8dc53ec5f43bca8d6549da6cf67b84ade2d8b2f3e7b38c728662e2b16edf617c

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
04/07/2024, 15:09

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-07-04_bb4627e18e75d6372e91afca246fe3f6_bkransomware.exe
Size

71KB
MD5

bb4627e18e75d6372e91afca246fe3f6
SHA1

6155f1a11bf259ae7d66e198e8a0af8894e74681
SHA256

8dc53ec5f43bca8d6549da6cf67b84ade2d8b2f3e7b38c728662e2b16edf617c
SHA512

4cc9502a8e7df9b7a56178a9385c95e461f239904618b4b31e1116ce87d0c2687474a5bb6b861c9783166ee7cbab4830f49ffe9d5149e3ea17cb4ede08ea5393
SSDEEP

1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTR:ZRpAyazIliazTR

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2660	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"	2024-07-04_bb4627e18e75d6372e91afca246fe3f6_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	2024-07-04_bb4627e18e75d6372e91afca246fe3f6_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1768	2024-07-04_bb4627e18e75d6372e91afca246fe3f6_bkransomware.exe
Token: SeDebugPrivilege	2660	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1768 wrote to memory of 2660	1768	2024-07-04_bb4627e18e75d6372e91afca246fe3f6_bkransomware.exe	28
PID 1768 wrote to memory of 2660	1768	2024-07-04_bb4627e18e75d6372e91afca246fe3f6_bkransomware.exe	28
PID 1768 wrote to memory of 2660	1768	2024-07-04_bb4627e18e75d6372e91afca246fe3f6_bkransomware.exe	28
PID 1768 wrote to memory of 2660	1768	2024-07-04_bb4627e18e75d6372e91afca246fe3f6_bkransomware.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-07-04_bb4627e18e75d6372e91afca246fe3f6_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-04_bb4627e18e75d6372e91afca246fe3f6_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1768
- 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:2660

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\eYdjQJeJLCynR87.exe

Filesize
71KB

MD5
2ea86618c1a0c6ff6a76f5d62178da6d

SHA1
597c928c891ca587f46fc7f038393dff6d5dec73

SHA256
c254f25d4487ef84b69ddd5ae23103a3b37b295d77f3d8ad9058320b27ba76ad

SHA512
80edfb089523f5c8b7a5242d047ae179de535893aa59ec5c163565754d1b9c8a4eaed72efc1629a227aca0271f142ecd00446d7dc3c905b9029d743af572bb8c

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