1148265325ccca98c4bee6c8da01ffbc3298a6cfcdf61989938e68b431b5e232

General

Target
2026-06-04_58f1f0b37e6597659345b125fff1fc48_bkransomware_elex_maze_rhadamanthys.exe
Size 3.2MB
Sample260604-nfwmcsc161
SHA256 1148265325ccca98c4bee6c8da01ffbc3298a6cfcdf61989938e68b431b5e232
MD5 58f1f0b37e6597659345b125fff1fc48
SHA1 a622e50ec751d2039a835df6e8b6fb0c8174b32e
SHA512 cdc18fd0ec522e0b43ef1bfa67065913364e86bf9b5e75374e7a1e37f0cbb027369899022e0a4ad3b3d40111df82e6d96ae1ac860aca0377c54c1649f83bd281
SSDEEP 49152:DOeffq48f3Bi92U2ZgQIDykQlMwI9zdphdw234Y4SDj5W4E6CHL0Wnsdkp:DPY8lfykQmbhIY4L4QQI
TLSH
T1F3F5336B73F29327D0E78C334679041905EFF9B118519B1E2690AA8E885D3C21F7BDB6
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

Malware Config

Signatures

Detects executables packed with Dotfuscator 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000026fd3-3.dat	INDICATOR_EXE_Packed_Dotfuscator

Executes dropped EXE 4 IoCs

pid	Process
4452	bA4UhdfjWEKQWam.exe
6044	CTS.exe
4528	bA4UhdfjWEKQWam.exe
1860	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"	2026-06-04_58f1f0b37e6597659345b125fff1fc48_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	2026-06-04_58f1f0b37e6597659345b125fff1fc48_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	2026-06-04_58f1f0b37e6597659345b125fff1fc48_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	bA4UhdfjWEKQWam.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bA4UhdfjWEKQWam.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4792	2026-06-04_58f1f0b37e6597659345b125fff1fc48_bkransomware_elex_maze_rhadamanthys.exe
Token: SeDebugPrivilege	6044	CTS.exe
Token: SeDebugPrivilege	1860	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4792 wrote to memory of 4452	4792	2026-06-04_58f1f0b37e6597659345b125fff1fc48_bkransomware_elex_maze_rhadamanthys.exe	81
PID 4792 wrote to memory of 6044	4792	2026-06-04_58f1f0b37e6597659345b125fff1fc48_bkransomware_elex_maze_rhadamanthys.exe	82
PID 4452 wrote to memory of 4528	4452	bA4UhdfjWEKQWam.exe	83

C:\Users\Admin\AppData\Local\Temp\2026-06-04_58f1f0b37e6597659345b125fff1fc48_bkransomware_elex_maze_rhadamanthys.exe
"C:\Users\Admin\AppData\Local\Temp\2026-06-04_58f1f0b37e6597659345b125fff1fc48_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:4792
- C:\Users\Admin\AppData\Local\Temp\bA4UhdfjWEKQWam.exe
  C:\Users\Admin\AppData\Local\Temp\bA4UhdfjWEKQWam.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4452
- - C:\Users\Admin\AppData\Local\Temp\bA4UhdfjWEKQWam.exe
    C:\Users\Admin\AppData\Local\Temp\bA4UhdfjWEKQWam.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=0x2a4,0x29c,0x2a8,0x2a0,0x2ac,0x4682fc,0x46830c,0x46831c
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4528
- 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:6044

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:1860

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 391KB
SHA256 be2a53c3aa880217cab1416cd50d754575a14f4db2f3d658a12522832a9d0cd9
MD5 ff48be57b5c4fbb030390269c4987b29
SHA1 cc3881d1238d1e3d9677c45ff97ba6e71f96d47c
SHA512 6b875349b9f79d846cb9eca1684c43fd48e8cc32faddb078aa9e8c4ae567af7d194aaa0b9c7c78ee48e550b4809ad1c7c3d5b8fbfa59fad10854fded0b02aa3f
SSDEEP 12288:xC0hGkf8D43oxlIyLRFBeX/KPSgs6aGYMRK:DhGkEcYj1FBe/Kqd65f0
TLSH
T119841203B5E2D171E0B71A7694A58C60427FBD379A358CA733E4228D1AF22C05E7976B
MD5 SHA1 SHA512 SSDEEP TLSH

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bA4UhdfjWEKQWam.exe

Path C:\Users\Admin\AppData\Local\Temp\bA4UhdfjWEKQWam.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 b43be87e8586ca5e995979883468f3b3d9dc5212fbfd0b5f3341a5b7c56e0fbc
MD5 f9d4ab0a726adc9b5e4b7d7b724912f1
SHA1 3d42ca2098475924f70ee4a831c4f003b4682328
SHA512 22a5f0e4b2716244e978ee50771823926f86baf0382ece48fd049f039cf77b5eb0691d83c61148903cff081fdbea969f47b8ed521647717f42bbed5c64552432
SSDEEP 1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazT:ZRpAyazIliazT
TLSH
T176636B03B6D2C171E4B70A7649B8CE51067FBE765EB18D5B33C4218E49752C08E3ABA7
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 b167084c35f64ee0db981b0642e3713f8b70e6f332ad04374f811e198b3c9a76
MD5 05fec5d8f293555e30e6e2f56ad34597
SHA1 8e8b2c69d39ac1de7cabc36e5108aaf8a65db25b
SHA512 84d22caacb401d298b7e1b1f80189fba3c6e615b8dce3a0d90f8d314554d0bfb30d7f7607700294ec652cd4e8bdc30ffdd508322e45359cf6eb703ceb65674f0
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