8f091a748f1bca2804f1310535fc29ef52c97a919cf8965090cdfbc66359426f

General

Target
2026-07-15_552c3054d522a08d86052c9430eec080_bkransomware_elex_maze_rhadamanthys.exe
Size 3.2MB
Sample260715-dck2cac18z
SHA256 8f091a748f1bca2804f1310535fc29ef52c97a919cf8965090cdfbc66359426f
MD5 552c3054d522a08d86052c9430eec080
SHA1 58ad089d2f3a6de871c004d5d714bc4d3ac4c7bc
SHA512 21623ee9625681657e0073b6d4cb7336d8ac63a415989c60eefecfec27dd7375703abce0c5382b5c9ecf31c6d4e6653379f98e38b6b7364b3907c6b5e89f9099
SSDEEP 98304:q4jqHRzCzWxMXlW2sKl9GsXcuftCbIUxJOe2uuS1/jo:bqgSWlW2XcfsQ2hS1/8
TLSH
T1E4F53352F4C4D132F4BE47FA86A84E101A2F79AD1563DA8F53DCB64A19710C08E6EB37
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

Malware Config

Signatures

Detects executables packed with Dotfuscator 1 IoCs

resource	yara_rule
behavioral2/files/0x000a00000000083c-3.dat	INDICATOR_EXE_Packed_Dotfuscator

Executes dropped EXE 4 IoCs

pid	Process
4884	oy8x7OTELnxIihY.exe
4308	CTS.exe
5788	oy8x7OTELnxIihY.exe
4840	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"	2026-07-15_552c3054d522a08d86052c9430eec080_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	2026-07-15_552c3054d522a08d86052c9430eec080_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	2026-07-15_552c3054d522a08d86052c9430eec080_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	oy8x7OTELnxIihY.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	oy8x7OTELnxIihY.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3180	2026-07-15_552c3054d522a08d86052c9430eec080_bkransomware_elex_maze_rhadamanthys.exe
Token: SeDebugPrivilege	4308	CTS.exe
Token: SeDebugPrivilege	4840	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3180 wrote to memory of 4884	3180	2026-07-15_552c3054d522a08d86052c9430eec080_bkransomware_elex_maze_rhadamanthys.exe	87
PID 3180 wrote to memory of 4308	3180	2026-07-15_552c3054d522a08d86052c9430eec080_bkransomware_elex_maze_rhadamanthys.exe	88
PID 4884 wrote to memory of 5788	4884	oy8x7OTELnxIihY.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-07-15_552c3054d522a08d86052c9430eec080_bkransomware_elex_maze_rhadamanthys.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-15_552c3054d522a08d86052c9430eec080_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:3180
- C:\Users\Admin\AppData\Local\Temp\oy8x7OTELnxIihY.exe
  C:\Users\Admin\AppData\Local\Temp\oy8x7OTELnxIihY.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4884
- - C:\Users\Admin\AppData\Local\Temp\oy8x7OTELnxIihY.exe
    C:\Users\Admin\AppData\Local\Temp\oy8x7OTELnxIihY.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,0x9682fc,0x96830c,0x96831c
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5788
- 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:4308

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:4840

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 5f4e4312e8a3801def9db3634acd890ccc408c8bbfac4571261297e1db1be219
MD5 0c6bf625860c58fe0fcfcc8404b24e07
SHA1 c130516a20efcef59eb45f270ccc4814d10e7235
SHA512 944ad964045d2f257eaa4fcaf972984b820a6edf8bef70853c8999cf16ae6b2f6423df2292e1e602c797561994dbb8386ea7a5ceaa3725610be97c1b30da0651
SSDEEP 12288:cS0MWN3F0DSntTMCHaHMlZfhBu/ROTtJYLsUQ+/02o1:qlN3GDDJukcCAU271
TLSH
T184C413233ADACA72E4B34672113C9E554A6EFEB26AB78E46738111CC44356C04F397B7
MD5 SHA1 SHA512 SSDEEP TLSH

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oy8x7OTELnxIihY.exe

Path C:\Users\Admin\AppData\Local\Temp\oy8x7OTELnxIihY.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 7a1c6cd3173222859a0d776c4949134e09b12c30ce4260e2d689e43202b1ca4b
MD5 ea7997ed926da609b4008fbee72e07e6
SHA1 c2e75d2d8e1619cdea76bb3dac6cd8bf2f7842b6
SHA512 07ee1b1eb94ff6a6e73daf4b6794b253c7517da655a71782ca5d71c93df8694ce0e4a6f987db1b7af34821b68e20f85c4e19e0981bef89fb3d00bc6ae610d2a3
SSDEEP 1536:Sc8N7UsWjcd9w+AyabjDbxE+MwmvlDuazT:MRpAyazIlyazT
TLSH
T1D1636B03B6D2C171E4B70A7649B8CE51077FBE765EB18D5B3384218D4A752C08E3ABA7
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 128de35f1f0e2e959dee52db3465b93629335e83789a275948b5245893fa1d65
MD5 a2b2d014908271e3a5c5d246bcf4a91b
SHA1 53c61a60ba3755b208d4a7961ffddf8ada7ecf72
SHA512 8bccd2326c860b3c459feb56c220242b45c499a6523cb0bd3edd5739372a8d2ce4947a67d63c9536416e341c2a137254fc05de17aee4d0f3640ebadb9df53ffc
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