d9d4ee0730e2516e25b7f372f03e9b15602bec3f96298c879fcb416b990cb106

Analysis

max time kernel
133s
max time network
102s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
04-05-2024 09:10

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-05-04_f44dbed0e7afe11556188813945252f4_bkransomware.exe
Size

71KB
MD5

f44dbed0e7afe11556188813945252f4
SHA1

9235d6e6dc4760a61b487ee58891b00cb738d77c
SHA256

d9d4ee0730e2516e25b7f372f03e9b15602bec3f96298c879fcb416b990cb106
SHA512

05fc74a0b8bd8105493f17777eb1c02cbe7f719af6eda730584f4afc035ae482a7e9dfff8cdf46ab69bca2fe1f5e525462b786e981419d3c1cef72af585c4e70
SSDEEP

1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazT6F:ZhpAyazIlyazTw

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4572	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"	2024-05-04_f44dbed0e7afe11556188813945252f4_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	2024-05-04_f44dbed0e7afe11556188813945252f4_bkransomware.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1468	2024-05-04_f44dbed0e7afe11556188813945252f4_bkransomware.exe
Token: SeDebugPrivilege	4572	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1468 wrote to memory of 4572	1468	2024-05-04_f44dbed0e7afe11556188813945252f4_bkransomware.exe	84
PID 1468 wrote to memory of 4572	1468	2024-05-04_f44dbed0e7afe11556188813945252f4_bkransomware.exe	84
PID 1468 wrote to memory of 4572	1468	2024-05-04_f44dbed0e7afe11556188813945252f4_bkransomware.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-05-04_f44dbed0e7afe11556188813945252f4_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-04_f44dbed0e7afe11556188813945252f4_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1468
- 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:4572

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
392KB

MD5
e69dde4fb92edb4052dd97deaf87d4cd

SHA1
72c466f31ddfe4722210333f145773a7f0c9854d

SHA256
414252a14126cada7632ba5a09a5c7c80248d8eee7c3b106787b43f56d718dba

SHA512
8d32635f4c5e9c086567a8ea9615d1c2d0b134d4398068af7827abf2d3f51edd9b68a10d2b568add051bb96db6f4f9590bce03f3733ff2e66af1199ab4b89b76

Download Submit
C:\Users\Admin\AppData\Local\Temp\bramGU2KFQtCHXS.exe

Filesize
71KB

MD5
db9e079cea34520bc4976b4da6d242b1

SHA1
d37ab416580307a48b97af8a9d64fc7a4aca3a81

SHA256
8e9647d778cb6a0577509496772214c1d0cc5191350e8b5d12b28b904f84301f

SHA512
1c31933d3b1e00ab8038fafd09a6ba9169195a4684278b7a6c7bf7e7a69eb8879d24a19a559fde5d2315954aedc0127e9d73dbd16be8abc62d40a3a62b781a9b

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