25f8572393cea194fa9fd891fc551f97543ee01969251a6673622acfd4d75577

General

Target
2026-05-04_12686ceaa0624d71be81baf969ce1234_bkransomware_elex_maze_rhadamanthys.exe
Size 448KB
Sample260504-lepfjsft9s
SHA256 25f8572393cea194fa9fd891fc551f97543ee01969251a6673622acfd4d75577
MD5 12686ceaa0624d71be81baf969ce1234
SHA1 b7c0bd7e0b1c749cd88eac842e09f6bece68699f
SHA512 506b322335f73e51bb7799740949d2739175e8684aab3a5570b7533ed7cb6b614e55e38fd84980b6564c60a47f8cbf584edb7a21310c4651f4b46e280c3122f7
SSDEEP 6144:xZ8azKmMnW9/lnU8c2SKheZZTtQxP5ygP3JRFa4To+6CM0b9wENhmBzEK:xC0KcPnUPKhbPZP3fFa4ToshwymuK
TLSH
T1E7A41213B3D590B9E07746711259CFA517AFBC775BB68CEB3390225E06B01C01E2A7AB
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
5948	CTS.exe
3144	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"	2026-05-04_12686ceaa0624d71be81baf969ce1234_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

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	2026-05-04_12686ceaa0624d71be81baf969ce1234_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 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	2026-05-04_12686ceaa0624d71be81baf969ce1234_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	4960	2026-05-04_12686ceaa0624d71be81baf969ce1234_bkransomware_elex_maze_rhadamanthys.exe
Token: SeDebugPrivilege	5948	CTS.exe
Token: SeDebugPrivilege	3144	CTS.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4960 wrote to memory of 5948	4960	2026-05-04_12686ceaa0624d71be81baf969ce1234_bkransomware_elex_maze_rhadamanthys.exe	79

C:\Users\Admin\AppData\Local\Temp\2026-05-04_12686ceaa0624d71be81baf969ce1234_bkransomware_elex_maze_rhadamanthys.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-04_12686ceaa0624d71be81baf969ce1234_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:4960
- 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:5948

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:3144

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

excel.exe_Rules.xml

Path C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml
Size 391KB
SHA256 98ef4b6edf71938762b8330d4e7dea710b0036f8ae7d45d70b10255ef80a839f
MD5 32dc17749a4e84cf97a7d1edf041b519
SHA1 6a2b5b47ec83b4ab24641cb1d0c6912feb7da1d9
SHA512 c400312a37c27993fcb9acdd1aff6ee1fa9b7d9e3b4fffb269f92e3f2481b690004b18a0f10d7734b4d7d86b34346bcc1fad45d78c4d9e144c15226b328a2e23
SSDEEP 12288:xC0ALk0NKmU45g8RruQOUiiUvGikKxZlu8+1N:DykwBdWUyuikKTlu8+1N
TLSH
T1B684120373D1C030E532063A5475CB21463FB9B22EFADD6B3394A65E997A2D09E32B57
MD5 SHA1 SHA512 SSDEEP TLSH

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auv3ZKApv1fpzpr.exe

Path C:\Users\Admin\AppData\Local\Temp\auv3ZKApv1fpzpr.exe
Size 377KB
SHA256 ea2fcd9a57014825ee5f87091d83ff1f1d8695b720717cb1d83e45aab446b066
MD5 f38f50035412c11efd7d4e8f4e4bc991
SHA1 4241a1a3748c95090b9cc5c9901b3fed6d1d79da
SHA512 a059bbf49829e4acfbdd0ec4304c005a1aef78abe9f59e07d30edd15d5224bf6ecbba1a1e784d7e46f035e301fdc0c9fed3fcf8559753d4b2be04bfa70e4d31e
SSDEEP 1536:zs3qRuCSKSzr37blLMKcKW56kOoFj6ckDp5xgG8Rz0fTALWbDlhdJv8P8u6uSivp:5SKS3dLJv8P8u6uSivsUQK75IthyXV
TLSH
T15A84AD87F012A5536B8E663D93B0C1FB0DF4415BA6CB9C41705027FDEC66CAA0D96BB2
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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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads