9dba025eae42a0332374d1f2e6c28dd3db6140ee2e30eacb1f45c1e6952d6b5e

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
04/05/2024, 02:28

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General

Target

2024-05-04_793c19d1b1924506d07f20a7f5221d9b_bkransomware.exe
Size

71KB
MD5

793c19d1b1924506d07f20a7f5221d9b
SHA1

a40b74ddac18599e3fbe01abee0d4439e24c6dd4
SHA256

9dba025eae42a0332374d1f2e6c28dd3db6140ee2e30eacb1f45c1e6952d6b5e
SHA512

2d934cc17375d4da37ed4ce11e69420b0eaf34598ce20cb879836468f736eae392a6ec9b112a3bbb3a6c8594e85484cc8c2958a8306528912d1f3f84f5260b2e
SSDEEP

1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazTu:ZhpAyazIlyazTu

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2632	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"	2024-05-04_793c19d1b1924506d07f20a7f5221d9b_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	2024-05-04_793c19d1b1924506d07f20a7f5221d9b_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2924	2024-05-04_793c19d1b1924506d07f20a7f5221d9b_bkransomware.exe
Token: SeDebugPrivilege	2632	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2924 wrote to memory of 2632	2924	2024-05-04_793c19d1b1924506d07f20a7f5221d9b_bkransomware.exe	28
PID 2924 wrote to memory of 2632	2924	2024-05-04_793c19d1b1924506d07f20a7f5221d9b_bkransomware.exe	28
PID 2924 wrote to memory of 2632	2924	2024-05-04_793c19d1b1924506d07f20a7f5221d9b_bkransomware.exe	28
PID 2924 wrote to memory of 2632	2924	2024-05-04_793c19d1b1924506d07f20a7f5221d9b_bkransomware.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-04_793c19d1b1924506d07f20a7f5221d9b_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-04_793c19d1b1924506d07f20a7f5221d9b_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2924
- 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:2632

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\H6HWmcAxFBHhUhF.exe

Filesize
71KB

MD5
d79cb013e7d6f96b9fef73a2ad220fed

SHA1
b80c8061c6a2475c5a38e957b63aaddc660293df

SHA256
295f01e163276c7555b60e974ca139fd391d9655830ffe9b3d2f075f1fac5b55

SHA512
1825417cde678771cd78c2ba1c3eeffc7a2a3d3ad29a9a1716850cbea27f69b180b94921834de27794e86988075c8c967780ac4f4f1b9d71c340816b0be65d2b

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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