559a26ca8bb1deb95e523fa48f67c3603d024ad0b68a138fd82519a457e1ef03

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
29-05-2024 20:24

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-05-29_2e069a24c03cb645aa25f51e3acaeb25_bkransomware.exe
Size

96KB
MD5

2e069a24c03cb645aa25f51e3acaeb25
SHA1

de0372a739a654281838360af5ada18041550e95
SHA256

559a26ca8bb1deb95e523fa48f67c3603d024ad0b68a138fd82519a457e1ef03
SHA512

a72a7ac00ba3f0e89f09af45768808c6acc65ef3e206b445dcef1f6f90125c89e153d3579255ca8de1569c867033e982e41b8dc31267c543ff7100a04c7fe63c
SSDEEP

1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTO9+EOrMEu0bBWedtfF:ZRpAyazIliazTNEMvjfF

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
3208	7IojrRsEUoAhTgu.exe
2332	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"	2024-05-29_2e069a24c03cb645aa25f51e3acaeb25_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	2024-05-29_2e069a24c03cb645aa25f51e3acaeb25_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	516	2024-05-29_2e069a24c03cb645aa25f51e3acaeb25_bkransomware.exe
Token: SeDebugPrivilege	2332	CTS.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 516 wrote to memory of 3208	516	2024-05-29_2e069a24c03cb645aa25f51e3acaeb25_bkransomware.exe	83
PID 516 wrote to memory of 3208	516	2024-05-29_2e069a24c03cb645aa25f51e3acaeb25_bkransomware.exe	83
PID 516 wrote to memory of 2332	516	2024-05-29_2e069a24c03cb645aa25f51e3acaeb25_bkransomware.exe	85
PID 516 wrote to memory of 2332	516	2024-05-29_2e069a24c03cb645aa25f51e3acaeb25_bkransomware.exe	85
PID 516 wrote to memory of 2332	516	2024-05-29_2e069a24c03cb645aa25f51e3acaeb25_bkransomware.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-05-29_2e069a24c03cb645aa25f51e3acaeb25_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-29_2e069a24c03cb645aa25f51e3acaeb25_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:516
- C:\Users\Admin\AppData\Local\Temp\7IojrRsEUoAhTgu.exe
  C:\Users\Admin\AppData\Local\Temp\7IojrRsEUoAhTgu.exe
  2⤵
  - Executes dropped EXE
  PID:3208
- 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:2332

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml

Filesize
394KB

MD5
3cb7f44d8a01f990fcd64970d37c27fd

SHA1
ef4931364013117e254b0f4704ed6b7e0b11751d

SHA256
0f01f341c45016af7845f693f14a18f4647d879a768d55a0ba75dad053f433d6

SHA512
6ca3ec5e9e0db56ec6d2787318b55c9ef87a8b4158fb4551a356fe246019ca26bfc7c3b45256843179256728062aad6cbca0382c2394a3ad1a4a77385fd7aa0e

Download Submit
C:\Users\Admin\AppData\Local\Temp\7IojrRsEUoAhTgu.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/3208-12-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads