gh0strat | 808d7208df6cebd677121c2dd9ed0e322ebc50e885132252dbb49f0a65d9b71f

General

Target

JaffaCakes118_38b3d5d7debf9de1512e8423940f065e.exe
Size

95KB
MD5

38b3d5d7debf9de1512e8423940f065e
SHA1

48df0dda0b3ec8b69a7f8cbc002142be71838917
SHA256

808d7208df6cebd677121c2dd9ed0e322ebc50e885132252dbb49f0a65d9b71f
SHA512

deae428fbbc8a234c7e70724d25c88d4a334995911d3fbe4ebba6c68f9efca2b0d6a81f6e83ce834663670fe7392103db622261b59042311fc891b7db709532b
SSDEEP

1536:hG0qFusSx9qYMhdFHS8qdydo3nTzhYxJA+CwNUtBZVY9v8prDX6qlRBlT:hPwS4jHS8q/3nTzePCwNUh4E9DX1zT

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 4 IoCs

resource	yara_rule
behavioral1/files/0x0008000000016cc5-19.dat	family_gh0strat
behavioral1/memory/532-22-0x0000000000400000-0x000000000044C610-memory.dmp	family_gh0strat
behavioral1/memory/2496-25-0x0000000020000000-0x0000000020027000-memory.dmp	family_gh0strat
behavioral1/memory/2496-27-0x0000000020000000-0x0000000020027000-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
Gh0strat family
gh0strat

Deletes itself 1 IoCs

pid	Process
532	fpkstflkpx

Executes dropped EXE 1 IoCs

pid	Process
532	fpkstflkpx

Loads dropped DLL 3 IoCs

pid	Process
1292	JaffaCakes118_38b3d5d7debf9de1512e8423940f065e.exe
1292	JaffaCakes118_38b3d5d7debf9de1512e8423940f065e.exe
2496	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\qkgsknrmmh	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	JaffaCakes118_38b3d5d7debf9de1512e8423940f065e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fpkstflkpx
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\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
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft	svchost.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
532	fpkstflkpx
2496	svchost.exe
2496	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	532	fpkstflkpx
Token: SeBackupPrivilege	532	fpkstflkpx
Token: SeBackupPrivilege	532	fpkstflkpx
Token: SeRestorePrivilege	532	fpkstflkpx
Token: SeBackupPrivilege	2496	svchost.exe
Token: SeRestorePrivilege	2496	svchost.exe
Token: SeBackupPrivilege	2496	svchost.exe
Token: SeBackupPrivilege	2496	svchost.exe
Token: SeSecurityPrivilege	2496	svchost.exe
Token: SeSecurityPrivilege	2496	svchost.exe
Token: SeBackupPrivilege	2496	svchost.exe
Token: SeBackupPrivilege	2496	svchost.exe
Token: SeSecurityPrivilege	2496	svchost.exe
Token: SeBackupPrivilege	2496	svchost.exe
Token: SeBackupPrivilege	2496	svchost.exe
Token: SeSecurityPrivilege	2496	svchost.exe
Token: SeBackupPrivilege	2496	svchost.exe
Token: SeRestorePrivilege	2496	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1292 wrote to memory of 532	1292	JaffaCakes118_38b3d5d7debf9de1512e8423940f065e.exe	30
PID 1292 wrote to memory of 532	1292	JaffaCakes118_38b3d5d7debf9de1512e8423940f065e.exe	30
PID 1292 wrote to memory of 532	1292	JaffaCakes118_38b3d5d7debf9de1512e8423940f065e.exe	30
PID 1292 wrote to memory of 532	1292	JaffaCakes118_38b3d5d7debf9de1512e8423940f065e.exe	30

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_38b3d5d7debf9de1512e8423940f065e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_38b3d5d7debf9de1512e8423940f065e.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1292
- \??\c:\users\admin\appdata\local\fpkstflkpx
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_38b3d5d7debf9de1512e8423940f065e.exe" a -sc:\users\admin\appdata\local\temp\jaffacakes118_38b3d5d7debf9de1512e8423940f065e.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:532

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:2496

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%\jkrgv.cc3

Filesize
24.0MB

MD5
355d24fbf8b6632fa21b9a57740285b7

SHA1
992414eb104241c88a14f25d77caf59944328786

SHA256
bea9ef8bb252f253578fbb4855008fface119d3faa0ad43e3d54837abf2b7776

SHA512
224af8607cdf6b393ee4d710d2ab8c205f82b29a7e1bd97e3547cf951467c227175119f7577b095ad4ebe966243be678b4d71d3acbb83db4bcad72eaceec5fd7

Download Submit
\Users\Admin\AppData\Local\fpkstflkpx

Filesize
20.1MB

MD5
c5e308c111745b35a5f1dd402847cd37

SHA1
aca9310fd886e437f99a76ebf2721444e507d8a0

SHA256
2d66ae5cb71f7fd8c08282af7fd487a2855133f7b8e0163d3c29a4243638acad

SHA512
18dde89c0c88f738a32130a55c1f2510bd87d66290c1ff5f52c3de46c0a0cade28db7c1ad57a216089042d196e17787dd5e4e9d30df2d2598d677390adf2859c

Download Submit
memory/532-16-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/532-15-0x0000000000400000-0x000000000044C610-memory.dmp

Filesize
305KB

Download
memory/532-22-0x0000000000400000-0x000000000044C610-memory.dmp

Filesize
305KB

Download
memory/1292-2-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/1292-1-0x0000000000400000-0x000000000044C610-memory.dmp

Filesize
305KB

Download
memory/1292-12-0x0000000000400000-0x000000000044C610-memory.dmp

Filesize
305KB

Download
memory/2496-23-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/2496-25-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download
memory/2496-27-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads