4f7f97a94194d415928e5d1783e3708b886e8f8dafbc51294be3615e07223e80

General

Target

2024-07-09_5b0648364ad1b4bcb9c527040b7cc532_bkransomware.exe
Size

96KB
MD5

5b0648364ad1b4bcb9c527040b7cc532
SHA1

b58827eb4724d1b13374cdd69dcb2c5d187cd3bb
SHA256

4f7f97a94194d415928e5d1783e3708b886e8f8dafbc51294be3615e07223e80
SHA512

60bf07f7121272bacec0c595dccd129a7f892347447412c00f7561f76d63d46ab78d5941fa7940a136b3c092a6be0acc8c338457e44ab3da784b1c3bbb89a484
SSDEEP

1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazTDpnwk1uorGu0tZz:ZhpAyazIlyazTVwkVrGuwz

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2336	VE5DAWgaHXA71FV.exe
2740	CTS.exe

Loads dropped DLL 3 IoCs

pid	Process
3012	2024-07-09_5b0648364ad1b4bcb9c527040b7cc532_bkransomware.exe
3012	2024-07-09_5b0648364ad1b4bcb9c527040b7cc532_bkransomware.exe
2716	Process not Found

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"	2024-07-09_5b0648364ad1b4bcb9c527040b7cc532_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	2024-07-09_5b0648364ad1b4bcb9c527040b7cc532_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3012	2024-07-09_5b0648364ad1b4bcb9c527040b7cc532_bkransomware.exe
Token: SeDebugPrivilege	2740	CTS.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3012 wrote to memory of 2336	3012	2024-07-09_5b0648364ad1b4bcb9c527040b7cc532_bkransomware.exe	29
PID 3012 wrote to memory of 2336	3012	2024-07-09_5b0648364ad1b4bcb9c527040b7cc532_bkransomware.exe	29
PID 3012 wrote to memory of 2336	3012	2024-07-09_5b0648364ad1b4bcb9c527040b7cc532_bkransomware.exe	29
PID 3012 wrote to memory of 2336	3012	2024-07-09_5b0648364ad1b4bcb9c527040b7cc532_bkransomware.exe	29
PID 3012 wrote to memory of 2740	3012	2024-07-09_5b0648364ad1b4bcb9c527040b7cc532_bkransomware.exe	31
PID 3012 wrote to memory of 2740	3012	2024-07-09_5b0648364ad1b4bcb9c527040b7cc532_bkransomware.exe	31
PID 3012 wrote to memory of 2740	3012	2024-07-09_5b0648364ad1b4bcb9c527040b7cc532_bkransomware.exe	31
PID 3012 wrote to memory of 2740	3012	2024-07-09_5b0648364ad1b4bcb9c527040b7cc532_bkransomware.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-07-09_5b0648364ad1b4bcb9c527040b7cc532_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-09_5b0648364ad1b4bcb9c527040b7cc532_bkransomware.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3012
- C:\Users\Admin\AppData\Local\Temp\VE5DAWgaHXA71FV.exe
  C:\Users\Admin\AppData\Local\Temp\VE5DAWgaHXA71FV.exe
  2⤵
  - Executes dropped EXE
  PID:2336
- 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:2740

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\VE5DAWgaHXA71FV.exe

Filesize
96KB

MD5
c117e5ff1c9c150fd0201380f44868ea

SHA1
08a5fcc6dcfaecf9e11a40bca7927d5477cf6534

SHA256
f0ce3258b76e4e4df6c56751bf8bc65fb5b7d49c6ff69bd4d5787eb67a056113

SHA512
cf7ccf64c805e55fa945b635ec25a8af1b2621e1a6b8ce0c19f44e765d46a8fbff19c2bfd600d76153f2ada2f9c97f94f0a3cc6a502e03d32172aaa38c6ec798

Download Submit
C:\Windows\CTS.exe

Filesize
71KB

MD5
66df4ffab62e674af2e75b163563fc0b

SHA1
dec8a197312e41eeb3cfef01cb2a443f0205cd6e

SHA256
075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163

SHA512
1588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25

Download Submit
\Users\Admin\AppData\Local\Temp\VE5DAWgaHXA71FV.exe

Filesize
25KB

MD5
abbd49c180a2f8703f6306d6fa731fdc

SHA1
d63f4bfe7f74936b2fbace803e3da6103fbf6586

SHA256
5f411c0bd9ed9a42b0f07ed568c7d0cf358a83063b225a1f8f7da3296dde90f1

SHA512
290dd984acc451b778f3db8c510bae7aec1d9547c3ad0a1829df731c136e4ecc9a37dc6a786cf8f1ecc4d14339aed1288af25055f450f6f953138c8d4d5c36e9

Download Submit
memory/2336-15-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads