aa7ba767eddc92eb05c97623c5c0c0a4c5e016b8ae59743806e10dc116265710

Analysis

max time kernel
119s
max time network
124s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
10-05-2024 16:30

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-05-10_bb67884c73f0b65bca139475e0dc1b08_bkransomware.exe
Size

71KB
MD5

bb67884c73f0b65bca139475e0dc1b08
SHA1

4d6be9a72ff864a081679f6c120555887c136fea
SHA256

aa7ba767eddc92eb05c97623c5c0c0a4c5e016b8ae59743806e10dc116265710
SHA512

bea877b21a9bf34be743478284659184608f7c52b575e4fb9b7b6a2648b582caca016bf5ff5c17ac5903ccc353d5605aef017420099b0787726a640a23f3c66c
SSDEEP

1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazTt:ZhpAyazIlyazTt

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2888	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"	2024-05-10_bb67884c73f0b65bca139475e0dc1b08_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	2024-05-10_bb67884c73f0b65bca139475e0dc1b08_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2376	2024-05-10_bb67884c73f0b65bca139475e0dc1b08_bkransomware.exe
Token: SeDebugPrivilege	2888	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2376 wrote to memory of 2888	2376	2024-05-10_bb67884c73f0b65bca139475e0dc1b08_bkransomware.exe	28
PID 2376 wrote to memory of 2888	2376	2024-05-10_bb67884c73f0b65bca139475e0dc1b08_bkransomware.exe	28
PID 2376 wrote to memory of 2888	2376	2024-05-10_bb67884c73f0b65bca139475e0dc1b08_bkransomware.exe	28
PID 2376 wrote to memory of 2888	2376	2024-05-10_bb67884c73f0b65bca139475e0dc1b08_bkransomware.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-10_bb67884c73f0b65bca139475e0dc1b08_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-10_bb67884c73f0b65bca139475e0dc1b08_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2376
- 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:2888

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\Gj0aSRbtfEic34h.exe

Filesize
71KB

MD5
0a70f9a2c31af838351fbb58f74b5773

SHA1
a7d2708736093fd29a7fc483313e99352d5d259d

SHA256
7c0111b199cc771ac9136a7dcb5430824df168fbc241d2fdc57b9a1240ebdb8a

SHA512
f09c428b5a09891ecf08a5b9f20e269a6b4d6b20b3d201b2ad19581e2a0c5263dde4895fcec36f1c6ae6bf5f867c665c906aef64615351ecf6fa109fed6a1018

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