gh0strat | 6a83c655e2af8ecb8e74c9553de0a2ec2328d8bb14fd124c7c16ac510c9e4145

General

Target

a54952b68913b7187994684d58ffc099_JaffaCakes118.exe
Size

96KB
MD5

a54952b68913b7187994684d58ffc099
SHA1

e3ac1efd9549e5165cbca9ab4d3144e6672fed5d
SHA256

6a83c655e2af8ecb8e74c9553de0a2ec2328d8bb14fd124c7c16ac510c9e4145
SHA512

ed6696f77b146166fee5c0171e818102a748be2746d7e51feb3203dbdcabcf70e2363f5973b9788f96e3e9917f672d5d2f532e39f7fdcc244c741f68f5cda4a3
SSDEEP

1536:+6FusSx9qYMhdFHS8qdydo3nTzhYxJA+CwNUtBZVY9v8prEk3MSMKe7:+gS4jHS8q/3nTzePCwNUh4E9EfDKe7

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/files/0x000700000001949e-20.dat	family_gh0strat
behavioral1/memory/940-22-0x0000000000400000-0x000000000044E31C-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
940	hvmqnjpved

Executes dropped EXE 1 IoCs

pid	Process
940	hvmqnjpved

Loads dropped DLL 3 IoCs

pid	Process
2116	a54952b68913b7187994684d58ffc099_JaffaCakes118.exe
2116	a54952b68913b7187994684d58ffc099_JaffaCakes118.exe
2804	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\ycpnqhpnet	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	a54952b68913b7187994684d58ffc099_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hvmqnjpved
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	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
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum	svchost.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
940	hvmqnjpved
2804	svchost.exe
2804	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	940	hvmqnjpved
Token: SeBackupPrivilege	940	hvmqnjpved
Token: SeBackupPrivilege	940	hvmqnjpved
Token: SeRestorePrivilege	940	hvmqnjpved
Token: SeBackupPrivilege	2804	svchost.exe
Token: SeRestorePrivilege	2804	svchost.exe
Token: SeBackupPrivilege	2804	svchost.exe
Token: SeBackupPrivilege	2804	svchost.exe
Token: SeSecurityPrivilege	2804	svchost.exe
Token: SeSecurityPrivilege	2804	svchost.exe
Token: SeBackupPrivilege	2804	svchost.exe
Token: SeBackupPrivilege	2804	svchost.exe
Token: SeSecurityPrivilege	2804	svchost.exe
Token: SeBackupPrivilege	2804	svchost.exe
Token: SeBackupPrivilege	2804	svchost.exe
Token: SeSecurityPrivilege	2804	svchost.exe
Token: SeBackupPrivilege	2804	svchost.exe
Token: SeRestorePrivilege	2804	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2116 wrote to memory of 940	2116	a54952b68913b7187994684d58ffc099_JaffaCakes118.exe	29
PID 2116 wrote to memory of 940	2116	a54952b68913b7187994684d58ffc099_JaffaCakes118.exe	29
PID 2116 wrote to memory of 940	2116	a54952b68913b7187994684d58ffc099_JaffaCakes118.exe	29
PID 2116 wrote to memory of 940	2116	a54952b68913b7187994684d58ffc099_JaffaCakes118.exe	29

C:\Users\Admin\AppData\Local\Temp\a54952b68913b7187994684d58ffc099_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a54952b68913b7187994684d58ffc099_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2116
- \??\c:\users\admin\appdata\local\hvmqnjpved
  "C:\Users\Admin\AppData\Local\Temp\a54952b68913b7187994684d58ffc099_JaffaCakes118.exe" a -sc:\users\admin\appdata\local\temp\a54952b68913b7187994684d58ffc099_jaffacakes118.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:940

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:2804

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

Replay Monitor

Loading Replay Monitor...

Downloads

\??\c:\programdata\application data\storm\update\%sessionname%\wgdmw.cc3

Filesize
19.1MB

MD5
5bd45b021bf75fb3a9c867ea072bfe0b

SHA1
4ef000c9716383d50cee2084daa384521f8af447

SHA256
86178742f85d747d7fe52cdefaa602a15dea1cde5324b7c2e8531f62c3f58e45

SHA512
5cf96782d197649a68267114246f65b7e0f6f42b997746d1153ae0eeedc6a47c213117097660a066ca1b376a5680c0b1c675cf9feb24f9ec6b03534287aa279e

Download Submit
\Users\Admin\AppData\Local\hvmqnjpved

Filesize
22.2MB

MD5
e4a4dd207405bb4e99a931b1d391255b

SHA1
a59068b37145862b582e6d226091c05f76349841

SHA256
c7b1fc7344924e069e6a998fdc17af482bb5528b8af3bfae053a829bdb36147b

SHA512
4735b02005b38d12eb99a118068be480e74c5fee353cfc238fcba6c41da9ecd667415095d7a0ef79e435d182fdf61fa28d31d03c99d735e66165cbe260a0c43b

Download Submit
memory/940-17-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/940-16-0x0000000000400000-0x000000000044E31C-memory.dmp

Filesize
312KB

Download
memory/940-22-0x0000000000400000-0x000000000044E31C-memory.dmp

Filesize
312KB

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

Filesize
4KB

Download
memory/2116-1-0x0000000000400000-0x000000000044E31C-memory.dmp

Filesize
312KB

Download
memory/2116-7-0x0000000000450000-0x000000000049F000-memory.dmp

Filesize
316KB

Download
memory/2116-13-0x0000000000400000-0x000000000044E31C-memory.dmp

Filesize
312KB

Download
memory/2804-23-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads