5da26b9fb6d58eaaac6595d173a79fab7d746fd23d0754abcc2d4eb31077b1df

General

Target

2024-04-28_58c490f398b6ae5bfcc70dfc0eba73e9_bkransomware.exe
Size

144KB
MD5

58c490f398b6ae5bfcc70dfc0eba73e9
SHA1

8f925e0fd8699a0b91079199a3d799e44f0530b5
SHA256

5da26b9fb6d58eaaac6595d173a79fab7d746fd23d0754abcc2d4eb31077b1df
SHA512

3bb57f82c64476a44f84f8340e714539625f4c0b4a8a00ddc47c2d1cf632c89513c06f465d0f540ba0571cbacfd6280f9f9c9a7fa3fdad25d04ac5bb44d310d2
SSDEEP

3072:ZhpAyazIlyazTN7hxBz9gypsBsim0bKZRXV:hZMazp79/nimdLl

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

5AhZm0qcD1vNNLt.exeCTS.exe

pid process

1460 5AhZm0qcD1vNNLt.exe
3048 CTS.exe
Loads dropped DLL 2 IoCs

Processes:

2024-04-28_58c490f398b6ae5bfcc70dfc0eba73e9_bkransomware.exe

pid process

2100 2024-04-28_58c490f398b6ae5bfcc70dfc0eba73e9_bkransomware.exe
2100 2024-04-28_58c490f398b6ae5bfcc70dfc0eba73e9_bkransomware.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

pid	process
1460	5AhZm0qcD1vNNLt.exe
3048	CTS.exe

pid	process
2100	2024-04-28_58c490f398b6ae5bfcc70dfc0eba73e9_bkransomware.exe
2100	2024-04-28_58c490f398b6ae5bfcc70dfc0eba73e9_bkransomware.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2024-04-28_58c490f398b6ae5bfcc70dfc0eba73e9_bkransomware.exeCTS.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	2024-04-28_58c490f398b6ae5bfcc70dfc0eba73e9_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

Processes:

2024-04-28_58c490f398b6ae5bfcc70dfc0eba73e9_bkransomware.exeCTS.exe

description ioc process

File created C:\Windows\CTS.exe 2024-04-28_58c490f398b6ae5bfcc70dfc0eba73e9_bkransomware.exe
File created C:\Windows\CTS.exe CTS.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

2024-04-28_58c490f398b6ae5bfcc70dfc0eba73e9_bkransomware.exeCTS.exe

description pid process

Token: SeDebugPrivilege 2100 2024-04-28_58c490f398b6ae5bfcc70dfc0eba73e9_bkransomware.exe
Token: SeDebugPrivilege 3048 CTS.exe

description	ioc	process
File created	C:\Windows\CTS.exe	2024-04-28_58c490f398b6ae5bfcc70dfc0eba73e9_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

description	pid	process
Token: SeDebugPrivilege	2100	2024-04-28_58c490f398b6ae5bfcc70dfc0eba73e9_bkransomware.exe
Token: SeDebugPrivilege	3048	CTS.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

2024-04-28_58c490f398b6ae5bfcc70dfc0eba73e9_bkransomware.exe

description	pid	process	target process
PID 2100 wrote to memory of 1460	2100	2024-04-28_58c490f398b6ae5bfcc70dfc0eba73e9_bkransomware.exe	5AhZm0qcD1vNNLt.exe
PID 2100 wrote to memory of 1460	2100	2024-04-28_58c490f398b6ae5bfcc70dfc0eba73e9_bkransomware.exe	5AhZm0qcD1vNNLt.exe
PID 2100 wrote to memory of 1460	2100	2024-04-28_58c490f398b6ae5bfcc70dfc0eba73e9_bkransomware.exe	5AhZm0qcD1vNNLt.exe
PID 2100 wrote to memory of 1460	2100	2024-04-28_58c490f398b6ae5bfcc70dfc0eba73e9_bkransomware.exe	5AhZm0qcD1vNNLt.exe
PID 2100 wrote to memory of 3048	2100	2024-04-28_58c490f398b6ae5bfcc70dfc0eba73e9_bkransomware.exe	CTS.exe
PID 2100 wrote to memory of 3048	2100	2024-04-28_58c490f398b6ae5bfcc70dfc0eba73e9_bkransomware.exe	CTS.exe
PID 2100 wrote to memory of 3048	2100	2024-04-28_58c490f398b6ae5bfcc70dfc0eba73e9_bkransomware.exe	CTS.exe
PID 2100 wrote to memory of 3048	2100	2024-04-28_58c490f398b6ae5bfcc70dfc0eba73e9_bkransomware.exe	CTS.exe

C:\Users\Admin\AppData\Local\Temp\2024-04-28_58c490f398b6ae5bfcc70dfc0eba73e9_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-28_58c490f398b6ae5bfcc70dfc0eba73e9_bkransomware.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2100

C:\Users\Admin\AppData\Local\Temp\5AhZm0qcD1vNNLt.exe
C:\Users\Admin\AppData\Local\Temp\5AhZm0qcD1vNNLt.exe
2⤵
- Executes dropped EXE
PID:1460

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:3048

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\CTS.exe
Filesize
71KB

MD5
66df4ffab62e674af2e75b163563fc0b

SHA1
dec8a197312e41eeb3cfef01cb2a443f0205cd6e

SHA256
075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163

SHA512
1588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25

Download Submit
\Users\Admin\AppData\Local\Temp\5AhZm0qcD1vNNLt.exe
Filesize
73KB

MD5
2ffc9a24492c0a1af4d562f0c7608aa5

SHA1
1fd5ff6136fba36e9ee22598ecd250af3180ee53

SHA256
69828c857d4824b9f850b1e0597d2c134c91114b7a0774c41dffe33b0eb23721

SHA512
03806d162931b1dcf036a51e753ff073a43664491a3cd2e649e55dd77d5e910f7bcf1e217eb0889ef606457b679428640e975ee227de941a200f652417bc6d5d

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads