gh0strat | 45ab670a19a585dd60827262b572c9db7e4413bac9257af9b4b1185df961683d

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25/12/2023, 04:41

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General

Target

05baf7aab411250830c065737320af88.exe
Size

133KB
MD5

05baf7aab411250830c065737320af88
SHA1

8039eb60a620e0b275af1e3f742850d846d89947
SHA256

45ab670a19a585dd60827262b572c9db7e4413bac9257af9b4b1185df961683d
SHA512

7651c1ccb685944533b9cfcee48c85407083dedc6017cf3908249ff0d5fae16a9f6d9b1d7235634d0a5d05c10cca13404a2af8334cac11152f91928d16507072
SSDEEP

3072:hUasnnVCKBt2q0nyXUmKR6dWj/RaYJ1h5JRaxs5e5:hUasnnVhBt2qKCUm0bjZxJ1mL

Score

10^/10

gh0strat persistence rat

Malware Config

Signatures

Gh0st RAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/2644-0-0x0000000000400000-0x000000000041FEF0-memory.dmp	family_gh0strat
behavioral2/files/0x000300000001e982-2.dat	family_gh0strat
behavioral2/memory/2644-3-0x0000000000400000-0x000000000041FEF0-memory.dmp	family_gh0strat
behavioral2/memory/1876-5-0x0000000010000000-0x0000000010019000-memory.dmp	family_gh0strat
behavioral2/memory/2808-7-0x0000000010000000-0x0000000010019000-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 2 IoCs

flow	pid	Process
4	2808	rundll32.exe
135	2808	rundll32.exe

Sets DLL path for service in the 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\360svc\Parameters\ServiceDll = "C:\\Windows\\Web\\e57418dkill.dll"	05baf7aab411250830c065737320af88.exe

Loads dropped DLL 2 IoCs

pid	Process
1876	svchost.exe
2808	rundll32.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Web	05baf7aab411250830c065737320af88.exe
File created	C:\Windows\Web\e57418dkill.dll	05baf7aab411250830c065737320af88.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	rundll32.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	rundll32.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	rundll32.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	rundll32.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	rundll32.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1876	svchost.exe
Token: SeDebugPrivilege	2808	rundll32.exe
Token: SeDebugPrivilege	2808	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1876 wrote to memory of 2808	1876	svchost.exe	90
PID 1876 wrote to memory of 2808	1876	svchost.exe	90
PID 1876 wrote to memory of 2808	1876	svchost.exe	90

C:\Users\Admin\AppData\Local\Temp\05baf7aab411250830c065737320af88.exe
"C:\Users\Admin\AppData\Local\Temp\05baf7aab411250830c065737320af88.exe"
1⤵
- Sets DLL path for service in the registry
- Drops file in Windows directory
PID:2644

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs
1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1876
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe c:\windows\web\e57418dkill.dll wintest
  2⤵
  - Blocklisted process makes network request
  - Loads dropped DLL
  - Modifies data under HKEY_USERS
  - Suspicious use of AdjustPrivilegeToken
  PID:2808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\??\c:\windows\web\e57418dkill.dll

Filesize
99KB

MD5
3240584a55e127ed2b23384d5df6069c

SHA1
c800976ecfe5d919465857606b0a6c9248f9baba

SHA256
75289bafd867fb34ec01204afa19631fa0b3e449446ca478657ae8a6c54ddd7a

SHA512
cd7ae3fbb63a90be19ea2bb18ca40d91f03c41ed36328e3e1f6de14578541d67fcda48102dd60a1111da7b24601aa04f0c144dbb9dfc776c64e2f14dbfc8f136

Download Submit
memory/1876-5-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2644-0-0x0000000000400000-0x000000000041FEF0-memory.dmp

Filesize
127KB

Download
memory/2644-3-0x0000000000400000-0x000000000041FEF0-memory.dmp

Filesize
127KB

Download
memory/2808-7-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads