f32269647d556cbb7a39182a256773e13b5dcb7dd5a5ce296c2ecf067d4a4386

General

Target
2026-07-23_2453c202f1ac2d552eb3a3e988292025_bkransomware_elex_maze_rhadamanthys.exe
Size 3.2MB
Sample260724-brmsdayzbt
SHA256 f32269647d556cbb7a39182a256773e13b5dcb7dd5a5ce296c2ecf067d4a4386
MD5 2453c202f1ac2d552eb3a3e988292025
SHA1 6dcf5a1f459c9bb6304830d7a6ec1fbd69e60d34
SHA512 693b8449a733186393ab3276bac2e21a27a20bef2a9bd44fedef17016516d49ec49081e6ab8c93f209aba7f99b406852824859f027f34e662d64d53aa1098881
SSDEEP 49152:DUXVqKxRHt+4CxME0k5R5ZbyL0KwXxj7Uk0AInXrBpHm1gkgGDlhhZdsj5YjlR2W:DUT/tnPSbyLbOdZqXrBpGSGTh2CjOri
TLSH
T1C1F5336BBABEB864E5E205B0C9D03E4907FF78B4DCA6C71166CD184C4493E91DD32A93
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

Malware Config

Signatures

Detects executables packed with Dotfuscator 1 IoCs

resource	yara_rule
behavioral2/files/0x000a000000019cb5-4.dat	INDICATOR_EXE_Packed_Dotfuscator

Executes dropped EXE 4 IoCs

pid	Process
4200	mvnz1q4jCsBRWt3.exe
6136	CTS.exe
4788	mvnz1q4jCsBRWt3.exe
3340	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"	2026-07-23_2453c202f1ac2d552eb3a3e988292025_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	2026-07-23_2453c202f1ac2d552eb3a3e988292025_bkransomware_elex_maze_rhadamanthys.exe
File created	C:\Windows\CTS.exe	CTS.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	2026-07-23_2453c202f1ac2d552eb3a3e988292025_bkransomware_elex_maze_rhadamanthys.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mvnz1q4jCsBRWt3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CTS.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mvnz1q4jCsBRWt3.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	448	2026-07-23_2453c202f1ac2d552eb3a3e988292025_bkransomware_elex_maze_rhadamanthys.exe
Token: SeDebugPrivilege	6136	CTS.exe
Token: SeDebugPrivilege	3340	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 448 wrote to memory of 4200	448	2026-07-23_2453c202f1ac2d552eb3a3e988292025_bkransomware_elex_maze_rhadamanthys.exe	89
PID 448 wrote to memory of 6136	448	2026-07-23_2453c202f1ac2d552eb3a3e988292025_bkransomware_elex_maze_rhadamanthys.exe	90
PID 4200 wrote to memory of 4788	4200	mvnz1q4jCsBRWt3.exe	91

C:\Users\Admin\AppData\Local\Temp\2026-07-23_2453c202f1ac2d552eb3a3e988292025_bkransomware_elex_maze_rhadamanthys.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-23_2453c202f1ac2d552eb3a3e988292025_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:448
- C:\Users\Admin\AppData\Local\Temp\mvnz1q4jCsBRWt3.exe
  C:\Users\Admin\AppData\Local\Temp\mvnz1q4jCsBRWt3.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4200
- - C:\Users\Admin\AppData\Local\Temp\mvnz1q4jCsBRWt3.exe
    C:\Users\Admin\AppData\Local\Temp\mvnz1q4jCsBRWt3.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=0x2a8,0x2b0,0x2c4,0x2c0,0x2c8,0xe782fc,0xe7830c,0xe7831c
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4788
- 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:6136

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:3340

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

officeclicktorun.exe_Rules.xml

Path C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\officeclicktorun.exe_Rules.xml
Size 557KB
SHA256 fa50ba7f3fb8e36ad5524bd461d0850a9896eed28252ed6bf4956158bb7b0f10
MD5 1e75b3ae381aa03572b27b987af266e3
SHA1 802877c7444c3ba522803282c07aac85fd0b6ac6
SHA512 10fc12bc1ebc351d64fa20682052d485e7a1b10c234a60ac5334f03b26974eb83b7a9c6099ea2adc6e8233fe92131065a11e34a9ffe46cc703f0d2cb4763aa3b
SSDEEP 12288:hS06aEcBGtVaKItqMku+uE5XltNJiroeTJuvsNx:D6aEcBwaaMSbvNJpeasNx
TLSH
T178C41203B6E6C1B4F0621B764EB5D9594AAF7AB25FB46C4777A0218E04702C18F3DB27
MD5 SHA1 SHA512 SSDEEP TLSH

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mvnz1q4jCsBRWt3.exe

Path C:\Users\Admin\AppData\Local\Temp\mvnz1q4jCsBRWt3.exe
Size 3.1MB
SHA256 b9e001c5ef4845c2c0ce7a1ce134c774a7cd011af31dfbe2a13a96da2f68570e
MD5 a20245af2627cc9d55fbb3a1c682a334
SHA1 2ddbd81a16c18a7d5099f171473439bf84210a16
SHA512 f2a1d8e559dcd3016c3ad67c3c74e88ec62adc5a36ebf16df46f13d60627a9fc3b57dc9746f4551284d1c7eb79b364e76db7e539bfb8a9c20e1828f80bff9d1b
SSDEEP 24576:9yn2D7bFEc7r34rgxlqxjHHTVKIAF3XwVTTIUpWVH1kknPrMkkkskkkkkRkkkkkX:Ug7bV4UxExTTo6TkUEmT5xxvRCI5D
TLSH
T1DFE55C13BEC04032EAB70670B87BBB51557A7E209F1364CF7AC8362E1C716D1AA72756
MD5 SHA1 SHA512 SSDEEP TLSH

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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 2dfc6dafa7e92a5e16925e6894125fe73b29ccde7346040f4b80bb3f6cd20c37
MD5 d44bffe580ba94cf4b843176909cd7b1
SHA1 c803dfeb7fc994a2b0e4d396dbb18c636af5b7c3
SHA512 d42680e4699d51a0733a3f02d0df82fb15e94d4ae255ee49dfe0fe57b0218cc4fb380cf70ae4a9f412c550f0b825d239b98ba2faabff211d13e12a92c98f56f6
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