c54d56ceb7fb12ac8d2a74ab4a631df02557c70ff24a96b37d0af907eac67445

General

Target
2026-05-06_ddea86e3b8feaa10e95f21369995bd25_bkransomware_elex_maze_rhadamanthys.exe
Size 3.2MB
Sample260506-n9sgsshx3w
SHA256 c54d56ceb7fb12ac8d2a74ab4a631df02557c70ff24a96b37d0af907eac67445
MD5 ddea86e3b8feaa10e95f21369995bd25
SHA1 d37f46496694d6dde3864e66c6cab0b2651c0ab6
SHA512 22aaf24a6dabe234fa243b111b1f904c3395d7f43658f3ba5175db49e945e77b16ab0f5e89a37fad1b0623c59187b82fe3f6787f25037c72be6315a947f9e92b
SSDEEP 98304:Dz4H20znOfkEzkDlUElJm99x++tRc4Sh3/:4W2OsEzkDlxJ5Fv
TLSH
T15FF533E251E192BFC353A3BE0DE8DAA40F173D23A318E41576F4795E88223D0615BE5E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

Malware Config

Signatures

Detects executables packed with Dotfuscator 1 IoCs

resource	yara_rule
behavioral2/files/0x000c00000002ad28-3.dat	INDICATOR_EXE_Packed_Dotfuscator

Executes dropped EXE 4 IoCs

pid	Process
5860	UjxrslbQtBNhqYp.exe
1692	CTS.exe
2276	UjxrslbQtBNhqYp.exe
2184	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"	2026-05-06_ddea86e3b8feaa10e95f21369995bd25_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	2026-05-06_ddea86e3b8feaa10e95f21369995bd25_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 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	UjxrslbQtBNhqYp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-05-06_ddea86e3b8feaa10e95f21369995bd25_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	UjxrslbQtBNhqYp.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	5756	2026-05-06_ddea86e3b8feaa10e95f21369995bd25_bkransomware_elex_maze_rhadamanthys.exe
Token: SeDebugPrivilege	1692	CTS.exe
Token: SeDebugPrivilege	2184	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5756 wrote to memory of 5860	5756	2026-05-06_ddea86e3b8feaa10e95f21369995bd25_bkransomware_elex_maze_rhadamanthys.exe	79
PID 5756 wrote to memory of 1692	5756	2026-05-06_ddea86e3b8feaa10e95f21369995bd25_bkransomware_elex_maze_rhadamanthys.exe	80
PID 5860 wrote to memory of 2276	5860	UjxrslbQtBNhqYp.exe	81

C:\Users\Admin\AppData\Local\Temp\2026-05-06_ddea86e3b8feaa10e95f21369995bd25_bkransomware_elex_maze_rhadamanthys.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-06_ddea86e3b8feaa10e95f21369995bd25_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:5756
- C:\Users\Admin\AppData\Local\Temp\UjxrslbQtBNhqYp.exe
  C:\Users\Admin\AppData\Local\Temp\UjxrslbQtBNhqYp.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5860
- - C:\Users\Admin\AppData\Local\Temp\UjxrslbQtBNhqYp.exe
    C:\Users\Admin\AppData\Local\Temp\UjxrslbQtBNhqYp.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=0x2a8,0x2b0,0x2b4,0x29c,0x2b8,0x5682fc,0x56830c,0x56831c
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2276
- 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:1692

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:2184

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 393KB
SHA256 0e7b71a5bc155ca876112fe617e92c309e3af69b66e0e185ff4b920d4a7eb3f6
MD5 b1036ea155175d17e7f68b841384743e
SHA1 bbd2ef3ff09ee16d72762f47a8c82f2267d859bd
SHA512 65b55af91725b200db4be0bdc214c4e5bc8b4bb4d360e55755274fda588e0e24f46c87a5d102dcb563593efa3842f22c393e9a34d9e340c5778b3d7066b0e8ac
SSDEEP 6144:xZ8azqRjqEr7y0KMKRfLkPcwGLO4BGaR12u/01dB6oIXAj61WDq2:xC0qx798LkkwG/gaWVF6oIXAFDq2
TLSH
T1DD84010377C6C031D0F7067A0894DE614A6FBA760DB08C6667C4B99E99B62C14F39B7B
MD5 SHA1 SHA512 SSDEEP TLSH

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UjxrslbQtBNhqYp.exe

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

Path \??\c:\users\admin\appdata\local\Google\Software Reporter Tool\settings.dat
Size 40B
SHA256 f67841dfce1b390317c8ffd52360e3f90fb9b03df55883781816b7d6f5afd25a
MD5 e59dfb51677d99860c943576d7e79586
SHA1 e6726a86cf3d5337e2d347d6048b96a45a2e454a
SHA512 bb08ac2ec1049f88044d5fb5d64fa3905e03d16877f5c0856b76a6559cf37eaadbe4f2a1249ad3678b1e4714b3c9871f95b8b7af5eb4be7e766090afa92058ab
MD5 SHA1 SHA512

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memory/5860-33-0x0000000002A00000-0x0000000002A82000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads