gh0strat | 7f0ba1ca440d4a0485aba863a818a07412bf1d484e4030dbb29785ef7ea95cab

General

Target

7f0ba1ca440d4a0485aba863a818a07412bf1d484e4030dbb29785ef7ea95cab.dll
Size

137KB
MD5

7a32dca74c10c5d5fbdb839a010f4d7b
SHA1

ee0efe5c793978cff54fdb3e8992ce1515da0ab5
SHA256

7f0ba1ca440d4a0485aba863a818a07412bf1d484e4030dbb29785ef7ea95cab
SHA512

94f12750d257936df58afa98b505b1aa97046d34caa54a08bf78ac0f7425c02145b43333592cf274c7821f0679052601120b561437ffdff02980ac9d841aa1c3
SSDEEP

3072:8R02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuv:J25GgFny61mraB

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/4620-6-0x0000000010000000-0x000000001001C000-memory.dmp	family_gh0strat
behavioral2/memory/4620-5-0x0000000010000000-0x000000001001C000-memory.dmp	family_gh0strat
behavioral2/memory/4620-32-0x0000000010000000-0x000000001001C000-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
Gh0strat family
gh0strat

Blocklisted process makes network request 1 IoCs

flow	pid	Process
4	4620	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\SCSI Port Monitor	rundll32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\WSD Port	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
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\Local Port	Spoolsv.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\WSD Port\Adapters\WSPrint	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\Appmon\Ports	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\USB Monitor	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\WSD Port\Ports	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\Appmon	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\IPP	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\WSD Port\Adapters\WSPrint\OfflinePorts	Spoolsv.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"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Spooler\ImagePath = "Spoolsv.exe"	svchost.exe

ACProtect 1.3x - 1.4x DLL software 15 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/memory/4620-6-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect
behavioral2/memory/4620-5-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect
behavioral2/memory/4620-7-0x0000000002690000-0x00000000026AD000-memory.dmp	acprotect
behavioral2/memory/4620-10-0x0000000002690000-0x00000000026AD000-memory.dmp	acprotect
behavioral2/memory/4620-15-0x0000000002690000-0x00000000026AD000-memory.dmp	acprotect
behavioral2/memory/4620-14-0x0000000002690000-0x00000000026AD000-memory.dmp	acprotect
behavioral2/memory/4620-13-0x0000000002690000-0x00000000026AD000-memory.dmp	acprotect
behavioral2/memory/4620-12-0x0000000002690000-0x00000000026AD000-memory.dmp	acprotect
behavioral2/memory/312-24-0x0000000002D70000-0x0000000002D8D000-memory.dmp	acprotect
behavioral2/memory/312-29-0x0000000002D70000-0x0000000002D8D000-memory.dmp	acprotect
behavioral2/memory/312-30-0x0000000002D70000-0x0000000002D8D000-memory.dmp	acprotect
behavioral2/memory/312-28-0x0000000002D70000-0x0000000002D8D000-memory.dmp	acprotect
behavioral2/memory/312-27-0x0000000002D70000-0x0000000002D8D000-memory.dmp	acprotect
behavioral2/memory/312-25-0x0000000002D70000-0x0000000002D8D000-memory.dmp	acprotect
behavioral2/memory/4620-32-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\scsimon.dll	svchost.exe
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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4620 set thread context of 312	4620	rundll32.exe	86

Drops file in Windows directory 4 IoCs

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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3056	4620	WerFault.exe	83

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 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 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\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\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_QEMU&Prod_QEMU_DVD-ROM\4&215468a5&0&010000\HardwareID	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

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

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4620	rundll32.exe
Token: SeDebugPrivilege	312	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1508 wrote to memory of 4620	1508	rundll32.exe	83
PID 1508 wrote to memory of 4620	1508	rundll32.exe	83
PID 1508 wrote to memory of 4620	1508	rundll32.exe	83
PID 4620 wrote to memory of 312	4620	rundll32.exe	86
PID 4620 wrote to memory of 312	4620	rundll32.exe	86
PID 4620 wrote to memory of 312	4620	rundll32.exe	86
PID 4620 wrote to memory of 312	4620	rundll32.exe	86

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7f0ba1ca440d4a0485aba863a818a07412bf1d484e4030dbb29785ef7ea95cab.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1508
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\7f0ba1ca440d4a0485aba863a818a07412bf1d484e4030dbb29785ef7ea95cab.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:4620
- - 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:312
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4620 -s 616
    3⤵
    - Program crash
    PID:3056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4620 -ip 4620
1⤵
PID:4340

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:4204

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\AppPatch\ComBack.Dll

Filesize
137KB

MD5
eeeeb8763e36ae30d7fb656443982acf

SHA1
9efb37a1d6aae96f56958b536d1b09be3214862b

SHA256
34bf2e0f692bb1e902db956e45946197e0da9042b6c9253a783c05e55d74bcd5

SHA512
1b09779884f229724ed72cf67bf16ddb3338341d659402a7219f695bf565e4aaba644dc4639a59c99dc56b92686a03e4a70ece94e23b0ab11c5e134523f74422

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

Filesize
128B

MD5
3e4746e0a4641a05f087a7a849a0ca0b

SHA1
80313c1c33f1a072f5002892ce5bcf7c45397b5a

SHA256
4b66e0564f896fbb7297133101329f81d09aa526f8366c6fdc68cb6734d5ffff

SHA512
aed43538c3dcb41c9aeda7fa8250a9e6cfab5e7b331d7673da8866c0eeb3244b468691e15e66c55c2255f1edaf6f25e4d56cb7516222e6cad1ba7ae794ed7d4f

Download Submit
memory/312-17-0x0000000000760000-0x0000000000783000-memory.dmp

Filesize
140KB

Download
memory/312-24-0x0000000002D70000-0x0000000002D8D000-memory.dmp

Filesize
116KB

Download
memory/312-18-0x0000000000F10000-0x0000000000F37000-memory.dmp

Filesize
156KB

Download
memory/312-35-0x0000000000F10000-0x0000000000F37000-memory.dmp

Filesize
156KB

Download
memory/312-16-0x0000000000F10000-0x0000000000F37000-memory.dmp

Filesize
156KB

Download
memory/312-25-0x0000000002D70000-0x0000000002D8D000-memory.dmp

Filesize
116KB

Download
memory/312-27-0x0000000002D70000-0x0000000002D8D000-memory.dmp

Filesize
116KB

Download
memory/312-28-0x0000000002D70000-0x0000000002D8D000-memory.dmp

Filesize
116KB

Download
memory/312-30-0x0000000002D70000-0x0000000002D8D000-memory.dmp

Filesize
116KB

Download
memory/312-29-0x0000000002D70000-0x0000000002D8D000-memory.dmp

Filesize
116KB

Download
memory/4620-15-0x0000000002690000-0x00000000026AD000-memory.dmp

Filesize
116KB

Download
memory/4620-12-0x0000000002690000-0x00000000026AD000-memory.dmp

Filesize
116KB

Download
memory/4620-5-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/4620-7-0x0000000002690000-0x00000000026AD000-memory.dmp

Filesize
116KB

Download
memory/4620-13-0x0000000002690000-0x00000000026AD000-memory.dmp

Filesize
116KB

Download
memory/4620-14-0x0000000002690000-0x00000000026AD000-memory.dmp

Filesize
116KB

Download
memory/4620-10-0x0000000002690000-0x00000000026AD000-memory.dmp

Filesize
116KB

Download
memory/4620-32-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/4620-34-0x0000000043E50000-0x0000000043E77000-memory.dmp

Filesize
156KB

Download
memory/4620-6-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads