24691a41f843d176ce18fafe53783a3b4e4f3417b4ea3c45ca17cad40c1d299d

Analysis

max time kernel
121s
max time network
125s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
24/04/2024, 22:31

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General

Target

2024-04-24_999fa60faf4f736b234bc71f74a5bb61_bkransomware.exe
Size

71KB
MD5

999fa60faf4f736b234bc71f74a5bb61
SHA1

ba86aca4f80422b083ff41db78ad21d2e4bf92a4
SHA256

24691a41f843d176ce18fafe53783a3b4e4f3417b4ea3c45ca17cad40c1d299d
SHA512

8def6ee9aa4ed3552a17849b69a0bc964ba315d1c632b5a6180798576fbedd057e2588e58e282685825093158a13737d9e3a7f0612806ee8fe0a952e9eab633f
SSDEEP

1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazTU:ZhpAyazIlyazTU

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2192	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_999fa60faf4f736b234bc71f74a5bb61_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_999fa60faf4f736b234bc71f74a5bb61_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1600	2024-04-24_999fa60faf4f736b234bc71f74a5bb61_bkransomware.exe
Token: SeDebugPrivilege	2192	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1600 wrote to memory of 2192	1600	2024-04-24_999fa60faf4f736b234bc71f74a5bb61_bkransomware.exe	28
PID 1600 wrote to memory of 2192	1600	2024-04-24_999fa60faf4f736b234bc71f74a5bb61_bkransomware.exe	28
PID 1600 wrote to memory of 2192	1600	2024-04-24_999fa60faf4f736b234bc71f74a5bb61_bkransomware.exe	28
PID 1600 wrote to memory of 2192	1600	2024-04-24_999fa60faf4f736b234bc71f74a5bb61_bkransomware.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-24_999fa60faf4f736b234bc71f74a5bb61_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-24_999fa60faf4f736b234bc71f74a5bb61_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1600
- 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:2192

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\2tLhMTYGRjay0KP.exe

Filesize
71KB

MD5
be4e656876aea5acfbc99dddc6fbdfd2

SHA1
9a9121dd58a28b67f09eb38b53902424210fc05c

SHA256
ff9cbf6407161c8b4c2901d23e2d4cf46842e46fab7610829bdea7a3110a1bbb

SHA512
259cafbd27685c1e1f5bbbb9e4cc17e5190e7c3376548a17af85131a799395ff8af5dafafa57cae1947f2451b8d2d005f3b94c95ca52b4a4540649d3adbf49eb

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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