b9e9f63d52bd16667b3f26e05821ac7c9b18436a6dc0914d62eb3643c004bfd0

General

Target
2026-07-31_c113d81311651050edecbfc746514229_bkransomware_elex_maze_rhadamanthys.exe
Size 3.2MB
Sample260731-vc31lack21
SHA256 b9e9f63d52bd16667b3f26e05821ac7c9b18436a6dc0914d62eb3643c004bfd0
MD5 c113d81311651050edecbfc746514229
SHA1 5fc52796a23df0f5640eda0bf2efd581a2e7ce00
SHA512 9f4cfb54ccc68d04eb335821495523765121e25f296b32cee34f36a54dcdb34dfb979eedda6a5de0146875ff383fd94756e4c146186b864bd93b050cb2b052c0
SSDEEP 98304:DEFu5XCgXXb6v3F6LygNp++xyXa0aN0VX:6u5X/nb6vGya+UyXa0G0l
TLSH
T175F5332B3BD25030DB71AA7049989C19A37B7B77EA3659935385201C8F3BAD04FA7713
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

Malware Config

Signatures

Detects executables packed with Dotfuscator 1 IoCs

resource	yara_rule
behavioral1/files/0x0006000000009dd1-3.dat	INDICATOR_EXE_Packed_Dotfuscator

Executes dropped EXE 4 IoCs

pid	Process
3976	78EV0H8PnABVu9g.exe
4200	CTS.exe
2676	78EV0H8PnABVu9g.exe
4772	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"	2026-07-31_c113d81311651050edecbfc746514229_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	2026-07-31_c113d81311651050edecbfc746514229_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	2026-07-31_c113d81311651050edecbfc746514229_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	78EV0H8PnABVu9g.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	78EV0H8PnABVu9g.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1140	2026-07-31_c113d81311651050edecbfc746514229_bkransomware_elex_maze_rhadamanthys.exe
Token: SeDebugPrivilege	4200	CTS.exe
Token: SeDebugPrivilege	4772	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1140 wrote to memory of 3976	1140	2026-07-31_c113d81311651050edecbfc746514229_bkransomware_elex_maze_rhadamanthys.exe	85
PID 1140 wrote to memory of 4200	1140	2026-07-31_c113d81311651050edecbfc746514229_bkransomware_elex_maze_rhadamanthys.exe	86
PID 3976 wrote to memory of 2676	3976	78EV0H8PnABVu9g.exe	87

C:\Users\Admin\AppData\Local\Temp\2026-07-31_c113d81311651050edecbfc746514229_bkransomware_elex_maze_rhadamanthys.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-31_c113d81311651050edecbfc746514229_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:1140
- C:\Users\Admin\AppData\Local\Temp\78EV0H8PnABVu9g.exe
  C:\Users\Admin\AppData\Local\Temp\78EV0H8PnABVu9g.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3976
- - C:\Users\Admin\AppData\Local\Temp\78EV0H8PnABVu9g.exe
    C:\Users\Admin\AppData\Local\Temp\78EV0H8PnABVu9g.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=0x288,0x280,0x28c,0x284,0x290,0x7f82fc,0x7f830c,0x7f831c
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2676
- 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:4200

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:4772

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

powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Size 73KB
SHA256 e4f96fba132179ec611d050ea2aaeb3fb37dc595110ab263eb58b844c27fb090
MD5 c031cbe7646e1fa93cc00e6a76896131
SHA1 d6e25e86273afaa3351c5fd065b173409dfa05af
SHA512 0dea0f9ffcee960cfcb3ffbb3da266ca3ba4f599ad3b4e7bf00559447077cf942e1462b60c18b5c00e4ee85d26b8ce48e29f1cbd6de13db9f7d27a1d69e56af6
SSDEEP 1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazTp:ZhpAyazIlyazTp
TLSH
T1ED736C03B6D2C171E4B70A7249A8CE51067FBE765FB18D5B3384258D09752C08E3ABAB
MD5 SHA1 SHA512 SSDEEP TLSH

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78EV0H8PnABVu9g.exe

Path C:\Users\Admin\AppData\Local\Temp\78EV0H8PnABVu9g.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 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 894aa3687df18bc127bf3890791ff41af347831781ed4e4e93277763dc7cc9dd
MD5 5c2984c17eab5d19de8cd546741dcb23
SHA1 a59daeb70a17e9704c115832c81af5b3a0d70bf7
SHA512 c1a824c495d82f798eb88210de35a9ab660f4e6d64309e510ec3f93fa563fe9b3c99946a914e0045815e1fd4d740e857e8170cf3945a68c06c7643529bafc3c1
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