705a1f47993b93cf4c84e20e6912333da02c98f0df3bc6c33e15736171fc3bfe

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
23/05/2024, 19:37

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General

Target

2024-05-23_c2f878ac348a0fd1778a6a17cef809c3_bkransomware.exe
Size

71KB
MD5

c2f878ac348a0fd1778a6a17cef809c3
SHA1

a4de2e11ecd9bd9ca2e78334b8fffa7039780cb0
SHA256

705a1f47993b93cf4c84e20e6912333da02c98f0df3bc6c33e15736171fc3bfe
SHA512

8269eea8539b4f0f28408a76322002e182a005e95799351f4ad4b87ccf0535e3e4e032fbf9dd11c3d472317e3c0c6a4e9e0d20b2e1809b1b02784d1fec497f0c
SSDEEP

1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazTu/:ZhpAyazIlyazT+

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2340	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"	CTS.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	2024-05-23_c2f878ac348a0fd1778a6a17cef809c3_bkransomware.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	2024-05-23_c2f878ac348a0fd1778a6a17cef809c3_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2320	2024-05-23_c2f878ac348a0fd1778a6a17cef809c3_bkransomware.exe
Token: SeDebugPrivilege	2340	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2320 wrote to memory of 2340	2320	2024-05-23_c2f878ac348a0fd1778a6a17cef809c3_bkransomware.exe	29
PID 2320 wrote to memory of 2340	2320	2024-05-23_c2f878ac348a0fd1778a6a17cef809c3_bkransomware.exe	29
PID 2320 wrote to memory of 2340	2320	2024-05-23_c2f878ac348a0fd1778a6a17cef809c3_bkransomware.exe	29
PID 2320 wrote to memory of 2340	2320	2024-05-23_c2f878ac348a0fd1778a6a17cef809c3_bkransomware.exe	29

C:\Users\Admin\AppData\Local\Temp\2024-05-23_c2f878ac348a0fd1778a6a17cef809c3_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_c2f878ac348a0fd1778a6a17cef809c3_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2320
- 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:2340

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\AJQoH4krmgqYXp3.exe

Filesize
71KB

MD5
8df2a231deb3aff7d4c4f1ce3074a413

SHA1
1c2e8c17968be84fb5fc1213f47b05fd14133e37

SHA256
b6148160cf97e9a0eaa6a4310f87a44b8b30e71fd3458dc74f29c8cde506b623

SHA512
ec366be2de6bc0215822602854b22bb36dd8dc8bbb74320d74b31540e80f850e595db299b0cf80839dca104b9c8410956dc8bc95112e923dec28d0f94eb0b30a

Download Submit
C:\Windows\CTS.exe

Filesize
71KB

MD5
66df4ffab62e674af2e75b163563fc0b

SHA1
dec8a197312e41eeb3cfef01cb2a443f0205cd6e

SHA256
075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163

SHA512
1588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads