be929682c214f9f18338b6ac9f0bfcb26568be9868ff8d178b253339966ea089

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
28-04-2024 01:23

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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

2132 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
2132	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 3060 2024-04-28_00d0cd13da85e9eed0b8c1d906834c68_bkransomware.exe
Token: SeDebugPrivilege 2132 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	3060	2024-04-28_00d0cd13da85e9eed0b8c1d906834c68_bkransomware.exe
Token: SeDebugPrivilege	2132	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-04-28_00d0cd13da85e9eed0b8c1d906834c68_bkransomware.exe

description	pid	process	target process
PID 3060 wrote to memory of 2132	3060	2024-04-28_00d0cd13da85e9eed0b8c1d906834c68_bkransomware.exe	CTS.exe
PID 3060 wrote to memory of 2132	3060	2024-04-28_00d0cd13da85e9eed0b8c1d906834c68_bkransomware.exe	CTS.exe
PID 3060 wrote to memory of 2132	3060	2024-04-28_00d0cd13da85e9eed0b8c1d906834c68_bkransomware.exe	CTS.exe
PID 3060 wrote to memory of 2132	3060	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:3060

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:2132

Network

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\qN3wW80AOWgkX7y.exe

Filesize
71KB

MD5
8d7a74b20a60154ac4d8fd2efbd6a4aa

SHA1
ecd37b2b7bdbfe3e9769cefd908677dd692dca0e

SHA256
4ceada9376bf8c20457a57889684a7d17fdd4915e214735365f62800be3edcef

SHA512
cc695c738ec057fc603fbcc0ad2193225da29487264da070a34a5379442a6eb02967a0c79f35b4f4b514ea7a2b4c47362f4bd5edfbb642a8dbcded110e1f977a

Download Submit
C:\Windows\CTS.exe

Filesize
71KB

MD5
f9d4ab0a726adc9b5e4b7d7b724912f1

SHA1
3d42ca2098475924f70ee4a831c4f003b4682328

SHA256
b43be87e8586ca5e995979883468f3b3d9dc5212fbfd0b5f3341a5b7c56e0fbc

SHA512
22a5f0e4b2716244e978ee50771823926f86baf0382ece48fd049f039cf77b5eb0691d83c61148903cff081fdbea969f47b8ed521647717f42bbed5c64552432

Download Submit