hawkeye | cafcac531e6347582823cb2e405f0c3e92162dfcd8f8ea761bcfbf0b0dc10286

Analysis

max time kernel
149s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20250313-en
resource tags

arch:x64arch:x86image:win11-20250313-enlocale:en-usos:windows11-21h2-x64system
submitted
27/03/2025, 01:33

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General

Target

remcos_a.exe
Size

431KB
MD5

ce511745116cb492d55c1ffaf9d1d655
SHA1

79de3a27eed9bcfd1012a1b306874e59ff636888
SHA256

cafcac531e6347582823cb2e405f0c3e92162dfcd8f8ea761bcfbf0b0dc10286
SHA512

358b44ef9b6419764f525048ffdd717a55ff22c2d4f18e1ed841c89b4978d371b9343a3d22ac3cd863cc53f9f2eefac4dd08df123ca5f6a2287f4d02c2ac7523
SSDEEP

6144:9IdUXq44bq4LrqMUz2y6cdjJ4nCb0KhEekcdK5xAO2XjXapGc3eou:9IdU6tdyDJZQKhEe7WAXWp8ou

Score

10^/10

hawkeye defense_evasion discovery keylogger spyware stealer trojan

Malware Config

Signatures

HawkEye
HawkEye is a malware kit that has seen continuous development since at least 2013.
keylogger trojan stealer spyware hawkeye
Hawkeye family
hawkeye

UAC bypass 3 TTPs 2 IoCs

defense_evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	remcos_a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "1"	remcos_a.exe

Drops file in System32 directory 8 IoCs

description	ioc	Process
File created	C:\Windows\System32\DriverStore\FileRepository\netrtl64.inf_amd64_8e9c2368fe308df2\netrtl64.PNF	dxdiag.exe
File created	C:\Windows\System32\DriverStore\FileRepository\usbport.inf_amd64_585900615f764770\usbport.PNF	dxdiag.exe
File created	C:\Windows\System32\DriverStore\FileRepository\input.inf_amd64_702fdf2336d2162d\input.PNF	dxdiag.exe
File created	C:\Windows\System32\DriverStore\FileRepository\msmouse.inf_amd64_5ab7d1c25144fcab\msmouse.PNF	dxdiag.exe
File created	C:\Windows\System32\DriverStore\FileRepository\hdaudbus.inf_amd64_8207ba80cf22e40a\hdaudbus.PNF	dxdiag.exe
File created	C:\Windows\System32\DriverStore\FileRepository\mshdc.inf_amd64_84ea762c0a90c362\mshdc.PNF	dxdiag.exe
File created	C:\Windows\System32\DriverStore\FileRepository\machine.inf_amd64_726cea1f0f349cf7\machine.PNF	dxdiag.exe
File created	C:\Windows\System32\DriverStore\FileRepository\keyboard.inf_amd64_cc6edbde0940344f\keyboard.PNF	dxdiag.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 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	remcos_a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dxdiag.exe

Checks SCSI registry key(s) 3 TTPs 6 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_QEMU&PROD_QEMU_DVD-ROM\4&215468A5&0&010000	dxdiag.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_QEMU&Prod_QEMU_DVD-ROM\4&215468a5&0&010000\HardwareID	dxdiag.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_QEMU&Prod_QEMU_DVD-ROM\4&215468a5&0&010000\CompatibleIDs	dxdiag.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_WDC&PROD_WDS100T2B0A\4&215468A5&0&000000	dxdiag.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\HardwareID	dxdiag.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\CompatibleIDs	dxdiag.exe

Modifies registry class 36 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DxDiag.DxDiagProvider\CLSID	dxdiag.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\DxDiag.DxDiagProvider\CurVer\ = "DxDiag.DxDiagClassObject.1"	dxdiag.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A65B8071-3BFE-4213-9A5B-491DA4461CA7}\ProgID	dxdiag.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DxDiag.DxDiagClassObject.1	dxdiag.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\DxDiag.DxDiagClassObject.1\ = "DxDiagClassObject Class"	dxdiag.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DxDiag.DxDiagClassObject	dxdiag.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EEB1CAE3-D0B2-446E-AEDE-727AA9089A1B}\InprocServer32\ThreadingModel = "Apartment"	dxdiag.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\DxDiag.DxDiagProvider\ = "DxDiagProvider Class"	dxdiag.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DxDiag.DxDiagProvider\CurVer	dxdiag.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EEB1CAE3-D0B2-446E-AEDE-727AA9089A1B}\VersionIndependentProgID\ = "DxDiag.DxDiagClassObject"	dxdiag.exe
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-1736937623-2710279395-1526620350-1000\{7DA25C96-2C99-4DF2-BEE9-137F1088957E}	dxdiag.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EEB1CAE3-D0B2-446E-AEDE-727AA9089A1B}\ProgID	dxdiag.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EEB1CAE3-D0B2-446E-AEDE-727AA9089A1B}\ProgID\ = "DxDiag.DxDiagClassObject.1"	dxdiag.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	dxdiag.exe
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-1736937623-2710279395-1526620350-1000\{6A0C9196-FAFE-4632-A68D-FEB749AF8C70}	dxdiag.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EEB1CAE3-D0B2-446E-AEDE-727AA9089A1B}	dxdiag.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EEB1CAE3-D0B2-446E-AEDE-727AA9089A1B}\ = "DxDiagClassObject Class"	dxdiag.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A65B8071-3BFE-4213-9A5B-491DA4461CA7}\VersionIndependentProgID	dxdiag.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DxDiag.DxDiagClassObject.1\CLSID	dxdiag.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DxDiag.DxDiagClassObject\CurVer	dxdiag.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A65B8071-3BFE-4213-9A5B-491DA4461CA7}	dxdiag.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DxDiag.DxDiagClassObject\CLSID	dxdiag.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\DxDiag.DxDiagClassObject\CurVer\ = "DxDiag.DxDiagClassObject.1"	dxdiag.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EEB1CAE3-D0B2-446E-AEDE-727AA9089A1B}\VersionIndependentProgID	dxdiag.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DxDiag.DxDiagProvider.1	dxdiag.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A65B8071-3BFE-4213-9A5B-491DA4461CA7}\InprocServer32	dxdiag.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\DxDiag.DxDiagClassObject\CLSID\ = "{EEB1CAE3-D0B2-446E-AEDE-727AA9089A1B}"	dxdiag.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EEB1CAE3-D0B2-446E-AEDE-727AA9089A1B}\InprocServer32	dxdiag.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EEB1CAE3-D0B2-446E-AEDE-727AA9089A1B}\InprocServer32\ = "C:\\Windows\\SysWOW64\\dxdiagn.dll"	dxdiag.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\DxDiag.DxDiagProvider.1\ = "DxDiagProvider Class"	dxdiag.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DxDiag.DxDiagProvider	dxdiag.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\DxDiag.DxDiagClassObject.1\CLSID\ = "{EEB1CAE3-D0B2-446E-AEDE-727AA9089A1B}"	dxdiag.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\DxDiag.DxDiagClassObject\ = "DxDiagClassObject Class"	dxdiag.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EEB1CAE3-D0B2-446E-AEDE-727AA9089A1B}\ForceRemove	dxdiag.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EEB1CAE3-D0B2-446E-AEDE-727AA9089A1B}\ForceRemove\ = "Programmable"	dxdiag.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DxDiag.DxDiagProvider.1\CLSID	dxdiag.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1576	dxdiag.exe
1576	dxdiag.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
5532	remcos_a.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
5532	remcos_a.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
5532	remcos_a.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1576	dxdiag.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5532 wrote to memory of 1576	5532	remcos_a.exe	83
PID 5532 wrote to memory of 1576	5532	remcos_a.exe	83
PID 5532 wrote to memory of 1576	5532	remcos_a.exe	83

System policy modification 1 TTPs 3 IoCs

defense_evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	remcos_a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	remcos_a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "1"	remcos_a.exe

C:\Users\Admin\AppData\Local\Temp\remcos_a.exe
"C:\Users\Admin\AppData\Local\Temp\remcos_a.exe"
1⤵
- UAC bypass
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
- System policy modification
PID:5532
- C:\Windows\SysWOW64\dxdiag.exe
  "C:\Windows\System32\dxdiag.exe" /t C:\Users\Admin\AppData\Local\Temp\sysinfo.txt
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Checks SCSI registry key(s)
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:1576

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\sysinfo.txt

Filesize
84KB

MD5
6ab78be0b058d8a019d983a25c92428c

SHA1
7768ceec9aeaede73429ea2b60ffd44522dc4186

SHA256
aac9b37d4760cea216bf018bd5ee4c28c0c784f09f58ebd948ed1c4ae1417827

SHA512
b80746ca77b475ae8e595f99b9d2c4c320ddb1f63b984a30b72cae5dc86cae509f43969b65709eb8543a470fd1eb3b725605cde0e8f3d0552a900a4305ab97cd

Download Submit
memory/1576-17-0x0000000000DC0000-0x0000000000DC1000-memory.dmp

Filesize
4KB

Download
memory/1576-14-0x0000000000DC0000-0x0000000000DC1000-memory.dmp

Filesize
4KB

Download
memory/1576-12-0x0000000000DC0000-0x0000000000DC1000-memory.dmp

Filesize
4KB

Download
memory/1576-6-0x0000000000DC0000-0x0000000000DC1000-memory.dmp

Filesize
4KB

Download
memory/1576-7-0x0000000000DC0000-0x0000000000DC1000-memory.dmp

Filesize
4KB

Download
memory/1576-8-0x0000000000DC0000-0x0000000000DC1000-memory.dmp

Filesize
4KB

Download
memory/1576-13-0x0000000000DC0000-0x0000000000DC1000-memory.dmp

Filesize
4KB

Download
memory/1576-16-0x0000000000DC0000-0x0000000000DC1000-memory.dmp

Filesize
4KB

Download
memory/1576-18-0x0000000000DC0000-0x0000000000DC1000-memory.dmp

Filesize
4KB

Download
memory/1576-15-0x0000000000DC0000-0x0000000000DC1000-memory.dmp

Filesize
4KB

Download
memory/5532-3-0x0000000010000000-0x0000000010006000-memory.dmp

Filesize
24KB

Download
memory/5532-5-0x0000000010000000-0x0000000010006000-memory.dmp

Filesize
24KB

Download
memory/5532-1-0x0000000010000000-0x0000000010006000-memory.dmp

Filesize
24KB

Download
memory/5532-4-0x0000000010000000-0x0000000010006000-memory.dmp

Filesize
24KB

Download
memory/5532-62-0x0000000004120000-0x0000000004345000-memory.dmp

Filesize
2.1MB

Download