a275f2b743c33398dfda87aa1b7ffdd3947034be5faaa109e2a470dfa46ec553

Analysis

max time kernel
122s
max time network
122s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
24-05-2024 21:37

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General

Target

2024-05-24_7ecf7ff4c92145dd9cc31c32232b37c8_bkransomware.exe
Size

71KB
MD5

7ecf7ff4c92145dd9cc31c32232b37c8
SHA1

3384a8808c8f5fdc5a7fe4880e23cb9ee35d977a
SHA256

a275f2b743c33398dfda87aa1b7ffdd3947034be5faaa109e2a470dfa46ec553
SHA512

f8ecd7799a7c51336522a13869bf147cc50c6b24eb578f36ef1302f04f247f307c02f062d41ff5350f367335d9ebafbf3e2e479ef95559acefda20d7b6a7152c
SSDEEP

1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTu:ZRpAyazIliazTu

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

CTS.exe

pid process

2112 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
2112	CTS.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2024-05-24_7ecf7ff4c92145dd9cc31c32232b37c8_bkransomware.exeCTS.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	2024-05-24_7ecf7ff4c92145dd9cc31c32232b37c8_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:

CTS.exe2024-05-24_7ecf7ff4c92145dd9cc31c32232b37c8_bkransomware.exe

description ioc process

File created C:\Windows\CTS.exe CTS.exe
File created C:\Windows\CTS.exe 2024-05-24_7ecf7ff4c92145dd9cc31c32232b37c8_bkransomware.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

2024-05-24_7ecf7ff4c92145dd9cc31c32232b37c8_bkransomware.exeCTS.exe

description pid process

Token: SeDebugPrivilege 2548 2024-05-24_7ecf7ff4c92145dd9cc31c32232b37c8_bkransomware.exe
Token: SeDebugPrivilege 2112 CTS.exe

description	ioc	process
File created	C:\Windows\CTS.exe	CTS.exe
File created	C:\Windows\CTS.exe	2024-05-24_7ecf7ff4c92145dd9cc31c32232b37c8_bkransomware.exe

description	pid	process
Token: SeDebugPrivilege	2548	2024-05-24_7ecf7ff4c92145dd9cc31c32232b37c8_bkransomware.exe
Token: SeDebugPrivilege	2112	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-24_7ecf7ff4c92145dd9cc31c32232b37c8_bkransomware.exe

description	pid	process	target process
PID 2548 wrote to memory of 2112	2548	2024-05-24_7ecf7ff4c92145dd9cc31c32232b37c8_bkransomware.exe	CTS.exe
PID 2548 wrote to memory of 2112	2548	2024-05-24_7ecf7ff4c92145dd9cc31c32232b37c8_bkransomware.exe	CTS.exe
PID 2548 wrote to memory of 2112	2548	2024-05-24_7ecf7ff4c92145dd9cc31c32232b37c8_bkransomware.exe	CTS.exe
PID 2548 wrote to memory of 2112	2548	2024-05-24_7ecf7ff4c92145dd9cc31c32232b37c8_bkransomware.exe	CTS.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-24_7ecf7ff4c92145dd9cc31c32232b37c8_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-24_7ecf7ff4c92145dd9cc31c32232b37c8_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2548

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:2112

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\4u7c5QFu2MlUj5H.exe
Filesize
71KB

MD5
1811b47c142478c43174df9e5d873137

SHA1
d5e4e96a729d1bc0a8a4af12085ce08874edfbb1

SHA256
3c2bcb801be5af811a732f6664cc87e455efe3de7ee8fca24d405da61e01f8c1

SHA512
e391375cfa3f7f25f5f611c4eaa0e409ca1b7d1523dde46c5b8fe9dd41e9ef24e17991695b600f967d5f1ee06acce98bdfce8bb8e6aa1fde3275ad7bfdaf3d97

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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