8d01a8beca39b47ac8075ec5d1f7a11cf551e4710d8505efdf23403492be37d4

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
23-05-2024 07:33

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-05-23_ae0b49e85a41bb774b708cdef368b9dc_bkransomware.exe
Size

96KB
MD5

ae0b49e85a41bb774b708cdef368b9dc
SHA1

6af79df86564985c686ac62d8a50cdfc4b6089a1
SHA256

8d01a8beca39b47ac8075ec5d1f7a11cf551e4710d8505efdf23403492be37d4
SHA512

8dd1ec6b74d56facd69d0700aa02959c7f6b5decc0ac77fe12d2818fc8e5e8b9a74c88006c620510b0cd0f007c96da79717f0ff2e1c72b0e7717c2485ff8faa3
SSDEEP

1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTI3r4s+Pnlwv5EW8kSI:ZRpAyazIliazTIb4s0lwSW81I

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

XBepd8wvFxK5BU5.exeCTS.exe

pid process

1256 XBepd8wvFxK5BU5.exe
3316 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

pid	process
1256	XBepd8wvFxK5BU5.exe
3316	CTS.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2024-05-23_ae0b49e85a41bb774b708cdef368b9dc_bkransomware.exeCTS.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	2024-05-23_ae0b49e85a41bb774b708cdef368b9dc_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:

2024-05-23_ae0b49e85a41bb774b708cdef368b9dc_bkransomware.exeCTS.exe

description ioc process

File created C:\Windows\CTS.exe 2024-05-23_ae0b49e85a41bb774b708cdef368b9dc_bkransomware.exe
File created C:\Windows\CTS.exe CTS.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

2024-05-23_ae0b49e85a41bb774b708cdef368b9dc_bkransomware.exeCTS.exe

description pid process

Token: SeDebugPrivilege 3644 2024-05-23_ae0b49e85a41bb774b708cdef368b9dc_bkransomware.exe
Token: SeDebugPrivilege 3316 CTS.exe

description	ioc	process
File created	C:\Windows\CTS.exe	2024-05-23_ae0b49e85a41bb774b708cdef368b9dc_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

description	pid	process
Token: SeDebugPrivilege	3644	2024-05-23_ae0b49e85a41bb774b708cdef368b9dc_bkransomware.exe
Token: SeDebugPrivilege	3316	CTS.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

2024-05-23_ae0b49e85a41bb774b708cdef368b9dc_bkransomware.exe

description	pid	process	target process
PID 3644 wrote to memory of 1256	3644	2024-05-23_ae0b49e85a41bb774b708cdef368b9dc_bkransomware.exe	XBepd8wvFxK5BU5.exe
PID 3644 wrote to memory of 1256	3644	2024-05-23_ae0b49e85a41bb774b708cdef368b9dc_bkransomware.exe	XBepd8wvFxK5BU5.exe
PID 3644 wrote to memory of 3316	3644	2024-05-23_ae0b49e85a41bb774b708cdef368b9dc_bkransomware.exe	CTS.exe
PID 3644 wrote to memory of 3316	3644	2024-05-23_ae0b49e85a41bb774b708cdef368b9dc_bkransomware.exe	CTS.exe
PID 3644 wrote to memory of 3316	3644	2024-05-23_ae0b49e85a41bb774b708cdef368b9dc_bkransomware.exe	CTS.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-23_ae0b49e85a41bb774b708cdef368b9dc_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_ae0b49e85a41bb774b708cdef368b9dc_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3644

C:\Users\Admin\AppData\Local\Temp\XBepd8wvFxK5BU5.exe
C:\Users\Admin\AppData\Local\Temp\XBepd8wvFxK5BU5.exe
2⤵
- Executes dropped EXE
PID:1256

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:3316

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\Microsoft\Office\16.0\excel.exe_Rules.xml
Filesize
394KB

MD5
caa4181f24462707b7249c9c86c997e6

SHA1
726b7101d55d04fb07b5e7de06de78f21f7cfce1

SHA256
d8876a05d679bf915a99c5f5c70a42bdcdb17db0b5b63f096a7d7ca5738cc753

SHA512
609f076586e8ea1b522757ca4bfe88b9b759ced22cb9564a385fa8c2400a5411b16295691b8db3e1c0bd591d981221b83085ff2495654530dfe2e864a5f5c99d

Download Submit
C:\Users\Admin\AppData\Local\Temp\XBepd8wvFxK5BU5.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/1256-10-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download