gh0strat | 22c8b997df90907fd0cd7b2f3691d7b58452b9d439c9ff6225cd464a562f399f

General

Target

JaffaCakes118_36dabf92182637e44a836e7c785d9497.exe
Size

135KB
MD5

36dabf92182637e44a836e7c785d9497
SHA1

b54c0444c159b71e5249c62040966573e14059ec
SHA256

22c8b997df90907fd0cd7b2f3691d7b58452b9d439c9ff6225cd464a562f399f
SHA512

02471b1c6483d7c7ca212d5e57448f72b9a1c30d5a81a8186f7bb474f7343c9f9e72a65d8035d28a10ace18f0569cbb5778a4a60ec6f12c252ad8c2d6ede676b
SSDEEP

3072:umpgkSINDT1VFQAPdPWl6qDwG6+szHyRSTizPKq:n37XVrPtWl6dCs6Sk

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral2/files/0x001200000001da19-5.dat	family_gh0strat
behavioral2/memory/1552-8-0x0000000000400000-0x000000000047D000-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\\Anti.dll"	JaffaCakes118_36dabf92182637e44a836e7c785d9497.exe

Deletes itself 1 IoCs

pid	Process
3808	svchost.exe

Loads dropped DLL 1 IoCs

pid	Process
3808	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 opened for modification	C:\Windows\SysWOW64\Anti.dll	JaffaCakes118_36dabf92182637e44a836e7c785d9497.exe
File opened for modification	C:\Windows\SysWOW64\d2f5ca0e.del	JaffaCakes118_36dabf92182637e44a836e7c785d9497.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	JaffaCakes118_36dabf92182637e44a836e7c785d9497.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 2 IoCs

pid	Process
1552	JaffaCakes118_36dabf92182637e44a836e7c785d9497.exe
1552	JaffaCakes118_36dabf92182637e44a836e7c785d9497.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeBackupPrivilege	3808	svchost.exe
Token: SeSecurityPrivilege	3808	svchost.exe
Token: SeSecurityPrivilege	3808	svchost.exe
Token: SeBackupPrivilege	3808	svchost.exe
Token: SeSecurityPrivilege	3808	svchost.exe
Token: SeBackupPrivilege	3808	svchost.exe
Token: SeSecurityPrivilege	3808	svchost.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_36dabf92182637e44a836e7c785d9497.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_36dabf92182637e44a836e7c785d9497.exe"
1⤵
- Server Software Component: Terminal Services DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:1552

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs -s fastuserswitchingcompatibility
1⤵
- Deletes itself
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:3808

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

\??\c:\windows\SysWOW64\anti.dll

Filesize
148KB

MD5
b5b3c2e84b99f96fa5725349a2708c74

SHA1
109036e9d4a13380062c5b5267e37cfab1de6468

SHA256
9783f0038ebf391f48f0280548bf3ee8c1635cbffa96508d5fc4e9110307d917

SHA512
9c6303f7f9bc9ac3214232483b7ca826222b5811b91a0ce3a97b9d6fca2400239e5ac5a8178a8a101d7426a4eae65e584f6cc92e5f1d5ba85d5a104261e93820

Download Submit
memory/1552-0-0x0000000000400000-0x000000000047D000-memory.dmp

Filesize
500KB

Download
memory/1552-2-0x0000000000720000-0x0000000000820000-memory.dmp

Filesize
1024KB

Download
memory/1552-8-0x0000000000400000-0x000000000047D000-memory.dmp

Filesize
500KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads