gh0strat | 5e5728ab308d567bc8e1f23ff522685ff3d787269448253518eeefbb0b4bc664

Analysis

max time kernel
91s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
05/12/2022, 14:13

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General

Target

5e5728ab308d567bc8e1f23ff522685ff3d787269448253518eeefbb0b4bc664.exe
Size

146KB
MD5

7940a678cac74989d7b61f418e56d573
SHA1

39ba8d5ebf0aac8d837e2c103b2c4bce90165ff9
SHA256

5e5728ab308d567bc8e1f23ff522685ff3d787269448253518eeefbb0b4bc664
SHA512

6f8ba8b275da51561581f8f98401832d1283a1bd9fd90cef5f460bf39c3570a9ea6a749ba48fcb186b84a21359a5ff5fb048edf47feb45ae8a6904958de5cd15
SSDEEP

3072:lFfGQhEOLfuDg0PtOqzKONqsEykRLSewpvyNPXdvpkh:lQOFStZzKqqsE6ew

Score

10^/10

gh0strat persistence rat upx

Malware Config

Signatures

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/4032-134-0x0000000010000000-0x000000001003B000-memory.dmp	family_gh0strat
behavioral2/memory/4032-135-0x0000000010000000-0x000000001003B000-memory.dmp	family_gh0strat
behavioral2/memory/4032-138-0x0000000010000000-0x000000001003B000-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

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4032-132-0x0000000010000000-0x000000001003B000-memory.dmp	upx
behavioral2/memory/4032-134-0x0000000010000000-0x000000001003B000-memory.dmp	upx
behavioral2/memory/4032-135-0x0000000010000000-0x000000001003B000-memory.dmp	upx
behavioral2/memory/4032-138-0x0000000010000000-0x000000001003B000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	5e5728ab308d567bc8e1f23ff522685ff3d787269448253518eeefbb0b4bc664.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DF6373EF = "C:\\Windows\\DF6373EF\\svchsot.exe"	5e5728ab308d567bc8e1f23ff522685ff3d787269448253518eeefbb0b4bc664.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\DF6373EF\svchsot.exe	5e5728ab308d567bc8e1f23ff522685ff3d787269448253518eeefbb0b4bc664.exe
File created	C:\Windows\DF6373EF\svchsot.exe	5e5728ab308d567bc8e1f23ff522685ff3d787269448253518eeefbb0b4bc664.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4228	4032	WerFault.exe	82
2404	4032	WerFault.exe	82

Runs net.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4032	5e5728ab308d567bc8e1f23ff522685ff3d787269448253518eeefbb0b4bc664.exe
4032	5e5728ab308d567bc8e1f23ff522685ff3d787269448253518eeefbb0b4bc664.exe
4032	5e5728ab308d567bc8e1f23ff522685ff3d787269448253518eeefbb0b4bc664.exe
4032	5e5728ab308d567bc8e1f23ff522685ff3d787269448253518eeefbb0b4bc664.exe
4032	5e5728ab308d567bc8e1f23ff522685ff3d787269448253518eeefbb0b4bc664.exe
4032	5e5728ab308d567bc8e1f23ff522685ff3d787269448253518eeefbb0b4bc664.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4032	5e5728ab308d567bc8e1f23ff522685ff3d787269448253518eeefbb0b4bc664.exe
Token: SeDebugPrivilege	4032	5e5728ab308d567bc8e1f23ff522685ff3d787269448253518eeefbb0b4bc664.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4032 wrote to memory of 1000	4032	5e5728ab308d567bc8e1f23ff522685ff3d787269448253518eeefbb0b4bc664.exe	85
PID 4032 wrote to memory of 1000	4032	5e5728ab308d567bc8e1f23ff522685ff3d787269448253518eeefbb0b4bc664.exe	85
PID 4032 wrote to memory of 1000	4032	5e5728ab308d567bc8e1f23ff522685ff3d787269448253518eeefbb0b4bc664.exe	85
PID 1000 wrote to memory of 4544	1000	net.exe	86
PID 1000 wrote to memory of 4544	1000	net.exe	86
PID 1000 wrote to memory of 4544	1000	net.exe	86

C:\Users\Admin\AppData\Local\Temp\5e5728ab308d567bc8e1f23ff522685ff3d787269448253518eeefbb0b4bc664.exe
"C:\Users\Admin\AppData\Local\Temp\5e5728ab308d567bc8e1f23ff522685ff3d787269448253518eeefbb0b4bc664.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4032
- C:\Windows\SysWOW64\net.exe
  net start "Task Scheduler"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1000
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 start "Task Scheduler"
    3⤵
    PID:4544
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4032 -s 616
  2⤵
  - Program crash
  PID:4228
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4032 -s 624
  2⤵
  - Program crash
  PID:2404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4032 -ip 4032
1⤵
PID:4424

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4032 -ip 4032
1⤵
PID:2532

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4032-132-0x0000000010000000-0x000000001003B000-memory.dmp

Filesize
236KB

Download
memory/4032-134-0x0000000010000000-0x000000001003B000-memory.dmp

Filesize
236KB

Download
memory/4032-135-0x0000000010000000-0x000000001003B000-memory.dmp

Filesize
236KB

Download
memory/4032-138-0x0000000010000000-0x000000001003B000-memory.dmp

Filesize
236KB

Download