08b6113ada7b22354667241e36ca93c685f455cae8303e4cfc1a5cd422f4dec8

Analysis

max time kernel
140s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
30/04/2024, 11:23

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-04-30_074440e348b340f1b08a08d9de63f8f9_bkransomware.exe
Size

71KB
MD5

074440e348b340f1b08a08d9de63f8f9
SHA1

14fb2d5be5733c079390bbc64e5f57eb5c51b620
SHA256

08b6113ada7b22354667241e36ca93c685f455cae8303e4cfc1a5cd422f4dec8
SHA512

38f80ecf4957628bbe4efe5d9b8ef71c63969c65e4235deed6814a3fc2d1aa537c84b17e00ecd6ab550ac1316015eb305d0a0640e0ee2e535aff252fd1788ce1
SSDEEP

1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTD:ZRpAyazIliazTD

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1480	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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	2024-04-30_074440e348b340f1b08a08d9de63f8f9_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

description	ioc	Process
File created	C:\Windows\CTS.exe	CTS.exe
File created	C:\Windows\CTS.exe	2024-04-30_074440e348b340f1b08a08d9de63f8f9_bkransomware.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	60	2024-04-30_074440e348b340f1b08a08d9de63f8f9_bkransomware.exe
Token: SeDebugPrivilege	1480	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 60 wrote to memory of 1480	60	2024-04-30_074440e348b340f1b08a08d9de63f8f9_bkransomware.exe	86
PID 60 wrote to memory of 1480	60	2024-04-30_074440e348b340f1b08a08d9de63f8f9_bkransomware.exe	86
PID 60 wrote to memory of 1480	60	2024-04-30_074440e348b340f1b08a08d9de63f8f9_bkransomware.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-04-30_074440e348b340f1b08a08d9de63f8f9_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_074440e348b340f1b08a08d9de63f8f9_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:60
- 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:1480

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
73d44f087e075809c948ad36d8ed63b2

SHA1
dd66a99179b5cf2f06c5947ca0e845d296588cc2

SHA256
78a141a236b537dae6130580332b0efdf20c520b051616f53b82fd7bfdb68cba

SHA512
3cc23f68dfc7b0adffadd0ed8b66fd965cbd18d04091d8a822702983a5f9344deceec13c86ea6499025634c25a767de85f3d0edba8b566ca956cebd7a0503106

Download Submit
C:\Users\Admin\AppData\Local\Temp\U1juNV5BwacvMpW.exe

Filesize
71KB

MD5
109d3285f2321c3c06af4befba9ad22c

SHA1
a59232a3322055006303d00de3817ee53d8223e2

SHA256
0b0ca8f0fefe813e7d3c1830ec5c5e8583863026fbad94e2c810de8207897dc4

SHA512
ec901a752f8ebfd16a484174d64a45acf632a6011115ad3c8578970fbb0b192f83e3e7ed429fcbb7952df087a3171f8169583a565a7aa399c56fc7c84c5898be

Download Submit
C:\Windows\CTS.exe

Filesize
71KB

MD5
f9d4ab0a726adc9b5e4b7d7b724912f1

SHA1
3d42ca2098475924f70ee4a831c4f003b4682328

SHA256
b43be87e8586ca5e995979883468f3b3d9dc5212fbfd0b5f3341a5b7c56e0fbc

SHA512
22a5f0e4b2716244e978ee50771823926f86baf0382ece48fd049f039cf77b5eb0691d83c61148903cff081fdbea969f47b8ed521647717f42bbed5c64552432

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads