gh0strat | 63f80672c1b11ab94891a49457431f24a877e9fda4e30c3b77cfa2e685002137

General

Target

JaffaCakes118_393e1cfc5f1d0248963abed70bb626ca.exe
Size

223KB
MD5

393e1cfc5f1d0248963abed70bb626ca
SHA1

50d3cf37fe3f6c84112a6a17f456b218b399e3d0
SHA256

63f80672c1b11ab94891a49457431f24a877e9fda4e30c3b77cfa2e685002137
SHA512

ff2de701f57d407bed5bbafde0ae06c442b3d7e743be33efd63d383cc57e68332376fb3510278b86a3490150a73ef1c5952f6317739871d8a3dc1f14fff8fbb5
SSDEEP

3072:v0d4QqqDCpMYi8v0uAf1nR7+Xqw7fEcK8LQohBBd1zfAdv+MZJT65ZUzA39YdmWU:M9qq+q8cFkLrSvlN65ZUzK9cBkZ

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000015d59-16.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

Drops file in Drivers directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\drivers\Beep.sys	JaffaCakes118_393e1cfc5f1d0248963abed70bb626ca.exe
File opened for modification	C:\Windows\SysWOW64\drivers\Beep.sys	JaffaCakes118_393e1cfc5f1d0248963abed70bb626ca.exe

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"	setup.exe

Executes dropped EXE 1 IoCs

pid	Process
2592	setup.exe

Loads dropped DLL 5 IoCs

pid	Process
2344	JaffaCakes118_393e1cfc5f1d0248963abed70bb626ca.exe
2592	setup.exe
2592	setup.exe
2592	setup.exe
2572	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	setup.exe
File opened for modification	C:\Windows\SysWOW64\d2f5ca0e.del	setup.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 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_393e1cfc5f1d0248963abed70bb626ca.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	setup.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
2592	setup.exe

Suspicious behavior: LoadsDriver 2 IoCs

pid	Process
476	Process not Found
476	Process not Found

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeBackupPrivilege	2572	svchost.exe
Token: SeSecurityPrivilege	2572	svchost.exe
Token: SeSecurityPrivilege	2572	svchost.exe
Token: SeBackupPrivilege	2572	svchost.exe
Token: SeSecurityPrivilege	2572	svchost.exe
Token: SeBackupPrivilege	2572	svchost.exe
Token: SeSecurityPrivilege	2572	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2344 wrote to memory of 2592	2344	JaffaCakes118_393e1cfc5f1d0248963abed70bb626ca.exe	30
PID 2344 wrote to memory of 2592	2344	JaffaCakes118_393e1cfc5f1d0248963abed70bb626ca.exe	30
PID 2344 wrote to memory of 2592	2344	JaffaCakes118_393e1cfc5f1d0248963abed70bb626ca.exe	30
PID 2344 wrote to memory of 2592	2344	JaffaCakes118_393e1cfc5f1d0248963abed70bb626ca.exe	30
PID 2344 wrote to memory of 2592	2344	JaffaCakes118_393e1cfc5f1d0248963abed70bb626ca.exe	30
PID 2344 wrote to memory of 2592	2344	JaffaCakes118_393e1cfc5f1d0248963abed70bb626ca.exe	30
PID 2344 wrote to memory of 2592	2344	JaffaCakes118_393e1cfc5f1d0248963abed70bb626ca.exe	30

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_393e1cfc5f1d0248963abed70bb626ca.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_393e1cfc5f1d0248963abed70bb626ca.exe"
1⤵
- Drops file in Drivers directory
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2344
- C:\Users\Admin\AppData\Local\Temp\setup.exe
  "C:\Users\Admin\AppData\Local\Temp\setup.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:2592

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:2572

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:\windows\SysWOW64\ntfastuserswitchingcompatibility.dll

Filesize
148KB

MD5
bd28f8ab43d1d7ea6fa1dd256686113c

SHA1
360b84ed04aa26bdea54f795f78da0a0ea7d5dae

SHA256
c7380a68d6a9370e5f4cb6110f72d9a282c3a70aa14e2767622e023911c88d3f

SHA512
f611fa698e90ef0d7610dfeaeb4cacbe056600add651a5a37eda6911df5ccef6fb05a17ac6c35d0d98dc0f3b5a5f2e5fda27ca9879b3b4b62538e369fc1851ae

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

Filesize
184KB

MD5
53fb8a1163fd6f841766f3000eee2ef7

SHA1
ce12543b52b995cde96c0b789b0fbee2b9aa3980

SHA256
ca23680cf08bd1c79ffdf3b47fdaa83dddc5aa9c2a581e80f0becea3d9c464e1

SHA512
0d62625a0826aeb6871c871e4fe91e5b4675297f62156bf2e589eb3483d50c2983f556160ba86bc6229c552336d88812dc21ea87e49d6dfb9939da9a208b00b2

Download Submit
memory/2344-8-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads