798e5e17c58a763c13cd105048c6fef8ad12d40cd3f334b63689a401d2fedd0d

Analysis

max time kernel
119s
max time network
125s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
24/04/2024, 21:33

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-04-24_c16c3e51f5867fcda4a9bd4d0d931ace_bkransomware.exe
Size

71KB
MD5

c16c3e51f5867fcda4a9bd4d0d931ace
SHA1

5ad8040dd7e385c9d06609913f3d492e72c256dc
SHA256

798e5e17c58a763c13cd105048c6fef8ad12d40cd3f334b63689a401d2fedd0d
SHA512

efb5cadc5b59e1fc8e4db9e8d7c8fe7fd2cb5de367f5b25eb6af9b9cf684e89f86b3f5c8503aaf886900bd82ce5b81ac5ea6f12423a024a733e04f552cd42eb8
SSDEEP

1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazT78:ZRpAyazIliazT78

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2216	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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	2024-04-24_c16c3e51f5867fcda4a9bd4d0d931ace_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

description	ioc	Process
File created	C:\Windows\CTS.exe	2024-04-24_c16c3e51f5867fcda4a9bd4d0d931ace_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1056	2024-04-24_c16c3e51f5867fcda4a9bd4d0d931ace_bkransomware.exe
Token: SeDebugPrivilege	2216	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1056 wrote to memory of 2216	1056	2024-04-24_c16c3e51f5867fcda4a9bd4d0d931ace_bkransomware.exe	28
PID 1056 wrote to memory of 2216	1056	2024-04-24_c16c3e51f5867fcda4a9bd4d0d931ace_bkransomware.exe	28
PID 1056 wrote to memory of 2216	1056	2024-04-24_c16c3e51f5867fcda4a9bd4d0d931ace_bkransomware.exe	28
PID 1056 wrote to memory of 2216	1056	2024-04-24_c16c3e51f5867fcda4a9bd4d0d931ace_bkransomware.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-24_c16c3e51f5867fcda4a9bd4d0d931ace_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-24_c16c3e51f5867fcda4a9bd4d0d931ace_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1056
- 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:2216

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\mxR3YxiO5G9NsJh.exe

Filesize
71KB

MD5
4c846815dcfa91b6b9a8bba0ddbe75fc

SHA1
f56e3726a3f0f611b32b2b033a3668bc95882894

SHA256
a8e1381bf1807b6ad52aef857d34d3b228d0d92d4fd3467ab4129b26c1e9006a

SHA512
5b8ba0fde37ef11847a3c36248e98f8619cbda90f9f18f5e50535a4899c610d77ce95150931656ae5cca99f0f2655c641ede07dea30a06d907e338621ec1f77f

Download Submit
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

Replay Monitor

Loading Replay Monitor...

Downloads