gh0strat | 78f366c9f11831d3196c2ffc6f4cabeaf0513febbf2939cb7abe1b15dee099af

General

Target

JaffaCakes118_5bdd5ea7d525eb6b731c34625b9377e5.exe
Size

192KB
MD5

5bdd5ea7d525eb6b731c34625b9377e5
SHA1

9b40a44721a847e5b7350e78435c772015e2a482
SHA256

78f366c9f11831d3196c2ffc6f4cabeaf0513febbf2939cb7abe1b15dee099af
SHA512

6695d4cbf48bc30f18521e7202c4c8f9b6ea0ff2338a957c5a77179edd748a9ee271090c74032d425cfbae498a01df41cc3dbdcd582c4e6a662a32e90ccfc401
SSDEEP

3072:5tRJKo3aQUVsJRU8mnzGqAxoVuquiitrk3WGBJae+EhMDjimsY3YRdLiE:93aQUVxLjhuiOorBJae1MDWmsY3k9F

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 4 IoCs

resource	yara_rule
behavioral1/files/0x0007000000012116-5.dat	family_gh0strat
behavioral1/memory/1664-7-0x0000000010000000-0x0000000010028000-memory.dmp	family_gh0strat
behavioral1/memory/1628-8-0x0000000000400000-0x0000000000431000-memory.dmp	family_gh0strat
behavioral1/memory/1664-9-0x0000000010000000-0x0000000010028000-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 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\fastuserswitchingcompatibility\Parameters\ServiceDll = "C:\\Windows\\system32\\unfqt.ref"	JaffaCakes118_5bdd5ea7d525eb6b731c34625b9377e5.exe

Deletes itself 1 IoCs

pid	Process
1664	svchost.exe

Loads dropped DLL 1 IoCs

pid	Process
1664	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 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\unfqt.ref	JaffaCakes118_5bdd5ea7d525eb6b731c34625b9377e5.exe
File opened for modification	C:\Windows\SysWOW64\d2f5ca0e.del	JaffaCakes118_5bdd5ea7d525eb6b731c34625b9377e5.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_5bdd5ea7d525eb6b731c34625b9377e5.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	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 1 IoCs

pid	Process
1628	JaffaCakes118_5bdd5ea7d525eb6b731c34625b9377e5.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeBackupPrivilege	1664	svchost.exe
Token: SeSecurityPrivilege	1664	svchost.exe
Token: SeSecurityPrivilege	1664	svchost.exe
Token: SeBackupPrivilege	1664	svchost.exe
Token: SeSecurityPrivilege	1664	svchost.exe
Token: SeBackupPrivilege	1664	svchost.exe
Token: SeSecurityPrivilege	1664	svchost.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5bdd5ea7d525eb6b731c34625b9377e5.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5bdd5ea7d525eb6b731c34625b9377e5.exe"
1⤵
- Server Software Component: Terminal Services DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:1628

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs
1⤵
- 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 use of AdjustPrivilegeToken
PID:1664

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Server Software Component

1

T1505

Terminal Services DLL

1

T1505.005

Privilege Escalation

Defense Evasion

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

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Downloads

\??\c:\windows\SysWOW64\unfqt.ref

Filesize
152KB

MD5
96f1faa05d3b17e1a8dc9d5e7c64bd23

SHA1
4f003c6ed873e4c1c65c7e8bbb8c5990a81e2906

SHA256
c868ebe60f649d2cb1688eb981465bc92468b3e9abdf185663d9da9525a8692d

SHA512
e64fd85a347e96ce6fc00ec1173bb2153b37935728d5ccd88dd960db64d7d087009da8816ce71d9fd623ea5e9b1d506659bf5d7064b76cb4ceb41ba524e8c338

Download Submit
memory/1628-0-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/1628-2-0x0000000000230000-0x0000000000261000-memory.dmp

Filesize
196KB

Download
memory/1628-1-0x0000000000230000-0x0000000000261000-memory.dmp

Filesize
196KB

Download
memory/1628-8-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/1664-7-0x0000000010000000-0x0000000010028000-memory.dmp

Filesize
160KB

Download
memory/1664-9-0x0000000010000000-0x0000000010028000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads