d08096981e20fba2cd1a346e114015acc2a25c068964f603b9e65ac3fbd3a9d9

Analysis

max time kernel
144s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20240704-en
resource tags

arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
submitted
06/07/2024, 07:31

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General

Target

2024-07-06_feea170df2be30541215c5226cfdb8c6_bkransomware.exe
Size

76KB
MD5

feea170df2be30541215c5226cfdb8c6
SHA1

9b31f893cade5c819db195d398b4d039b1d5188f
SHA256

d08096981e20fba2cd1a346e114015acc2a25c068964f603b9e65ac3fbd3a9d9
SHA512

490ed801d8bae3408e13bbdb136350646a90676af01ef61aee33197e45aa0043bf3e51b975ecdbb2a9a58a73c892cc9a7fbb592f6703b90e95356376a93a8785
SSDEEP

1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTToGB/:ZRpAyazIliazT0c/

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2880	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"	2024-07-06_feea170df2be30541215c5226cfdb8c6_bkransomware.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	2024-07-06_feea170df2be30541215c5226cfdb8c6_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1436	2024-07-06_feea170df2be30541215c5226cfdb8c6_bkransomware.exe
Token: SeDebugPrivilege	2880	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1436 wrote to memory of 2880	1436	2024-07-06_feea170df2be30541215c5226cfdb8c6_bkransomware.exe	83
PID 1436 wrote to memory of 2880	1436	2024-07-06_feea170df2be30541215c5226cfdb8c6_bkransomware.exe	83
PID 1436 wrote to memory of 2880	1436	2024-07-06_feea170df2be30541215c5226cfdb8c6_bkransomware.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-07-06_feea170df2be30541215c5226cfdb8c6_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-06_feea170df2be30541215c5226cfdb8c6_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1436
- 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:2880

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml

Filesize
394KB

MD5
3dd18f33a81f4aee1e933c63dedf04ed

SHA1
a9e1f0b416bf5d7da5b87d38227b48b584ce68e2

SHA256
1c6509ad9a64ebf1a4e4433c12246c3636517a1f910f416c37a32fe2b59a1460

SHA512
3ceec05054f97d51be13244d3f0f61c118c68b2af1827a175ff7b4b554e07881acff68094779c057a94765f16db0f26248a303e260b4bb9a2a15180c451c2a5a

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

Filesize
76KB

MD5
91ad2e0181b654abef91c372d17d45fc

SHA1
c8b8789e481f2a438edda646da4eb3cfcf1041de

SHA256
68ac0aed64f41f55b57cef398deedceeec172ea7b562c520e4d411ef829c1503

SHA512
8173ffc1f44f9cf8342a3f2fff1da6c400ac04b8b4ddb771a2a5f48807daf965bd5b9ba5b35e3b2e3a5e0e6dfcb3b161059233ef0ec6a37f14e7994e15d5caff

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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

Replay Monitor

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Downloads