fd69be68cd5ca7efd879b49f80f4b7a6cc983b18802bcb2f32a8281d13350db0

General

Target

2024-05-23_24322deab767a6c3a8c92a8cc22caae6_bkransomware.exe
Size

96KB
MD5

24322deab767a6c3a8c92a8cc22caae6
SHA1

7f059764e49d92995f92a84f75589d42205197d7
SHA256

fd69be68cd5ca7efd879b49f80f4b7a6cc983b18802bcb2f32a8281d13350db0
SHA512

5c2cc5eeb9a340404f4fb6c8ea5ec242bb01397e563fc0de7a34b4f6978f7013d908b10b5ea0f4bc33d3fe9ec45f70aac3430b7b0bab747d22b61d0f3f53dab7
SSDEEP

1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTJ6pC2VoRfpkjuUvkF:ZRpAyazIliazTJ6pC2Vgf2uUvkF

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 3 IoCs

Processes:

7eYLU1UQKeRo9W8.exeCTS.exe

pid process

2356 7eYLU1UQKeRo9W8.exe
2552 CTS.exe
1208
Loads dropped DLL 3 IoCs

Processes:

2024-05-23_24322deab767a6c3a8c92a8cc22caae6_bkransomware.exe

pid process

1284 2024-05-23_24322deab767a6c3a8c92a8cc22caae6_bkransomware.exe
1284 2024-05-23_24322deab767a6c3a8c92a8cc22caae6_bkransomware.exe
3024
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
2356	7eYLU1UQKeRo9W8.exe
2552	CTS.exe
1208

pid	process
1284	2024-05-23_24322deab767a6c3a8c92a8cc22caae6_bkransomware.exe
1284	2024-05-23_24322deab767a6c3a8c92a8cc22caae6_bkransomware.exe
3024

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

CTS.exe2024-05-23_24322deab767a6c3a8c92a8cc22caae6_bkransomware.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	CTS.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	2024-05-23_24322deab767a6c3a8c92a8cc22caae6_bkransomware.exe

Drops file in Windows directory 2 IoCs

Processes:

2024-05-23_24322deab767a6c3a8c92a8cc22caae6_bkransomware.exeCTS.exe

description ioc process

File created C:\Windows\CTS.exe 2024-05-23_24322deab767a6c3a8c92a8cc22caae6_bkransomware.exe
File created C:\Windows\CTS.exe CTS.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

2024-05-23_24322deab767a6c3a8c92a8cc22caae6_bkransomware.exeCTS.exe

description pid process

Token: SeDebugPrivilege 1284 2024-05-23_24322deab767a6c3a8c92a8cc22caae6_bkransomware.exe
Token: SeDebugPrivilege 2552 CTS.exe

description	ioc	process
File created	C:\Windows\CTS.exe	2024-05-23_24322deab767a6c3a8c92a8cc22caae6_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

description	pid	process
Token: SeDebugPrivilege	1284	2024-05-23_24322deab767a6c3a8c92a8cc22caae6_bkransomware.exe
Token: SeDebugPrivilege	2552	CTS.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

2024-05-23_24322deab767a6c3a8c92a8cc22caae6_bkransomware.exe

description	pid	process	target process
PID 1284 wrote to memory of 2356	1284	2024-05-23_24322deab767a6c3a8c92a8cc22caae6_bkransomware.exe	7eYLU1UQKeRo9W8.exe
PID 1284 wrote to memory of 2356	1284	2024-05-23_24322deab767a6c3a8c92a8cc22caae6_bkransomware.exe	7eYLU1UQKeRo9W8.exe
PID 1284 wrote to memory of 2356	1284	2024-05-23_24322deab767a6c3a8c92a8cc22caae6_bkransomware.exe	7eYLU1UQKeRo9W8.exe
PID 1284 wrote to memory of 2356	1284	2024-05-23_24322deab767a6c3a8c92a8cc22caae6_bkransomware.exe	7eYLU1UQKeRo9W8.exe
PID 1284 wrote to memory of 2552	1284	2024-05-23_24322deab767a6c3a8c92a8cc22caae6_bkransomware.exe	CTS.exe
PID 1284 wrote to memory of 2552	1284	2024-05-23_24322deab767a6c3a8c92a8cc22caae6_bkransomware.exe	CTS.exe
PID 1284 wrote to memory of 2552	1284	2024-05-23_24322deab767a6c3a8c92a8cc22caae6_bkransomware.exe	CTS.exe
PID 1284 wrote to memory of 2552	1284	2024-05-23_24322deab767a6c3a8c92a8cc22caae6_bkransomware.exe	CTS.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-23_24322deab767a6c3a8c92a8cc22caae6_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_24322deab767a6c3a8c92a8cc22caae6_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:1284

C:\Users\Admin\AppData\Local\Temp\7eYLU1UQKeRo9W8.exe
C:\Users\Admin\AppData\Local\Temp\7eYLU1UQKeRo9W8.exe
2⤵
- Executes dropped EXE
PID:2356

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:2552

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:\Users\Admin\AppData\Local\Temp\7eYLU1UQKeRo9W8.exe

Filesize
96KB

MD5
27d8bee14b302de2f82ce4f040effead

SHA1
6a78640e3ec2fbf58b3fcee5c3e741558687a00c

SHA256
ed6cfeb9fdf107e1bc7ac8466749022bbb70b1746ff5215ec288a18ce28115e0

SHA512
f37a5b0a4f8fed050c715b7ab906fcde601963064d89694bfb863f045880fc75c57fbc5dadbfe44d70877e1d9ae489f4cd92691452f84c2fca61b0ce72da6e00

Download Submit
C:\Users\Admin\AppData\Local\Temp\7eYLU1UQKeRo9W8.exe

Filesize
25KB

MD5
abbd49c180a2f8703f6306d6fa731fdc

SHA1
d63f4bfe7f74936b2fbace803e3da6103fbf6586

SHA256
5f411c0bd9ed9a42b0f07ed568c7d0cf358a83063b225a1f8f7da3296dde90f1

SHA512
290dd984acc451b778f3db8c510bae7aec1d9547c3ad0a1829df731c136e4ecc9a37dc6a786cf8f1ecc4d14339aed1288af25055f450f6f953138c8d4d5c36e9

Download Submit
C:\Windows\CTS.exe

Filesize
71KB

MD5
f9d4ab0a726adc9b5e4b7d7b724912f1

SHA1
3d42ca2098475924f70ee4a831c4f003b4682328

SHA256
b43be87e8586ca5e995979883468f3b3d9dc5212fbfd0b5f3341a5b7c56e0fbc

SHA512
22a5f0e4b2716244e978ee50771823926f86baf0382ece48fd049f039cf77b5eb0691d83c61148903cff081fdbea969f47b8ed521647717f42bbed5c64552432

Download Submit
memory/2356-14-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads