503198d7fe096f85db1d6504762f3c4669a6a7b688fdf19b519347dee4e30539

General

Target
2026-08-25_99d5264cfc9d9786867e1ac7cff2235c_bkransomware_elex_maze_rhadamanthys.exe
Size 95KB
Sample260826-tnv9fssbpg
SHA256 503198d7fe096f85db1d6504762f3c4669a6a7b688fdf19b519347dee4e30539
MD5 99d5264cfc9d9786867e1ac7cff2235c
SHA1 01a0cb5e6da9c3a09065d2e0594941ae00888c3e
SHA512 2642e398c84d5c689c44280215738a94fdf517ef2c5f349b243386148edc5c9506c2b77c0218dcba7d62331d037686c8847c5917a24deddf6afa8466011e3f0d
SSDEEP 1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTfaWuTBZJefCSfsAS4mEq23:ZRpAyazIliazTfaWeBex0/h23
TLSH
T162939D03B6D2C170E4B70A7209A5CE5106BFBE765FB18D5B33C4219E09756D08E3ABA7
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4124	CTS.exe
3116	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"	2026-08-25_99d5264cfc9d9786867e1ac7cff2235c_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	2026-08-25_99d5264cfc9d9786867e1ac7cff2235c_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	2026-08-25_99d5264cfc9d9786867e1ac7cff2235c_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	4504	2026-08-25_99d5264cfc9d9786867e1ac7cff2235c_bkransomware_elex_maze_rhadamanthys.exe
Token: SeDebugPrivilege	4124	CTS.exe
Token: SeDebugPrivilege	3116	CTS.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4504 wrote to memory of 4124	4504	2026-08-25_99d5264cfc9d9786867e1ac7cff2235c_bkransomware_elex_maze_rhadamanthys.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-08-25_99d5264cfc9d9786867e1ac7cff2235c_bkransomware_elex_maze_rhadamanthys.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-25_99d5264cfc9d9786867e1ac7cff2235c_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:4504
- 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:4124

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:3116

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 8f940fd99ab766e3ecdc9b4342fd8696ca2bd941b8a46fc01b4e3a6358932fd0
MD5 8722e5ec83266efa006e7b20efc366b7
SHA1 c2c7ab70dbf1afffbb7bfdd34b9b1043cf7f6385
SHA512 2a4c9e8949e61399b666db4e7b8bbc50168c73e293b6be4f5076bdb7c1e6341af89d0590a3e1da790b877815015b48ee1f9feeeb04305c8bdb4b3026d3518c1f
SSDEEP 12288:xC0sJstarBeyGra28etsgdR9QhfUeIBxsPxZFhiIVVyumAn5+bnZyb:DsJHNeyG4e/gXFh3VYUgnK
TLSH
T171C4120376D78239F0664B760A79CEA407AF3FB59FB18D5F3358119D06A21E14E29B23
MD5 SHA1 SHA512 SSDEEP TLSH

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TV9ARZ3ef0u48bm.exe

Path C:\Users\Admin\AppData\Local\Temp\TV9ARZ3ef0u48bm.exe
Size 95KB
SHA256 eec1d243bfe4e1ae4482c4b8d45b1e0e152b34a842bfc9bdfbe951febe0add68
MD5 be8fd184a5bae1454009ed7d97d7697f
SHA1 8eb393567f19c393267ee6d5ae7cf28259abc122
SHA512 6ea541d187885a4afa4e29aee74ba802b92b858e6a1942507f48c8cb82411ca6f652c19f036424354a9e3dad1af5fc6160c1e6c84bde84032876488419b55484
SSDEEP 1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTHu37uJ4O+acReVk:ZRpAyazIliazT7Ea+e6
TLSH
T170939E0376D2C170E4B7067249B8CEA10A7FBE765EB28E573784258D4A751C04E39BB7
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