022b5e5d1ed1b12e97ceec990e40bd365b5ed8e279ca4f738e8c9d3409bd243a

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
06-06-2024 20:15

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General

Target

2024-06-06_fa28ad7152748aee5ec9361f19498765_bkransomware.exe
Size

71KB
MD5

fa28ad7152748aee5ec9361f19498765
SHA1

7b4453099671c532a13b617aa56cfc8ecde4defe
SHA256

022b5e5d1ed1b12e97ceec990e40bd365b5ed8e279ca4f738e8c9d3409bd243a
SHA512

b319a2df10b59fcfca0a195cbece0e90612f5c622654d3af50187ddd3f58278689fd6648a7769e1bc7da6551750715c29fc7077f55e92e858241bf970e437d39
SSDEEP

1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTt:ZRpAyazIliazTt

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2944	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"	2024-06-06_fa28ad7152748aee5ec9361f19498765_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	2024-06-06_fa28ad7152748aee5ec9361f19498765_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2360	2024-06-06_fa28ad7152748aee5ec9361f19498765_bkransomware.exe
Token: SeDebugPrivilege	2944	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2360 wrote to memory of 2944	2360	2024-06-06_fa28ad7152748aee5ec9361f19498765_bkransomware.exe	28
PID 2360 wrote to memory of 2944	2360	2024-06-06_fa28ad7152748aee5ec9361f19498765_bkransomware.exe	28
PID 2360 wrote to memory of 2944	2360	2024-06-06_fa28ad7152748aee5ec9361f19498765_bkransomware.exe	28
PID 2360 wrote to memory of 2944	2360	2024-06-06_fa28ad7152748aee5ec9361f19498765_bkransomware.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-06_fa28ad7152748aee5ec9361f19498765_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-06_fa28ad7152748aee5ec9361f19498765_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2360
- 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:2944

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\FE6EAlt6OxIH4X4.exe

Filesize
71KB

MD5
a46f5ccec64ab6b64643eaf133fa69f3

SHA1
1b59119c98d511b1dea2b67b3861b32396224b24

SHA256
b41f54de8eaa70115bbcd1eba5b4935cafa6543223bd66c6dea7a1a67e057d4b

SHA512
372a76741cf0450586df95486e68d46ae65c876a3dd772834355ca8445d472454a400644872dffcb3d442cd10fc8a916836e1784f7ecd69a2f7eea6c04c3907e

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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