89ea207b18ad5ea1adfa8615cdc37cd86a4091a9773122132225553b9dde3aea

General

Target

2024-05-24_6fc7c5cabf61537c4a0a944d1bc3a8fa_bkransomware.exe
Size

170KB
MD5

6fc7c5cabf61537c4a0a944d1bc3a8fa
SHA1

903408abdc9f32d1097cb0a865d0e54f2d744ca7
SHA256

89ea207b18ad5ea1adfa8615cdc37cd86a4091a9773122132225553b9dde3aea
SHA512

dd5e9f7fa1db8e102696886645ca7f54dd8025fd042b2e198b26c4eb360849f5f002b179a49fb42eda165b15055abc85aec965c7f9991f110e355d20a661421d
SSDEEP

3072:ZRpAyazIliazTRC7s1fgkeJR1UE/YuAPQXFTVkuCPjF:xZ8az1C9ksf6cVTVkFPjF

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

CTS.exeOiZHKXQ8iTTJWV7.exe

pid process

2644 CTS.exe
2232 OiZHKXQ8iTTJWV7.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-24_6fc7c5cabf61537c4a0a944d1bc3a8fa_bkransomware.exe

pid process

2216 2024-05-24_6fc7c5cabf61537c4a0a944d1bc3a8fa_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
2644	CTS.exe
2232	OiZHKXQ8iTTJWV7.exe

pid	process
2216	2024-05-24_6fc7c5cabf61537c4a0a944d1bc3a8fa_bkransomware.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2024-05-24_6fc7c5cabf61537c4a0a944d1bc3a8fa_bkransomware.exeCTS.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	2024-05-24_6fc7c5cabf61537c4a0a944d1bc3a8fa_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:

2024-05-24_6fc7c5cabf61537c4a0a944d1bc3a8fa_bkransomware.exeCTS.exe

description ioc process

File created C:\Windows\CTS.exe 2024-05-24_6fc7c5cabf61537c4a0a944d1bc3a8fa_bkransomware.exe
File created C:\Windows\CTS.exe CTS.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

2024-05-24_6fc7c5cabf61537c4a0a944d1bc3a8fa_bkransomware.exeCTS.exe

description pid process

Token: SeDebugPrivilege 2216 2024-05-24_6fc7c5cabf61537c4a0a944d1bc3a8fa_bkransomware.exe
Token: SeDebugPrivilege 2644 CTS.exe

description	ioc	process
File created	C:\Windows\CTS.exe	2024-05-24_6fc7c5cabf61537c4a0a944d1bc3a8fa_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

description	pid	process
Token: SeDebugPrivilege	2216	2024-05-24_6fc7c5cabf61537c4a0a944d1bc3a8fa_bkransomware.exe
Token: SeDebugPrivilege	2644	CTS.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

2024-05-24_6fc7c5cabf61537c4a0a944d1bc3a8fa_bkransomware.exe

description	pid	process	target process
PID 2216 wrote to memory of 2232	2216	2024-05-24_6fc7c5cabf61537c4a0a944d1bc3a8fa_bkransomware.exe	OiZHKXQ8iTTJWV7.exe
PID 2216 wrote to memory of 2232	2216	2024-05-24_6fc7c5cabf61537c4a0a944d1bc3a8fa_bkransomware.exe	OiZHKXQ8iTTJWV7.exe
PID 2216 wrote to memory of 2232	2216	2024-05-24_6fc7c5cabf61537c4a0a944d1bc3a8fa_bkransomware.exe	OiZHKXQ8iTTJWV7.exe
PID 2216 wrote to memory of 2232	2216	2024-05-24_6fc7c5cabf61537c4a0a944d1bc3a8fa_bkransomware.exe	OiZHKXQ8iTTJWV7.exe
PID 2216 wrote to memory of 2644	2216	2024-05-24_6fc7c5cabf61537c4a0a944d1bc3a8fa_bkransomware.exe	CTS.exe
PID 2216 wrote to memory of 2644	2216	2024-05-24_6fc7c5cabf61537c4a0a944d1bc3a8fa_bkransomware.exe	CTS.exe
PID 2216 wrote to memory of 2644	2216	2024-05-24_6fc7c5cabf61537c4a0a944d1bc3a8fa_bkransomware.exe	CTS.exe
PID 2216 wrote to memory of 2644	2216	2024-05-24_6fc7c5cabf61537c4a0a944d1bc3a8fa_bkransomware.exe	CTS.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-24_6fc7c5cabf61537c4a0a944d1bc3a8fa_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-24_6fc7c5cabf61537c4a0a944d1bc3a8fa_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:2216

C:\Users\Admin\AppData\Local\Temp\OiZHKXQ8iTTJWV7.exe
C:\Users\Admin\AppData\Local\Temp\OiZHKXQ8iTTJWV7.exe
2⤵
- Executes dropped EXE
PID:2232

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:2644

Network

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
f9d4ab0a726adc9b5e4b7d7b724912f1

SHA1
3d42ca2098475924f70ee4a831c4f003b4682328

SHA256
b43be87e8586ca5e995979883468f3b3d9dc5212fbfd0b5f3341a5b7c56e0fbc

SHA512
22a5f0e4b2716244e978ee50771823926f86baf0382ece48fd049f039cf77b5eb0691d83c61148903cff081fdbea969f47b8ed521647717f42bbed5c64552432

Download Submit
\Users\Admin\AppData\Local\Temp\OiZHKXQ8iTTJWV7.exe

Filesize
99KB

MD5
af88cab288e8213a11a7ea5313363d31

SHA1
cb769e3246d5244a0040621e919f7c519ba49986

SHA256
7407fac6e170430f34322202b73aa392431b5c2c49e15304fb255bb24c540366

SHA512
a4e353fcb78579345d4c5bc1f48970b473e0499dfe5bc6abeffb669295fa2940ce8637045a11f881fe88dd9b97d380ae9a8eed1b94fbd47181e0b4eb427e9679

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads