gh0strat | 3627b0fb792ecbfc67c827a797b1c268c9da1856d10cc35bbed24b17a17c8b89

General

Target

JaffaCakes118_5199ea9d09658473c4d15ca45b95db22.exe
Size

122KB
MD5

5199ea9d09658473c4d15ca45b95db22
SHA1

ea5bcb19d806eb2817c8836943e3f3cb12c24607
SHA256

3627b0fb792ecbfc67c827a797b1c268c9da1856d10cc35bbed24b17a17c8b89
SHA512

55b319cae6b10fec3b18f7924d663137232737014e85a32ce598dcb68762bbe0607b1c1a006f1fbf0f69d3e771a815a8069964b99f71ea06e6a2d5adc6fabf37
SSDEEP

3072:8Lk395hYXJ0K0i8IUSK9IxDti4+ez011uuSFssxaw0Dsp8:8QqArIUSK9Ihth01eaip8

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral1/files/0x00080000000193b8-11.dat	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
2896	install3643734.exe

Executes dropped EXE 1 IoCs

pid	Process
2896	install3643734.exe

Loads dropped DLL 5 IoCs

pid	Process
2936	JaffaCakes118_5199ea9d09658473c4d15ca45b95db22.exe
2896	install3643734.exe
2896	install3643734.exe
2896	install3643734.exe
2852	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\quuaxbdppf	svchost.exe
File created	C:\Windows\SysWOW64\qmghpxbrcj	svchost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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_5199ea9d09658473c4d15ca45b95db22.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	install3643734.exe
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 4 IoCs

pid	Process
2896	install3643734.exe
2852	svchost.exe
2852	svchost.exe
2852	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	2896	install3643734.exe
Token: SeBackupPrivilege	2896	install3643734.exe
Token: SeBackupPrivilege	2896	install3643734.exe
Token: SeRestorePrivilege	2896	install3643734.exe
Token: SeBackupPrivilege	2852	svchost.exe
Token: SeRestorePrivilege	2852	svchost.exe
Token: SeBackupPrivilege	2852	svchost.exe
Token: SeBackupPrivilege	2852	svchost.exe
Token: SeSecurityPrivilege	2852	svchost.exe
Token: SeSecurityPrivilege	2852	svchost.exe
Token: SeBackupPrivilege	2852	svchost.exe
Token: SeBackupPrivilege	2852	svchost.exe
Token: SeSecurityPrivilege	2852	svchost.exe
Token: SeBackupPrivilege	2852	svchost.exe
Token: SeBackupPrivilege	2852	svchost.exe
Token: SeSecurityPrivilege	2852	svchost.exe
Token: SeBackupPrivilege	2852	svchost.exe
Token: SeRestorePrivilege	2852	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2936 wrote to memory of 2896	2936	JaffaCakes118_5199ea9d09658473c4d15ca45b95db22.exe	30
PID 2936 wrote to memory of 2896	2936	JaffaCakes118_5199ea9d09658473c4d15ca45b95db22.exe	30
PID 2936 wrote to memory of 2896	2936	JaffaCakes118_5199ea9d09658473c4d15ca45b95db22.exe	30
PID 2936 wrote to memory of 2896	2936	JaffaCakes118_5199ea9d09658473c4d15ca45b95db22.exe	30
PID 2936 wrote to memory of 2896	2936	JaffaCakes118_5199ea9d09658473c4d15ca45b95db22.exe	30
PID 2936 wrote to memory of 2896	2936	JaffaCakes118_5199ea9d09658473c4d15ca45b95db22.exe	30
PID 2936 wrote to memory of 2896	2936	JaffaCakes118_5199ea9d09658473c4d15ca45b95db22.exe	30

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5199ea9d09658473c4d15ca45b95db22.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5199ea9d09658473c4d15ca45b95db22.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2936
- C:\Users\Admin\AppData\Roaming\install3643734.exe
  "C:\Users\Admin\AppData\Roaming\install3643734.exe" "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5199ea9d09658473c4d15ca45b95db22.exe" -sC:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5199ea9d09658473c4d15ca45b95db22.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2896

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:2852

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

2

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%\ighpn.pic

Filesize
23.1MB

MD5
0f60f8fd6638aa2754317bd51de191ad

SHA1
450103e01b729d8c91b1d2a22492c73912f17821

SHA256
cb51a7acdad44002bc7ae028ec012dd8bce5e215f696b57319d6d8434e185752

SHA512
36dfbd5bceea927a1db61602dfd45d212a2e83bb127ac4bb64e23e40783c9c87a4fd8814a13aa81ec8c7f3f19aa0b570e7402f4cb8cd1991b09ac309470a40e2

Download Submit
\Users\Admin\AppData\Roaming\install3643734.exe

Filesize
23.0MB

MD5
0c1eb1f050bc53ec36033ab70ee7edd1

SHA1
77910eaf496e030ad62fd6c36723579227614907

SHA256
b4641177b60235c091ab30d7c66b08511a0e1d7c3f88828f191def39bc14a9db

SHA512
955bd6076c9975dfbe59a12aff0ab8e6fff1d07afd19cc4fbca8d334fdaec82095db2590df936622799dda9f46d24d6c36092c8f82c6798d555e66f5a26ffa47

Download Submit
memory/2852-13-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads