8f9bd31be44bc90c13746a87629cffd9a397072bfad3415401491afbbfdb0e31

General

Target
2026-08-01_419bdc43d4bcac425c42d8d3aee09b36_bkransomware_elex_maze_rhadamanthys.exe
Size 3.2MB
Sample260801-raryrs1sh1
SHA256 8f9bd31be44bc90c13746a87629cffd9a397072bfad3415401491afbbfdb0e31
MD5 419bdc43d4bcac425c42d8d3aee09b36
SHA1 8b6ae86e1408cd64b309a08aa520019bc229f237
SHA512 ed16df18efceb8efc138428515d787cdb9e5983a7e8e2ac2c716aa2527fd29c044395f3e9e49dc659ad17203ae9e539f1aa4824cbd575ba3e2b153bb4805a5fb
SSDEEP 49152:DBg3S90fItsSQGAJErHSltFbUwJ7F+UVAaKSvdNk6f9UgCcbR06os9uUrraTbw5h:DBD9C1SKgSltFb+UrXf9LbKy84CW
TLSH
T1ECF533532AF90437E035C1B94B7A4FAD067EB384EDE618276650A84D0533AC1DF3EA87
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

Malware Config

Signatures

Detects executables packed with Dotfuscator 1 IoCs

resource	yara_rule
behavioral2/files/0x000b00000001136a-4.dat	INDICATOR_EXE_Packed_Dotfuscator

Executes dropped EXE 4 IoCs

pid	Process
4952	fmXQEUdhWhVOjzK.exe
1964	CTS.exe
1564	fmXQEUdhWhVOjzK.exe
5484	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"	2026-08-01_419bdc43d4bcac425c42d8d3aee09b36_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	2026-08-01_419bdc43d4bcac425c42d8d3aee09b36_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	2026-08-01_419bdc43d4bcac425c42d8d3aee09b36_bkransomware_elex_maze_rhadamanthys.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fmXQEUdhWhVOjzK.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CTS.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fmXQEUdhWhVOjzK.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	996	2026-08-01_419bdc43d4bcac425c42d8d3aee09b36_bkransomware_elex_maze_rhadamanthys.exe
Token: SeDebugPrivilege	1964	CTS.exe
Token: SeDebugPrivilege	5484	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 996 wrote to memory of 4952	996	2026-08-01_419bdc43d4bcac425c42d8d3aee09b36_bkransomware_elex_maze_rhadamanthys.exe	89
PID 4952 wrote to memory of 1564	4952	fmXQEUdhWhVOjzK.exe	91
PID 996 wrote to memory of 1964	996	2026-08-01_419bdc43d4bcac425c42d8d3aee09b36_bkransomware_elex_maze_rhadamanthys.exe	90

C:\Users\Admin\AppData\Local\Temp\2026-08-01_419bdc43d4bcac425c42d8d3aee09b36_bkransomware_elex_maze_rhadamanthys.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-01_419bdc43d4bcac425c42d8d3aee09b36_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:996
- C:\Users\Admin\AppData\Local\Temp\fmXQEUdhWhVOjzK.exe
  C:\Users\Admin\AppData\Local\Temp\fmXQEUdhWhVOjzK.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4952
- - C:\Users\Admin\AppData\Local\Temp\fmXQEUdhWhVOjzK.exe
    C:\Users\Admin\AppData\Local\Temp\fmXQEUdhWhVOjzK.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=0x2c8,0x2c0,0x2cc,0x2c4,0x2d0,0xd582fc,0xd5830c,0xd5831c
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1564
- 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:1964

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:5484

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

officeclicktorun.exe_Rules.xml

Path C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\officeclicktorun.exe_Rules.xml
Size 557KB
SHA256 c76359acad16a8acffcab5f1efbd9fa5cff4d4e893eecb0806cc604864dedf52
MD5 8a1ebbda8a6feaf1a8c9ee4df26422da
SHA1 ab1eacb8483e9e641226a0d4f9b11f2cd54b27ae
SHA512 fb9dabd82a3b477b20978128a6733b94c5e29be6948a61184cdc41e568e1a9fbd0db1a8aab85261a8a120fc409bfff74624b60c36019cfb80314148002a87df6
SSDEEP 12288:hS0yCcKlVcZ8eCIzXFe3M7S2s0PIMcHCb66F:DyC9VcZfFXF3y0Ipibh
TLSH
T133C4220375E184B1F4AB4131597CCF510EBFBA355EB289E3A7A8225C993D1C08CB9B97
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

fmXQEUdhWhVOjzK.exe

Path C:\Users\Admin\AppData\Local\Temp\fmXQEUdhWhVOjzK.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 305c6d421d055fb27f7eb5e78a94a619001dbea6e1ea8604257e281111adb256
MD5 3bae9538f7b888a82a58b818be055ce0
SHA1 689d1f8735135c5dae979ae51c3a110fa69c6aba
SHA512 fe5787f270c0658d1a1346a1668685bea2c4272025b1ce17d16c671df60c2d8f038486590dd612f8ffc408dbc567fad31ab0ac214e06033c726264969649d78f
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