7d9baddb804c8eb528fd8161882a518eb072710262e8bfa497cbb7bc34360331

Analysis

max time kernel
147s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
11/06/2024, 08:34

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General

Target

2024-06-11_69d90fe43fd378decc0a1c04337f8de3_bkransomware.exe
Size

96KB
MD5

69d90fe43fd378decc0a1c04337f8de3
SHA1

f36ef8784b2e0762e2c8bee5a566ad90e61b84d6
SHA256

7d9baddb804c8eb528fd8161882a518eb072710262e8bfa497cbb7bc34360331
SHA512

f8ecfc2a1ae1838dcc17e68ba87c9945e18ac4100a62f74d65a926a703f72f062a76072bfe724f3801742dfaca259e496a68dd0aa73e88b18170933343740cab
SSDEEP

1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTLoNri/DrVzNpIe:ZRpAyazIliazTL0kDZzIe

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4092	CoUluD8po04BYe3.exe
4776	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"	2024-06-11_69d90fe43fd378decc0a1c04337f8de3_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	2024-06-11_69d90fe43fd378decc0a1c04337f8de3_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1016	2024-06-11_69d90fe43fd378decc0a1c04337f8de3_bkransomware.exe
Token: SeDebugPrivilege	4776	CTS.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1016 wrote to memory of 4092	1016	2024-06-11_69d90fe43fd378decc0a1c04337f8de3_bkransomware.exe	82
PID 1016 wrote to memory of 4092	1016	2024-06-11_69d90fe43fd378decc0a1c04337f8de3_bkransomware.exe	82
PID 1016 wrote to memory of 4776	1016	2024-06-11_69d90fe43fd378decc0a1c04337f8de3_bkransomware.exe	84
PID 1016 wrote to memory of 4776	1016	2024-06-11_69d90fe43fd378decc0a1c04337f8de3_bkransomware.exe	84
PID 1016 wrote to memory of 4776	1016	2024-06-11_69d90fe43fd378decc0a1c04337f8de3_bkransomware.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-06-11_69d90fe43fd378decc0a1c04337f8de3_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-11_69d90fe43fd378decc0a1c04337f8de3_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1016
- C:\Users\Admin\AppData\Local\Temp\CoUluD8po04BYe3.exe
  C:\Users\Admin\AppData\Local\Temp\CoUluD8po04BYe3.exe
  2⤵
  - Executes dropped EXE
  PID:4092
- 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:4776

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\Microsoft\Office\16.0\excel.exe_Rules.xml

Filesize
393KB

MD5
008d50ab3b395cac677a60417bcbc4dd

SHA1
d002146a3008ebc0fa32f73506ec6de18a3cc7a3

SHA256
c2f2eb65624d3dcc5f59322230f1154b826139729d24cba9644cbf23652b6679

SHA512
623ed1faf4a4a64c220c9acda4514ca6f79457a5b63bf7f3d21b18e663c51ccaf99d6e3ac2959d5568acb4e93b7296f892f26902f6df873f52f2caaeb135e92c

Download Submit
C:\Users\Admin\AppData\Local\Temp\CoUluD8po04BYe3.exe

Filesize
25KB

MD5
abbd49c180a2f8703f6306d6fa731fdc

SHA1
d63f4bfe7f74936b2fbace803e3da6103fbf6586

SHA256
5f411c0bd9ed9a42b0f07ed568c7d0cf358a83063b225a1f8f7da3296dde90f1

SHA512
290dd984acc451b778f3db8c510bae7aec1d9547c3ad0a1829df731c136e4ecc9a37dc6a786cf8f1ecc4d14339aed1288af25055f450f6f953138c8d4d5c36e9

Download Submit
C:\Windows\CTS.exe

Filesize
71KB

MD5
f9d4ab0a726adc9b5e4b7d7b724912f1

SHA1
3d42ca2098475924f70ee4a831c4f003b4682328

SHA256
b43be87e8586ca5e995979883468f3b3d9dc5212fbfd0b5f3341a5b7c56e0fbc

SHA512
22a5f0e4b2716244e978ee50771823926f86baf0382ece48fd049f039cf77b5eb0691d83c61148903cff081fdbea969f47b8ed521647717f42bbed5c64552432

Download Submit
memory/4092-10-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads