gh0strat | 692e3ee871b2bf106bde0999b05b87cdaa54f607399ab662a8cf311e66cc524e

General

Target

JaffaCakes118_389e2d7a5506cd415a52911097b0033b.exe
Size

192KB
MD5

389e2d7a5506cd415a52911097b0033b
SHA1

233e09b535f5bf306aca65091ddccb90626e36bf
SHA256

692e3ee871b2bf106bde0999b05b87cdaa54f607399ab662a8cf311e66cc524e
SHA512

67bb2c6daac576f426e635480c6ab93bd5af3c4d3b34ef9d44d73770d1ab8063e709300b93884a60351c3be365edd91a6e502105c318589678daa3944a2d12fb
SSDEEP

3072:h1il1aIwVZJb+bt5HClWme7s6guy0By1wZwSlbG7hC1sQvJuc:hsaIwVub7HCQry0BTZwWGdC1ssJu

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 4 IoCs

resource	yara_rule
behavioral1/files/0x00090000000161f6-5.dat	family_gh0strat
behavioral1/memory/792-7-0x0000000010000000-0x0000000010027000-memory.dmp	family_gh0strat
behavioral1/memory/2340-8-0x0000000000400000-0x0000000000431000-memory.dmp	family_gh0strat
behavioral1/memory/792-9-0x0000000010000000-0x0000000010027000-memory.dmp	family_gh0strat

Gh0strat
Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.
rat gh0strat
Gh0strat family
gh0strat

Server Software Component: Terminal Services DLL 1 TTPs 2 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\fastuserswitchingcompatibility\Parameters\ServiceDll = "C:\\PROGRA~2\\fxlib\\fxlib.dll"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\fastuserswitchingcompatibility\Parameters\ServiceDll = "C:\\PROGRA~2\\fxlib\\fxlib.dll"	JaffaCakes118_389e2d7a5506cd415a52911097b0033b.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\fastuserswitchingcompatibility\ImagePath = "%SystemRoot%\\System32\\svchost.exe -k netsvcs"	svchost.exe

Deletes itself 1 IoCs

pid	Process
792	svchost.exe

Loads dropped DLL 1 IoCs

pid	Process
792	svchost.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	svchost.exe

Drops file in System32 directory 13 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\ab5e7ac5.del	JaffaCakes118_389e2d7a5506cd415a52911097b0033b.exe
File opened for modification	C:\Windows\SysWOW64\b198415e.del	JaffaCakes118_389e2d7a5506cd415a52911097b0033b.exe
File opened for modification	C:\Windows\SysWOW64\81771310.del	JaffaCakes118_389e2d7a5506cd415a52911097b0033b.exe
File opened for modification	C:\Windows\SysWOW64\d2f5ca0e.del	JaffaCakes118_389e2d7a5506cd415a52911097b0033b.exe
File opened for modification	C:\Windows\SysWOW64\dad53dd.del	JaffaCakes118_389e2d7a5506cd415a52911097b0033b.exe
File opened for modification	C:\Windows\SysWOW64\4ef54a5d.del	JaffaCakes118_389e2d7a5506cd415a52911097b0033b.exe
File opened for modification	C:\Windows\SysWOW64\a8c20fb6.del	JaffaCakes118_389e2d7a5506cd415a52911097b0033b.exe
File opened for modification	C:\Windows\SysWOW64\bda338ff.del	JaffaCakes118_389e2d7a5506cd415a52911097b0033b.exe
File opened for modification	C:\Windows\SysWOW64\a4363793.del	JaffaCakes118_389e2d7a5506cd415a52911097b0033b.exe
File opened for modification	C:\Windows\SysWOW64\9b56e972.del	JaffaCakes118_389e2d7a5506cd415a52911097b0033b.exe
File opened for modification	C:\Windows\SysWOW64\35172304.del	JaffaCakes118_389e2d7a5506cd415a52911097b0033b.exe
File opened for modification	C:\Windows\SysWOW64\4ac26bd1.del	JaffaCakes118_389e2d7a5506cd415a52911097b0033b.exe
File opened for modification	C:\Windows\SysWOW64\729d73e9.del	JaffaCakes118_389e2d7a5506cd415a52911097b0033b.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~2\fxlib\fxlib.dll	JaffaCakes118_389e2d7a5506cd415a52911097b0033b.exe
File opened for modification	C:\PROGRA~2\fxlib\fxlib.dlll	JaffaCakes118_389e2d7a5506cd415a52911097b0033b.exe

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	JaffaCakes118_389e2d7a5506cd415a52911097b0033b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe

Modifies data under HKEY_USERS 6 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum	svchost.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum\Version = "7"	svchost.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
2340	JaffaCakes118_389e2d7a5506cd415a52911097b0033b.exe
792	svchost.exe
792	svchost.exe
792	svchost.exe
792	svchost.exe
792	svchost.exe
792	svchost.exe
792	svchost.exe
792	svchost.exe
792	svchost.exe
792	svchost.exe
792	svchost.exe
792	svchost.exe
792	svchost.exe
792	svchost.exe
792	svchost.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeBackupPrivilege	792	svchost.exe
Token: SeSecurityPrivilege	792	svchost.exe
Token: SeSecurityPrivilege	792	svchost.exe
Token: SeBackupPrivilege	792	svchost.exe
Token: SeSecurityPrivilege	792	svchost.exe
Token: SeBackupPrivilege	792	svchost.exe
Token: SeSecurityPrivilege	792	svchost.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_389e2d7a5506cd415a52911097b0033b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_389e2d7a5506cd415a52911097b0033b.exe"
1⤵
- Server Software Component: Terminal Services DLL
- Drops file in System32 directory
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2340

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs
1⤵
- Server Software Component: Terminal Services DLL
- Sets service image path in registry
- Deletes itself
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:792

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Server Software Component

1

T1505

Terminal Services DLL

1

T1505.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

\??\c:\progra~2\fxlib\fxlib.dll

Filesize
148KB

MD5
50d3b9564488621c7c8a5c92b6e83ab7

SHA1
25409235ac4a6a900db97bc536da8e2264b70b03

SHA256
fb0f61db6e2d101eb1cbc0f17dc3a624371e2b0a50e5b12dd4a3d7f3aea807e1

SHA512
0c2048d0afec48b9495a05a49b263fb0cb92634100f22e22499393a46b7e40e73ebaa071454cbbd0468be2a614eade3eb5e0e84d90167034c860c30b6927aa6c

Download Submit
memory/792-7-0x0000000010000000-0x0000000010027000-memory.dmp

Filesize
156KB

Download
memory/792-9-0x0000000010000000-0x0000000010027000-memory.dmp

Filesize
156KB

Download
memory/2340-0-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/2340-2-0x00000000002B0000-0x00000000002E1000-memory.dmp

Filesize
196KB

Download
memory/2340-1-0x00000000002B0000-0x00000000002E1000-memory.dmp

Filesize
196KB

Download
memory/2340-8-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads