e865b38aa950be383f7f7597894010f6acfedd3bd575e0f18d605a4f3bee94de

Analysis

max time kernel
93s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
12/05/2024, 14:44

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-05-12_bf9655b4b41e067b37955f5b410029a1_bkransomware.exe
Size

71KB
MD5

bf9655b4b41e067b37955f5b410029a1
SHA1

8f288b1ae592bf2ae2bee76eec11a66a818ba456
SHA256

e865b38aa950be383f7f7597894010f6acfedd3bd575e0f18d605a4f3bee94de
SHA512

364cc569d28daa00c6510867dc8f8f28d4568322bf967d557543b1c9ede16e6002441daab5d7c2b732d699eda6eccc7a7c32ed80321b93490200a8656fcb48f0
SSDEEP

1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTL:ZRpAyazIliazTL

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2600	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"	2024-05-12_bf9655b4b41e067b37955f5b410029a1_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	2024-05-12_bf9655b4b41e067b37955f5b410029a1_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3144	2024-05-12_bf9655b4b41e067b37955f5b410029a1_bkransomware.exe
Token: SeDebugPrivilege	2600	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3144 wrote to memory of 2600	3144	2024-05-12_bf9655b4b41e067b37955f5b410029a1_bkransomware.exe	82
PID 3144 wrote to memory of 2600	3144	2024-05-12_bf9655b4b41e067b37955f5b410029a1_bkransomware.exe	82
PID 3144 wrote to memory of 2600	3144	2024-05-12_bf9655b4b41e067b37955f5b410029a1_bkransomware.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-05-12_bf9655b4b41e067b37955f5b410029a1_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-12_bf9655b4b41e067b37955f5b410029a1_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3144
- 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:2600

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
395KB

MD5
e7aafecf5ba031152b343a3fb5fb8b84

SHA1
3149ddcc6af0c2a689bbc1b23ab49c0acde7c3d5

SHA256
ada0e178a6bef424225960a6fdd831687634eeb405a8a411b127b391ee09baff

SHA512
58c5424c447bbc6dafa0a1573e8649c813a2dff98160d6dc03fe5a6d245f218f30b9b8129288b340d41434c29456cd2ab03167bda7223273188e3a1de09c1422

Download Submit
C:\Users\Admin\AppData\Local\Temp\nybIMW4YQbEMAew.exe

Filesize
71KB

MD5
8fce71a4c14075a205d36ddd34bf537d

SHA1
14786ebb0adbc5d5eb98ee9b5304b0df055a9bea

SHA256
974da0d7c77d080ad00bbd458f5c29b37189d6694cc4abe4c8d984f3d22bc146

SHA512
e53117a45fd737b3f9fe662f39b67e143e744c039641f169c46f3e9fb2298d3bbbcd747482630d0f6e29ad785434d00e7950b17c468161d6a720c9511960f8b4

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