59269fb043a3f8f4525e79547596a80485eb4cccf6afa6eb647deceb5acd260d

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
24/04/2024, 21:34

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General

Target

2024-04-24_d8f90553286bfa71d339287671a27f70_bkransomware.exe
Size

71KB
MD5

d8f90553286bfa71d339287671a27f70
SHA1

1d6b64f29ef764807c509e25a029c6544d9c8551
SHA256

59269fb043a3f8f4525e79547596a80485eb4cccf6afa6eb647deceb5acd260d
SHA512

f0fdbb4efa3e95dc7345df8bf55efece6ec90b5753692882e18b486d62b057e9b59e98d7108b456d9e72734bc244bb2ce44b5d0f85d7b2e65e8c6c90b3d66876
SSDEEP

1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTV:ZRpAyazIliazTV

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2844	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"	2024-04-24_d8f90553286bfa71d339287671a27f70_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	2024-04-24_d8f90553286bfa71d339287671a27f70_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2192	2024-04-24_d8f90553286bfa71d339287671a27f70_bkransomware.exe
Token: SeDebugPrivilege	2844	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2192 wrote to memory of 2844	2192	2024-04-24_d8f90553286bfa71d339287671a27f70_bkransomware.exe	28
PID 2192 wrote to memory of 2844	2192	2024-04-24_d8f90553286bfa71d339287671a27f70_bkransomware.exe	28
PID 2192 wrote to memory of 2844	2192	2024-04-24_d8f90553286bfa71d339287671a27f70_bkransomware.exe	28
PID 2192 wrote to memory of 2844	2192	2024-04-24_d8f90553286bfa71d339287671a27f70_bkransomware.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-24_d8f90553286bfa71d339287671a27f70_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-24_d8f90553286bfa71d339287671a27f70_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2192
- 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:2844

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\owkPwAJCwuAbP7F.exe

Filesize
71KB

MD5
5f755911fdf5f3069fb606984b5a020c

SHA1
e2907b23d8e3b88cda77f9249b9049fe277fae24

SHA256
ca0a2e8dd8c3c2f6f7369daed2a8457927327ecc86f00e582d446451d88e0928

SHA512
a564ca525f41a5ce250fe8cb3de276ae7e037ee28f21e84bb959e3cf73b709a90b323695d0dacbbfa7ad39cd0251d971bf9fc9917bc62ded0a5f2f6a498b916b

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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