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
behavioral2/files/0x000600000000697a-5.dat	INDICATOR_EXE_Packed_Dotfuscator

Executes dropped EXE 4 IoCs

pid	Process
3364	HtZJjYOlueaBO3m.exe
3428	CTS.exe
4236	HtZJjYOlueaBO3m.exe
3264	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	HtZJjYOlueaBO3m.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CTS.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HtZJjYOlueaBO3m.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3644	2026-07-31_c113d81311651050edecbfc746514229_bkransomware_elex_maze_rhadamanthys.exe
Token: SeDebugPrivilege	3428	CTS.exe
Token: SeDebugPrivilege	3264	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3644 wrote to memory of 3364	3644	2026-07-31_c113d81311651050edecbfc746514229_bkransomware_elex_maze_rhadamanthys.exe	89
PID 3644 wrote to memory of 3428	3644	2026-07-31_c113d81311651050edecbfc746514229_bkransomware_elex_maze_rhadamanthys.exe	90
PID 3364 wrote to memory of 4236	3364	HtZJjYOlueaBO3m.exe	91

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:3644
- C:\Users\Admin\AppData\Local\Temp\HtZJjYOlueaBO3m.exe
  C:\Users\Admin\AppData\Local\Temp\HtZJjYOlueaBO3m.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3364
- - C:\Users\Admin\AppData\Local\Temp\HtZJjYOlueaBO3m.exe
    C:\Users\Admin\AppData\Local\Temp\HtZJjYOlueaBO3m.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=0x2c4,0x2c0,0x2c8,0x2bc,0x2cc,0x10c82fc,0x10c830c,0x10c831c
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4236
- 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:3428

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:3264

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 cc51b27279074d4ebae4dcc58d20230eef5b4c3fe30ba37472e39f95eddc1c00
MD5 a1d8759d154aaa754e74c07a4399dc86
SHA1 d31f44296c6040b10cc7e2592be5e4942987bf47
SHA512 64c0c24fdac6afc2bd01b0896e737b126f4cb5b08ed9148d7d6ee5ec38bd163c22dc6b6e847d7caa11ad3bc0b57ee3cd31c0863ef0a338a3fa37077784dd1eae
SSDEEP 12288:hS0euNXiic49t+j0m68nfpSII+hNzodXn6Z4m2caeT1lA04EDg:D5vt9HwnfNI+hloJUMeBlf40g
TLSH
T1AEC4121B3BD14231E0774B3604A8CE860ABFBCA79AF54D0713D855CD08B9AC14E78B6B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

HtZJjYOlueaBO3m.exe

Path C:\Users\Admin\AppData\Local\Temp\HtZJjYOlueaBO3m.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 83506bfa4682970ebf4386fdc4c6ba3d926f119a8972d5582251188d6dfbde3a
MD5 a37a119976ff6cb28647b5708290dcf4
SHA1 6497b81cfb31f8c3ff2863f3f68b34534d9ef635
SHA512 5ec25fb442869853bdd13e8fb2e7b4540eabe35d11bf575d3ecfde36eb0fab5f373fbd05d2bc5afc6bde5dd2a114b6397c4bd974f75fe2deb7f0faade402a4d8
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