gh0strat | d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620

Analysis

max time kernel
300s
max time network
341s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
26-11-2022 08:55

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General

Target

d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620.exe
Size

80KB
MD5

db5af4de585d6ae3c04f598d3d3afba0
SHA1

3344f0aa6d3fa708a995939fdb34e2ae1df98e79
SHA256

d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620
SHA512

7fc013a3091f235d3365fcd1a2d98018e62a754df2bf0fa38cb51fc55c94ff6e67cf22a6d402c8f64010b6b64645d1a85e25d276508ac56a86fdea756793c60c
SSDEEP

1536:sFz0LnC0atiq+9Cc73McaTBFb0bJ+oa/xrpnHTlyojsjxNe22JjIHM:sFz90hq+Yc7Hf4oa5r5sojsj+oM

Score

10^/10

gh0strat persistence rat

Malware Config

Signatures

Gh0st RAT payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4136-135-0x0000000010000000-0x0000000010046000-memory.dmp	family_gh0strat
behavioral2/memory/4136-134-0x0000000010000000-0x0000000010046000-memory.dmp	family_gh0strat
behavioral2/memory/4136-138-0x0000000010000000-0x0000000010046000-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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\2F5615AE = "C:\\Windows\\2F5615AE\\svchsot.exe"	d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620.exe

Drops file in System32 directory 1 IoCs

Processes:

d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620.exe

description ioc process

File opened for modification C:\Windows\SysWOW64\Default d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\Default	d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620.exe

Drops file in Windows directory 2 IoCs

Processes:

d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620.exe

description	ioc	process
File opened for modification	C:\Windows\2F5615AE\svchsot.exe	d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620.exe
File created	C:\Windows\2F5615AE\svchsot.exe	d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620.exe

pid	process
4136	d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620.exe
4136	d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620.exe
4136	d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620.exe
4136	d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620.exe
4136	d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620.exe
4136	d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620.exe
4136	d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620.exe
4136	d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620.exe

description	pid	process
Token: SeDebugPrivilege	4136	d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620.exe
Token: SeDebugPrivilege	4136	d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620.exenet.exe

description	pid	process	target process
PID 4136 wrote to memory of 4420	4136	d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620.exe	net.exe
PID 4136 wrote to memory of 4420	4136	d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620.exe	net.exe
PID 4136 wrote to memory of 4420	4136	d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620.exe	net.exe
PID 4420 wrote to memory of 2940	4420	net.exe	net1.exe
PID 4420 wrote to memory of 2940	4420	net.exe	net1.exe
PID 4420 wrote to memory of 2940	4420	net.exe	net1.exe

C:\Users\Admin\AppData\Local\Temp\d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620.exe
"C:\Users\Admin\AppData\Local\Temp\d8d838a7b8edbc42604043cce209bf62223888e6bc98b75d1adc350858c53620.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4136

C:\Windows\SysWOW64\net.exe
net start "Task Scheduler"
2⤵
- Suspicious use of WriteProcessMemory
PID:4420

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 start "Task Scheduler"
3⤵
PID:2940

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

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Downloads

memory/2940-137-0x0000000000000000-mapping.dmp

Download
memory/4136-132-0x0000000010000000-0x0000000010046000-memory.dmp

Filesize
280KB

Download
memory/4136-135-0x0000000010000000-0x0000000010046000-memory.dmp

Filesize
280KB

Download
memory/4136-134-0x0000000010000000-0x0000000010046000-memory.dmp

Filesize
280KB

Download
memory/4136-138-0x0000000010000000-0x0000000010046000-memory.dmp

Filesize
280KB

Download
memory/4420-136-0x0000000000000000-mapping.dmp

Download