9842bab615c26a378b51a464bd2269f4cfab0190d8c4815c4c9d1227536c07c4

Analysis

max time kernel
94s
max time network
105s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02-10-2024 01:25

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

CyoHash.dll
Size

136KB
MD5

625a86db25c13acb01a2fc6e4ee3f1db
SHA1

581a1c0cab67e5e55fff78100b0189c107d44713
SHA256

4a28e3d8e01f7b93d8a32c75fd389999d2eca1f7153382e348d7cdb821fe834f
SHA512

963040ccf344774f7ca38b857df095f4312bebd57c148e87f4d2fbf832493a1bd6ffe40bb2951664d3200d156cd70b9394e3bb1fb0c77ff3b9b4f4b757fee147
SSDEEP

3072:YsWpnhoj0AausZ7pj39KN4dqM1tMpneEitAbWlePkDS:QoVo0tMHM0C9V

Score

3^/10

discovery

Malware Config

Signatures

System Location Discovery: System Language Discovery 1 TTPs 1 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	regsvr32.exe

Modifies registry class 53 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CyoHash.ShellExtension\CLSID\ = "{0026FF13-16AE-462B-8C7B-C07DA5CD386E}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0026FF13-16AE-462B-8C7B-C07DA5CD386E}\VersionIndependentProgID\ = "CyoHash.ShellExtension"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0026FF13-16AE-462B-8C7B-C07DA5CD386E}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CyoHash.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{16E0FFA4-6142-40A7-B385-820D66B71B16}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{16E0FFA4-6142-40A7-B385-820D66B71B16}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CyoHash.ShellExtension.1\ = "ShellExtension Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4FA818A6-6754-4214-9818-38C9648894CD}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CyoHash.ShellExtension.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0026FF13-16AE-462B-8C7B-C07DA5CD386E}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4FA818A6-6754-4214-9818-38C9648894CD}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{03AEAA5E-2F89-48FD-AAF2-15DBB0BF2B71}\ = "CyoHash"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{4FA818A6-6754-4214-9818-38C9648894CD}\TypeLib\ = "{16E0FFA4-6142-40A7-B385-820D66B71B16}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0026FF13-16AE-462B-8C7B-C07DA5CD386E}\ = "ShellExtension Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0026FF13-16AE-462B-8C7B-C07DA5CD386E}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0026FF13-16AE-462B-8C7B-C07DA5CD386E}\TypeLib\ = "{16E0FFA4-6142-40A7-B385-820D66B71B16}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\CyoHash.DLL\AppID = "{03AEAA5E-2F89-48FD-AAF2-15DBB0BF2B71}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CyoHash.ShellExtension.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\CyoHash	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{4FA818A6-6754-4214-9818-38C9648894CD}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{4FA818A6-6754-4214-9818-38C9648894CD}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CyoHash.ShellExtension.1\CLSID\ = "{0026FF13-16AE-462B-8C7B-C07DA5CD386E}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CyoHash.ShellExtension\CurVer\ = "CyoHash.ShellExtension.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0026FF13-16AE-462B-8C7B-C07DA5CD386E}\ProgID\ = "CyoHash.ShellExtension.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{16E0FFA4-6142-40A7-B385-820D66B71B16}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{4FA818A6-6754-4214-9818-38C9648894CD}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CyoHash.ShellExtension\ = "ShellExtension Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CyoHash.ShellExtension\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0026FF13-16AE-462B-8C7B-C07DA5CD386E}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0026FF13-16AE-462B-8C7B-C07DA5CD386E}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{16E0FFA4-6142-40A7-B385-820D66B71B16}\1.0\ = "CyoHash 1.0 Type Library"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4FA818A6-6754-4214-9818-38C9648894CD}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0026FF13-16AE-462B-8C7B-C07DA5CD386E}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4FA818A6-6754-4214-9818-38C9648894CD}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\CyoHash\ = "{0026FF13-16AE-462B-8C7B-C07DA5CD386E}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{16E0FFA4-6142-40A7-B385-820D66B71B16}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{16E0FFA4-6142-40A7-B385-820D66B71B16}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CyoHash.ShellExtension	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0026FF13-16AE-462B-8C7B-C07DA5CD386E}\AppID = "{03AEAA5E-2F89-48FD-AAF2-15DBB0BF2B71}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\CyoHash.DLL	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{16E0FFA4-6142-40A7-B385-820D66B71B16}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{4FA818A6-6754-4214-9818-38C9648894CD}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{4FA818A6-6754-4214-9818-38C9648894CD}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4FA818A6-6754-4214-9818-38C9648894CD}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CyoHash.ShellExtension\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0026FF13-16AE-462B-8C7B-C07DA5CD386E}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{16E0FFA4-6142-40A7-B385-820D66B71B16}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0026FF13-16AE-462B-8C7B-C07DA5CD386E}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4FA818A6-6754-4214-9818-38C9648894CD}\TypeLib\ = "{16E0FFA4-6142-40A7-B385-820D66B71B16}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{03AEAA5E-2F89-48FD-AAF2-15DBB0BF2B71}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{16E0FFA4-6142-40A7-B385-820D66B71B16}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{4FA818A6-6754-4214-9818-38C9648894CD}\ = "IShellExtension"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4FA818A6-6754-4214-9818-38C9648894CD}\ = "IShellExtension"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{16E0FFA4-6142-40A7-B385-820D66B71B16}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CyoHash.dll"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3852 wrote to memory of 4196	3852	regsvr32.exe	82
PID 3852 wrote to memory of 4196	3852	regsvr32.exe	82
PID 3852 wrote to memory of 4196	3852	regsvr32.exe	82

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\CyoHash.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3852
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\CyoHash.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:4196

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads