gh0strat | c8ef4512d6bebc14a986159f8c41eef9267ac1cd6c3e77df238b563414da5be1

General

Target

JaffaCakes118_638e26cc68adb93795cf75d26b8fcd53.exe
Size

228KB
MD5

638e26cc68adb93795cf75d26b8fcd53
SHA1

f96888eda1ded4ad93d395fd43f9daa4b21bd43d
SHA256

c8ef4512d6bebc14a986159f8c41eef9267ac1cd6c3e77df238b563414da5be1
SHA512

2ed4f5874c3a8ef53b36c3c426ed30121f075c3a95a1f2ec4124a7f554c8ee9f2ed7eade05d81963da4925f54bd99e15e379e2fe6336c790ef510a9923a6675a
SSDEEP

6144:Y/vT6WtCB/Wwt+jbppyu4Us8V9dgl9d4M1eKh:cb6/rmlh8y

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/files/0x000d0000000141df-4.dat	family_gh0strat
behavioral1/memory/796-5-0x0000000000400000-0x000000000043B468-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

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\fastuserswitchingcompatibility\Parameters\ServiceDll = "C:\\Windows\\system32\\xxxx.scr"	JaffaCakes118_638e26cc68adb93795cf75d26b8fcd53.exe

Deletes itself 1 IoCs

pid	Process
2344	SVCHOST.EXE

Loads dropped DLL 1 IoCs

pid	Process
2344	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 9 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\xxxx.scr	JaffaCakes118_638e26cc68adb93795cf75d26b8fcd53.exe
File opened for modification	C:\Windows\SysWOW64\d5ecf140.del	JaffaCakes118_638e26cc68adb93795cf75d26b8fcd53.exe
File opened for modification	C:\Windows\SysWOW64\85b0df75.del	JaffaCakes118_638e26cc68adb93795cf75d26b8fcd53.exe
File opened for modification	C:\Windows\SysWOW64\148af8cb.del	JaffaCakes118_638e26cc68adb93795cf75d26b8fcd53.exe
File opened for modification	C:\Windows\SysWOW64\c5115d9e.del	JaffaCakes118_638e26cc68adb93795cf75d26b8fcd53.exe
File opened for modification	C:\Windows\SysWOW64\975a113f.del	JaffaCakes118_638e26cc68adb93795cf75d26b8fcd53.exe
File opened for modification	C:\Windows\SysWOW64\5637bba3.del	JaffaCakes118_638e26cc68adb93795cf75d26b8fcd53.exe
File opened for modification	C:\Windows\SysWOW64\cbdb394.del	JaffaCakes118_638e26cc68adb93795cf75d26b8fcd53.exe
File opened for modification	C:\Windows\SysWOW64\SVCHOST.EXE.txt	SVCHOST.EXE

System Location Discovery: System Language Discovery 1 TTPs 2 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	SVCHOST.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_638e26cc68adb93795cf75d26b8fcd53.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	SVCHOST.EXE
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\sYSTEM\cENTRALpROCEssor\0	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 1 IoCs

pid	Process
796	JaffaCakes118_638e26cc68adb93795cf75d26b8fcd53.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeBackupPrivilege	2344	SVCHOST.EXE
Token: SeSecurityPrivilege	2344	SVCHOST.EXE
Token: SeSecurityPrivilege	2344	SVCHOST.EXE
Token: SeBackupPrivilege	2344	SVCHOST.EXE
Token: SeSecurityPrivilege	2344	SVCHOST.EXE
Token: SeBackupPrivilege	2344	SVCHOST.EXE
Token: SeSecurityPrivilege	2344	SVCHOST.EXE

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_638e26cc68adb93795cf75d26b8fcd53.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_638e26cc68adb93795cf75d26b8fcd53.exe"
1⤵
- Server Software Component: Terminal Services DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:796

C:\Windows\SysWOW64\SVCHOST.EXE
C:\Windows\SysWOW64\SVCHOST.EXE -K NETSVCS
1⤵
- Deletes itself
- 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 use of AdjustPrivilegeToken
PID:2344

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Server Software Component

1

T1505

Terminal Services DLL

1

T1505.005

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

\Windows\SysWOW64\xxxx.scr

Filesize
152KB

MD5
557a203034c90b96b7f252e66630932b

SHA1
580c47365230185be67515dc9804754e5a4958aa

SHA256
8cd7155859f4fce9bf45fc6abc78336dde3a81a190c054ff173770ea990e07bd

SHA512
ef124e3fb42bac102d4fe6a625132d9882a35d15ae1356ed27b20cdc864a518cddd5b5079b8c9e31c2a2d8b86599b5988effdccf5f722d9dbdd91691d28cc1fc

Download Submit
memory/796-0-0x0000000000400000-0x000000000043B468-memory.dmp

Filesize
237KB

Download
memory/796-5-0x0000000000400000-0x000000000043B468-memory.dmp

Filesize
237KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads