be929682c214f9f18338b6ac9f0bfcb26568be9868ff8d178b253339966ea089

Analysis

max time kernel
94s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
28-04-2024 01:23

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-04-28_00d0cd13da85e9eed0b8c1d906834c68_bkransomware.exe
Size

71KB
MD5

00d0cd13da85e9eed0b8c1d906834c68
SHA1

f4cdcaf5105be045c76792b7998d33a9a602cecf
SHA256

be929682c214f9f18338b6ac9f0bfcb26568be9868ff8d178b253339966ea089
SHA512

317ea49cd869a5a10715b90aabbddc535fda4a9b98d329776b337a4cd137d7cb75a153f72052bf745d9da1b662f74c8590c8ccc4a2e234cf3220f99722ec9717
SSDEEP

1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTD:ZRpAyazIliazTD

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

CTS.exe

pid process

5352 CTS.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

pid	process
5352	CTS.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2024-04-28_00d0cd13da85e9eed0b8c1d906834c68_bkransomware.exeCTS.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	2024-04-28_00d0cd13da85e9eed0b8c1d906834c68_bkransomware.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	CTS.exe

Drops file in Windows directory 2 IoCs

Processes:

2024-04-28_00d0cd13da85e9eed0b8c1d906834c68_bkransomware.exeCTS.exe

description ioc process

File created C:\Windows\CTS.exe 2024-04-28_00d0cd13da85e9eed0b8c1d906834c68_bkransomware.exe
File created C:\Windows\CTS.exe CTS.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

2024-04-28_00d0cd13da85e9eed0b8c1d906834c68_bkransomware.exeCTS.exe

description pid process

Token: SeDebugPrivilege 4444 2024-04-28_00d0cd13da85e9eed0b8c1d906834c68_bkransomware.exe
Token: SeDebugPrivilege 5352 CTS.exe

description	ioc	process
File created	C:\Windows\CTS.exe	2024-04-28_00d0cd13da85e9eed0b8c1d906834c68_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

description	pid	process
Token: SeDebugPrivilege	4444	2024-04-28_00d0cd13da85e9eed0b8c1d906834c68_bkransomware.exe
Token: SeDebugPrivilege	5352	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-04-28_00d0cd13da85e9eed0b8c1d906834c68_bkransomware.exe

description	pid	process	target process
PID 4444 wrote to memory of 5352	4444	2024-04-28_00d0cd13da85e9eed0b8c1d906834c68_bkransomware.exe	CTS.exe
PID 4444 wrote to memory of 5352	4444	2024-04-28_00d0cd13da85e9eed0b8c1d906834c68_bkransomware.exe	CTS.exe
PID 4444 wrote to memory of 5352	4444	2024-04-28_00d0cd13da85e9eed0b8c1d906834c68_bkransomware.exe	CTS.exe

C:\Users\Admin\AppData\Local\Temp\2024-04-28_00d0cd13da85e9eed0b8c1d906834c68_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-28_00d0cd13da85e9eed0b8c1d906834c68_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4444

C:\Windows\CTS.exe
"C:\Windows\CTS.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:5352

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml
Filesize
392KB

MD5
5cffd23621bad308d522b6bcdbb25143

SHA1
3352ea27fb0e0437e2c59d62359340f2d0d042bc

SHA256
7c68a1846c3eb9b458eea06b4169e2ed0c78c14cf83e43be944764a2b91fc06e

SHA512
76650c7a79430148a77c764b65d858eb055d456997b7aee7561a2e2b7865860a56ecf585679801d8c806ca0c784696c7f44daa70cd1fad9e9bd352999ca346f0

Download Submit
C:\Users\Admin\AppData\Local\Temp\RxJJsqPm0pyO91v.exe
Filesize
71KB

MD5
10a5729018dd13edcdf213e8a5d286c6

SHA1
e38709f7ba29e0e3691d0c859d8986158b9e5300

SHA256
e7351cba220f3e4fb671649569bcf777a48e600f0f98929fc180113f0d1a4172

SHA512
97db48269b6c4ab9878b5639f6f42d715adab3130c1e98d0c241416268dde0d36c9b3d85f67c397168493f2f468c33805d14b3713685fb70dae662f11da15310

Download Submit
C:\Windows\CTS.exe
Filesize
71KB

MD5
f9d4ab0a726adc9b5e4b7d7b724912f1

SHA1
3d42ca2098475924f70ee4a831c4f003b4682328

SHA256
b43be87e8586ca5e995979883468f3b3d9dc5212fbfd0b5f3341a5b7c56e0fbc

SHA512
22a5f0e4b2716244e978ee50771823926f86baf0382ece48fd049f039cf77b5eb0691d83c61148903cff081fdbea969f47b8ed521647717f42bbed5c64552432

Download Submit