42baffe6c3ae238bc5e75775efdcf298e2b2dc2b9e3e2845be97d97338d466f6

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
09-07-2024 17:59

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-07-09_a0cd260dcfbc478802522e05a1d251e4_bkransomware.exe
Size

262KB
MD5

a0cd260dcfbc478802522e05a1d251e4
SHA1

cb185b1ad60a3011ae286d07f0c3de63f7c1081c
SHA256

42baffe6c3ae238bc5e75775efdcf298e2b2dc2b9e3e2845be97d97338d466f6
SHA512

3cd2f768d7046ab21f7377f13c7fe14678a6335881eac40194c4b88fc1c7fb32bf2a949b98249b2910d224174d1fca1e122ee41e4e605860ba274cdda40d1145
SSDEEP

6144:hZMazmT5LVtjxxS/8rBGZfz2ghgYkwrtufAk70Ed4N:hS0sj/S/8cZfhgHwrtufAa0EA

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2140	CTS.exe
2340	tSnkK9oZzfZhOkn.exe

Loads dropped DLL 1 IoCs

pid	Process
1720	2024-07-09_a0cd260dcfbc478802522e05a1d251e4_bkransomware.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_a0cd260dcfbc478802522e05a1d251e4_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_a0cd260dcfbc478802522e05a1d251e4_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1720	2024-07-09_a0cd260dcfbc478802522e05a1d251e4_bkransomware.exe
Token: SeDebugPrivilege	2140	CTS.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 2340	1720	2024-07-09_a0cd260dcfbc478802522e05a1d251e4_bkransomware.exe	30
PID 1720 wrote to memory of 2340	1720	2024-07-09_a0cd260dcfbc478802522e05a1d251e4_bkransomware.exe	30
PID 1720 wrote to memory of 2340	1720	2024-07-09_a0cd260dcfbc478802522e05a1d251e4_bkransomware.exe	30
PID 1720 wrote to memory of 2340	1720	2024-07-09_a0cd260dcfbc478802522e05a1d251e4_bkransomware.exe	30
PID 1720 wrote to memory of 2140	1720	2024-07-09_a0cd260dcfbc478802522e05a1d251e4_bkransomware.exe	31
PID 1720 wrote to memory of 2140	1720	2024-07-09_a0cd260dcfbc478802522e05a1d251e4_bkransomware.exe	31
PID 1720 wrote to memory of 2140	1720	2024-07-09_a0cd260dcfbc478802522e05a1d251e4_bkransomware.exe	31
PID 1720 wrote to memory of 2140	1720	2024-07-09_a0cd260dcfbc478802522e05a1d251e4_bkransomware.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-07-09_a0cd260dcfbc478802522e05a1d251e4_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-09_a0cd260dcfbc478802522e05a1d251e4_bkransomware.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Users\Admin\AppData\Local\Temp\tSnkK9oZzfZhOkn.exe
  C:\Users\Admin\AppData\Local\Temp\tSnkK9oZzfZhOkn.exe
  2⤵
  - Executes dropped EXE
  PID:2340
- 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:2140

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\tSnkK9oZzfZhOkn.exe

Filesize
191KB

MD5
94a363cd532d88ac33997c25657a19b5

SHA1
a98f1a8361d0183651c0ef457b9ac4339e429bea

SHA256
13b98844b2fa4a39a4d8ebb414fc79450d5ab4f0c8f5141ac06d40b2a0431ea4

SHA512
3b1c87a67f63e4276453ec1e322f0c13896dd0524ef35f4e4037a481ce354feaa98440f85b784c0b90a900c59ef115654f687457180ea433ea0100427f5c26f5

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