gh0strat | b463c88770cbfd2b12ef0482665eecb321d7e9899f6ee154e88284e6a04fdbf6

General

Target

693ec98d146821a92d447217f548f400_JaffaCakes118.exe
Size

95KB
MD5

693ec98d146821a92d447217f548f400
SHA1

895b18e0ffa36d43ec83641cd8559c29aa51f25d
SHA256

b463c88770cbfd2b12ef0482665eecb321d7e9899f6ee154e88284e6a04fdbf6
SHA512

4b66b3420c56dbc725ebb52c6cd8ddf4fdfc408fa1cb064e2d28bf0b7b6385729a389504351844e02fbe6f0a152747e199bf2f58402aeccc7afeff127ebb1be0
SSDEEP

1536:3HFusSx9qYMhdFHS8qdydo3nTzhYxJA+CwNUtBZVY9v8prd/0BwQ8f6:3xS4jHS8q/3nTzePCwNUh4E9d/6wQ66

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/files/0x0009000000016d71-19.dat	family_gh0strat
behavioral1/memory/2744-21-0x0000000000400000-0x000000000044E344-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
2744	gjjeymjwhe

Executes dropped EXE 1 IoCs

pid	Process
2744	gjjeymjwhe

Loads dropped DLL 3 IoCs

pid	Process
2244	693ec98d146821a92d447217f548f400_JaffaCakes118.exe
2244	693ec98d146821a92d447217f548f400_JaffaCakes118.exe
2984	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\valdlkehef	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	693ec98d146821a92d447217f548f400_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gjjeymjwhe
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\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
Key created	\REGISTRY\USER\.DEFAULT\Software	svchost.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2744	gjjeymjwhe
2984	svchost.exe
2984	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	2744	gjjeymjwhe
Token: SeBackupPrivilege	2744	gjjeymjwhe
Token: SeBackupPrivilege	2744	gjjeymjwhe
Token: SeRestorePrivilege	2744	gjjeymjwhe
Token: SeBackupPrivilege	2984	svchost.exe
Token: SeRestorePrivilege	2984	svchost.exe
Token: SeBackupPrivilege	2984	svchost.exe
Token: SeBackupPrivilege	2984	svchost.exe
Token: SeSecurityPrivilege	2984	svchost.exe
Token: SeSecurityPrivilege	2984	svchost.exe
Token: SeBackupPrivilege	2984	svchost.exe
Token: SeBackupPrivilege	2984	svchost.exe
Token: SeSecurityPrivilege	2984	svchost.exe
Token: SeBackupPrivilege	2984	svchost.exe
Token: SeBackupPrivilege	2984	svchost.exe
Token: SeSecurityPrivilege	2984	svchost.exe
Token: SeBackupPrivilege	2984	svchost.exe
Token: SeRestorePrivilege	2984	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 2744	2244	693ec98d146821a92d447217f548f400_JaffaCakes118.exe	30
PID 2244 wrote to memory of 2744	2244	693ec98d146821a92d447217f548f400_JaffaCakes118.exe	30
PID 2244 wrote to memory of 2744	2244	693ec98d146821a92d447217f548f400_JaffaCakes118.exe	30
PID 2244 wrote to memory of 2744	2244	693ec98d146821a92d447217f548f400_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\693ec98d146821a92d447217f548f400_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\693ec98d146821a92d447217f548f400_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2244
- \??\c:\users\admin\appdata\local\gjjeymjwhe
  "C:\Users\Admin\AppData\Local\Temp\693ec98d146821a92d447217f548f400_JaffaCakes118.exe" a -sc:\users\admin\appdata\local\temp\693ec98d146821a92d447217f548f400_jaffacakes118.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2744

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:2984

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%\gdjgj.cc3

Filesize
19.1MB

MD5
598f3a87ea5f983924d3cd9b8d9aac06

SHA1
76c2b0393506422885cfe545815df173156cab38

SHA256
f28160964cbc9426a3bd2b93dba7495e45d2c2e830079264abf2c5caff858f99

SHA512
106160ef0d6058c305d0fb3fc7934d9578c67265b427ad0f2d3783286385e43a405c0cca3d4bb36c3106a9eafd6e4557c1af6304dc2e648195f2f827ee393385

Download Submit
\Users\Admin\AppData\Local\gjjeymjwhe

Filesize
22.0MB

MD5
7f023384dc288aedafe939b47290cb0d

SHA1
42d2866a348c4d549cbd8542b5227bb4219f31b0

SHA256
6991f83c1e66dbbcb9deca4f0417f7533299fd610281eeaf8877ab8e66e823eb

SHA512
38214aadb09fd00b3df68c7ae9755d3d3d1d2b89d85c54cdf2ecf4597f603ac5315f43042dfefd674ffde8e603529879606171a67747cb096f13f40a63d2e549

Download Submit
memory/2244-2-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/2244-1-0x0000000000400000-0x000000000044E344-memory.dmp

Filesize
312KB

Download
memory/2244-12-0x0000000000400000-0x000000000044E344-memory.dmp

Filesize
312KB

Download
memory/2744-16-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/2744-15-0x0000000000400000-0x000000000044E344-memory.dmp

Filesize
312KB

Download
memory/2744-21-0x0000000000400000-0x000000000044E344-memory.dmp

Filesize
312KB

Download
memory/2984-22-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads