c1a8c97b9f8542697abd44efd989e404254f718c2a65dd75b5dfa079844ce44d

General

Target
2026-05-04_1df28ba540c0ac91c02cd46f8d388259_bkransomware_elex_maze_rhadamanthys.exe
Size 211KB
Sample260504-tce34ae121
SHA256 c1a8c97b9f8542697abd44efd989e404254f718c2a65dd75b5dfa079844ce44d
MD5 1df28ba540c0ac91c02cd46f8d388259
SHA1 d4e2183783740976afeeb30b42d7d31bbc97b828
SHA512 47a28f6f5100fd23b487aceff51b8be2c18667d22c77ec17aeebc0a737804c25a9c3be3e21edde1deaa46a7db6807d3f3b2f2e1670aa9fa38f11aff68991a449
SSDEEP 3072:ZRpAyazIliazTplqBHhwUpslDj3P6nVgvv4LqwgULQZUjbmehQhIz3zy:xZ8azNl4BwUpSX/+Cv4LbgjZUj6eOhQy
TLSH
T1A024F10372C2E530E5B71A3249B8DE50067F7EB65EB18E9B33D8259D46F11C04E29BA7
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 3 IoCs

pid	Process
1520	krIK1l2Y03kX5J6.exe
1924	CTS.exe
4348	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_1df28ba540c0ac91c02cd46f8d388259_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_1df28ba540c0ac91c02cd46f8d388259_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 3 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_1df28ba540c0ac91c02cd46f8d388259_bkransomware_elex_maze_rhadamanthys.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	krIK1l2Y03kX5J6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CTS.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3240	2026-05-04_1df28ba540c0ac91c02cd46f8d388259_bkransomware_elex_maze_rhadamanthys.exe
Token: SeDebugPrivilege	1924	CTS.exe
Token: SeDebugPrivilege	4348	CTS.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3240 wrote to memory of 1520	3240	2026-05-04_1df28ba540c0ac91c02cd46f8d388259_bkransomware_elex_maze_rhadamanthys.exe	79
PID 3240 wrote to memory of 1924	3240	2026-05-04_1df28ba540c0ac91c02cd46f8d388259_bkransomware_elex_maze_rhadamanthys.exe	80

C:\Users\Admin\AppData\Local\Temp\2026-05-04_1df28ba540c0ac91c02cd46f8d388259_bkransomware_elex_maze_rhadamanthys.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-04_1df28ba540c0ac91c02cd46f8d388259_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:3240
- C:\Users\Admin\AppData\Local\Temp\krIK1l2Y03kX5J6.exe
  C:\Users\Admin\AppData\Local\Temp\krIK1l2Y03kX5J6.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1520
- 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:1924

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:4348

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 2c3f7555fdb559e6d3f0873c0b5663d487d143535e3a824d529bfb1d5307a79f
MD5 8f978dc833546dbd4db6d85bf06015f8
SHA1 75e7b59dcbe01ee739924abe4ed00858bd15e36a
SHA512 099470d7bcc609f1689cb37dc53eed3f6d094dd058463934c067fa808aae9f2cb551b4b293c715b49bd4147975818d736dd3fd2bd36274cc223ab77ab32e98e9
SSDEEP 12288:xC0Frf0wu4BzTAQSQAuef8c/WdzKHwAU2Ir3ut:DFPu4RjSQxez/Wd2VGTut
TLSH
T107841203B2C3C170F4B606730469CE25467FBEB69EB689973388259D16791E04F6A737
MD5 SHA1 SHA512 SSDEEP TLSH

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krIK1l2Y03kX5J6.exe

Path C:\Users\Admin\AppData\Local\Temp\krIK1l2Y03kX5J6.exe
Size 140KB
SHA256 a09f012723c5425bb928399302eb90362116855b3d0612347e76e8b7c82127b7
MD5 9c98d1a23efaf1b156a130cea7d2ee3a
SHA1 947a300323ce1b2468422ad62316cb5da039e423
SHA512 f74396ce284ca7f02f51474ddec39629310451743e7ca08deda9f43cb314d97c7671ea3c504f3f09495e733a6b9bc196ae971553e9e3c4741b287e613be6ef6f
SSDEEP 3072:1JEXiJu7COG12zuf9AxnPKiadKSUoxzWCtnRPF9EVnb43jaI5grI2v0:0K9J2JPT/SUxCtnRPF9cCGrI2v
TLSH
T198E3AF13BAC1D475F671083428769A91CA3FFC815F615EAB3B98357A4F342C09932EA7
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