ed1ad9c3e5cc3ccd56899c168645a614161b306b48dd660f9dbe270cfdd503d2

General

Target
2026-10-26_a665fda9ffbebf7663d842d1f39d9632_bkransomware_elex_maze_rhadamanthys.exe
Size 3.2MB
Sample261027-l3cfwsb15w
SHA256 ed1ad9c3e5cc3ccd56899c168645a614161b306b48dd660f9dbe270cfdd503d2
MD5 a665fda9ffbebf7663d842d1f39d9632
SHA1 ca97db2384e8afca430868ebb313f34f1e60c9c2
SHA512 e5b2b1cdd0dbd1302854bee6c411b5a937969caf838c71179fe48c773ea1d87ffc7562130d173821ca77df51932d5019098879ba00531214b5dd4bca2b5be740
SSDEEP 98304:D6XXl/+qLivjyvkKQFrYhoP+jzgxnzKTyJYRC8J:mHGveuJYWWj2cRb
TLSH
T1FAF53303A855B038D4B68C7189946C921F77F03A7D625F9BE7F019A88835F811B2E9F7
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

Malware Config

Signatures

Detects executables packed with Dotfuscator 1 IoCs

resource	yara_rule
behavioral2/files/0x000b00000001b2cb-4.dat	INDICATOR_EXE_Packed_Dotfuscator

Executes dropped EXE 4 IoCs

pid	Process
4860	K8yi75UZU73PDbK.exe
4852	CTS.exe
4756	K8yi75UZU73PDbK.exe
5560	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"	2026-10-26_a665fda9ffbebf7663d842d1f39d9632_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

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

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	2026-10-26_a665fda9ffbebf7663d842d1f39d9632_bkransomware_elex_maze_rhadamanthys.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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	2026-10-26_a665fda9ffbebf7663d842d1f39d9632_bkransomware_elex_maze_rhadamanthys.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CTS.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	K8yi75UZU73PDbK.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	K8yi75UZU73PDbK.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4656	2026-10-26_a665fda9ffbebf7663d842d1f39d9632_bkransomware_elex_maze_rhadamanthys.exe
Token: SeDebugPrivilege	4852	CTS.exe
Token: SeDebugPrivilege	5560	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4656 wrote to memory of 4860	4656	2026-10-26_a665fda9ffbebf7663d842d1f39d9632_bkransomware_elex_maze_rhadamanthys.exe	89
PID 4656 wrote to memory of 4852	4656	2026-10-26_a665fda9ffbebf7663d842d1f39d9632_bkransomware_elex_maze_rhadamanthys.exe	90
PID 4860 wrote to memory of 4756	4860	K8yi75UZU73PDbK.exe	91

C:\Users\Admin\AppData\Local\Temp\2026-10-26_a665fda9ffbebf7663d842d1f39d9632_bkransomware_elex_maze_rhadamanthys.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-26_a665fda9ffbebf7663d842d1f39d9632_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:4656
- C:\Users\Admin\AppData\Local\Temp\K8yi75UZU73PDbK.exe
  C:\Users\Admin\AppData\Local\Temp\K8yi75UZU73PDbK.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4860
- - C:\Users\Admin\AppData\Local\Temp\K8yi75UZU73PDbK.exe
    C:\Users\Admin\AppData\Local\Temp\K8yi75UZU73PDbK.exe --crash-handler "--database=c:\users\admin\appdata\local\Google\Software Reporter Tool" --url=https://clients2.google.com/cr/report --annotation=plat=Win32 --annotation=prod=ChromeFoil --annotation=ver=18.102.0 --initial-client-data=0x2bc,0x2b4,0x2c0,0x2b8,0x2c4,0xa482fc,0xa4830c,0xa4831c
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4756
- 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:4852

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:5560

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

Query Registry

1

T1012

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 1.5MB
SHA256 ea175628cb7736be856e2c786b5ccc67096c914ac78dedcf9751385864392414
MD5 1a49e2b7364214866b988d6eb1978b26
SHA1 7ff41a5921dde3bffd99f59ae737962859a5c4fa
SHA512 2c72c6d774c5588022c699292bbe215e44257bf11a84458d1ebb6c0a85d325010bb7f89c357d2920e3aa72ec456218d470ff69707a603cd36a4c59ecced85633
SSDEEP 24576:DSMPx5LcUVhR0rz+u1SEM8NjedaAwSg0WIYcQyr4AFnGdNRc0aJ13ic2uGDQq:DSIcGxu1SEN4db9g1pPAGdNRc0a33icG
TLSH
T1076533536BE2C270D8E3453B08E495A21B6FBCB1887BC413BBD554DA68B57800E3AF57
MD5 SHA1 SHA512 SSDEEP TLSH

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K8yi75UZU73PDbK.exe

Path C:\Users\Admin\AppData\Local\Temp\K8yi75UZU73PDbK.exe
Size 3.1MB
SHA256 b9e001c5ef4845c2c0ce7a1ce134c774a7cd011af31dfbe2a13a96da2f68570e
MD5 a20245af2627cc9d55fbb3a1c682a334
SHA1 2ddbd81a16c18a7d5099f171473439bf84210a16
SHA512 f2a1d8e559dcd3016c3ad67c3c74e88ec62adc5a36ebf16df46f13d60627a9fc3b57dc9746f4551284d1c7eb79b364e76db7e539bfb8a9c20e1828f80bff9d1b
SSDEEP 24576:9yn2D7bFEc7r34rgxlqxjHHTVKIAF3XwVTTIUpWVH1kknPrMkkkskkkkkRkkkkkX:Ug7bV4UxExTTo6TkUEmT5xxvRCI5D
TLSH
T1DFE55C13BEC04032EAB70670B87BBB51557A7E209F1364CF7AC8362E1C716D1AA72756
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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settings.dat

Path \??\c:\users\admin\appdata\local\Google\Software Reporter Tool\settings.dat
Size 40B
SHA256 5c3c80d488aca7682f5cb5561410f6aebb3be93aa4ed730d4b10fd326a0261b9
MD5 0154df7039c6e41b3247f03e4a5214f2
SHA1 e7b581a5b9f495be8f05f6c5db0847c317a96b00
SHA512 a68563bf25f488c1eda5e570e9df1541d443d3fdde9d0327f3fe8a4822efa7ab14708c00d288841e0c27925ffaa0747fd24203d345beabed8600fa6a66c0ff88
MD5 SHA1 SHA512

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads