a37140af6821d6502658d293e7f637489c137f5ec0cfd264c990d82d3d4f2722

General

Target
2026-07-23_f3b71cb3862c75058ddb0e81eab9c6bc_bkransomware_elex_maze_rhadamanthys.exe
Size 3.2MB
Sample260723-3pxncadj6s
SHA256 a37140af6821d6502658d293e7f637489c137f5ec0cfd264c990d82d3d4f2722
MD5 f3b71cb3862c75058ddb0e81eab9c6bc
SHA1 0ed9f4fa732ce382103d30d1a32c17ea8aab7165
SHA512 71de0dc0eccf34b53b00ea9c5246d27de37bcca1725e17dfed4e56a69120b4c6ac133faddcd34a5452753d3b44d5b64fbf4e9d29ea989e73ef9d9fb36b6f5068
SSDEEP 98304:DwJoXuxz3MYPFcPIzkg2rKK4szUSwWEn52whOca:81xz8YPeP+2bTwhOD
TLSH
T1A2F5330336C384B5D37224398ED65144423F7E0E8A7F496E5F64A0AE46EE1C17F267AB
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

Malware Config

Signatures

Detects executables packed with Dotfuscator 1 IoCs

resource	yara_rule
behavioral2/files/0x000d000000016cdc-4.dat	INDICATOR_EXE_Packed_Dotfuscator

Executes dropped EXE 4 IoCs

pid	Process
4956	aB5LIhhPWmKyhd8.exe
5012	CTS.exe
1260	aB5LIhhPWmKyhd8.exe
4932	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_f3b71cb3862c75058ddb0e81eab9c6bc_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_f3b71cb3862c75058ddb0e81eab9c6bc_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_f3b71cb3862c75058ddb0e81eab9c6bc_bkransomware_elex_maze_rhadamanthys.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aB5LIhhPWmKyhd8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CTS.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aB5LIhhPWmKyhd8.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4500	2026-07-23_f3b71cb3862c75058ddb0e81eab9c6bc_bkransomware_elex_maze_rhadamanthys.exe
Token: SeDebugPrivilege	5012	CTS.exe
Token: SeDebugPrivilege	4932	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4500 wrote to memory of 4956	4500	2026-07-23_f3b71cb3862c75058ddb0e81eab9c6bc_bkransomware_elex_maze_rhadamanthys.exe	89
PID 4500 wrote to memory of 5012	4500	2026-07-23_f3b71cb3862c75058ddb0e81eab9c6bc_bkransomware_elex_maze_rhadamanthys.exe	90
PID 4956 wrote to memory of 1260	4956	aB5LIhhPWmKyhd8.exe	91

C:\Users\Admin\AppData\Local\Temp\2026-07-23_f3b71cb3862c75058ddb0e81eab9c6bc_bkransomware_elex_maze_rhadamanthys.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-23_f3b71cb3862c75058ddb0e81eab9c6bc_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:4500
- C:\Users\Admin\AppData\Local\Temp\aB5LIhhPWmKyhd8.exe
  C:\Users\Admin\AppData\Local\Temp\aB5LIhhPWmKyhd8.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4956
- - C:\Users\Admin\AppData\Local\Temp\aB5LIhhPWmKyhd8.exe
    C:\Users\Admin\AppData\Local\Temp\aB5LIhhPWmKyhd8.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=0x2c0,0x2b8,0x2c4,0x2bc,0x2c8,0xc582fc,0xc5830c,0xc5831c
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1260
- 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:5012

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:4932

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 9541cc1b6fc35d3b0a03e4393dfc88c53db23422fba49f460a283dcdbc984299
MD5 e9f89b36a62b887c648011a7cef3938e
SHA1 feec58f339de8936e035e795de73b450f526f8ee
SHA512 ff12721b7bbf04c6c546b444e21440ab99154466c6264820152d110a887e68855400ae1cc16b7ebcfc2ffc57079ec7dcd92dbd9ab1b5ec2e4e37afa78a9d28d3
SSDEEP 12288:hS0nAQUoeyryVKMw9dZcPewcvlr1Fr7Igb9MjgfM1VdtUiLU:DAPoj8Jw9dZcPpcNrHIgbWVttbI
TLSH
T17AC4221B76D590B1F0B705720CB989100A3FBEB29FA98E577784385E49B09D04FB6B23
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

aB5LIhhPWmKyhd8.exe

Path C:\Users\Admin\AppData\Local\Temp\aB5LIhhPWmKyhd8.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 26a618a2fde2caea04b5b99b28a86a536d3b6aa2ffe4bf724a9bd326bf28e21b
MD5 78916166a4092f431ac6d86f1a79ab32
SHA1 20fdec8672fa3ae3f6c7c1ca949651bdd224b221
SHA512 30e5be060de27b66b1de5167054260c7ed2a08d5fcfe669d8ca10e24244265e41104fdaeb0bd77d07ea4a05bf3ec30d3d176b72716a03abc4468adf179358d0d
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