gh0strat | 2ed40624caec4d53c6da7621706acbe03ea86487b1c81198f1c5a746e6d7f24e

General

Target

JaffaCakes118_634f3f8227a465607e1159f74970c7df.exe
Size

192KB
MD5

634f3f8227a465607e1159f74970c7df
SHA1

d75f25bf1ff1c5d5bf94425e3d92fc7662d2b4cf
SHA256

2ed40624caec4d53c6da7621706acbe03ea86487b1c81198f1c5a746e6d7f24e
SHA512

d21ba38d084b05c847b18bf6b5e43ef16cb7df29205158ad41c61d36e1b1e31f06759285655ad941fa1d75f47e3cf592de22ce0b2541db0670666c6af6b78ee9
SSDEEP

3072:5SGFhaV+1AJCVM9RFjkLWP5UhzPgMGdSBilthwPRBSghzPsxoCGqxMEku:NhaV+1jVMntk9hzYMtBilthwPRtPs9GR

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 4 IoCs

resource	yara_rule
behavioral2/files/0x000500000001eb56-3.dat	family_gh0strat
behavioral2/memory/2240-5-0x0000000010000000-0x0000000010028000-memory.dmp	family_gh0strat
behavioral2/memory/3288-26-0x0000000000400000-0x0000000000431000-memory.dmp	family_gh0strat
behavioral2/memory/2240-27-0x0000000010000000-0x0000000010028000-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 2 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\fastuserswitchingcompatibility\Parameters\ServiceDll = "C:\\PROGRA~2\\COMMON~1\\eyfjy\\eyfjy.dll"	JaffaCakes118_634f3f8227a465607e1159f74970c7df.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\fastuserswitchingcompatibility\Parameters\ServiceDll = "C:\\PROGRA~2\\COMMON~1\\eyfjy\\eyfjy.dll"	svchost.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\fastuserswitchingcompatibility\ImagePath = "%SystemRoot%\\System32\\svchost.exe -k netsvcs"	svchost.exe

Loads dropped DLL 1 IoCs

pid	Process
2240	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 17 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\dad53dd.del	JaffaCakes118_634f3f8227a465607e1159f74970c7df.exe
File opened for modification	C:\Windows\SysWOW64\35172304.del	JaffaCakes118_634f3f8227a465607e1159f74970c7df.exe
File opened for modification	C:\Windows\SysWOW64\81771310.del	JaffaCakes118_634f3f8227a465607e1159f74970c7df.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	svchost.exe
File opened for modification	C:\Windows\SysWOW64\4ef54a5d.del	JaffaCakes118_634f3f8227a465607e1159f74970c7df.exe
File opened for modification	C:\Windows\SysWOW64\bda338ff.del	JaffaCakes118_634f3f8227a465607e1159f74970c7df.exe
File opened for modification	C:\Windows\SysWOW64\a4363793.del	JaffaCakes118_634f3f8227a465607e1159f74970c7df.exe
File opened for modification	C:\Windows\SysWOW64\d2f5ca0e.del	JaffaCakes118_634f3f8227a465607e1159f74970c7df.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	svchost.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	svchost.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	svchost.exe
File opened for modification	C:\Windows\SysWOW64\9b56e972.del	JaffaCakes118_634f3f8227a465607e1159f74970c7df.exe
File opened for modification	C:\Windows\SysWOW64\a8c20fb6.del	JaffaCakes118_634f3f8227a465607e1159f74970c7df.exe
File opened for modification	C:\Windows\SysWOW64\ab5e7ac5.del	JaffaCakes118_634f3f8227a465607e1159f74970c7df.exe
File opened for modification	C:\Windows\SysWOW64\b198415e.del	JaffaCakes118_634f3f8227a465607e1159f74970c7df.exe
File opened for modification	C:\Windows\SysWOW64\729d73e9.del	JaffaCakes118_634f3f8227a465607e1159f74970c7df.exe
File opened for modification	C:\Windows\SysWOW64\4ac26bd1.del	JaffaCakes118_634f3f8227a465607e1159f74970c7df.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~2\COMMON~1\eyfjy\eyfjy.dll	JaffaCakes118_634f3f8227a465607e1159f74970c7df.exe
File opened for modification	C:\PROGRA~2\COMMON~1\eyfjy\eyfjy.dlll	JaffaCakes118_634f3f8227a465607e1159f74970c7df.exe

System Location Discovery: System Language Discovery 1 TTPs 14 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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_634f3f8227a465607e1159f74970c7df.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 13 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
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum\Version = "7"	svchost.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	svchost.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	svchost.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	svchost.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	svchost.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum	svchost.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3288	JaffaCakes118_634f3f8227a465607e1159f74970c7df.exe
3288	JaffaCakes118_634f3f8227a465607e1159f74970c7df.exe
2240	svchost.exe
2240	svchost.exe
2240	svchost.exe
2240	svchost.exe
2240	svchost.exe
2240	svchost.exe
2240	svchost.exe
2240	svchost.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeBackupPrivilege	2240	svchost.exe
Token: SeSecurityPrivilege	2240	svchost.exe
Token: SeSecurityPrivilege	2240	svchost.exe
Token: SeBackupPrivilege	2240	svchost.exe
Token: SeSecurityPrivilege	2240	svchost.exe
Token: SeBackupPrivilege	2240	svchost.exe
Token: SeSecurityPrivilege	2240	svchost.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_634f3f8227a465607e1159f74970c7df.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_634f3f8227a465607e1159f74970c7df.exe"
1⤵
- Server Software Component: Terminal Services DLL
- Drops file in System32 directory
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:3288

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs -s fastuserswitchingcompatibility
1⤵
- Server Software Component: Terminal Services DLL
- Sets service image path in registry
- 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:2240

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs -s ias
1⤵
- System Location Discovery: System Language Discovery
PID:1400

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs -s irmon
1⤵
- System Location Discovery: System Language Discovery
PID:2908

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs -s nla
1⤵
- System Location Discovery: System Language Discovery
PID:4864

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs -s ntmssvc
1⤵
- System Location Discovery: System Language Discovery
PID:1448

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs -s nwcworkstation
1⤵
- System Location Discovery: System Language Discovery
PID:3536

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs -s srservice
1⤵
- System Location Discovery: System Language Discovery
PID:1060

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs -s wmi
1⤵
- System Location Discovery: System Language Discovery
PID:1828

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs -s wmdmpmsp
1⤵
- System Location Discovery: System Language Discovery
PID:4728

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs -s logonhours
1⤵
- System Location Discovery: System Language Discovery
PID:4752

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs -s pcaudit
1⤵
- System Location Discovery: System Language Discovery
PID:4444

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs -s helpsvc
1⤵
- System Location Discovery: System Language Discovery
PID:1632

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs -s uploadmgr
1⤵
- System Location Discovery: System Language Discovery
PID:3064

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Server Software Component

1

T1505

Terminal Services DLL

1

T1505.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

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:\progra~2\common~1\eyfjy\eyfjy.dll

Filesize
152KB

MD5
7a37ecf789f757c826229620280eafc6

SHA1
8e76d32821678c89d8a16e9fb088e70e7c1664f4

SHA256
eb85b8c22080f9b708da0c05c3c98e3ff726c4be614f99152f1a45161aa7c5cc

SHA512
0facebaee260e454a7f7b56e6d239c8b415620ecc86fcce4cc73fe508cda033748292c2d20744e9ba26e42485318570a86e928f6e8ce776db0529f41e329d424

Download Submit
memory/2240-5-0x0000000010000000-0x0000000010028000-memory.dmp

Filesize
160KB

Download
memory/2240-27-0x0000000010000000-0x0000000010028000-memory.dmp

Filesize
160KB

Download
memory/3288-0-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/3288-26-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads