2b393806ee0955c3884cc55ecce55f7f7b912c577d9246f0069947f62ba5d2df

Analysis

max time kernel
121s
max time network
124s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/06/2024, 15:52

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-06-10_54c699af5550a9a1cd98d7d11f6edd47_bkransomware.exe
Size

71KB
MD5

54c699af5550a9a1cd98d7d11f6edd47
SHA1

333ab8c5de850705b84376f26c6113005aa36dc0
SHA256

2b393806ee0955c3884cc55ecce55f7f7b912c577d9246f0069947f62ba5d2df
SHA512

9d9e32b65350fc4cc153a815ef60f92dc8654fad066bb605222cce87bca828cc1b8a328b8b6fd01d2897b0c693dcd8d1e54f3cfa49ec94030dc4fc91fda73e37
SSDEEP

1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazTr:ZhpAyazIlyazTr

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1032	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"	2024-06-10_54c699af5550a9a1cd98d7d11f6edd47_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	2024-06-10_54c699af5550a9a1cd98d7d11f6edd47_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1976	2024-06-10_54c699af5550a9a1cd98d7d11f6edd47_bkransomware.exe
Token: SeDebugPrivilege	1032	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1976 wrote to memory of 1032	1976	2024-06-10_54c699af5550a9a1cd98d7d11f6edd47_bkransomware.exe	28
PID 1976 wrote to memory of 1032	1976	2024-06-10_54c699af5550a9a1cd98d7d11f6edd47_bkransomware.exe	28
PID 1976 wrote to memory of 1032	1976	2024-06-10_54c699af5550a9a1cd98d7d11f6edd47_bkransomware.exe	28
PID 1976 wrote to memory of 1032	1976	2024-06-10_54c699af5550a9a1cd98d7d11f6edd47_bkransomware.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-10_54c699af5550a9a1cd98d7d11f6edd47_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-10_54c699af5550a9a1cd98d7d11f6edd47_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:1032

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\Dtn6t3qZn9Jsxiz.exe

Filesize
71KB

MD5
0f5b53c68eed903faaf57b6a8493af25

SHA1
3bf16cc51eefcb1762dbc3d6c0642b64ebaa61e3

SHA256
443202d2f519fdd9e95814af700a7f997b0ccaef3b7616bdd4271248814a80fb

SHA512
adec16c107c152028cf11d0d2cb8c259af4cabf66012fdbc43abce46bea0665fd50fc2d0051a1a61e6fafffde865f29c0390a7746e7a79212546ca24c5dc539b

Download Submit
C:\Windows\CTS.exe

Filesize
71KB

MD5
66df4ffab62e674af2e75b163563fc0b

SHA1
dec8a197312e41eeb3cfef01cb2a443f0205cd6e

SHA256
075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163

SHA512
1588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads