912a840232ed2e5c93accb9fb8ed28f673242c6a64f15b58c5371ecdbbb19ee7

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
10/06/2024, 05:02

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-06-10_21f00153cfc98bfb9d43f7cb13f02b6e_bkransomware.exe
Size

71KB
MD5

21f00153cfc98bfb9d43f7cb13f02b6e
SHA1

05d7572596beb5c91f7e4132f1d0512c50959660
SHA256

912a840232ed2e5c93accb9fb8ed28f673242c6a64f15b58c5371ecdbbb19ee7
SHA512

f9d9d830e60aa880f408fb6919e2a84137cefe599b595c765ea8c098fbc440171d048cc2bad18c3818e6bcf9742a3a33cc58d80f8241cdc5d366cdeb05a41a15
SSDEEP

1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazTq:ZhpAyazIlyazTq

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4044	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"	CTS.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	2024-06-10_21f00153cfc98bfb9d43f7cb13f02b6e_bkransomware.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	2024-06-10_21f00153cfc98bfb9d43f7cb13f02b6e_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4512	2024-06-10_21f00153cfc98bfb9d43f7cb13f02b6e_bkransomware.exe
Token: SeDebugPrivilege	4044	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4512 wrote to memory of 4044	4512	2024-06-10_21f00153cfc98bfb9d43f7cb13f02b6e_bkransomware.exe	82
PID 4512 wrote to memory of 4044	4512	2024-06-10_21f00153cfc98bfb9d43f7cb13f02b6e_bkransomware.exe	82
PID 4512 wrote to memory of 4044	4512	2024-06-10_21f00153cfc98bfb9d43f7cb13f02b6e_bkransomware.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-06-10_21f00153cfc98bfb9d43f7cb13f02b6e_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-10_21f00153cfc98bfb9d43f7cb13f02b6e_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4512
- 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:4044

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\Microsoft\Office\16.0\excel.exe_Rules.xml

Filesize
394KB

MD5
e3c91da3d09b6fce1bbc94e51f238077

SHA1
c5f04b025d549748951f4e3cf11cedc83d257d3d

SHA256
0941cd6fccafa343a723a6f816e523f89e9702cfc14f8382ca6f219769bde253

SHA512
96b746b18b2f4e20b750a10598ed2ec82d997ecb7644e2b934fd9af6bca8ba97dadd2f298ba3a5faccadf51783bfb71a17475a7de1840a23047caf7e5d459417

Download Submit
C:\Users\Admin\AppData\Local\Temp\wjKd800IQkcDu2H.exe

Filesize
71KB

MD5
44df53c7f8cc50158032ed94f9763511

SHA1
d2699d2c2521e9d7ba5843c1b781969a4bdab51d

SHA256
9df05ddb425708f8917cbdb36b4b272459ae1e49215ec1a6ebc79d87c143900c

SHA512
52f45be0bff93827e1e78d60e93f101c60059b404dba5e08beb2998d8acb04ab7e50a6401af35003b53e9239b655cf79cb0fa5bbea05380942db63ffa4e965ea

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