b5c4c633bf4e19f4359f10f89d868089c4540bed0ddd1bb09d339e2189151b49

General

Target
2026-08-03_a37978a4afe9ae544b5102336d950f7c_bkransomware_elex_maze_rhadamanthys.exe
Size 95KB
Sample260803-kyaaassemb
SHA256 b5c4c633bf4e19f4359f10f89d868089c4540bed0ddd1bb09d339e2189151b49
MD5 a37978a4afe9ae544b5102336d950f7c
SHA1 1980a108e3e0001d35d5a8e5f7fc7e003a72ca57
SHA512 4431de45def47ad0dd6f7ec6cca746eb8fd7c1b61dab9f9af9536ecf5df666a9bc7a491a8259922ece5a356fdda3b94506d242686641c62f77b56ed2aeeb272b
SSDEEP 1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazT+6i0HgOYkkcaSkw8GXtNmk:ZhpAyazIlyazTXHgIaSkw8wtv
TLSH
T1E9939D03B6D28170E4B70A3609A9CE51066FBD721FB28E573384618E5A752C09F3AB77
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
5980	CTS.exe
3020	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"	2026-08-03_a37978a4afe9ae544b5102336d950f7c_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	2026-08-03_a37978a4afe9ae544b5102336d950f7c_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	2026-08-03_a37978a4afe9ae544b5102336d950f7c_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	4216	2026-08-03_a37978a4afe9ae544b5102336d950f7c_bkransomware_elex_maze_rhadamanthys.exe
Token: SeDebugPrivilege	5980	CTS.exe
Token: SeDebugPrivilege	3020	CTS.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4216 wrote to memory of 5980	4216	2026-08-03_a37978a4afe9ae544b5102336d950f7c_bkransomware_elex_maze_rhadamanthys.exe	88

C:\Users\Admin\AppData\Local\Temp\2026-08-03_a37978a4afe9ae544b5102336d950f7c_bkransomware_elex_maze_rhadamanthys.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-03_a37978a4afe9ae544b5102336d950f7c_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:4216
- 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:5980

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:3020

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 71fe9adfe5bcf64f36dd8fb9fd15bd5805f37016792e4c9c9e37b433ce1318cf
MD5 917904194b193f90642078a81a1bae63
SHA1 65ec1ef9c80e7f086ea49b0104e13d6b90b9ab29
SHA512 94c78ba97f4b083c6e0f4cf5722fc8f9e432f87a0756d7d4ee4884270f2b073e296a31a7cf07795feebe013e306cdecef21b8d0067d8e1d03cd000a2c89f20bf
SSDEEP 12288:hS0+SfKRimaoAU+v9BFeXqIRyuOeRhZV4S1+RijOSyaupV/WXjkt:D9KRioV+vHFe/yv6t91xOAuX/mkt
TLSH
T1C6C41243B6E2D5B0F0B2973286B4DD46875FF9324DA18E567398318D13A18C18E29FB7
MD5 SHA1 SHA512 SSDEEP TLSH

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QfzDHw469NRwWZ0.exe

Path C:\Users\Admin\AppData\Local\Temp\QfzDHw469NRwWZ0.exe
Size 95KB
SHA256 bef758626814f062f1231db0c5c2aa9e8c1ec43a2ecacd3ebe0bc44fbc44242e
MD5 ae463e5b9f55227a99d6c95be10a4eca
SHA1 436c6f3cce6077e6e39df29be9a071ef410e5f19
SHA512 2a20e3840013494dc3a2109b1c7e1411673f416c1c790933830a8cebf390de42ee796e33dba9c3d3c38b364a1762216dc4392339312fa7a3737ade404499dcb0
SSDEEP 1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazTD+aSJVW7xsr9OOGJ/JehQ:ZhpAyazIlyazTD+PVqg9e5
TLSH
T1EC938D13BAD2C171E4B70A7649A8DE50077FBE765EB18E5B73C4208E0A751C08E39B67
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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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads