656baa2cb933e9ef4ddf10eeea8612cb59d422ea4192e64be5cf649924a064fb

Analysis

max time kernel
120s
max time network
123s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
05/07/2024, 02:31

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-07-05_7d17c2148c09a8d9e88fffcbb810329a_bkransomware.exe
Size

71KB
MD5

7d17c2148c09a8d9e88fffcbb810329a
SHA1

cc1feb0bb0ea3a1a23a3ae3085fcea2e2af43c09
SHA256

656baa2cb933e9ef4ddf10eeea8612cb59d422ea4192e64be5cf649924a064fb
SHA512

bf8dce5531e652c08171b041489601a77ef236f6c7c323d52773298c414665a3a37252b896c70775c35986499499fe40f400e0045c8c2425be6246d502df5e27
SSDEEP

1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazT9:ZRpAyazIliazT9

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2244	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"	2024-07-05_7d17c2148c09a8d9e88fffcbb810329a_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	2024-07-05_7d17c2148c09a8d9e88fffcbb810329a_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	808	2024-07-05_7d17c2148c09a8d9e88fffcbb810329a_bkransomware.exe
Token: SeDebugPrivilege	2244	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 808 wrote to memory of 2244	808	2024-07-05_7d17c2148c09a8d9e88fffcbb810329a_bkransomware.exe	30
PID 808 wrote to memory of 2244	808	2024-07-05_7d17c2148c09a8d9e88fffcbb810329a_bkransomware.exe	30
PID 808 wrote to memory of 2244	808	2024-07-05_7d17c2148c09a8d9e88fffcbb810329a_bkransomware.exe	30
PID 808 wrote to memory of 2244	808	2024-07-05_7d17c2148c09a8d9e88fffcbb810329a_bkransomware.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-07-05_7d17c2148c09a8d9e88fffcbb810329a_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-05_7d17c2148c09a8d9e88fffcbb810329a_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:808
- 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:2244

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\NNANhMbZPtY3JY7.exe

Filesize
71KB

MD5
e975671b0767960d80253870c897c671

SHA1
af252e96113835b9192b820e6b48f8b2991e014d

SHA256
61fde96ab7862b47025cb834ced0c5f6654c2c14adc3392296425cdb1a04e08d

SHA512
26728779ef7309b10b9cf5d2c0cbf20a65e49ebca14fa8a68eb45c04205bf167cf9bb7c0eab92428cccc18f8ee879f482950dd69ebc12ef53a74c7b098994265

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