gh0strat | f59b3f463fae5e7c25afab2033f1094e43e575bc6d28ce3534efcf4a66d06b92

General

Target

dd35bca4c87ccd91a41ed56c4368cd40N.dll
Size

137KB
MD5

dd35bca4c87ccd91a41ed56c4368cd40
SHA1

6d0ee86b23a7563d35a8cf05895b82d9cfd55a26
SHA256

f59b3f463fae5e7c25afab2033f1094e43e575bc6d28ce3534efcf4a66d06b92
SHA512

969abc5d1525046756fd0afb13a32dd97a1c114bbd8282a35579113a5fa12df797325910a9b8778ed00e602bc5bd72463408214f8415daa2820b2399664a4ddb
SSDEEP

3072:0R02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuH:x25GgFny61mrah

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/2888-9-0x0000000010000000-0x000000001001C000-memory.dmp	family_gh0strat
behavioral2/memory/2888-5-0x0000000010000000-0x000000001001C000-memory.dmp	family_gh0strat
behavioral2/memory/2888-32-0x0000000010000000-0x000000001001C000-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

Blocklisted process makes network request 1 IoCs

flow	pid	Process
6	2888	rundll32.exe

Boot or Logon Autostart Execution: Port Monitors 1 TTPs 16 IoCs

Adversaries may use port monitors to run an adversary supplied DLL during system boot for persistence or privilege escalation.

persistence

Port Monitors

T1547.010

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\WSD Port\Ports	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\USB Monitor	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\WSD Port\Adapters\WSPrint\OfflinePorts	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\SCSI Port Monitor	svchost.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\Microsoft Shared Fax Monitor	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\Appmon\Ports	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\Local Port	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\Standard TCP/IP Port	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\Standard TCP/IP Port\Ports	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\WSD Port\Adapters\WSPrint	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\SCSI Port Monitor	rundll32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\Appmon	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\WSD Port	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\WSD Port\Adapters\IPP	Spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\SCSI Port Monitor\Driver = "scsimon.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\SCSI Port Monitor\Driver = "scsimon.dll"	svchost.exe

Sets service image path in registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Spooler\ImagePath = "Spoolsv.exe"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Spooler\ImagePath = "Spoolsv.exe"	rundll32.exe

ACProtect 1.3x - 1.4x DLL software 14 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/memory/2888-6-0x00000000026F0000-0x000000000270D000-memory.dmp	acprotect
behavioral2/memory/2888-9-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect
behavioral2/memory/2888-13-0x00000000026F0000-0x000000000270D000-memory.dmp	acprotect
behavioral2/memory/2888-14-0x00000000026F0000-0x000000000270D000-memory.dmp	acprotect
behavioral2/memory/2888-12-0x00000000026F0000-0x000000000270D000-memory.dmp	acprotect
behavioral2/memory/2888-10-0x00000000026F0000-0x000000000270D000-memory.dmp	acprotect
behavioral2/memory/2888-5-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect
behavioral2/memory/2888-18-0x00000000026F0000-0x000000000270D000-memory.dmp	acprotect
behavioral2/memory/2700-28-0x00000000034E0000-0x00000000034FD000-memory.dmp	acprotect
behavioral2/memory/2700-27-0x00000000034E0000-0x00000000034FD000-memory.dmp	acprotect
behavioral2/memory/2700-30-0x00000000034E0000-0x00000000034FD000-memory.dmp	acprotect
behavioral2/memory/2700-25-0x00000000034E0000-0x00000000034FD000-memory.dmp	acprotect
behavioral2/memory/2700-29-0x00000000034E0000-0x00000000034FD000-memory.dmp	acprotect
behavioral2/memory/2888-32-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\com\comb.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\com\comb.dll	svchost.exe
File opened for modification	C:\Windows\SysWOW64\Miscson.dll	svchost.exe
File created	C:\Windows\SysWOW64\Miscson.dll	svchost.exe
File opened for modification	C:\Windows\SysWOW64\scsimon.dll	svchost.exe
File created	C:\Windows\SysWOW64\scsimon.dll	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2888 set thread context of 2700	2888	rundll32.exe	92

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\AppPatch\AcSvcst.dll	rundll32.exe
File opened for modification	C:\Windows\AppPatch\ComBack.Dll	rundll32.exe
File created	C:\Windows\AppPatch\ComBack.Dll	rundll32.exe
File opened for modification	C:\Windows\AppPatch\AcSvcst.dll	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3184	2888	WerFault.exe	90

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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Checks SCSI registry key(s) 3 TTPs 12 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\HardwareID	Spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001	Spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\Properties\{3b2ce006-5e61-4fde-bab8-9b8aac9b26df}\0002	Spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002	Spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\Properties\{3b2ce006-5e61-4fde-bab8-9b8aac9b26df}\0002	Spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_QEMU&Prod_QEMU_DVD-ROM\4&215468a5&0&010000\Properties\{3b2ce006-5e61-4fde-bab8-9b8aac9b26df}\0002	Spoolsv.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\HardwareID	Spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000	Spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{3b2ce006-5e61-4fde-bab8-9b8aac9b26df}\0002	Spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_QEMU&Prod_QEMU_DVD-ROM\4&215468a5&0&010000	Spoolsv.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\HardwareID	Spoolsv.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_QEMU&Prod_QEMU_DVD-ROM\4&215468a5&0&010000\HardwareID	Spoolsv.exe

Modifies data under HKEY_USERS 22 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Devices\Microsoft XPS Document Writer = "winspool,Ne00:"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Devices\Microsoft Print to PDF = "winspool,Ne01:"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Devices\Fax = "winspool,Ne02:"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows NT\CurrentVersion\PrinterPorts\Fax = "winspool,Ne02:,15,45"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Devices\Send To OneNote 2016 = "winspool,nul:"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Devices\Microsoft Print to PDF = "winspool,Ne01:"	Spoolsv.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows NT\CurrentVersion\Devices	Spoolsv.exe
Key created	\REGISTRY\USER\S-1-5-20\Software\Microsoft\Windows NT\CurrentVersion\PrinterPorts	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Devices\Fax = "winspool,Ne02:"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows NT\CurrentVersion\PrinterPorts\Microsoft Print to PDF = "winspool,Ne01:,15,45"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows NT\CurrentVersion\PrinterPorts\Send To OneNote 2016 = "winspool,nul:,15,45"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows NT\CurrentVersion\PrinterPorts\Microsoft XPS Document Writer = "winspool,Ne00:,15,45"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows NT\CurrentVersion\PrinterPorts\Fax = "winspool,Ne02:,15,45"	Spoolsv.exe
Key created	\REGISTRY\USER\S-1-5-20\Software\Microsoft\Windows NT\CurrentVersion\Devices	Spoolsv.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows NT\CurrentVersion\PrinterPorts	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Devices\Microsoft XPS Document Writer = "winspool,Ne00:"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows NT\CurrentVersion\PrinterPorts\Microsoft Print to PDF = "winspool,Ne01:,15,45"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Devices\Send To OneNote 2016 = "winspool,nul:"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows NT\CurrentVersion\PrinterPorts\Send To OneNote 2016 = "winspool,nul:,15,45"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows NT\CurrentVersion\PrinterPorts\Microsoft XPS Document Writer = "winspool,Ne00:,15,45"	Spoolsv.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows NT\CurrentVersion\PrinterPorts	Spoolsv.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows NT\CurrentVersion\Devices	Spoolsv.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2888	rundll32.exe
Token: SeDebugPrivilege	2700	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 5116 wrote to memory of 2888	5116	rundll32.exe	90
PID 5116 wrote to memory of 2888	5116	rundll32.exe	90
PID 5116 wrote to memory of 2888	5116	rundll32.exe	90
PID 2888 wrote to memory of 2700	2888	rundll32.exe	92
PID 2888 wrote to memory of 2700	2888	rundll32.exe	92
PID 2888 wrote to memory of 2700	2888	rundll32.exe	92
PID 2888 wrote to memory of 2700	2888	rundll32.exe	92

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\dd35bca4c87ccd91a41ed56c4368cd40N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5116
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\dd35bca4c87ccd91a41ed56c4368cd40N.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Boot or Logon Autostart Execution: Port Monitors
  - Sets service image path in registry
  - Drops file in System32 directory
  - Suspicious use of SetThreadContext
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2888
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\system32\svchost.exe -k rundll32
    3⤵
    - Boot or Logon Autostart Execution: Port Monitors
    - Sets service image path in registry
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2700
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2888 -s 668
    3⤵
    - Program crash
    PID:3184

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2888 -ip 2888
1⤵
PID:4468

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4212,i,15436195446242760253,4000484513008731869,262144 --variations-seed-version --mojo-platform-channel-handle=4208 /prefetch:8
1⤵
PID:3068

C:\Windows\system32\Spoolsv.exe
Spoolsv.exe
1⤵
- Boot or Logon Autostart Execution: Port Monitors
- Checks SCSI registry key(s)
- Modifies data under HKEY_USERS
PID:704

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Port Monitors

1

T1547.010

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Port Monitors

1

T1547.010

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

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\AppPatch\ComBack.Dll

Filesize
137KB

MD5
66483753d80f5a30de8367fcb6dcceba

SHA1
61b48c976789091b2a2635a5083cece68d1017c2

SHA256
b98451231449008bf9d90c9fb5ec76bbc839a011bb610e5bc959b15bc04a217a

SHA512
c6596a78ebad88c17cad69e3b066f750ccaaac358e799d0d48859a794c5f32252e3aa4b512921ee3788bfb130eca0e7c108c43f6f69630c202dabb9374bb5af6

Download Submit
C:\Windows\SysWOW64\com\comb.dll

Filesize
128B

MD5
2d722c7070a3a9e7a9093e4d4d453656

SHA1
48699437424d87949f685eca53ab94752de27d4c

SHA256
b8cacdfadeef25efa3246c716817dbfb4526b98f9e00d1e3af1437c9ac552d97

SHA512
3e349f62720c842e6ccd6af4b1d97dd607dc1b8edbaea3d95444dba1e09850b4ea2e8fb59e2c5945f9113071d072602d21ac9d05016a46d35e18f1d6e5cc8ae3

Download Submit
memory/2700-35-0x0000000001680000-0x00000000016A7000-memory.dmp

Filesize
156KB

Download
memory/2700-15-0x0000000001680000-0x00000000016A7000-memory.dmp

Filesize
156KB

Download
memory/2700-29-0x00000000034E0000-0x00000000034FD000-memory.dmp

Filesize
116KB

Download
memory/2700-25-0x00000000034E0000-0x00000000034FD000-memory.dmp

Filesize
116KB

Download
memory/2700-30-0x00000000034E0000-0x00000000034FD000-memory.dmp

Filesize
116KB

Download
memory/2700-27-0x00000000034E0000-0x00000000034FD000-memory.dmp

Filesize
116KB

Download
memory/2700-28-0x00000000034E0000-0x00000000034FD000-memory.dmp

Filesize
116KB

Download
memory/2700-17-0x0000000001680000-0x00000000016A7000-memory.dmp

Filesize
156KB

Download
memory/2700-16-0x00000000010D0000-0x00000000010F3000-memory.dmp

Filesize
140KB

Download
memory/2888-12-0x00000000026F0000-0x000000000270D000-memory.dmp

Filesize
116KB

Download
memory/2888-18-0x00000000026F0000-0x000000000270D000-memory.dmp

Filesize
116KB

Download
memory/2888-5-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2888-10-0x00000000026F0000-0x000000000270D000-memory.dmp

Filesize
116KB

Download
memory/2888-6-0x00000000026F0000-0x000000000270D000-memory.dmp

Filesize
116KB

Download
memory/2888-14-0x00000000026F0000-0x000000000270D000-memory.dmp

Filesize
116KB

Download
memory/2888-13-0x00000000026F0000-0x000000000270D000-memory.dmp

Filesize
116KB

Download
memory/2888-32-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2888-34-0x0000000043E50000-0x0000000043E77000-memory.dmp

Filesize
156KB

Download
memory/2888-9-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads