gh0strat | b89a5e274441184a38d8e9006c8ca5c82c24448bc423f080e1b77fbccc3c4184

General

Target

8d6a123f588e72e6e5c198bb6eb2d0d7_JaffaCakes118.exe
Size

96KB
MD5

8d6a123f588e72e6e5c198bb6eb2d0d7
SHA1

d90ded3f1b1175ba8b5a3b286f5cddf9387ffcce
SHA256

b89a5e274441184a38d8e9006c8ca5c82c24448bc423f080e1b77fbccc3c4184
SHA512

6076af591fdc19b071a0e58dc15fbd44db72465708d7b862a9f5fd4b00a04785b1087a139e1d5ca4d6d3ea9db5ed443b3351e39e0a4c9629e714c9146f932a54
SSDEEP

1536:bXFusSx9qYMhdFHS8qdydo3nTzhYxJA+CwNUtBZVY9v8prHJw/9hvA8ph:bhS4jHS8q/3nTzePCwNUh4E9yhY8ph

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/files/0x00090000000175d0-21.dat	family_gh0strat
behavioral1/memory/2060-22-0x0000000000400000-0x000000000044E3BC-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
2060	giwytxmuiw

Executes dropped EXE 1 IoCs

pid	Process
2060	giwytxmuiw

Loads dropped DLL 3 IoCs

pid	Process
2148	8d6a123f588e72e6e5c198bb6eb2d0d7_JaffaCakes118.exe
2148	8d6a123f588e72e6e5c198bb6eb2d0d7_JaffaCakes118.exe
2724	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\sdbtqpvojg	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	8d6a123f588e72e6e5c198bb6eb2d0d7_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	giwytxmuiw
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
2060	giwytxmuiw
2724	svchost.exe
2724	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	2060	giwytxmuiw
Token: SeBackupPrivilege	2060	giwytxmuiw
Token: SeBackupPrivilege	2060	giwytxmuiw
Token: SeRestorePrivilege	2060	giwytxmuiw
Token: SeBackupPrivilege	2724	svchost.exe
Token: SeRestorePrivilege	2724	svchost.exe
Token: SeBackupPrivilege	2724	svchost.exe
Token: SeBackupPrivilege	2724	svchost.exe
Token: SeSecurityPrivilege	2724	svchost.exe
Token: SeSecurityPrivilege	2724	svchost.exe
Token: SeBackupPrivilege	2724	svchost.exe
Token: SeBackupPrivilege	2724	svchost.exe
Token: SeSecurityPrivilege	2724	svchost.exe
Token: SeBackupPrivilege	2724	svchost.exe
Token: SeBackupPrivilege	2724	svchost.exe
Token: SeSecurityPrivilege	2724	svchost.exe
Token: SeBackupPrivilege	2724	svchost.exe
Token: SeRestorePrivilege	2724	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2148 wrote to memory of 2060	2148	8d6a123f588e72e6e5c198bb6eb2d0d7_JaffaCakes118.exe	30
PID 2148 wrote to memory of 2060	2148	8d6a123f588e72e6e5c198bb6eb2d0d7_JaffaCakes118.exe	30
PID 2148 wrote to memory of 2060	2148	8d6a123f588e72e6e5c198bb6eb2d0d7_JaffaCakes118.exe	30
PID 2148 wrote to memory of 2060	2148	8d6a123f588e72e6e5c198bb6eb2d0d7_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\8d6a123f588e72e6e5c198bb6eb2d0d7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8d6a123f588e72e6e5c198bb6eb2d0d7_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2148
- \??\c:\users\admin\appdata\local\giwytxmuiw
  "C:\Users\Admin\AppData\Local\Temp\8d6a123f588e72e6e5c198bb6eb2d0d7_JaffaCakes118.exe" a -sc:\users\admin\appdata\local\temp\8d6a123f588e72e6e5c198bb6eb2d0d7_jaffacakes118.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2060

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:2724

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

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Downloads

\ProgramData\Storm\update\%SESSIONNAME%\hqrye.cc3

Filesize
22.1MB

MD5
98fd163f70c4107cc8a6d2cf0ea3e132

SHA1
f8e70add7f77b76e95584afb3c6ffeacdf7ac6e4

SHA256
f0f42caa05c45eb53213ee0e2f44d3680cc5f7355c44d7e9e19d9cb162b33ef9

SHA512
66d37413d3cead6dd71a6559b63ecb540b0cc4a6855f499b08ede29343b047d6790ad10c3d5eeb7356a539cfac26170384603944e38ef130444962a6f600f757

Download Submit
\Users\Admin\AppData\Local\giwytxmuiw

Filesize
23.1MB

MD5
915fb9612dc57da47cc8d2eb6aeebc02

SHA1
cbafd24d378e936d59600919638caa31dc5166e2

SHA256
049ce9e232919fa8157bbe3573616f9af832b74b2a259af9d9ee0ec1ada9325c

SHA512
62e50ee59ad0bd942db747a9ef5425117a9233be97498fb15d8ed469e911460bde70141250e109d50d31440a47665ea2608f8442ca1ae96af0b51e32c34e4a0b

Download Submit
memory/2060-17-0x0000000000400000-0x000000000044E3BC-memory.dmp

Filesize
312KB

Download
memory/2060-16-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/2060-22-0x0000000000400000-0x000000000044E3BC-memory.dmp

Filesize
312KB

Download
memory/2148-2-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/2148-1-0x0000000000400000-0x000000000044E3BC-memory.dmp

Filesize
312KB

Download
memory/2148-6-0x0000000000230000-0x000000000027F000-memory.dmp

Filesize
316KB

Download
memory/2148-15-0x0000000000400000-0x000000000044E3BC-memory.dmp

Filesize
312KB

Download
memory/2724-23-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads