ba1dbef6cfb96a2eb46e57e206cc6684ba752e66a0f6aa83978dbf74c7a75c03

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
05/06/2024, 02:26

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General

Target

2024-06-05_0ad26a109214aaffcbdc45438e0b70ac_bkransomware.exe
Size

71KB
MD5

0ad26a109214aaffcbdc45438e0b70ac
SHA1

1603102061ec5afc099c4e17636fb4d3771a674c
SHA256

ba1dbef6cfb96a2eb46e57e206cc6684ba752e66a0f6aa83978dbf74c7a75c03
SHA512

5074f0646d0232f6684a54f8d39513121243d8f4f7a04e2ef9f8cf69e98b94e127055099a68d1f2a8518b291d820a22486fefa3e9fc36f5daf6dff92cd483d7b
SSDEEP

1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazTq:ZhpAyazIlyazTq

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2192	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"	2024-06-05_0ad26a109214aaffcbdc45438e0b70ac_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	CTS.exe
File created	C:\Windows\CTS.exe	2024-06-05_0ad26a109214aaffcbdc45438e0b70ac_bkransomware.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2416	2024-06-05_0ad26a109214aaffcbdc45438e0b70ac_bkransomware.exe
Token: SeDebugPrivilege	2192	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2416 wrote to memory of 2192	2416	2024-06-05_0ad26a109214aaffcbdc45438e0b70ac_bkransomware.exe	28
PID 2416 wrote to memory of 2192	2416	2024-06-05_0ad26a109214aaffcbdc45438e0b70ac_bkransomware.exe	28
PID 2416 wrote to memory of 2192	2416	2024-06-05_0ad26a109214aaffcbdc45438e0b70ac_bkransomware.exe	28
PID 2416 wrote to memory of 2192	2416	2024-06-05_0ad26a109214aaffcbdc45438e0b70ac_bkransomware.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-05_0ad26a109214aaffcbdc45438e0b70ac_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-05_0ad26a109214aaffcbdc45438e0b70ac_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2416
- 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:2192

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\o4nmG5h57ya8tzK.exe

Filesize
71KB

MD5
7e2734cdf27e849e73476eaa75a0ce2d

SHA1
91da474b329a2fe62d518b36c74bbd113bbeb840

SHA256
4d1c53b25e668bbde44831863d2a0e76a3b90f4f8689148aa6e9d163d418bda6

SHA512
b4803b75bd41a2515408b771f06a7c0aff8a7270f13177b7c39c60834869cedbb4c326298cffb697cc2d5c8e8910a3fe79d9099402a51cb7c5b01b0db941cf18

Download Submit
C:\Windows\CTS.exe

Filesize
71KB

MD5
66df4ffab62e674af2e75b163563fc0b

SHA1
dec8a197312e41eeb3cfef01cb2a443f0205cd6e

SHA256
075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163

SHA512
1588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads