46b44fe9549e0d88ae258f821367bfce51814006a4d405b106f9822a66833806

General

Target

2024-04-28_8add7850a858524e9c2e7658ced94e2a_bkransomware.exe
Size

159KB
MD5

8add7850a858524e9c2e7658ced94e2a
SHA1

62c6fbc699737f98a14b23f771d6adfe8eba9ff0
SHA256

46b44fe9549e0d88ae258f821367bfce51814006a4d405b106f9822a66833806
SHA512

7097d3e0ddffebd23ce756fabc6196b9a1d2e623a52eed64e292a3c91992d489d67e74789e34c10b45c9d8db4aa1d8960707d3706416e40bb19f621faf5c2b8a
SSDEEP

3072:ZhpAyazIlyazT4PkI5V7KvgmHzxM/FVpIZU2jkfrbTLVK:hZMazs8IH7MgvrEUr/LM

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

iBtzp7cBzG4XNJ6.exeCTS.exe

pid process

2200 iBtzp7cBzG4XNJ6.exe
1516 CTS.exe
Loads dropped DLL 1 IoCs

Processes:

2024-04-28_8add7850a858524e9c2e7658ced94e2a_bkransomware.exe

pid process

360 2024-04-28_8add7850a858524e9c2e7658ced94e2a_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
2200	iBtzp7cBzG4XNJ6.exe
1516	CTS.exe

pid	process
360	2024-04-28_8add7850a858524e9c2e7658ced94e2a_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_8add7850a858524e9c2e7658ced94e2a_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_8add7850a858524e9c2e7658ced94e2a_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_8add7850a858524e9c2e7658ced94e2a_bkransomware.exeCTS.exe

description ioc process

File created C:\Windows\CTS.exe 2024-04-28_8add7850a858524e9c2e7658ced94e2a_bkransomware.exe
File created C:\Windows\CTS.exe CTS.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

2024-04-28_8add7850a858524e9c2e7658ced94e2a_bkransomware.exeCTS.exe

description pid process

Token: SeDebugPrivilege 360 2024-04-28_8add7850a858524e9c2e7658ced94e2a_bkransomware.exe
Token: SeDebugPrivilege 1516 CTS.exe

description	ioc	process
File created	C:\Windows\CTS.exe	2024-04-28_8add7850a858524e9c2e7658ced94e2a_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

description	pid	process
Token: SeDebugPrivilege	360	2024-04-28_8add7850a858524e9c2e7658ced94e2a_bkransomware.exe
Token: SeDebugPrivilege	1516	CTS.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

2024-04-28_8add7850a858524e9c2e7658ced94e2a_bkransomware.exe

description	pid	process	target process
PID 360 wrote to memory of 2200	360	2024-04-28_8add7850a858524e9c2e7658ced94e2a_bkransomware.exe	iBtzp7cBzG4XNJ6.exe
PID 360 wrote to memory of 2200	360	2024-04-28_8add7850a858524e9c2e7658ced94e2a_bkransomware.exe	iBtzp7cBzG4XNJ6.exe
PID 360 wrote to memory of 2200	360	2024-04-28_8add7850a858524e9c2e7658ced94e2a_bkransomware.exe	iBtzp7cBzG4XNJ6.exe
PID 360 wrote to memory of 2200	360	2024-04-28_8add7850a858524e9c2e7658ced94e2a_bkransomware.exe	iBtzp7cBzG4XNJ6.exe
PID 360 wrote to memory of 1516	360	2024-04-28_8add7850a858524e9c2e7658ced94e2a_bkransomware.exe	CTS.exe
PID 360 wrote to memory of 1516	360	2024-04-28_8add7850a858524e9c2e7658ced94e2a_bkransomware.exe	CTS.exe
PID 360 wrote to memory of 1516	360	2024-04-28_8add7850a858524e9c2e7658ced94e2a_bkransomware.exe	CTS.exe
PID 360 wrote to memory of 1516	360	2024-04-28_8add7850a858524e9c2e7658ced94e2a_bkransomware.exe	CTS.exe

C:\Users\Admin\AppData\Local\Temp\2024-04-28_8add7850a858524e9c2e7658ced94e2a_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-28_8add7850a858524e9c2e7658ced94e2a_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:360

C:\Users\Admin\AppData\Local\Temp\iBtzp7cBzG4XNJ6.exe
C:\Users\Admin\AppData\Local\Temp\iBtzp7cBzG4XNJ6.exe
2⤵
- Executes dropped EXE
PID:2200

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:1516

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

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\Users\Admin\AppData\Local\Temp\iBtzp7cBzG4XNJ6.exe
Filesize
88KB

MD5
4a895ec6c5a9df94820219ef525cf65a

SHA1
525dd15cdeec20966d61c5f0a81667cd931349cb

SHA256
949b6765d794c53656c9afc45b90d9a2cfcae6bb30444086b29225f19242217b

SHA512
a830996a8aae3d25bd21283f4f19ea295d6caa31ab98d14f5bacc15fee64264170348ca03c7bd390e6107274fb91923e24f4c6a6dca09a5354ae47d4109ed611

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads