gh0strat | 0590d4c27dcf1904e251aeddca14bdf94fd57608c05e18ac2750fd01ea3cdc94

General

Target

8a332b01bd7526146cfdc497eb0355dc_JaffaCakes118.exe
Size

95KB
MD5

8a332b01bd7526146cfdc497eb0355dc
SHA1

ba88063f1ad0ebfafa228fb9482a60cd90427c91
SHA256

0590d4c27dcf1904e251aeddca14bdf94fd57608c05e18ac2750fd01ea3cdc94
SHA512

18723e317b350b204c1a43ee50d2247d486179e0e53b05bdb34323e87d63d349d2cd9321dc03d82a7088747bc9faf286b643e5e0c845bb05d91e6f87004beb0e
SSDEEP

1536:AKFusSx9qYMhdFHS8qdydo3nTzhYxJA+CwNUtBZVY9v8prQZLd+R2V4qt:AQS4jHS8q/3nTzePCwNUh4E9dqt

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 4 IoCs

resource	yara_rule
behavioral1/files/0x0009000000016d55-20.dat	family_gh0strat
behavioral1/memory/2528-23-0x0000000000400000-0x000000000044E2C8-memory.dmp	family_gh0strat
behavioral1/memory/2196-26-0x0000000020000000-0x0000000020027000-memory.dmp	family_gh0strat
behavioral1/memory/2196-28-0x0000000020000000-0x0000000020027000-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

Deletes itself 1 IoCs

pid	Process
2528	gtihbnjsmr

Executes dropped EXE 1 IoCs

pid	Process
2528	gtihbnjsmr

Loads dropped DLL 3 IoCs

pid	Process
2116	8a332b01bd7526146cfdc497eb0355dc_JaffaCakes118.exe
2116	8a332b01bd7526146cfdc497eb0355dc_JaffaCakes118.exe
2196	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\lugxnxcrie	svchost.exe

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	gtihbnjsmr
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8a332b01bd7526146cfdc497eb0355dc_JaffaCakes118.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 3 IoCs

pid	Process
2528	gtihbnjsmr
2196	svchost.exe
2196	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	2528	gtihbnjsmr
Token: SeBackupPrivilege	2528	gtihbnjsmr
Token: SeBackupPrivilege	2528	gtihbnjsmr
Token: SeRestorePrivilege	2528	gtihbnjsmr
Token: SeBackupPrivilege	2196	svchost.exe
Token: SeRestorePrivilege	2196	svchost.exe
Token: SeBackupPrivilege	2196	svchost.exe
Token: SeBackupPrivilege	2196	svchost.exe
Token: SeSecurityPrivilege	2196	svchost.exe
Token: SeSecurityPrivilege	2196	svchost.exe
Token: SeBackupPrivilege	2196	svchost.exe
Token: SeBackupPrivilege	2196	svchost.exe
Token: SeSecurityPrivilege	2196	svchost.exe
Token: SeBackupPrivilege	2196	svchost.exe
Token: SeBackupPrivilege	2196	svchost.exe
Token: SeSecurityPrivilege	2196	svchost.exe
Token: SeBackupPrivilege	2196	svchost.exe
Token: SeRestorePrivilege	2196	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2116 wrote to memory of 2528	2116	8a332b01bd7526146cfdc497eb0355dc_JaffaCakes118.exe	30
PID 2116 wrote to memory of 2528	2116	8a332b01bd7526146cfdc497eb0355dc_JaffaCakes118.exe	30
PID 2116 wrote to memory of 2528	2116	8a332b01bd7526146cfdc497eb0355dc_JaffaCakes118.exe	30
PID 2116 wrote to memory of 2528	2116	8a332b01bd7526146cfdc497eb0355dc_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\8a332b01bd7526146cfdc497eb0355dc_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8a332b01bd7526146cfdc497eb0355dc_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2116
- \??\c:\users\admin\appdata\local\gtihbnjsmr
  "C:\Users\Admin\AppData\Local\Temp\8a332b01bd7526146cfdc497eb0355dc_JaffaCakes118.exe" a -sc:\users\admin\appdata\local\temp\8a332b01bd7526146cfdc497eb0355dc_jaffacakes118.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2528

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:2196

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:\programdata\application data\storm\update\%sessionname%\dfqol.cc3

Filesize
23.1MB

MD5
db0d86a4af8246815848d913e731ceaf

SHA1
992955282ce715cc567d5a909ff05d3eb7681859

SHA256
b7bfd9fb07a6952e6af4c091f540d85768d36df2ece79d292c0fceaddd6841a7

SHA512
e5a57cb6f16fa407335416e1413251a0605a013a9dd9847e7d628eef54bf679ca63ecf5db67921011ef29bc4e0deb51c2b6492f9ae42ed7bde1a398c71172530

Download Submit
\Users\Admin\AppData\Local\gtihbnjsmr

Filesize
24.0MB

MD5
e462270aea00edefd503da1beec7d522

SHA1
2509668cbd4ed4a382b4676033e483130a2b3712

SHA256
73fca8f05d028b25235ade8dff906c0f91ddf2c29c2d6d71b0e00be414cb1e21

SHA512
247efd8f9e673eca271971f660295073a6a70322882d2baec42b21fc1552ff9d01edc68c66a204b0023c03b0af158bd3068d0b07bb8438412b93276262b9deec

Download Submit
memory/2116-2-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/2116-1-0x0000000000400000-0x000000000044E2C8-memory.dmp

Filesize
312KB

Download
memory/2116-7-0x00000000002E0000-0x000000000032F000-memory.dmp

Filesize
316KB

Download
memory/2116-13-0x0000000000400000-0x000000000044E2C8-memory.dmp

Filesize
312KB

Download
memory/2196-24-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/2196-26-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download
memory/2196-28-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download
memory/2528-15-0x0000000000400000-0x000000000044E2C8-memory.dmp

Filesize
312KB

Download
memory/2528-17-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/2528-23-0x0000000000400000-0x000000000044E2C8-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads