fbc405ce7189b1511e63737e83f46aea4c15bbd66b08a1f9db701dd642d83782

General

Target
2026-08-20_1fc2f5e5e0e6592dc77c613efb59dda9_bkransomware_elex_maze_rhadamanthys.exe
Size 449KB
Sample260820-qc5f7scr21
SHA256 fbc405ce7189b1511e63737e83f46aea4c15bbd66b08a1f9db701dd642d83782
MD5 1fc2f5e5e0e6592dc77c613efb59dda9
SHA1 1eb25ea022a1d85e99923651b19cbe35c1f43b11
SHA512 9012a0c65bd1cb8306462dee2864ca2470c40ded24446341a7500d0334ecaa53f29be134d9ccc7e08e1ac815f5f149b0a061455a0c7be7c5bdce09dd1c0acda2
SSDEEP 6144:xZ8azmxHikQXW+re9YJpoaGVn/BY6o44MUwSr+ta0DdSrK9AN90LGYmO6JbYqR6l:xC0miVfrJpIJn4zz+pN9ANCLJIXs
TLSH
T1EFA412033BD2C072F4B7063A0978DF154A6F79795EB06D576384668D11722C0AE7A3BB
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
3020	CTS.exe
772	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"	2026-08-20_1fc2f5e5e0e6592dc77c613efb59dda9_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	2026-08-20_1fc2f5e5e0e6592dc77c613efb59dda9_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	2026-08-20_1fc2f5e5e0e6592dc77c613efb59dda9_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	5768	2026-08-20_1fc2f5e5e0e6592dc77c613efb59dda9_bkransomware_elex_maze_rhadamanthys.exe
Token: SeDebugPrivilege	3020	CTS.exe
Token: SeDebugPrivilege	772	CTS.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 5768 wrote to memory of 3020	5768	2026-08-20_1fc2f5e5e0e6592dc77c613efb59dda9_bkransomware_elex_maze_rhadamanthys.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-08-20_1fc2f5e5e0e6592dc77c613efb59dda9_bkransomware_elex_maze_rhadamanthys.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-20_1fc2f5e5e0e6592dc77c613efb59dda9_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:5768
- 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:3020

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:772

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 03f75a64631f6fbf42b71cad2a60455c7281f0759394e3e7eac5a13613741add
MD5 4c2385e87c26ec0e51dd2b2a8c4a2675
SHA1 534e8cf81ad3fe632416fac478f2a528beae1790
SHA512 2ad7ff7737b4dffd60a37c3e575ff0c49ea466b80f3a30731f36133a5dae22bf4aa08b8899e5619edd7f65233d0c77f115d072f9fe134d5beee048f0dbb32eb3
SSDEEP 12288:xC0kniAcmuCOfyn//cCjeuQI8xsQdsTEgahKBT0Y8d9ads:DkniAlu0MyeuP0jv2T0ZQs
TLSH
T117C4125376D2D032E4B746B649B89C23416F7E70AFB45D273280629E06790D2CD2B3B7
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

oB1uB6LUze1buoo.exe

Path C:\Users\Admin\AppData\Local\Temp\oB1uB6LUze1buoo.exe
Size 449KB
SHA256 c5dc69ffa130348ba41e8d15de09a034bd64a4ce80dd8d5ee709ffe1a835f983
MD5 e13d673963568e63e5b93caf2c0cbd1c
SHA1 5599ef9ab602d0c1aff4be5704e5fa6d48d9f3e6
SHA512 fa24fe0a84dc48a1d070751dfe45b1d33377c1a1a40207a54c611b24c704e84ab4b1960dbaf18bb00d98c0cbd00e9faa45be0d2a5112c91bd9dd06ca3b36703e
SSDEEP 6144:xZ8azyiC66PJq4Ow8+Eb8iSjb4fnFtJcwJZUqSrXPW3KGYbb2po/nM7Xg28EBCiL:xC0yiC66kHjUqSrfv3eXg2jpUCb
TLSH
T118A41213BAC5C234D0B34A3260E68B55069F7D316BB58DA7BB84318D61762D10F2AFB7
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

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

Submit Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads