92cc710d6357142fa544e1871d778b2f5fe1c69eaa89d74a28bb7f6272bd530a

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
25/05/2024, 03:08

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General

Target

2024-05-25_f605aa5f50a5188d8eb00ed3a5bf2c6e_bkransomware.exe
Size

71KB
MD5

f605aa5f50a5188d8eb00ed3a5bf2c6e
SHA1

0f8fb5bb77389fc593c21302034aaf341af4a0af
SHA256

92cc710d6357142fa544e1871d778b2f5fe1c69eaa89d74a28bb7f6272bd530a
SHA512

8571e8f8cc9e1365f2145980e20f9f73823445eb06fd5d294f666d5ae173a62050dbce22dd25c82ed33d2761d6b2d16298bbd3b9f099a2e41a55b73871fbad86
SSDEEP

1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazTW:ZhpAyazIlyazTW

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2748	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"	2024-05-25_f605aa5f50a5188d8eb00ed3a5bf2c6e_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	2024-05-25_f605aa5f50a5188d8eb00ed3a5bf2c6e_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2348	2024-05-25_f605aa5f50a5188d8eb00ed3a5bf2c6e_bkransomware.exe
Token: SeDebugPrivilege	2748	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2348 wrote to memory of 2748	2348	2024-05-25_f605aa5f50a5188d8eb00ed3a5bf2c6e_bkransomware.exe	29
PID 2348 wrote to memory of 2748	2348	2024-05-25_f605aa5f50a5188d8eb00ed3a5bf2c6e_bkransomware.exe	29
PID 2348 wrote to memory of 2748	2348	2024-05-25_f605aa5f50a5188d8eb00ed3a5bf2c6e_bkransomware.exe	29
PID 2348 wrote to memory of 2748	2348	2024-05-25_f605aa5f50a5188d8eb00ed3a5bf2c6e_bkransomware.exe	29

C:\Users\Admin\AppData\Local\Temp\2024-05-25_f605aa5f50a5188d8eb00ed3a5bf2c6e_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-25_f605aa5f50a5188d8eb00ed3a5bf2c6e_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2348
- 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:2748

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\sBox6O58eXB5gRx.exe

Filesize
71KB

MD5
356bd0251acafd7f6eed883fc68f0d06

SHA1
6e1a3aa26dfaffd488fa414fe7e260637ba2ff7f

SHA256
5c627b7edef1b2bc4d8d6578e45bb4e1ae72082ccf0c73e3ceabd21547c90475

SHA512
e51b78a8f572bb7dd306e2d0a291287822c0288723d0413d760a16b7c51607f5a57bba6a2d816affd12c7986be1774c3ba78a732c9a1ecb3f4acc846b306fc1b

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C:\Windows\CTS.exe

Filesize
71KB

MD5
66df4ffab62e674af2e75b163563fc0b

SHA1
dec8a197312e41eeb3cfef01cb2a443f0205cd6e

SHA256
075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163

SHA512
1588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads