gh0strat | e74ceb74444a23b3768ed05114717fc14770e487882b1d38f8b145be63d56e10

General

Target

JaffaCakes118_50892c8f70c82473e272d526523699fd.exe
Size

113KB
MD5

50892c8f70c82473e272d526523699fd
SHA1

ac79d91863306c79dd33d7a47fbcde7818c50088
SHA256

e74ceb74444a23b3768ed05114717fc14770e487882b1d38f8b145be63d56e10
SHA512

2fd6c938771c0b1d4f13617c5a4096a45d36a54b0d25a092a9a1c3e26d629e757d782501b94941024fce3d6780e9cc64ae774f6e907dac708f1eb0e136c31ad8
SSDEEP

3072:ebYzLnmvvzLZmYFfO37SynB+SMRMvgbEdQnaEx:ebYfYZZxYSynNl54B

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral1/files/0x0006000000019490-19.dat	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\\ntfastuserswitchingcompatibility.dll"	opeE2D1.exe

Executes dropped EXE 1 IoCs

pid	Process
2864	opeE2D1.exe

Loads dropped DLL 5 IoCs

pid	Process
2596	JaffaCakes118_50892c8f70c82473e272d526523699fd.exe
2864	opeE2D1.exe
2864	opeE2D1.exe
2864	opeE2D1.exe
2588	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\ntfastuserswitchingcompatibility.dll	opeE2D1.exe
File opened for modification	C:\Windows\SysWOW64\d2f5ca0e.del	opeE2D1.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 4 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_50892c8f70c82473e272d526523699fd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DllHost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	opeE2D1.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 5 IoCs

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

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2864	opeE2D1.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeBackupPrivilege	2588	svchost.exe
Token: SeSecurityPrivilege	2588	svchost.exe
Token: SeSecurityPrivilege	2588	svchost.exe
Token: SeBackupPrivilege	2588	svchost.exe
Token: SeSecurityPrivilege	2588	svchost.exe
Token: SeBackupPrivilege	2588	svchost.exe
Token: SeSecurityPrivilege	2588	svchost.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2960	DllHost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2960	DllHost.exe
2960	DllHost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2596 wrote to memory of 2864	2596	JaffaCakes118_50892c8f70c82473e272d526523699fd.exe	31
PID 2596 wrote to memory of 2864	2596	JaffaCakes118_50892c8f70c82473e272d526523699fd.exe	31
PID 2596 wrote to memory of 2864	2596	JaffaCakes118_50892c8f70c82473e272d526523699fd.exe	31
PID 2596 wrote to memory of 2864	2596	JaffaCakes118_50892c8f70c82473e272d526523699fd.exe	31
PID 2596 wrote to memory of 2864	2596	JaffaCakes118_50892c8f70c82473e272d526523699fd.exe	31
PID 2596 wrote to memory of 2864	2596	JaffaCakes118_50892c8f70c82473e272d526523699fd.exe	31
PID 2596 wrote to memory of 2864	2596	JaffaCakes118_50892c8f70c82473e272d526523699fd.exe	31

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_50892c8f70c82473e272d526523699fd.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_50892c8f70c82473e272d526523699fd.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2596
- C:\Users\Admin\AppData\Local\Temp\opeE2D1.exe
  "C:\Users\Admin\AppData\Local\Temp\opeE2D1.exe"
  2⤵
  - Server Software Component: Terminal Services DLL
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2864

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:2960

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs
1⤵
- 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:2588

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

2

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:\Users\Admin\AppData\Local\Temp\opeDFA5.jpg

Filesize
23KB

MD5
a7341f8d22d4e1c602cd73ca0008458d

SHA1
cc30f998a5440917e8d7c8cd02654b3280931b47

SHA256
3feebe62c5746f5b5da1327a533955a7b75e0a6d4d8994b958b0e4d65ca16ae8

SHA512
342a718394455ee4a3702c9151e6531c14a756d5d89f6115ea1167e3e0bbaab358aa9a4d9bdf99bf8cc6c2bd428a8045ac69ffa6a0fa7e9986fe51ba55e10d40

Download Submit
\??\c:\windows\SysWOW64\ntfastuserswitchingcompatibility.dll

Filesize
148KB

MD5
add4e7c56af3886c1a510e0f3eee1618

SHA1
4b4f0c09d3f70d29f573065fc0c5fb45ba3d6599

SHA256
33f9a87c530916975295a2942ca547ae5cdb757562c49d4e7fb3001504255f0b

SHA512
79a77e07a37f757e7b661fb110dba36bea402802bf0abf148445289cd752aeb413705fd7f2136d4db3023407e2913ea8c9c0204506b991c95561f792802b1237

Download Submit
\Users\Admin\AppData\Local\Temp\opeE2D1.exe

Filesize
184KB

MD5
5ad77527bde52156f9044b200e359acf

SHA1
fd617e586b0c4136e291d81530d4353a2612fe33

SHA256
8b8a2efc4edbfed5ca6f94ecb941c0a087104d1ee6773b5486b866311101626c

SHA512
ecc84eeb7b8ed22db892a73d0d5fae6622028cee3b82d753a6982c2b843cb21822e06aa3a1c72523a5410a2e9bc5e467284e328dc51fa75fbe05c7aa49ba346b

Download Submit
memory/2596-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2596-2-0x0000000000570000-0x0000000000572000-memory.dmp

Filesize
8KB

Download
memory/2596-11-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2960-3-0x00000000001A0000-0x00000000001A2000-memory.dmp

Filesize
8KB

Download
memory/2960-6-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2960-21-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads