gh0strat | 46dd4d9f971a6fea243c1d125e58e015b131b8c5b5b66b367090eb3c21e74dbc

Analysis

max time kernel
90s
max time network
110s
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, 14:49

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General

Target

46dd4d9f971a6fea243c1d125e58e015b131b8c5b5b66b367090eb3c21e74dbc.exe
Size

145KB
MD5

7b387d22a2b588ba120c3c63e025839e
SHA1

a6c522d29369bf37d475422ac7795b2bd0758e06
SHA256

46dd4d9f971a6fea243c1d125e58e015b131b8c5b5b66b367090eb3c21e74dbc
SHA512

2a37f1a510c0ba266ab4229ee5bd99cbb9d16b362fdad636c4e463886d9746640ad4cc1d79da353803b43214dae9d96a8e93aeb984e41d70877d0d3c7a8b3b92
SSDEEP

3072:lFfGQhEOLfuDg0PtOqzKONqsEykRLSewpvyNPXdvpkC:lQOFStZzKqqsE6eV

Score

10^/10

gh0strat persistence rat upx

Malware Config

Signatures

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/4972-134-0x0000000010000000-0x000000001003B000-memory.dmp	family_gh0strat
behavioral2/memory/4972-135-0x0000000010000000-0x000000001003B000-memory.dmp	family_gh0strat
behavioral2/memory/4972-138-0x0000000010000000-0x000000001003B000-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/4972-132-0x0000000010000000-0x000000001003B000-memory.dmp	upx
behavioral2/memory/4972-134-0x0000000010000000-0x000000001003B000-memory.dmp	upx
behavioral2/memory/4972-135-0x0000000010000000-0x000000001003B000-memory.dmp	upx
behavioral2/memory/4972-138-0x0000000010000000-0x000000001003B000-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	46dd4d9f971a6fea243c1d125e58e015b131b8c5b5b66b367090eb3c21e74dbc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DF6373EF = "C:\\Windows\\DF6373EF\\svchsot.exe"	46dd4d9f971a6fea243c1d125e58e015b131b8c5b5b66b367090eb3c21e74dbc.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\DF6373EF\svchsot.exe	46dd4d9f971a6fea243c1d125e58e015b131b8c5b5b66b367090eb3c21e74dbc.exe
File opened for modification	C:\Windows\DF6373EF\svchsot.exe	46dd4d9f971a6fea243c1d125e58e015b131b8c5b5b66b367090eb3c21e74dbc.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4016	4972	WerFault.exe	79
3556	4972	WerFault.exe	79

Runs net.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4972	46dd4d9f971a6fea243c1d125e58e015b131b8c5b5b66b367090eb3c21e74dbc.exe
4972	46dd4d9f971a6fea243c1d125e58e015b131b8c5b5b66b367090eb3c21e74dbc.exe
4972	46dd4d9f971a6fea243c1d125e58e015b131b8c5b5b66b367090eb3c21e74dbc.exe
4972	46dd4d9f971a6fea243c1d125e58e015b131b8c5b5b66b367090eb3c21e74dbc.exe
4972	46dd4d9f971a6fea243c1d125e58e015b131b8c5b5b66b367090eb3c21e74dbc.exe
4972	46dd4d9f971a6fea243c1d125e58e015b131b8c5b5b66b367090eb3c21e74dbc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4972	46dd4d9f971a6fea243c1d125e58e015b131b8c5b5b66b367090eb3c21e74dbc.exe
Token: SeDebugPrivilege	4972	46dd4d9f971a6fea243c1d125e58e015b131b8c5b5b66b367090eb3c21e74dbc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4972 wrote to memory of 2160	4972	46dd4d9f971a6fea243c1d125e58e015b131b8c5b5b66b367090eb3c21e74dbc.exe	82
PID 4972 wrote to memory of 2160	4972	46dd4d9f971a6fea243c1d125e58e015b131b8c5b5b66b367090eb3c21e74dbc.exe	82
PID 4972 wrote to memory of 2160	4972	46dd4d9f971a6fea243c1d125e58e015b131b8c5b5b66b367090eb3c21e74dbc.exe	82
PID 2160 wrote to memory of 3604	2160	net.exe	84
PID 2160 wrote to memory of 3604	2160	net.exe	84
PID 2160 wrote to memory of 3604	2160	net.exe	84

C:\Users\Admin\AppData\Local\Temp\46dd4d9f971a6fea243c1d125e58e015b131b8c5b5b66b367090eb3c21e74dbc.exe
"C:\Users\Admin\AppData\Local\Temp\46dd4d9f971a6fea243c1d125e58e015b131b8c5b5b66b367090eb3c21e74dbc.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:4972
- C:\Windows\SysWOW64\net.exe
  net start "Task Scheduler"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2160
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 start "Task Scheduler"
    3⤵
    PID:3604
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4972 -s 604
  2⤵
  - Program crash
  PID:4016
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4972 -s 260
  2⤵
  - Program crash
  PID:3556

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4972 -ip 4972
1⤵
PID:1220

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4972 -ip 4972
1⤵
PID:1964

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/4972-132-0x0000000010000000-0x000000001003B000-memory.dmp

Filesize
236KB

Download
memory/4972-134-0x0000000010000000-0x000000001003B000-memory.dmp

Filesize
236KB

Download
memory/4972-135-0x0000000010000000-0x000000001003B000-memory.dmp

Filesize
236KB

Download
memory/4972-138-0x0000000010000000-0x000000001003B000-memory.dmp

Filesize
236KB

Download