08b6113ada7b22354667241e36ca93c685f455cae8303e4cfc1a5cd422f4dec8

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
30/04/2024, 11:23

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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
2324	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	2024-04-30_074440e348b340f1b08a08d9de63f8f9_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1724	2024-04-30_074440e348b340f1b08a08d9de63f8f9_bkransomware.exe
Token: SeDebugPrivilege	2324	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1724 wrote to memory of 2324	1724	2024-04-30_074440e348b340f1b08a08d9de63f8f9_bkransomware.exe	28
PID 1724 wrote to memory of 2324	1724	2024-04-30_074440e348b340f1b08a08d9de63f8f9_bkransomware.exe	28
PID 1724 wrote to memory of 2324	1724	2024-04-30_074440e348b340f1b08a08d9de63f8f9_bkransomware.exe	28
PID 1724 wrote to memory of 2324	1724	2024-04-30_074440e348b340f1b08a08d9de63f8f9_bkransomware.exe	28

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:1724
- 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:2324

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\CNcOmeeHcRleSzI.exe

Filesize
71KB

MD5
ba07c7041101f5b2e345ba3ebcda2207

SHA1
3ea2c1b7d16d2d5f6669061672365260a0af7c69

SHA256
35372832917c23976b1aa4807752c77e016bb9e6c8261b734015daf5d8f66d44

SHA512
0dfa09488a1f19960fdaeceed979185c48928a87ff7c9110b9b5264dc1fba42d6b5c9eb1499fba68b723e2c4bf2d599b05af03864fcf91a96d036cf1525d2f8f

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C:\Windows\CTS.exe

Filesize
71KB

MD5
f9d4ab0a726adc9b5e4b7d7b724912f1

SHA1
3d42ca2098475924f70ee4a831c4f003b4682328

SHA256
b43be87e8586ca5e995979883468f3b3d9dc5212fbfd0b5f3341a5b7c56e0fbc

SHA512
22a5f0e4b2716244e978ee50771823926f86baf0382ece48fd049f039cf77b5eb0691d83c61148903cff081fdbea969f47b8ed521647717f42bbed5c64552432

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads