gh0strat | 8d4f18738afe3cde45ab03f331c74e5b2be94dc065a16a39c714fbf0a872de41

Analysis

max time kernel
150s
max time network
122s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
23/07/2024, 16:56

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General

Target

CERTIFICATE.dll
Size

105KB
MD5

8b9545d61d9a5a00d8814d25d45f48d0
SHA1

6cea17c9c7a94145193bd68323d9a3f2106e37e7
SHA256

209c3a320b248b4692b95326158b116456104e54005190c729dab03dd5581314
SHA512

55359c0f593e0b6f2c578f2017b5aa1c5f36a452fa52869689ce71069371233177680d72a0647ee39721f3747599ac236173ddf7d2cd3536bedc9301a9fa4dae
SSDEEP

3072:uvBKS+26Y8zoz4EfZRzUKR/F4pEIbybZuwy1Uq:o8tA1fYmFEX2ZuwyC

Score

10^/10

gh0strat discovery rat

Malware Config

Signatures

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral13/files/0x0009000000019412-3.dat	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

Loads dropped DLL 1 IoCs

pid	Process
1320	svchost.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Jrju\Pcvdijydw.jpg	rundll32.exe
File created	C:\Program Files (x86)\Jrju\Pcvdijydw.jpg	rundll32.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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe
1320	svchost.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeBackupPrivilege	1788	rundll32.exe
Token: SeRestorePrivilege	1788	rundll32.exe
Token: SeBackupPrivilege	1788	rundll32.exe
Token: SeRestorePrivilege	1788	rundll32.exe
Token: SeBackupPrivilege	1788	rundll32.exe
Token: SeRestorePrivilege	1788	rundll32.exe
Token: SeBackupPrivilege	1788	rundll32.exe
Token: SeRestorePrivilege	1788	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2988 wrote to memory of 1788	2988	rundll32.exe	30
PID 2988 wrote to memory of 1788	2988	rundll32.exe	30
PID 2988 wrote to memory of 1788	2988	rundll32.exe	30
PID 2988 wrote to memory of 1788	2988	rundll32.exe	30
PID 2988 wrote to memory of 1788	2988	rundll32.exe	30
PID 2988 wrote to memory of 1788	2988	rundll32.exe	30
PID 2988 wrote to memory of 1788	2988	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\CERTIFICATE.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2988
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\CERTIFICATE.dll,#1
  2⤵
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1788

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k imgsvc
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:1320

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\??\c:\program files (x86)\jrju\pcvdijydw.jpg

Filesize
15.4MB

MD5
199cf1fcba57fe9905f1ba88c6a4f4da

SHA1
0d30737c3f33af44d41f31b867584a7fe80eeb6e

SHA256
8a8f3b1ca1e303d59f96e67f0f9ff7eb78f7de4f0f403974a970cbc882a0fb57

SHA512
f556a5476ededcf2b57269cf8f2ad6dd89bfb3525cb43843ac9ad96289d3969159c065c2c2d26d6caae7ca9f553936fe18f961f6b0e2f69718c12627a7fe9f3f

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