a91535bf8d59d2e3892aa57e3e9ca1b66c62b9c1e29b8b07eb14ffaf697e62c7

General

Target
2026-05-05_33063b716b1e36a619c2c43e8b6b4c2c_bkransomware_elex_maze_rhadamanthys.exe
Size 3.2MB
Sample260505-2ne68sf14t
SHA256 a91535bf8d59d2e3892aa57e3e9ca1b66c62b9c1e29b8b07eb14ffaf697e62c7
MD5 33063b716b1e36a619c2c43e8b6b4c2c
SHA1 7635ec4b3a978f23acefaf8be9fb56cc64698d6e
SHA512 e1f78cc6ddc3cc104180797d15eb1956c857167deaa0fa33fa782a38e158d893646d138384f51dbac6ee504a23d78dec12d96c8c9070d36ce05d24f65103e032
SSDEEP 98304:DS7wMgkgr67wMgNTV6UDpTtVkHEuZk+V3k0kjvqHN+yC:27RgmEMgNx6CRykmZ6Jjv6YF
TLSH
T18EF5334762C49531FC97103699E4ED9C430FBA78987C1AA2FAC92ACD54A82C3BD7D743
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

discovery persistence spyware stealer

Malware Config

Signatures

Custom signature

Detects executables packed with Dotfuscator 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000021698-3.dat	INDICATOR_EXE_Packed_Dotfuscator

Executes dropped EXE 4 IoCs

pid	Process
4752	W9gkrefQd3xZD50.exe
5960	CTS.exe
60	W9gkrefQd3xZD50.exe
1788	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"	2026-05-05_33063b716b1e36a619c2c43e8b6b4c2c_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	2026-05-05_33063b716b1e36a619c2c43e8b6b4c2c_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	W9gkrefQd3xZD50.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	W9gkrefQd3xZD50.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-05-05_33063b716b1e36a619c2c43e8b6b4c2c_bkransomware_elex_maze_rhadamanthys.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CTS.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	5828	2026-05-05_33063b716b1e36a619c2c43e8b6b4c2c_bkransomware_elex_maze_rhadamanthys.exe
Token: SeDebugPrivilege	5960	CTS.exe
Token: SeDebugPrivilege	1788	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5828 wrote to memory of 4752	5828	2026-05-05_33063b716b1e36a619c2c43e8b6b4c2c_bkransomware_elex_maze_rhadamanthys.exe	85
PID 5828 wrote to memory of 5960	5828	2026-05-05_33063b716b1e36a619c2c43e8b6b4c2c_bkransomware_elex_maze_rhadamanthys.exe	86
PID 4752 wrote to memory of 60	4752	W9gkrefQd3xZD50.exe	87

C:\Users\Admin\AppData\Local\Temp\2026-05-05_33063b716b1e36a619c2c43e8b6b4c2c_bkransomware_elex_maze_rhadamanthys.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-05_33063b716b1e36a619c2c43e8b6b4c2c_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:5828
- C:\Users\Admin\AppData\Local\Temp\W9gkrefQd3xZD50.exe
  C:\Users\Admin\AppData\Local\Temp\W9gkrefQd3xZD50.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4752
- - C:\Users\Admin\AppData\Local\Temp\W9gkrefQd3xZD50.exe
    C:\Users\Admin\AppData\Local\Temp\W9gkrefQd3xZD50.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,0x284,0x290,0xab82fc,0xab830c,0xab831c
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:60
- 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:5960

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:1788

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 9943845c94ae01fed457a3acc1a58492a0a333bcb96034e936a739b445b1edad
MD5 e279375fb38c772b641abbea752124f0
SHA1 32b49d47d971a8ec4bff56574abf00a8621d3987
SHA512 f239ad2c8d55f7add12236965164f00cae142e456b7b2d3937d57d027b694aa6c2af262c375e5eefd59b5a14c1161fdc62330439757436c189b6edfe01e6f04b
SSDEEP 1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTVQKS:ZRpAyazIliazTVQh
TLSH
T113736B03B6D2C170E4B70A7649A8CE51067FBE765FB18D5B33C4218E49752C09E3ABA7
MD5 SHA1 SHA512 SSDEEP TLSH

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W9gkrefQd3xZD50.exe

Path C:\Users\Admin\AppData\Local\Temp\W9gkrefQd3xZD50.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 d8c9a842e98b4b858ff20f86b240f0ee0ecd3df37cd5d1fb95f5b070659d0df2
MD5 7675be73e5a57789e4ba11a7c61b4183
SHA1 a0a4e93e3a91ce484f90306f64be85c846dacac4
SHA512 82d346cd99a175d5622b97838cdb3a5c80b17a1e6d58808739290e247aef099382f86a7f32798c95b390c88a61a9685a1276431c71d020c1e197fc30cd0a9f76
MD5 SHA1 SHA512

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memory/60-41-0x0000000000850000-0x0000000000856000-memory.dmp

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memory/4752-38-0x0000000001420000-0x0000000001426000-memory.dmp

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memory/4752-39-0x0000000004FB0000-0x0000000004FF7000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads