0b4029f5e50b052c2097903f2f96d120f5a253f96d2a0723d1bc2b272ae1da33

Analysis

max time kernel
131s
max time network
103s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
27/05/2024, 13:28

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-05-27_e9245927fdbc56e6ee46e6cecf082c59_bkransomware.exe
Size

71KB
MD5

e9245927fdbc56e6ee46e6cecf082c59
SHA1

dd0c0b2a4f50d2272ffa8b3e9e5a8e0f65c99933
SHA256

0b4029f5e50b052c2097903f2f96d120f5a253f96d2a0723d1bc2b272ae1da33
SHA512

81f3779a901e7d17574c8695f8e2e2298a3c11b953701ea8305a10b51cc7cbaa83372306fc5e82b42533b60ae636a8325e30ae5245eac9152650b7fa5b51d0fd
SSDEEP

1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTf:ZRpAyazIliazTf

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4248	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"	2024-05-27_e9245927fdbc56e6ee46e6cecf082c59_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	2024-05-27_e9245927fdbc56e6ee46e6cecf082c59_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1976	2024-05-27_e9245927fdbc56e6ee46e6cecf082c59_bkransomware.exe
Token: SeDebugPrivilege	4248	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1976 wrote to memory of 4248	1976	2024-05-27_e9245927fdbc56e6ee46e6cecf082c59_bkransomware.exe	83
PID 1976 wrote to memory of 4248	1976	2024-05-27_e9245927fdbc56e6ee46e6cecf082c59_bkransomware.exe	83
PID 1976 wrote to memory of 4248	1976	2024-05-27_e9245927fdbc56e6ee46e6cecf082c59_bkransomware.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-27_e9245927fdbc56e6ee46e6cecf082c59_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-27_e9245927fdbc56e6ee46e6cecf082c59_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1976
- 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:4248

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\Microsoft\Office\16.0\excel.exe_Rules.xml

Filesize
394KB

MD5
ef54dc98a4ae615017119f9516407412

SHA1
57ed2576b5c2a119b1e477d38e7bf59facd220f6

SHA256
18a3a6e5aba25adcac56e91bc038c3076829713fc4fb2fd5438a685d653cfd34

SHA512
bdc68c4ba95ce50e6821b78846259920b4bc35cd8673c93874affb2b59a804cb1bebda9390e67d49d7fc95dcd06e76cfbc86bbf0d7fb118864486bf2a82efc93

Download Submit
C:\Users\Admin\AppData\Local\Temp\HLP2PZhAdyFBHgJ.exe

Filesize
71KB

MD5
b8221edc83f71f995bd7420a467d34f6

SHA1
a35eb2f398136406c407d8a1c21f110479a6e46f

SHA256
08fb27ab0fbc6925757b6d44a186670573e0b8b004ad2e02851b0b3b1d004270

SHA512
38997395b94cfbd466de25d5ebb50295d7d77376526670f1f13146a38d138765ff36d353ff1db92ef62659fc817ee18f6bce78595e5e176b003511da702af280

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