b2afffdf253e66d.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

C2

147.185.221.16:40164

147.185.221.20:40164

Attributes

install_file
tmp.exe

Signatures

Contains code to disable Windows Defender 1 IoCs

A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

Processes:

resource	yara_rule
behavioral1/memory/2128-30-0x0000000000430000-0x000000000043E000-memory.dmp	disable_win_def

Detect Xworm Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2128-1-0x0000000001050000-0x0000000001068000-memory.dmp	family_xworm

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

StormKitty payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2128-6-0x000000001D6F0000-0x000000001D80E000-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

Processes:

cmd.exe

pid process

568 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.

Processes:

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

Processes:

timeout.exe

pid process

604 timeout.exe

pid	process
568	cmd.exe

flow	ioc
2	ip-api.com

pid	process
604	timeout.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

fcadb0f8b3f4d2f62ee32686bc4c9d93493145ae9720a28d0b2afffdf253e66d.exe

pid	process
2128	fcadb0f8b3f4d2f62ee32686bc4c9d93493145ae9720a28d0b2afffdf253e66d.exe
2128	fcadb0f8b3f4d2f62ee32686bc4c9d93493145ae9720a28d0b2afffdf253e66d.exe
2128	fcadb0f8b3f4d2f62ee32686bc4c9d93493145ae9720a28d0b2afffdf253e66d.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

fcadb0f8b3f4d2f62ee32686bc4c9d93493145ae9720a28d0b2afffdf253e66d.exe

description	pid	process
Token: SeDebugPrivilege	2128	fcadb0f8b3f4d2f62ee32686bc4c9d93493145ae9720a28d0b2afffdf253e66d.exe
Token: SeDebugPrivilege	2128	fcadb0f8b3f4d2f62ee32686bc4c9d93493145ae9720a28d0b2afffdf253e66d.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

fcadb0f8b3f4d2f62ee32686bc4c9d93493145ae9720a28d0b2afffdf253e66d.exe

pid process

2128 fcadb0f8b3f4d2f62ee32686bc4c9d93493145ae9720a28d0b2afffdf253e66d.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

fcadb0f8b3f4d2f62ee32686bc4c9d93493145ae9720a28d0b2afffdf253e66d.execmd.exe

description	pid	process	target process
PID 2128 wrote to memory of 568	2128	fcadb0f8b3f4d2f62ee32686bc4c9d93493145ae9720a28d0b2afffdf253e66d.exe	cmd.exe
PID 2128 wrote to memory of 568	2128	fcadb0f8b3f4d2f62ee32686bc4c9d93493145ae9720a28d0b2afffdf253e66d.exe	cmd.exe
PID 2128 wrote to memory of 568	2128	fcadb0f8b3f4d2f62ee32686bc4c9d93493145ae9720a28d0b2afffdf253e66d.exe	cmd.exe
PID 568 wrote to memory of 604	568	cmd.exe	timeout.exe
PID 568 wrote to memory of 604	568	cmd.exe	timeout.exe
PID 568 wrote to memory of 604	568	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\fcadb0f8b3f4d2f62ee32686bc4c9d93493145ae9720a28d0b2afffdf253e66d.exe
"C:\Users\Admin\AppData\Local\Temp\fcadb0f8b3f4d2f62ee32686bc4c9d93493145ae9720a28d0b2afffdf253e66d.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2128
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpF04F.tmp.bat""
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:568
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:604

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Browser Information Discovery

1

T1217

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpF04F.tmp.bat

Filesize
216B

MD5
1a3edfeed24cbc2559c4538e33adc765

SHA1
f2d09303a1255dff8aa069b3a27ff0f5d9e46b08

SHA256
8b219eefa7c2cd4817e0b6c78402b549319ae1efa44ee1aa47e90d24a0b66316

SHA512
79986b43dea8b966f249c24006cd43c4acfd937c9db8727c4828034f683c985cd6427c94876a6a409ccfce2a900fb18cba3c10bf2b0af797e304fc9e482a6f25

Download Submit
memory/2128-0-0x000007FEF59E3000-0x000007FEF59E4000-memory.dmp

Filesize
4KB

Download
memory/2128-1-0x0000000001050000-0x0000000001068000-memory.dmp

Filesize
96KB

Download
memory/2128-2-0x000007FEF59E0000-0x000007FEF63CC000-memory.dmp

Filesize
9.9MB

Download
memory/2128-3-0x000007FEF59E3000-0x000007FEF59E4000-memory.dmp

Filesize
4KB

Download
memory/2128-4-0x000007FEF59E0000-0x000007FEF63CC000-memory.dmp

Filesize
9.9MB

Download
memory/2128-5-0x000000001D9E0000-0x000000001DD30000-memory.dmp

Filesize
3.3MB

Download
memory/2128-6-0x000000001D6F0000-0x000000001D80E000-memory.dmp

Filesize
1.1MB

Download
memory/2128-30-0x0000000000430000-0x000000000043E000-memory.dmp

Filesize
56KB

Download
memory/2128-39-0x000007FEF59E0000-0x000007FEF63CC000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads