b4603e2aa9fc376fee2b86e32cbf92e72c69f2ef47dd8e8e8f2e03baab2027ca

General

Target
2026-07-22_29aef6f8b0b19693f7532d16639687fb_bkransomware_elex_maze_rhadamanthys.exe
Size 3.2MB
Sample260723-ajftesxeph
SHA256 b4603e2aa9fc376fee2b86e32cbf92e72c69f2ef47dd8e8e8f2e03baab2027ca
MD5 29aef6f8b0b19693f7532d16639687fb
SHA1 ea856c276b5df0ab4d7cc59716ff83739723f2aa
SHA512 24d3e3c13d0ebe746a621a7f945ab081f73abd7cd7bfadb552bdd332c2a758db7c39d783ea66506404e16b3beaf4f383e584f0186e3516e2b4c7870ce2f677cf
SSDEEP 98304:DJ6PCrO5IVwFrrwZTP6TfOhwFcJPCD6PyymFX1:V6qwM2TfFFc1CD6y5FF
TLSH
T1AFF53313B7A4CAD3D1F61EB141F08C938A7B3964ADB7D7E17351D4AD62290C1281AF2B
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

Malware Config

Signatures

Detects executables packed with Dotfuscator 1 IoCs

resource	yara_rule
behavioral1/files/0x00100000000231f3-3.dat	INDICATOR_EXE_Packed_Dotfuscator

Executes dropped EXE 4 IoCs

pid	Process
4832	ZdGROhEFNrEYHXq.exe
2408	CTS.exe
5272	ZdGROhEFNrEYHXq.exe
1712	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"	2026-07-22_29aef6f8b0b19693f7532d16639687fb_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	CTS.exe
File created	C:\Windows\CTS.exe	2026-07-22_29aef6f8b0b19693f7532d16639687fb_bkransomware_elex_maze_rhadamanthys.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	CTS.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ZdGROhEFNrEYHXq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ZdGROhEFNrEYHXq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-07-22_29aef6f8b0b19693f7532d16639687fb_bkransomware_elex_maze_rhadamanthys.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4800	2026-07-22_29aef6f8b0b19693f7532d16639687fb_bkransomware_elex_maze_rhadamanthys.exe
Token: SeDebugPrivilege	2408	CTS.exe
Token: SeDebugPrivilege	1712	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4800 wrote to memory of 4832	4800	2026-07-22_29aef6f8b0b19693f7532d16639687fb_bkransomware_elex_maze_rhadamanthys.exe	86
PID 4800 wrote to memory of 2408	4800	2026-07-22_29aef6f8b0b19693f7532d16639687fb_bkransomware_elex_maze_rhadamanthys.exe	87
PID 4832 wrote to memory of 5272	4832	ZdGROhEFNrEYHXq.exe	88

C:\Users\Admin\AppData\Local\Temp\2026-07-22_29aef6f8b0b19693f7532d16639687fb_bkransomware_elex_maze_rhadamanthys.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-22_29aef6f8b0b19693f7532d16639687fb_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:4800
- C:\Users\Admin\AppData\Local\Temp\ZdGROhEFNrEYHXq.exe
  C:\Users\Admin\AppData\Local\Temp\ZdGROhEFNrEYHXq.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4832
- - C:\Users\Admin\AppData\Local\Temp\ZdGROhEFNrEYHXq.exe
    C:\Users\Admin\AppData\Local\Temp\ZdGROhEFNrEYHXq.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,0x284,0x290,0xd882fc,0xd8830c,0xd8831c
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5272
- 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:2408

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:1712

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 0e151137f7ae3227bbfa0f1839825142d46b412395627899366e08fae6a15c2d
MD5 1ce1f3fa5a5fd34d04adb58a326cc516
SHA1 6865b1a9be2289e26ef8a99103ea5fbcec70d621
SHA512 9f6f6b403afbc2af3a9fcf5d74c7e7d2862685abb69588f0e9dd5e30bb0e12c1ad8f70be1ace0b4e807e8b006e0312f95d44a2e9c5794b20dbd1f7b6e546294d
SSDEEP 1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazT2Z5N:ZhpAyazIlyazT2ZH
TLSH
T13B736C03B6D2C171E4B70A7649B4CE510B6FBE765EB18E5B33C4218E09752C05E3ABA7
MD5 SHA1 SHA512 SSDEEP TLSH

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ZdGROhEFNrEYHXq.exe

Path C:\Users\Admin\AppData\Local\Temp\ZdGROhEFNrEYHXq.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 bd195f945d9bda6ce8c6f5784b524951996eac82385dd8cdd0f11203036a7c72
MD5 838ee1d44aa804c80745f22fcd12cada
SHA1 973f28af78ec8a8947e7c6dce10ebb94d580240a
SHA512 eca4558461d305b7e55e20ead7550f245fca3e510962c7e32ec14a02ab301f248ad7fa4bec8b3351ea73ab244273045e62613ac54e047ef9f965fea96925e772
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