d753239707fff20d4c1bf5064ec609da05b83309c6fe786bbf4a1689fd2f48a8

Analysis

max time kernel
120s
max time network
126s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/05/2024, 21:28

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-05-10_6925ef604ada95b410d39b83d9329fc0_bkransomware.exe
Size

71KB
MD5

6925ef604ada95b410d39b83d9329fc0
SHA1

e52ab12b8dc7aa66ba55e7bcf5e5b09f3ee74363
SHA256

d753239707fff20d4c1bf5064ec609da05b83309c6fe786bbf4a1689fd2f48a8
SHA512

7962af043e82334068ea17ed385d6b1f8936f4d7140998c3e4da3e10b671e0fb2a998b8be5e98ae6b989073492e24f4e522a8891c1c48642b4f0e3e114c33a5f
SSDEEP

1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazTcX:ZhpAyazIlyazTK

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1676	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_6925ef604ada95b410d39b83d9329fc0_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_6925ef604ada95b410d39b83d9329fc0_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	856	2024-05-10_6925ef604ada95b410d39b83d9329fc0_bkransomware.exe
Token: SeDebugPrivilege	1676	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 856 wrote to memory of 1676	856	2024-05-10_6925ef604ada95b410d39b83d9329fc0_bkransomware.exe	28
PID 856 wrote to memory of 1676	856	2024-05-10_6925ef604ada95b410d39b83d9329fc0_bkransomware.exe	28
PID 856 wrote to memory of 1676	856	2024-05-10_6925ef604ada95b410d39b83d9329fc0_bkransomware.exe	28
PID 856 wrote to memory of 1676	856	2024-05-10_6925ef604ada95b410d39b83d9329fc0_bkransomware.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-10_6925ef604ada95b410d39b83d9329fc0_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-10_6925ef604ada95b410d39b83d9329fc0_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:856
- 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:1676

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\lcaeFLk94HFpAVf.exe

Filesize
71KB

MD5
9b92c51685c5475086f6a023004a6967

SHA1
f34667e4d3c8ef921fa140db934930c648c99332

SHA256
84ad5412f1b36cea841c6997267f88c601488d3a3cc958439c00ecdc32907749

SHA512
b8a2bdc766d0da3ff7a183af8e12386506bb7c78ea06ffd8853fc7ace508d18da39da9d3cabdb2024b2967ddbf197f7c59c8eb25eec78e54ebd26e44fe377f83

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