d725c509a577d81489c8640501b369db11211711aaa86254057a0bdb3c5507a6

General

Target
2026-06-03_b3f6fae04f1c17fc53175ee2286d7fba_bkransomware_elex_maze_rhadamanthys.exe
Size 95KB
Sample260603-wbbqdscy2x
SHA256 d725c509a577d81489c8640501b369db11211711aaa86254057a0bdb3c5507a6
MD5 b3f6fae04f1c17fc53175ee2286d7fba
SHA1 4f00f03fcdeabb70a87d9d28bb074ffddc8fb6ee
SHA512 d159850a7d18310111f679e91c369fe9a55811ad94a8e87e5c7559543e05c27c2d2ceae97232c12ba02581bc8e17c24a9e4148f4768c8c3c1d088b71cd6e7ad5
SSDEEP 1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTeolqK1V2q2XHadZG:ZRpAyazIliazTetQVKHaG
TLSH
T159939D1376D6C170E0B7067248A8DE610B7FBE765EB58D5B33C0218E0A756C09E39BA7
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4672	CTS.exe
1732	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"	2026-06-03_b3f6fae04f1c17fc53175ee2286d7fba_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	CTS.exe
File created	C:\Windows\CTS.exe	CTS.exe
File created	C:\Windows\CTS.exe	2026-06-03_b3f6fae04f1c17fc53175ee2286d7fba_bkransomware_elex_maze_rhadamanthys.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	2026-06-03_b3f6fae04f1c17fc53175ee2286d7fba_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	4316	2026-06-03_b3f6fae04f1c17fc53175ee2286d7fba_bkransomware_elex_maze_rhadamanthys.exe
Token: SeDebugPrivilege	4672	CTS.exe
Token: SeDebugPrivilege	1732	CTS.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4316 wrote to memory of 4672	4316	2026-06-03_b3f6fae04f1c17fc53175ee2286d7fba_bkransomware_elex_maze_rhadamanthys.exe	81

C:\Users\Admin\AppData\Local\Temp\2026-06-03_b3f6fae04f1c17fc53175ee2286d7fba_bkransomware_elex_maze_rhadamanthys.exe
"C:\Users\Admin\AppData\Local\Temp\2026-06-03_b3f6fae04f1c17fc53175ee2286d7fba_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:4316
- 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:4672

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:1732

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 e86d9001ae98c217b96d4f3e34be325e9196a0ed46056077591958773f641dd0
MD5 f72434cf4156854546a689aeb3833c25
SHA1 26dd1b6f9e9a9c20a2854539a81db9621b5748c8
SHA512 d52c6f92b1c8d23fce351389635d2027777504d84255d226338b93b8fa2fb3b54d942c86ed172452beef77403258b60d11df73f8449accd1c4c2b1e334a2bc69
SSDEEP 6144:xZ8az86Lpo3Puqxfur9UzSzpVKEwDF3bnn2MhfbyCYVx2CMr415LRJR:xC086loWqx0UzSA3j2M5boVx/MkRn
TLSH
T19F841243BAD8C675E8B317B114A88D660A6FBC350E715DC73394399D46B60C08D3A7BB
MD5 SHA1 SHA512 SSDEEP TLSH

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yXQuaLTobuYy79U.exe

Path C:\Users\Admin\AppData\Local\Temp\yXQuaLTobuYy79U.exe
Size 95KB
SHA256 237cfc61c6ae57178bad998e2199af2efc01cdf500a57911c86d444402b09145
MD5 be757e8a421e458368503985375d2d97
SHA1 db1132fb048647fcab8c93a9c9a484504326d2c0
SHA512 c13700333fa93e79c74979e4fe71cfe3982f4d22f513603e7087120e214d29e52b881693b005567856c2827d1aa879588378f495dcc735c5bd45bc2eaa9a1c66
SSDEEP 1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTebJfbWO3mjvQgyICwoMCyV/:ZRpAyazIliazTebJfbWDvQgyxwVCyV/
TLSH
T118939D03BAD68070F4B30A3649A5CE6106BFBE765F718E5B37C0259E09752C05E39BA7
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