ead867b5fa1527f5ae1d94a91a8177b2b1650ae12ed5b2ebe5ae36c387ec3272

Analysis

max time kernel
137s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
27-01-2024 10:36

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General

Target

2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Size

1.7MB
MD5

847247692fa71aab5166256c2c8a5e96
SHA1

410ad29bfaaf60f32a89f3ddd61d11a571f03208
SHA256

ead867b5fa1527f5ae1d94a91a8177b2b1650ae12ed5b2ebe5ae36c387ec3272
SHA512

db3e0c650697e2d139be1138d74d195563cc5ba604b0ddd9fddcb803f5f3694b96043049ac4156dbb7749dec532b883e0f68d30dc0e2632f77607de1ede8234c
SSDEEP

24576:X3oHrGhNF4Xx7AojzWDwCmTPPk/z5Zf5hz0dNUX:HoHgFEBArDwCmTPc/lZfuN4

Score

7^/10

persistence

Malware Config

Signatures

Registers COM server for autorun 1 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{C41B1461-3F8C-4666-B512-6DF24DE566D1}\LocalServer32\ = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe\""	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{C41B1461-3F8C-4666-B512-6DF24DE566D1}\LocalServer32	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\alg.exe	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe

Modifies registry class 52 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IntelCpHeciSvc.CphsSession\CLSID\ = "{C41B1461-3F8C-4666-B512-6DF24DE566D1}"	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{C41B1461-3F8C-4666-B512-6DF24DE566D1}\LocalServer32	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{C41B1461-3F8C-4666-B512-6DF24DE566D1}\LocalServer32\ = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe\""	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{66DBA565-0D3D-4D8A-9391-A2A4CF16DF40}	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A91E0BDD-79B0-42C5-A3A0-5BE434329577}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A91E0BDD-79B0-42C5-A3A0-5BE434329577}	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A91E0BDD-79B0-42C5-A3A0-5BE434329577}\ = "ICphsSession"	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{11AC3232-E7D7-49CD-ABFE-501700100B3A}\ = "IntelCpHeciSvc"	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IntelCpHeciSvc.CphsSession\ = "CphsSession Class"	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IntelCpHeciSvc.CphsSession\CurVer\ = "IntelCpHeciSvc.CphsSession.1"	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{C41B1461-3F8C-4666-B512-6DF24DE566D1}\ProgID\ = "IntelCpHeciSvc.CphsSession.1"	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{C41B1461-3F8C-4666-B512-6DF24DE566D1}\VersionIndependentProgID\ = "IntelCpHeciSvc.CphsSession"	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A91E0BDD-79B0-42C5-A3A0-5BE434329577}\ = "ICphsSession"	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A91E0BDD-79B0-42C5-A3A0-5BE434329577}\TypeLib	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IntelCpHeciSvc.CphsSession\CurVer	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{C41B1461-3F8C-4666-B512-6DF24DE566D1}	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A91E0BDD-79B0-42C5-A3A0-5BE434329577}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{C41B1461-3F8C-4666-B512-6DF24DE566D1}\Programmable	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A91E0BDD-79B0-42C5-A3A0-5BE434329577}\ProxyStubClsid32	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A91E0BDD-79B0-42C5-A3A0-5BE434329577}\TypeLib\Version = "1.0"	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IntelCpHeciSvc.CphsSession.1	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{C41B1461-3F8C-4666-B512-6DF24DE566D1}\ = "CphsSession Class"	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A91E0BDD-79B0-42C5-A3A0-5BE434329577}\TypeLib	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A91E0BDD-79B0-42C5-A3A0-5BE434329577}\TypeLib\ = "{66DBA565-0D3D-4D8A-9391-A2A4CF16DF40}"	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{C41B1461-3F8C-4666-B512-6DF24DE566D1}\ProgID	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A91E0BDD-79B0-42C5-A3A0-5BE434329577}\TypeLib\Version = "1.0"	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{66DBA565-0D3D-4D8A-9391-A2A4CF16DF40}\1.0\0\win64	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{11AC3232-E7D7-49CD-ABFE-501700100B3A}\LocalService = "cphs"	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IntelCpHeciSvc.CphsSession	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{66DBA565-0D3D-4D8A-9391-A2A4CF16DF40}\1.0\FLAGS	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{66DBA565-0D3D-4D8A-9391-A2A4CF16DF40}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp"	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A91E0BDD-79B0-42C5-A3A0-5BE434329577}\TypeLib\ = "{66DBA565-0D3D-4D8A-9391-A2A4CF16DF40}"	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{C41B1461-3F8C-4666-B512-6DF24DE566D1}\TypeLib	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{C41B1461-3F8C-4666-B512-6DF24DE566D1}\TypeLib\ = "{66DBA565-0D3D-4D8A-9391-A2A4CF16DF40}"	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{66DBA565-0D3D-4D8A-9391-A2A4CF16DF40}\1.0\0	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{C41B1461-3F8C-4666-B512-6DF24DE566D1}\AppID = "{11AC3232-E7D7-49CD-ABFE-501700100B3A}"	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{66DBA565-0D3D-4D8A-9391-A2A4CF16DF40}\1.0\ = "IntelCpHeciSvcLib"	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{66DBA565-0D3D-4D8A-9391-A2A4CF16DF40}\1.0\FLAGS\ = "0"	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{11AC3232-E7D7-49CD-ABFE-501700100B3A}	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IntelCpHeciSvc.CphsSession.1\ = "CphsSession Class"	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{C41B1461-3F8C-4666-B512-6DF24DE566D1}\VersionIndependentProgID	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{66DBA565-0D3D-4D8A-9391-A2A4CF16DF40}\1.0\0\win64\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe"	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A91E0BDD-79B0-42C5-A3A0-5BE434329577}\ProxyStubClsid32	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{11AC3232-E7D7-49CD-ABFE-501700100B3A}\LaunchPermission = 010014809c000000ac000000140000003000000002001c0001000000110014000400000001010000000000100010000002006c0003000000000014000b000000010100000000000100000000000018000b000000010200000000000f0200000001000000000038000b000000010a00000000000f0300000000040000ce4a9359b9cf0b7575c0f29bb2b4c298d446ddf9027a87ec14651177d6e996550102000000000005200000002002000001020000000000052000000020020000	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A91E0BDD-79B0-42C5-A3A0-5BE434329577}	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\IntelCpHeciSvc.EXE\AppID = "{11AC3232-E7D7-49CD-ABFE-501700100B3A}"	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IntelCpHeciSvc.CphsSession.1\CLSID	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IntelCpHeciSvc.CphsSession.1\CLSID\ = "{C41B1461-3F8C-4666-B512-6DF24DE566D1}"	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IntelCpHeciSvc.CphsSession\CLSID	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{66DBA565-0D3D-4D8A-9391-A2A4CF16DF40}\1.0	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{66DBA565-0D3D-4D8A-9391-A2A4CF16DF40}\1.0\HELPDIR	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\IntelCpHeciSvc.EXE	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeTakeOwnershipPrivilege	1976	2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe

C:\Users\Admin\AppData\Local\Temp\2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-27_847247692fa71aab5166256c2c8a5e96_ryuk.exe"
1⤵
- Registers COM server for autorun
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
PID:1976

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1976-0-0x00000000020E0000-0x0000000002140000-memory.dmp

Filesize
384KB

Download
memory/1976-1-0x0000000140000000-0x0000000140260000-memory.dmp

Filesize
2.4MB

Download
memory/1976-8-0x00000000020E0000-0x0000000002140000-memory.dmp

Filesize
384KB

Download
memory/1976-11-0x00000000020E0000-0x0000000002140000-memory.dmp

Filesize
384KB

Download
memory/1976-13-0x0000000140000000-0x0000000140260000-memory.dmp

Filesize
2.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads