gh0strat | 14a1742d30b0ff7d14b1737b5831ad035921c534c998b79551b97f026f2e1d25

General

Target

JaffaCakes118_58c8332d7af8479d16c54d98a7fa5cd5.exe
Size

95KB
MD5

58c8332d7af8479d16c54d98a7fa5cd5
SHA1

89b5c951bfa623bf7ce76a790a4de2e764d7419e
SHA256

14a1742d30b0ff7d14b1737b5831ad035921c534c998b79551b97f026f2e1d25
SHA512

726a3e16e4fdda73dc45bc856257e984795e5d638881b75fe326f1d583934536fc6f41bb7b717234f4f53fd8af38569262777f3c97bead1151a865eb0c1afcfa
SSDEEP

1536:boJFusSx9qYMhdFHS8qdydo3nTzhYxJA+CwNUtBZVY9v8prV7g8n+iO0:bofS4jHS8q/3nTzePCwNUh4E9hgViO0

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/files/0x0009000000016c66-20.dat	family_gh0strat
behavioral1/memory/2488-23-0x0000000000400000-0x000000000044C60F-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
2488	dxlmccborc

Executes dropped EXE 1 IoCs

pid	Process
2488	dxlmccborc

Loads dropped DLL 3 IoCs

pid	Process
472	JaffaCakes118_58c8332d7af8479d16c54d98a7fa5cd5.exe
472	JaffaCakes118_58c8332d7af8479d16c54d98a7fa5cd5.exe
2096	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 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\kcxhxwfiol	svchost.exe
File created	C:\Windows\SysWOW64\kklagahgcg	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_58c8332d7af8479d16c54d98a7fa5cd5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dxlmccborc
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\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
2488	dxlmccborc
2096	svchost.exe
2096	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	2488	dxlmccborc
Token: SeBackupPrivilege	2488	dxlmccborc
Token: SeBackupPrivilege	2488	dxlmccborc
Token: SeRestorePrivilege	2488	dxlmccborc
Token: SeBackupPrivilege	2096	svchost.exe
Token: SeRestorePrivilege	2096	svchost.exe
Token: SeBackupPrivilege	2096	svchost.exe
Token: SeBackupPrivilege	2096	svchost.exe
Token: SeSecurityPrivilege	2096	svchost.exe
Token: SeSecurityPrivilege	2096	svchost.exe
Token: SeBackupPrivilege	2096	svchost.exe
Token: SeBackupPrivilege	2096	svchost.exe
Token: SeSecurityPrivilege	2096	svchost.exe
Token: SeBackupPrivilege	2096	svchost.exe
Token: SeBackupPrivilege	2096	svchost.exe
Token: SeSecurityPrivilege	2096	svchost.exe
Token: SeBackupPrivilege	2096	svchost.exe
Token: SeRestorePrivilege	2096	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 472 wrote to memory of 2488	472	JaffaCakes118_58c8332d7af8479d16c54d98a7fa5cd5.exe	30
PID 472 wrote to memory of 2488	472	JaffaCakes118_58c8332d7af8479d16c54d98a7fa5cd5.exe	30
PID 472 wrote to memory of 2488	472	JaffaCakes118_58c8332d7af8479d16c54d98a7fa5cd5.exe	30
PID 472 wrote to memory of 2488	472	JaffaCakes118_58c8332d7af8479d16c54d98a7fa5cd5.exe	30

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_58c8332d7af8479d16c54d98a7fa5cd5.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_58c8332d7af8479d16c54d98a7fa5cd5.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:472
- \??\c:\users\admin\appdata\local\dxlmccborc
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_58c8332d7af8479d16c54d98a7fa5cd5.exe" a -sc:\users\admin\appdata\local\temp\jaffacakes118_58c8332d7af8479d16c54d98a7fa5cd5.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2488

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:2096

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%\fxuom.cc3

Filesize
24.0MB

MD5
f6435d237e03131b2cb4faadcf119d20

SHA1
d72b2dba924c7167ac12338e8e3eed9948a6cb50

SHA256
9732505bbf60030bebf3024a1ebc3b30bd2d8974a3d4f8ffe3f62713cc1ca09e

SHA512
e9457505bff24d66a9f30e735095fd724980c4456bfb838946c1b32ddfdb76dc3eeda018d77383de8182af8162d1a74ebbba53f3777621bbf3f9b7908f4be753

Download Submit
\Users\Admin\AppData\Local\dxlmccborc

Filesize
20.3MB

MD5
0822eb521ce9d28f6ec1e87fc70123e8

SHA1
afa76b9ec6da821198a104b44067eb66b1c39daf

SHA256
b4ad77bdaccd58ed0152d1837493d1122c48a074e17121308008b5cfa4e64c83

SHA512
4896d4edf02cddde1055d6c25fe1d413b6db69c1715e7bcb500d9dea1a4020de76af7911955949a8a0a3c74b26c9974108e7e177591e044b2b06e19bb54ba58c

Download Submit
memory/472-2-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/472-1-0x0000000000400000-0x000000000044C60F-memory.dmp

Filesize
305KB

Download
memory/472-13-0x00000000003B0000-0x00000000003FD000-memory.dmp

Filesize
308KB

Download
memory/472-12-0x0000000000400000-0x000000000044C60F-memory.dmp

Filesize
305KB

Download
memory/472-26-0x00000000003B0000-0x00000000003FD000-memory.dmp

Filesize
308KB

Download
memory/2096-24-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/2488-15-0x0000000000400000-0x000000000044C60F-memory.dmp

Filesize
305KB

Download
memory/2488-17-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/2488-23-0x0000000000400000-0x000000000044C60F-memory.dmp

Filesize
305KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads