a2dd80fe1e4dd9be36384daebd6a9032b50c773e6395b87497908c44223211d6

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
09/07/2024, 04:25

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-07-09_1387bbc0f63b3efac376af8c90ad860c_bkransomware.exe
Size

71KB
MD5

1387bbc0f63b3efac376af8c90ad860c
SHA1

78a0862458677c2e48d454e4b28c149e4efe1b6d
SHA256

a2dd80fe1e4dd9be36384daebd6a9032b50c773e6395b87497908c44223211d6
SHA512

7e34b418fad8cd9b0d36911e2efe39c8c4860a4ec675806fd7a8eb3647132bbe80c74060aca0637a690c03517d7a4af711ef4bda5ffc4c5f48357c1dac626711
SSDEEP

1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazT/:ZhpAyazIlyazT/

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2284	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"	2024-07-09_1387bbc0f63b3efac376af8c90ad860c_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	2024-07-09_1387bbc0f63b3efac376af8c90ad860c_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3052	2024-07-09_1387bbc0f63b3efac376af8c90ad860c_bkransomware.exe
Token: SeDebugPrivilege	2284	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3052 wrote to memory of 2284	3052	2024-07-09_1387bbc0f63b3efac376af8c90ad860c_bkransomware.exe	30
PID 3052 wrote to memory of 2284	3052	2024-07-09_1387bbc0f63b3efac376af8c90ad860c_bkransomware.exe	30
PID 3052 wrote to memory of 2284	3052	2024-07-09_1387bbc0f63b3efac376af8c90ad860c_bkransomware.exe	30
PID 3052 wrote to memory of 2284	3052	2024-07-09_1387bbc0f63b3efac376af8c90ad860c_bkransomware.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-07-09_1387bbc0f63b3efac376af8c90ad860c_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-09_1387bbc0f63b3efac376af8c90ad860c_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3052
- 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:2284

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\Temp\oTzxuCr9mP7yfNu.exe

Filesize
71KB

MD5
ff834b95bef5e2224d64065c87fd8205

SHA1
98398d7ce0fc4b79823126804741fe7a6bc7cd42

SHA256
5997e42fe91d8f930ba537372a6028ab58946fa976513e8f22b5f8781952d75e

SHA512
1ad70470e0bed2ea478f36960a574035c4f4b5b9d65186cab93efd4c9dde4d00bdfcaae8e2d3dca43ec313b45c7acc6713d4b95f457301607659c3f061aa2dc9

Download Submit
C:\Windows\CTS.exe

Filesize
71KB

MD5
66df4ffab62e674af2e75b163563fc0b

SHA1
dec8a197312e41eeb3cfef01cb2a443f0205cd6e

SHA256
075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163

SHA512
1588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads