gh0strat | 446f4906320e6d5206eb2b63495414748fb16699ed8f46de3d23dcaa699b9a37

General

Target

JaffaCakes118_4f02a9bd9cebb8c89787f16101677a59.exe
Size

196KB
MD5

4f02a9bd9cebb8c89787f16101677a59
SHA1

ab363f7df24852914acef3bb256fe727e2333316
SHA256

446f4906320e6d5206eb2b63495414748fb16699ed8f46de3d23dcaa699b9a37
SHA512

f4496bbee42633e064ec11f7467556aecec679eed1bb71caf5a8d8750930a93926bbd313c2a5ec378d4d0ac0f707efec7996dcb7d386269e2ab82b820aa91b2b
SSDEEP

6144:6sIt6nW8QvBTyPRqyhYPbHcTBlhHrandnkv0:39W8xJq8YPbHcT3V

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012257-2.dat	family_gh0strat
behavioral1/files/0x001000000001746f-9.dat	family_gh0strat
behavioral1/memory/2728-12-0x0000000020000000-0x0000000020027000-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

Deletes itself 1 IoCs

pid	Process
2824	hmtrygqqju

Executes dropped EXE 1 IoCs

pid	Process
2824	hmtrygqqju

Loads dropped DLL 2 IoCs

pid	Process
2848	JaffaCakes118_4f02a9bd9cebb8c89787f16101677a59.exe
2728	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 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\dqgpndkran	svchost.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\%SESSIONNAME%\roedc.cc3	hmtrygqqju

System Location Discovery: System Language Discovery 1 TTPs 3 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_4f02a9bd9cebb8c89787f16101677a59.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hmtrygqqju
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 4 IoCs

pid	Process
2824	hmtrygqqju
2728	svchost.exe
2728	svchost.exe
2728	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	2824	hmtrygqqju
Token: SeBackupPrivilege	2824	hmtrygqqju
Token: SeBackupPrivilege	2824	hmtrygqqju
Token: SeRestorePrivilege	2824	hmtrygqqju
Token: SeBackupPrivilege	2728	svchost.exe
Token: SeRestorePrivilege	2728	svchost.exe
Token: SeBackupPrivilege	2728	svchost.exe
Token: SeBackupPrivilege	2728	svchost.exe
Token: SeSecurityPrivilege	2728	svchost.exe
Token: SeSecurityPrivilege	2728	svchost.exe
Token: SeBackupPrivilege	2728	svchost.exe
Token: SeBackupPrivilege	2728	svchost.exe
Token: SeSecurityPrivilege	2728	svchost.exe
Token: SeBackupPrivilege	2728	svchost.exe
Token: SeBackupPrivilege	2728	svchost.exe
Token: SeSecurityPrivilege	2728	svchost.exe
Token: SeBackupPrivilege	2728	svchost.exe
Token: SeRestorePrivilege	2728	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2848 wrote to memory of 2824	2848	JaffaCakes118_4f02a9bd9cebb8c89787f16101677a59.exe	30
PID 2848 wrote to memory of 2824	2848	JaffaCakes118_4f02a9bd9cebb8c89787f16101677a59.exe	30
PID 2848 wrote to memory of 2824	2848	JaffaCakes118_4f02a9bd9cebb8c89787f16101677a59.exe	30
PID 2848 wrote to memory of 2824	2848	JaffaCakes118_4f02a9bd9cebb8c89787f16101677a59.exe	30
PID 2848 wrote to memory of 2824	2848	JaffaCakes118_4f02a9bd9cebb8c89787f16101677a59.exe	30
PID 2848 wrote to memory of 2824	2848	JaffaCakes118_4f02a9bd9cebb8c89787f16101677a59.exe	30
PID 2848 wrote to memory of 2824	2848	JaffaCakes118_4f02a9bd9cebb8c89787f16101677a59.exe	30

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4f02a9bd9cebb8c89787f16101677a59.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4f02a9bd9cebb8c89787f16101677a59.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2848
- \??\c:\users\admin\appdata\local\hmtrygqqju
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4f02a9bd9cebb8c89787f16101677a59.exe" a -sc:\users\admin\appdata\local\temp\jaffacakes118_4f02a9bd9cebb8c89787f16101677a59.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2824

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs
1⤵
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2728

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

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:\program files (x86)\%sessionname%\roedc.cc3

Filesize
19.1MB

MD5
6bde3953b2240d0e9f51b2422f5a3727

SHA1
235133738e9a12496bd592be6e29a54c95c8f9a0

SHA256
dc04b43fed275bbeabae303a4fb5f00d27b2ede55d864e27145b33163a092520

SHA512
1d12e4e5b2065130f242f0346c0549547674aec6d27552944a4a0bc57d90a69fe768292776ed60530414f97ca1bfa92ae7d1c7056c1220f912e07a1a5c6eb983

Download Submit
\Users\Admin\AppData\Local\hmtrygqqju

Filesize
22.8MB

MD5
b623396aab5a7e96db493470b937c8b1

SHA1
ec8f5a81de9785584a859b5df63805016654a131

SHA256
924d619f86039e95d13233fb8ebe25e37d6e1c52e264dc7bfa8b382e9db23c08

SHA512
14f1d6821b95d5837c9297b79a1f8462f072d77059b50e821ab119b085f418aa9a4ab30e8bc46063e36ab6634cbe05ec75bc8ee53ff0b17df7d5d032530bb221

Download Submit
memory/2728-11-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2728-12-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads