680d14d7e29bc5522617d861dc9cb03a3c7b778b7ce4c305b85cfe81801c90a8

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
24-05-2024 14:52

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General

Target

2024-05-24_566ded5cba460af30efa174d99fdf368_bkransomware.exe
Size

71KB
MD5

566ded5cba460af30efa174d99fdf368
SHA1

6803a0d485e650d5b53e371db9d404d87973bdd3
SHA256

680d14d7e29bc5522617d861dc9cb03a3c7b778b7ce4c305b85cfe81801c90a8
SHA512

7b7cf4f7beebb672546d8c4d5d819c145e6411c9c2d7705d77a95212dd8d5a48379953a25006f98ccf157fa1edef252d209ab7bc9b188a9c1dbb0dafa906e007
SSDEEP

1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazT0:ZRpAyazIliazT0

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

CTS.exe

pid process

2604 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
2604	CTS.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

CTS.exe2024-05-24_566ded5cba460af30efa174d99fdf368_bkransomware.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	CTS.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	2024-05-24_566ded5cba460af30efa174d99fdf368_bkransomware.exe

Drops file in Windows directory 2 IoCs

Processes:

2024-05-24_566ded5cba460af30efa174d99fdf368_bkransomware.exeCTS.exe

description ioc process

File created C:\Windows\CTS.exe 2024-05-24_566ded5cba460af30efa174d99fdf368_bkransomware.exe
File created C:\Windows\CTS.exe CTS.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

2024-05-24_566ded5cba460af30efa174d99fdf368_bkransomware.exeCTS.exe

description pid process

Token: SeDebugPrivilege 2972 2024-05-24_566ded5cba460af30efa174d99fdf368_bkransomware.exe
Token: SeDebugPrivilege 2604 CTS.exe

description	ioc	process
File created	C:\Windows\CTS.exe	2024-05-24_566ded5cba460af30efa174d99fdf368_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

description	pid	process
Token: SeDebugPrivilege	2972	2024-05-24_566ded5cba460af30efa174d99fdf368_bkransomware.exe
Token: SeDebugPrivilege	2604	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-24_566ded5cba460af30efa174d99fdf368_bkransomware.exe

description	pid	process	target process
PID 2972 wrote to memory of 2604	2972	2024-05-24_566ded5cba460af30efa174d99fdf368_bkransomware.exe	CTS.exe
PID 2972 wrote to memory of 2604	2972	2024-05-24_566ded5cba460af30efa174d99fdf368_bkransomware.exe	CTS.exe
PID 2972 wrote to memory of 2604	2972	2024-05-24_566ded5cba460af30efa174d99fdf368_bkransomware.exe	CTS.exe
PID 2972 wrote to memory of 2604	2972	2024-05-24_566ded5cba460af30efa174d99fdf368_bkransomware.exe	CTS.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-24_566ded5cba460af30efa174d99fdf368_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-24_566ded5cba460af30efa174d99fdf368_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2972

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:2604

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\OLrXTWlLEX6iSga.exe
Filesize
71KB

MD5
b1cab364986b83ae7ab28fecd15d8ced

SHA1
3b1be266794c1b92cdcb4badb84e8d1675855c85

SHA256
c9660b93b948640aa443f9bd18e9d95dea929df52fa3e06537824935e573d656

SHA512
f6925f047157b7718c9c5c379f5916398ac66cdff2ade7b4941537abd6a7f24e11fa4acf3f324b721a2d1fa46c5a4757b4b12b2a6521e4507a5a5fc60c56fd08

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C:\Windows\CTS.exe
Filesize
71KB

MD5
f9d4ab0a726adc9b5e4b7d7b724912f1

SHA1
3d42ca2098475924f70ee4a831c4f003b4682328

SHA256
b43be87e8586ca5e995979883468f3b3d9dc5212fbfd0b5f3341a5b7c56e0fbc

SHA512
22a5f0e4b2716244e978ee50771823926f86baf0382ece48fd049f039cf77b5eb0691d83c61148903cff081fdbea969f47b8ed521647717f42bbed5c64552432

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads