1bff68e3536a656f5c888ec66cdae8173b8c84a04e8b66bcb06790f230e4d846

General

Target
2026-06-05_4436c9b5231c8ea1bb7a730d5f0e2134_bkransomware_elex_maze_rhadamanthys.exe
Size 3.2MB
Sample260605-p4rtrahs2n
SHA256 1bff68e3536a656f5c888ec66cdae8173b8c84a04e8b66bcb06790f230e4d846
MD5 4436c9b5231c8ea1bb7a730d5f0e2134
SHA1 61e7eaa8415bbbf7a76024c2df5116142ff7183d
SHA512 b44fb0e6ee2b8c9aa7401c966bbd86bf38f352f75783d6fdfc376c1904f51c563f2629ddcfe1b6bdd26b3bd3a8bdcb5bfe819ebdb7e5b6e92134a9f2e69c0fff
SSDEEP 98304:DCQAU4up3H9YoCt+Eb9cogosG99g/RaSF:8kp9Ct+kcoPX99goC
TLSH
T10EF5332B3186E993F52344377B76EBB15D0EB5B642A40C473BC869AD4810B84E93DB37
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

discovery persistence spyware stealer

Malware Config

Signatures

Custom signature

Detects executables packed with Dotfuscator 1 IoCs

resource	yara_rule
behavioral2/files/0x002400000002b367-3.dat	INDICATOR_EXE_Packed_Dotfuscator

Executes dropped EXE 4 IoCs

pid	Process
4928	paqSWBTIM3BFsXD.exe
4020	CTS.exe
4464	paqSWBTIM3BFsXD.exe
3312	CTS.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 3 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"	2026-06-05_4436c9b5231c8ea1bb7a730d5f0e2134_bkransomware_elex_maze_rhadamanthys.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	CTS.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	CTS.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	CTS.exe
File created	C:\Windows\CTS.exe	2026-06-05_4436c9b5231c8ea1bb7a730d5f0e2134_bkransomware_elex_maze_rhadamanthys.exe
File created	C:\Windows\CTS.exe	CTS.exe

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-06-05_4436c9b5231c8ea1bb7a730d5f0e2134_bkransomware_elex_maze_rhadamanthys.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CTS.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	paqSWBTIM3BFsXD.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	paqSWBTIM3BFsXD.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2808	2026-06-05_4436c9b5231c8ea1bb7a730d5f0e2134_bkransomware_elex_maze_rhadamanthys.exe
Token: SeDebugPrivilege	4020	CTS.exe
Token: SeDebugPrivilege	3312	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2808 wrote to memory of 4928	2808	2026-06-05_4436c9b5231c8ea1bb7a730d5f0e2134_bkransomware_elex_maze_rhadamanthys.exe	83
PID 2808 wrote to memory of 4020	2808	2026-06-05_4436c9b5231c8ea1bb7a730d5f0e2134_bkransomware_elex_maze_rhadamanthys.exe	84
PID 4928 wrote to memory of 4464	4928	paqSWBTIM3BFsXD.exe	85

C:\Users\Admin\AppData\Local\Temp\2026-06-05_4436c9b5231c8ea1bb7a730d5f0e2134_bkransomware_elex_maze_rhadamanthys.exe
"C:\Users\Admin\AppData\Local\Temp\2026-06-05_4436c9b5231c8ea1bb7a730d5f0e2134_bkransomware_elex_maze_rhadamanthys.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2808
- C:\Users\Admin\AppData\Local\Temp\paqSWBTIM3BFsXD.exe
  C:\Users\Admin\AppData\Local\Temp\paqSWBTIM3BFsXD.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4928
- - C:\Users\Admin\AppData\Local\Temp\paqSWBTIM3BFsXD.exe
    C:\Users\Admin\AppData\Local\Temp\paqSWBTIM3BFsXD.exe --crash-handler "--database=c:\users\admin\appdata\local\Google\Software Reporter Tool" --url=https://clients2.google.com/cr/report --annotation=plat=Win32 --annotation=prod=ChromeFoil --annotation=ver=18.102.0 --initial-client-data=0x2a8,0x2ac,0x2b0,0x298,0x2b4,0x10d82fc,0x10d830c,0x10d831c
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4464
- C:\Windows\CTS.exe
  "C:\Windows\CTS.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4020

C:\Windows\CTS.exe
C:\Windows\CTS.exe
1⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:3312

Network

MITRE ATT&CK Enterprise v16

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

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

1

T1012

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

excel.exe_Rules.xml

Path C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml
Size 393KB
SHA256 32ec760366cdb082923fb64e9b43c98365e0afe8eba66e6c3fcbb9e41443c792
MD5 f3e7d859e2e2d42f7daf7994a29beb3f
SHA1 bcaf3ab236d415a8c11a867f783543628149314d
SHA512 f0de11b5934041201bcc0949092a414f4ebd0fdca00f237477791dd4bda3d96b087e690ce99affc54456a203f6960dd38dbe9cbc2addc741e7fc4208f3aed292
SSDEEP 6144:hZMazSKvR+1MfRQTujEkiuLP17Jhy4mG38zNxKYMJqvqE7LUYUtrS1hfqOVJbXwA:hS07WECer/NsxKJE+5OHwcV
TLSH
T1C6841223BAC5C1B1F4739A3548E58C25026FBE794EB18E973BE0114D2D645C1CE2BBA7
MD5 SHA1 SHA512 SSDEEP TLSH

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paqSWBTIM3BFsXD.exe

Path C:\Users\Admin\AppData\Local\Temp\paqSWBTIM3BFsXD.exe
Size 3.1MB
SHA256 b9e001c5ef4845c2c0ce7a1ce134c774a7cd011af31dfbe2a13a96da2f68570e
MD5 a20245af2627cc9d55fbb3a1c682a334
SHA1 2ddbd81a16c18a7d5099f171473439bf84210a16
SHA512 f2a1d8e559dcd3016c3ad67c3c74e88ec62adc5a36ebf16df46f13d60627a9fc3b57dc9746f4551284d1c7eb79b364e76db7e539bfb8a9c20e1828f80bff9d1b
SSDEEP 24576:9yn2D7bFEc7r34rgxlqxjHHTVKIAF3XwVTTIUpWVH1kknPrMkkkskkkkkRkkkkkX:Ug7bV4UxExTTo6TkUEmT5xxvRCI5D
TLSH
T1DFE55C13BEC04032EAB70670B87BBB51557A7E209F1364CF7AC8362E1C716D1AA72756
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

CTS.exe

Path C:\Windows\CTS.exe
Size 71KB
SHA256 075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163
MD5 66df4ffab62e674af2e75b163563fc0b
SHA1 dec8a197312e41eeb3cfef01cb2a443f0205cd6e
SHA512 1588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25
SSDEEP 1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazT:ZhpAyazIlyazT
TLSH
T119636B03B6D2C171E4B70A7649B8CE51067FBE765EB18D5B33C4218E49752C08E3ABA7
MD5 SHA1 SHA512 SSDEEP TLSH

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settings.dat

Path \??\c:\users\admin\appdata\local\Google\Software Reporter Tool\settings.dat
Size 40B
SHA256 77e7bf3ec0cb8716615a1897f04cdbbe56963f2eedf3f8481f4507d5d6676ad7
MD5 30313f954d7a64d33b1ba6f0b06fd335
SHA1 88fd9821454fa13d7aa73409d902be037d335ed6
SHA512 c7a0793bc011dbcbd1eedd6548c19dc1da63c79ae9196d9955a3ed2429d10e28fb39630f1eedcf75ecabb5e980841862e476272a8daaa134ca72fb4932b235ca
MD5 SHA1 SHA512

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads