4b3a1a9e6fc5a7b5e4e13dfdb691ae913607d98ee3f9041d1e693bbd6dc48b1e

General

Target
2026-08-22_7cc1483e5b2926771cc379392f7eb7cd_bkransomware_elex_maze_rhadamanthys.exe
Size 315KB
Sample260823-gs97ysen21
SHA256 4b3a1a9e6fc5a7b5e4e13dfdb691ae913607d98ee3f9041d1e693bbd6dc48b1e
MD5 7cc1483e5b2926771cc379392f7eb7cd
SHA1 6cfe626c7c18647076e2c4e11cee2868d6d101fb
SHA512 a9d6e22b0c0f876c66424c4ae16b25978103e9e1e0598e06b5fc3ca5c93429df4677b9d696c182143d548058eac41d190e1e42f304cec66b06461ca329d387b3
SSDEEP 6144:hZMaz0qN9YfxLmXY7Nj7IRXFRkonJZ0uIAxC7Hj:hS00qNCfZmXYJP4XFRBN0zj
TLSH
T17A640103BAC1C270F4B64A7548A48946067FBD765EF29DE77394129E40346D08E3ABBF
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
720	CTS.exe
4812	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"	2026-08-22_7cc1483e5b2926771cc379392f7eb7cd_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	2026-08-22_7cc1483e5b2926771cc379392f7eb7cd_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	2026-08-22_7cc1483e5b2926771cc379392f7eb7cd_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	4956	2026-08-22_7cc1483e5b2926771cc379392f7eb7cd_bkransomware_elex_maze_rhadamanthys.exe
Token: SeDebugPrivilege	720	CTS.exe
Token: SeDebugPrivilege	4812	CTS.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4956 wrote to memory of 720	4956	2026-08-22_7cc1483e5b2926771cc379392f7eb7cd_bkransomware_elex_maze_rhadamanthys.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-08-22_7cc1483e5b2926771cc379392f7eb7cd_bkransomware_elex_maze_rhadamanthys.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-22_7cc1483e5b2926771cc379392f7eb7cd_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:4956
- 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:720

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:4812

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 801ecabc64b808f3b8783dcea1776a69ca72e58424fb6dd01e49f0c6c95cd0c9
MD5 dd68e38e9252835224d1ea4d7f46dba1
SHA1 8a300bc546247423bd9ca2c0e8e7e8b3db305f9f
SHA512 3122c8be2197af0dbb68977abac6fa4764106ad2bbd90027d9efe133268e784d1492adb7f1b08bc0002bb01d6c2fdb6ea5550073e8a17d421139196372a140d4
SSDEEP 12288:hS0KktmxTmLWmo/tyEqRUOPvA+uG5eU2LXZFAru:D9mhSWj82O3AdG5dYXZEu
TLSH
T1F6C42203B382C075E87317714A70ED91822FBEBA4EF4DC6673D0249C25B55E15E2AE9B
MD5 SHA1 SHA512 SSDEEP TLSH

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CeY4a1uCtQfkoNi.exe

Path C:\Users\Admin\AppData\Local\Temp\CeY4a1uCtQfkoNi.exe
Size 315KB
SHA256 62b193007e174ec368da7eb09744e38b36604f19999b1d5e7bc7bb7756002972
MD5 fa982462253dcb4d1965f2bfbae415c4
SHA1 7aa56a9bf65b22fda34d8f13e9388db06088fcb1
SHA512 cbc96115dae2f386721a1ff742588ae2af9bdf0dc3ff9ebcb10bf737267c92b6e78ba3071eeaedd990b561e31ec3ecc98b14fcdffecccdeb74fc8279cb6f9556
SSDEEP 6144:hZMazh+9lFqSufYDCkDXx1MDmEsBrP61JmjDIUKEt8yMR:hS0h+PFqSHHsdsBrPHfzKVB
TLSH
T1AD641213B2DAD072E5E70ABA08A186204B7FBD325E714C9777C4204D46369D0AD7BBB7
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