3bacf23201cf6ff5400085f78bf933ac52c58c080d15ad989d4d264d9c292be0

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
01/06/2024, 01:27

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General

Target

2024-06-01_095e5235968fe6085e727fe802a955b3_bkransomware.exe
Size

71KB
MD5

095e5235968fe6085e727fe802a955b3
SHA1

8fdb05f3aeb6bb074076d814da6cee2f124b4275
SHA256

3bacf23201cf6ff5400085f78bf933ac52c58c080d15ad989d4d264d9c292be0
SHA512

09a533302d1b0454bc4e85bfd28185c72874f3c55600e17077b5b188caccf84dbf8fd1d92bd9c12320eb36fec5bb33012f2935ab7fc95bd421cc5abd9bc649a0
SSDEEP

1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTR:ZRpAyazIliazTR

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1932	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"	2024-06-01_095e5235968fe6085e727fe802a955b3_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	2024-06-01_095e5235968fe6085e727fe802a955b3_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2796	2024-06-01_095e5235968fe6085e727fe802a955b3_bkransomware.exe
Token: SeDebugPrivilege	1932	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2796 wrote to memory of 1932	2796	2024-06-01_095e5235968fe6085e727fe802a955b3_bkransomware.exe	28
PID 2796 wrote to memory of 1932	2796	2024-06-01_095e5235968fe6085e727fe802a955b3_bkransomware.exe	28
PID 2796 wrote to memory of 1932	2796	2024-06-01_095e5235968fe6085e727fe802a955b3_bkransomware.exe	28
PID 2796 wrote to memory of 1932	2796	2024-06-01_095e5235968fe6085e727fe802a955b3_bkransomware.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-01_095e5235968fe6085e727fe802a955b3_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-01_095e5235968fe6085e727fe802a955b3_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2796
- 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:1932

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\GX7t9SYoO6Jdvyc.exe

Filesize
71KB

MD5
f3618879ff650945cff38ae40afee842

SHA1
7c21bb513808c486634287b9291b6758955e6bbc

SHA256
b87c3fac7c71fdd332446657f1cc086a90bab7be6d12fef02e4767ae5029da84

SHA512
3fecfbcb1c884ee159fe54c2df6b4f0da25bcc25812c1a43635db000171d260f99ca46bad0977d1bcd601eec6a3c13f4aa5addbf4e4313fabd7d363d2d378592

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C:\Windows\CTS.exe

Filesize
71KB

MD5
f9d4ab0a726adc9b5e4b7d7b724912f1

SHA1
3d42ca2098475924f70ee4a831c4f003b4682328

SHA256
b43be87e8586ca5e995979883468f3b3d9dc5212fbfd0b5f3341a5b7c56e0fbc

SHA512
22a5f0e4b2716244e978ee50771823926f86baf0382ece48fd049f039cf77b5eb0691d83c61148903cff081fdbea969f47b8ed521647717f42bbed5c64552432

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads