gh0strat | 10865c6d3d893ab83787a859a740166f555c085524c2a64069f30aa633eb2d9e

General

Target

8605b02ce7da287ca5db5f6235925bc6_JaffaCakes118.exe
Size

173KB
MD5

8605b02ce7da287ca5db5f6235925bc6
SHA1

3c676c57c074e8a9aec4b0b159758fe6b1a08e02
SHA256

10865c6d3d893ab83787a859a740166f555c085524c2a64069f30aa633eb2d9e
SHA512

77576b4a5650434b70cfea51a00ded21dfbb3ce67616c974ebbbc9598971cc1d55571976e9794debd1fb87b1597ceae9253e2cc9c0f92bbcb4a37b2d919a8aff
SSDEEP

3072:ZhT2137DYmJoAbaZBJcFJu9Km563zXZeJeSG+bhN4HMO5Ur2v5skE:ZhRKicdqMzXZeJeS5bhN4Hdxs7

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral2/files/0x000500000001d9ff-24.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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	8605b02ce7da287ca5db5f6235925bc6_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
2944	AutumnLeaves.exe
2636	Default.exe

Loads dropped DLL 1 IoCs

pid	Process
2616	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\csrdcmokba	svchost.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~2\NETMEE~1\dodje.biz	Default.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	8605b02ce7da287ca5db5f6235925bc6_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AutumnLeaves.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Default.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 5 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
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum\Version = "7"	svchost.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2616	svchost.exe
2616	svchost.exe
2616	svchost.exe
2616	svchost.exe
2616	svchost.exe
2616	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeBackupPrivilege	2636	Default.exe
Token: SeRestorePrivilege	2636	Default.exe
Token: SeBackupPrivilege	2636	Default.exe
Token: SeRestorePrivilege	2636	Default.exe
Token: SeBackupPrivilege	2616	svchost.exe
Token: SeRestorePrivilege	2616	svchost.exe
Token: SeBackupPrivilege	2616	svchost.exe
Token: SeBackupPrivilege	2616	svchost.exe
Token: SeSecurityPrivilege	2616	svchost.exe
Token: SeSecurityPrivilege	2616	svchost.exe
Token: SeBackupPrivilege	2616	svchost.exe
Token: SeBackupPrivilege	2616	svchost.exe
Token: SeSecurityPrivilege	2616	svchost.exe
Token: SeBackupPrivilege	2616	svchost.exe
Token: SeBackupPrivilege	2616	svchost.exe
Token: SeSecurityPrivilege	2616	svchost.exe
Token: SeBackupPrivilege	2616	svchost.exe
Token: SeRestorePrivilege	2616	svchost.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2944	AutumnLeaves.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2944	AutumnLeaves.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 968 wrote to memory of 2944	968	8605b02ce7da287ca5db5f6235925bc6_JaffaCakes118.exe	85
PID 968 wrote to memory of 2944	968	8605b02ce7da287ca5db5f6235925bc6_JaffaCakes118.exe	85
PID 968 wrote to memory of 2944	968	8605b02ce7da287ca5db5f6235925bc6_JaffaCakes118.exe	85
PID 968 wrote to memory of 2636	968	8605b02ce7da287ca5db5f6235925bc6_JaffaCakes118.exe	86
PID 968 wrote to memory of 2636	968	8605b02ce7da287ca5db5f6235925bc6_JaffaCakes118.exe	86
PID 968 wrote to memory of 2636	968	8605b02ce7da287ca5db5f6235925bc6_JaffaCakes118.exe	86

C:\Users\Admin\AppData\Local\Temp\8605b02ce7da287ca5db5f6235925bc6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8605b02ce7da287ca5db5f6235925bc6_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:968
- C:\AutumnLeaves.exe
  "C:\AutumnLeaves.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:2944
- C:\Default.exe
  "C:\Default.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2636

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "netsvcs" -s fastuserswitchingcompatibility
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:2616

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

2

T1012

System Information Discovery

3

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:\AutumnLeaves.exe

Filesize
360KB

MD5
30a9d15f0984e401be72f7ee16796fed

SHA1
4a9bdb0ee927f4604e44174068b8138c01d3e263

SHA256
d872726044e530fd2db6d254882edb9104b1b36dcebf4714ce123d88b202cdbc

SHA512
74def068157e46e972104cef8fefa8b1dbe5f5e32c8fc65d7e31dc93c352e850354cbcd93e566d9f304df32e8ef47c555cf28e3f18ceab324a01ba595a490b64

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C:\Default.exe

Filesize
192KB

MD5
c4c43abca605a125999a3b11f2fe495e

SHA1
e67e400206ede27cca186e29a188367642a2f0d2

SHA256
4743a78fc1f778414cd2a1184b61f17a154609eee2c89d81196e3eb2aa0b6999

SHA512
d45146d5f8489b7bea9b58c7089bda0efb5ae4f37c752732c8cacd2b246bb498c038f9afee7e3e4291c9d007a4c0bb0f9b730685ec92d8f3e14a6908a796de6c

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\??\c:\progra~2\netmee~1\dodje.biz

Filesize
1.1MB

MD5
08aee7a9b259b6b4625a83da72039090

SHA1
199ffbb9191d564c1240511d349d7a221af7a2e1

SHA256
858934e232e59caa492a2c1c8c2cf38d0812a41daf0eb5d6f17fd9d7fd500e55

SHA512
712182746f3476ec7604b0e1732bbef23865b015aa18f2acf9a0349f023d86c7dfa87a8a298c5bf3c76610a96227fe429f567685aa5d33c66f71be05b5c3a682

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads