139e43228d348664d5ea70ae691ccee17c957d5cf8d137390c9a646a9304e0ac

General

Target
2026-08-05_450a3f79abc313329f94bf8ff977be8f_bkransomware_elex_maze_rhadamanthys.exe
Size 557KB
Sample260805-xb7cqstenf
SHA256 139e43228d348664d5ea70ae691ccee17c957d5cf8d137390c9a646a9304e0ac
MD5 450a3f79abc313329f94bf8ff977be8f
SHA1 aaaae0e6222f3f064a42ffe568bf6244c45dcc04
SHA512 aaba9f5d1dcb5d807a27a0db90d0bfe9f6b09e2023af7e9362189d60f04ca1f66e24a25afcc3eecaf038981a90e1ed3084f4b7fa94120de458316de4ef142f23
SSDEEP 12288:hS0NpSOUilisjEHgkNOcijJwB8iOM5xlycioZ+sl901vTJ+:DvRkEd1+8iOM5xYFOe+
TLSH
T118C4220BBAC680B1E8364E335C78CA55863EBD362E754A4B32D1545D0AB22D18F3D777
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4916	CTS.exe
2028	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"	CTS.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	2026-08-05_450a3f79abc313329f94bf8ff977be8f_bkransomware_elex_maze_rhadamanthys.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	CTS.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	CTS.exe
File created	C:\Windows\CTS.exe	2026-08-05_450a3f79abc313329f94bf8ff977be8f_bkransomware_elex_maze_rhadamanthys.exe
File created	C:\Windows\CTS.exe	CTS.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	2026-08-05_450a3f79abc313329f94bf8ff977be8f_bkransomware_elex_maze_rhadamanthys.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CTS.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	6012	2026-08-05_450a3f79abc313329f94bf8ff977be8f_bkransomware_elex_maze_rhadamanthys.exe
Token: SeDebugPrivilege	4916	CTS.exe
Token: SeDebugPrivilege	2028	CTS.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 6012 wrote to memory of 4916	6012	2026-08-05_450a3f79abc313329f94bf8ff977be8f_bkransomware_elex_maze_rhadamanthys.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-08-05_450a3f79abc313329f94bf8ff977be8f_bkransomware_elex_maze_rhadamanthys.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-05_450a3f79abc313329f94bf8ff977be8f_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:6012
- 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:4916

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:2028

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

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 a0a531997821983a6f6c01e4875899e0b0c8251256dfa2673d8bcd321cf04522
MD5 81af0231f7ab8a6f9fcd95c62fd0f8e6
SHA1 c132755005ff26db0f60ad5884fef808c2d16ca2
SHA512 c0ee450811e4f9f6e8f32a60e1126ce5d460441b4cbb780fad12bc8d36707f1e85916170ebaf77b76377481543b9215c880adff63492dc0c41b6b5c1ea7f1d06
SSDEEP 12288:hS0orFFTCvXS67W9LGxllsN0V9XM2yxXgVd8LhE+3cCzSv4:D8HTCvXgRGxllsN0bDyId4XsgSQ
TLSH
T1EBC42307B5D7C472D0A2463649B0CE1107BFB9B2AF798C8B7B9010EF466A5C05EAC767
MD5 SHA1 SHA512 SSDEEP TLSH

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u5Egd8VB0UdHkrU.exe

Path C:\Users\Admin\AppData\Local\Temp\u5Egd8VB0UdHkrU.exe
Size 557KB
SHA256 80b49d2748fcb23ac1bb81f847c061c56198623593990caddd80a534d06aeef2
MD5 5ce10cdba708410803333e8411ba46f8
SHA1 bdb3ef9873da2a06370d164f360735ec2534b4d8
SHA512 d3a9278a7ce4f3a6a48c43878204002554bd81ef7f77d1e2dcbcdb6a284ded711be0e37f0cbc828eb6197d012fef9b9356befb1f5505da7edaf0aa0e7f2c2486
SSDEEP 12288:hS08nZxedPkv+Cob97+QL4aNPO943uzUsKyCmmB7sl:DQZQd8vQb97TXPOm3u7fsa
TLSH
T103C41243F5E282B0F4B286774C244D124A7FBEA64EB69EA72344218D0571AD09F3DBD7
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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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads