gh0strat | a24b4269996bde42ff6757d2308c3a5f513e372a580d28e1c2df39c241f1170d

General

Target

90dea7c6b1edc5515d7e638748ef407e_JaffaCakes118.exe
Size

95KB
MD5

90dea7c6b1edc5515d7e638748ef407e
SHA1

2b2b9ecc061b1cc6f7acb38ca2c301bcc7c4cbc6
SHA256

a24b4269996bde42ff6757d2308c3a5f513e372a580d28e1c2df39c241f1170d
SHA512

a792636c7b0286d960c7f7cbd4dff5f622b1f8cffbb1bfeab5b1c2017cb3721a5b4b24277fb891ab00ffb0665e2e5e2c3292ee122dab5f60533482954d763623
SSDEEP

1536:cxEEoFusSx9qYMhdFHS8qdydo3nTzhYxJA+CwNUtBZVY9v8prvORvMN7:ceE6S4jHS8q/3nTzePCwNUh4E9vAvMN7

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/files/0x000700000001945c-18.dat	family_gh0strat
behavioral1/memory/1688-21-0x0000000000400000-0x000000000044C612-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
1688	fdvgvbmnsx

Executes dropped EXE 1 IoCs

pid	Process
1688	fdvgvbmnsx

Loads dropped DLL 2 IoCs

pid	Process
2740	90dea7c6b1edc5515d7e638748ef407e_JaffaCakes118.exe
2800	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\qpwrpysaaw	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	90dea7c6b1edc5515d7e638748ef407e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fdvgvbmnsx
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\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 3 IoCs

pid	Process
1688	fdvgvbmnsx
2800	svchost.exe
2800	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	1688	fdvgvbmnsx
Token: SeBackupPrivilege	1688	fdvgvbmnsx
Token: SeBackupPrivilege	1688	fdvgvbmnsx
Token: SeRestorePrivilege	1688	fdvgvbmnsx
Token: SeBackupPrivilege	2800	svchost.exe
Token: SeRestorePrivilege	2800	svchost.exe
Token: SeBackupPrivilege	2800	svchost.exe
Token: SeBackupPrivilege	2800	svchost.exe
Token: SeSecurityPrivilege	2800	svchost.exe
Token: SeSecurityPrivilege	2800	svchost.exe
Token: SeBackupPrivilege	2800	svchost.exe
Token: SeBackupPrivilege	2800	svchost.exe
Token: SeSecurityPrivilege	2800	svchost.exe
Token: SeBackupPrivilege	2800	svchost.exe
Token: SeBackupPrivilege	2800	svchost.exe
Token: SeSecurityPrivilege	2800	svchost.exe
Token: SeBackupPrivilege	2800	svchost.exe
Token: SeRestorePrivilege	2800	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2740 wrote to memory of 1688	2740	90dea7c6b1edc5515d7e638748ef407e_JaffaCakes118.exe	30
PID 2740 wrote to memory of 1688	2740	90dea7c6b1edc5515d7e638748ef407e_JaffaCakes118.exe	30
PID 2740 wrote to memory of 1688	2740	90dea7c6b1edc5515d7e638748ef407e_JaffaCakes118.exe	30
PID 2740 wrote to memory of 1688	2740	90dea7c6b1edc5515d7e638748ef407e_JaffaCakes118.exe	30
PID 2740 wrote to memory of 1688	2740	90dea7c6b1edc5515d7e638748ef407e_JaffaCakes118.exe	30
PID 2740 wrote to memory of 1688	2740	90dea7c6b1edc5515d7e638748ef407e_JaffaCakes118.exe	30
PID 2740 wrote to memory of 1688	2740	90dea7c6b1edc5515d7e638748ef407e_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\90dea7c6b1edc5515d7e638748ef407e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\90dea7c6b1edc5515d7e638748ef407e_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2740
- \??\c:\users\admin\appdata\local\fdvgvbmnsx
  "C:\Users\Admin\AppData\Local\Temp\90dea7c6b1edc5515d7e638748ef407e_JaffaCakes118.exe" a -sc:\users\admin\appdata\local\temp\90dea7c6b1edc5515d7e638748ef407e_jaffacakes118.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1688

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:2800

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%\hlujx.cc3

Filesize
24.0MB

MD5
08def87982358ea5b05d8348670a9e89

SHA1
62bf7f6089046de663396dc7d7d29e3aa8936e0e

SHA256
efa65540c493d65c7614a6936d71474cea4723c226bb5a5e00a43efd06c0e03a

SHA512
2dfa3544f6e6fae1184387374c04959b8164b928b39d8c6b2900468a9d8a2bafae03872de6e1604817c07abc457b23d2ec5be8268e83a6f1576dfd580ac3052b

Download Submit
\Users\Admin\AppData\Local\fdvgvbmnsx

Filesize
21.0MB

MD5
508c5acb53e3739627dda81726240075

SHA1
704cff7c16d4b340eb1b2ee1dd48837811e8346c

SHA256
3a5735a3acf1c5bf83e516724993f8cef02d47cd9338b25f33c78f4a32c7ebe3

SHA512
17d62a74346325f4bc5b2b9f12dd167203042f792f4bf1cea9c899fe10513d6fafa672eaf21997075f0ba13bb1a1307743bd5db9a3ec042b8aa6b97e89cc6f72

Download Submit
memory/1688-13-0x0000000000400000-0x000000000044C612-memory.dmp

Filesize
305KB

Download
memory/1688-21-0x0000000000400000-0x000000000044C612-memory.dmp

Filesize
305KB

Download
memory/2740-0-0x0000000000400000-0x000000000044C612-memory.dmp

Filesize
305KB

Download
memory/2740-3-0x0000000000230000-0x000000000027D000-memory.dmp

Filesize
308KB

Download
memory/2740-2-0x0000000000230000-0x000000000027D000-memory.dmp

Filesize
308KB

Download
memory/2740-11-0x0000000000390000-0x00000000003DD000-memory.dmp

Filesize
308KB

Download
memory/2740-10-0x0000000000400000-0x000000000044C612-memory.dmp

Filesize
305KB

Download
memory/2740-23-0x0000000000390000-0x00000000003DD000-memory.dmp

Filesize
308KB

Download
memory/2800-22-0x0000000000180000-0x0000000000181000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads