5f7fa9986313aa6877dd475857d86b01427589398844b26a154c300bae2b1783

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
13-05-2024 11:27

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General

Target

2024-05-13_22a739006116d7ebdff3e39c9854f427_bkransomware.exe
Size

73KB
MD5

22a739006116d7ebdff3e39c9854f427
SHA1

0b415a09b8b0b44b856f4bb154bcb8949437ede6
SHA256

5f7fa9986313aa6877dd475857d86b01427589398844b26a154c300bae2b1783
SHA512

b62af71ab938856020631f24a88626577083f3f237db100bb96e0a5b17abc61d431bbd83a2406f8f8407da99d859d110d52a8b0e4adf69ae500e91575a32e686
SSDEEP

1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTp:ZRpAyazIliazTp

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
300	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"	2024-05-13_22a739006116d7ebdff3e39c9854f427_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	2024-05-13_22a739006116d7ebdff3e39c9854f427_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2156	2024-05-13_22a739006116d7ebdff3e39c9854f427_bkransomware.exe
Token: SeDebugPrivilege	300	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2156 wrote to memory of 300	2156	2024-05-13_22a739006116d7ebdff3e39c9854f427_bkransomware.exe	28
PID 2156 wrote to memory of 300	2156	2024-05-13_22a739006116d7ebdff3e39c9854f427_bkransomware.exe	28
PID 2156 wrote to memory of 300	2156	2024-05-13_22a739006116d7ebdff3e39c9854f427_bkransomware.exe	28
PID 2156 wrote to memory of 300	2156	2024-05-13_22a739006116d7ebdff3e39c9854f427_bkransomware.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-13_22a739006116d7ebdff3e39c9854f427_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-13_22a739006116d7ebdff3e39c9854f427_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2156
- 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:300

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\rAXipNOV1obBKti.exe

Filesize
2KB

MD5
bbf676d400264f943611dad0c3b2dd12

SHA1
f712cea2f1697d4a7f4d01c003df5b449819aaf5

SHA256
5aac424841169ac9e90b11ebcd1a4600c446a08968b6e08b62131f6cdffcb502

SHA512
070ddf37839d3fbc38106f5e41e08717de5bfd81de2a23a08ffe3ad3d8a58298ef55fb2ed7070a95a954bda5570bdf82b534a3fdd51b44274a44271b1fcfafff

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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