53e9e1f198061172293677414054587d2b1c1cbd12925f355a08caad888ccca1

General

Target
2026-05-06_72e83b721ec4f68c9834fa7f5ba5babb_bkransomware_elex_maze_rhadamanthys.exe
Size 3.2MB
Sample260506-t4exeaev8x
SHA256 53e9e1f198061172293677414054587d2b1c1cbd12925f355a08caad888ccca1
MD5 72e83b721ec4f68c9834fa7f5ba5babb
SHA1 3c5b0e47e0272d81c5834e28f8595afb2fc7bbc7
SHA512 b86c2f87e0694abc50cd9d9c6b7ed248ace18af1ba4b59ff3b715752b6851f4aeac0e429cc968143e501891bc94eedf94155dffda458003fac1b36a0f80cca3b
SSDEEP 98304:DQ157kKiMC5VGO814v1XUfL04wieTr+DWFsk/Z:k57lC/GF1gXU04wiarya7Z
TLSH
T1A1F5336B35C2D278F0A6493101247E15D6D71CB72A318C397398825AA9FC8F1DE6FA37
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

Malware Config

Signatures

Detects executables packed with Dotfuscator 1 IoCs

resource	yara_rule
behavioral2/files/0x002200000002ad3d-2.dat	INDICATOR_EXE_Packed_Dotfuscator

Executes dropped EXE 4 IoCs

pid	Process
3264	j8yNrCDrVl8y5Q8.exe
3812	CTS.exe
5600	j8yNrCDrVl8y5Q8.exe
5864	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"	CTS.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	2026-05-06_72e83b721ec4f68c9834fa7f5ba5babb_bkransomware_elex_maze_rhadamanthys.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_72e83b721ec4f68c9834fa7f5ba5babb_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	j8yNrCDrVl8y5Q8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-05-06_72e83b721ec4f68c9834fa7f5ba5babb_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	j8yNrCDrVl8y5Q8.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	5300	2026-05-06_72e83b721ec4f68c9834fa7f5ba5babb_bkransomware_elex_maze_rhadamanthys.exe
Token: SeDebugPrivilege	3812	CTS.exe
Token: SeDebugPrivilege	5864	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5300 wrote to memory of 3264	5300	2026-05-06_72e83b721ec4f68c9834fa7f5ba5babb_bkransomware_elex_maze_rhadamanthys.exe	79
PID 5300 wrote to memory of 3812	5300	2026-05-06_72e83b721ec4f68c9834fa7f5ba5babb_bkransomware_elex_maze_rhadamanthys.exe	80
PID 3264 wrote to memory of 5600	3264	j8yNrCDrVl8y5Q8.exe	81

C:\Users\Admin\AppData\Local\Temp\2026-05-06_72e83b721ec4f68c9834fa7f5ba5babb_bkransomware_elex_maze_rhadamanthys.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-06_72e83b721ec4f68c9834fa7f5ba5babb_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:5300
- C:\Users\Admin\AppData\Local\Temp\j8yNrCDrVl8y5Q8.exe
  C:\Users\Admin\AppData\Local\Temp\j8yNrCDrVl8y5Q8.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3264
- - C:\Users\Admin\AppData\Local\Temp\j8yNrCDrVl8y5Q8.exe
    C:\Users\Admin\AppData\Local\Temp\j8yNrCDrVl8y5Q8.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=0x27c,0x2a0,0x2a8,0x29c,0x2ac,0x4882fc,0x48830c,0x48831c
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5600
- 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:3812

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:5864

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 395KB
SHA256 6cbff323f51aed01e5880ed1ac1d9c1327ff574b841ad7b231e4e8f49d1bc47e
MD5 028357719054f954089a9941c01372c5
SHA1 e17c766c140ef8c066e986350b023d4ca1ae82cd
SHA512 8369069ab37ee8f0fc89ca523cd2430b4ac663bd6d21a5444a9ca68793d25d838feac0da62624cfb57ded904880dbe7d55c70a17fe50b63d129f6609ee691953
SSDEEP 6144:xZ8azxuoON9suO6FTe8v1SA29fmuoVwndzIY2j+t8V1LDBeVDb6lkJ1kzXJatMBs:xC0JONpFTFEoAOyc1Bepb6lfJatMa
TLSH
T1C5841217F5C6C270E0734A334A84DB550B3FBC655AB9CA1277D4158E0AA13C0AF2AB7B
MD5 SHA1 SHA512 SSDEEP TLSH

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j8yNrCDrVl8y5Q8.exe

Path C:\Users\Admin\AppData\Local\Temp\j8yNrCDrVl8y5Q8.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 b869d8553295cac61ddb131e26fc8f7b5334cd2f3f8c0d187990a57909192999
MD5 fcdd1e13b8d3ce407f4a18582e3c29dd
SHA1 1555494dceca045a18564a331039a0397964ddba
SHA512 9006510ad57ec8e421d353708f40f96b14b5a4bf07959cdc841ef925c718166f123d23be8ab4fc28641a593a01f1005d89498f0d69dd87b8a3cc89db88c47f56
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