gh0strat | 758f952f987e8652d06f5a2836a3df971e215d31859c6b4f9a33dcb4122e3858

Analysis

max time kernel
170s
max time network
195s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
29/11/2022, 07:41

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General

Target

758f952f987e8652d06f5a2836a3df971e215d31859c6b4f9a33dcb4122e3858.exe
Size

94KB
MD5

13f7745e818e8a4aa4d39c85a86178e0
SHA1

937d96dc78b1627d22fe8467afda07df37dea000
SHA256

758f952f987e8652d06f5a2836a3df971e215d31859c6b4f9a33dcb4122e3858
SHA512

8ef22b5c01dde77197df8e60cb5d8cb61f1a9da360cc37d64d71ab4f18b2b12c928d37ed05d069366072c750d6984cb4d180519e86fd667afbc57c21bd234435
SSDEEP

1536:9FQwQsiEoa2BhmUB4I+yuDg1uUO2mntP2qZNKHuNMaSJETxmIGykRZhcMePmrOa:9FQwQhEOLfuDg0PtOqzKONqsEykRLSeP

Score

10^/10

gh0strat persistence rat upx

Malware Config

Signatures

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/4344-135-0x0000000010000000-0x000000001003B000-memory.dmp	family_gh0strat
behavioral2/memory/4344-134-0x0000000010000000-0x000000001003B000-memory.dmp	family_gh0strat
behavioral2/memory/4344-137-0x0000000010000000-0x000000001003B000-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/4344-132-0x0000000010000000-0x000000001003B000-memory.dmp	upx
behavioral2/memory/4344-135-0x0000000010000000-0x000000001003B000-memory.dmp	upx
behavioral2/memory/4344-134-0x0000000010000000-0x000000001003B000-memory.dmp	upx
behavioral2/memory/4344-137-0x0000000010000000-0x000000001003B000-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	758f952f987e8652d06f5a2836a3df971e215d31859c6b4f9a33dcb4122e3858.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\B117762D = "C:\\Windows\\B117762D\\svchsot.exe"	758f952f987e8652d06f5a2836a3df971e215d31859c6b4f9a33dcb4122e3858.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\B117762D\svchsot.exe	758f952f987e8652d06f5a2836a3df971e215d31859c6b4f9a33dcb4122e3858.exe
File opened for modification	C:\Windows\B117762D\svchsot.exe	758f952f987e8652d06f5a2836a3df971e215d31859c6b4f9a33dcb4122e3858.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3080	4344	WerFault.exe	13
4520	4344	WerFault.exe	13

Runs net.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4344	758f952f987e8652d06f5a2836a3df971e215d31859c6b4f9a33dcb4122e3858.exe
4344	758f952f987e8652d06f5a2836a3df971e215d31859c6b4f9a33dcb4122e3858.exe
4344	758f952f987e8652d06f5a2836a3df971e215d31859c6b4f9a33dcb4122e3858.exe
4344	758f952f987e8652d06f5a2836a3df971e215d31859c6b4f9a33dcb4122e3858.exe
4344	758f952f987e8652d06f5a2836a3df971e215d31859c6b4f9a33dcb4122e3858.exe
4344	758f952f987e8652d06f5a2836a3df971e215d31859c6b4f9a33dcb4122e3858.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4344	758f952f987e8652d06f5a2836a3df971e215d31859c6b4f9a33dcb4122e3858.exe
Token: SeDebugPrivilege	4344	758f952f987e8652d06f5a2836a3df971e215d31859c6b4f9a33dcb4122e3858.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4344 wrote to memory of 4192	4344	758f952f987e8652d06f5a2836a3df971e215d31859c6b4f9a33dcb4122e3858.exe	83
PID 4344 wrote to memory of 4192	4344	758f952f987e8652d06f5a2836a3df971e215d31859c6b4f9a33dcb4122e3858.exe	83
PID 4344 wrote to memory of 4192	4344	758f952f987e8652d06f5a2836a3df971e215d31859c6b4f9a33dcb4122e3858.exe	83
PID 4192 wrote to memory of 220	4192	net.exe	85
PID 4192 wrote to memory of 220	4192	net.exe	85
PID 4192 wrote to memory of 220	4192	net.exe	85

C:\Users\Admin\AppData\Local\Temp\758f952f987e8652d06f5a2836a3df971e215d31859c6b4f9a33dcb4122e3858.exe
"C:\Users\Admin\AppData\Local\Temp\758f952f987e8652d06f5a2836a3df971e215d31859c6b4f9a33dcb4122e3858.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:4344
- C:\Windows\SysWOW64\net.exe
  net start "Task Scheduler"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4192
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 start "Task Scheduler"
    3⤵
    PID:220
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4344 -s 608
  2⤵
  - Program crash
  PID:3080
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4344 -s 720
  2⤵
  - Program crash
  PID:4520

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 196 -p 4344 -ip 4344
1⤵
PID:1424

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4344 -ip 4344
1⤵
PID:3552

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/4344-132-0x0000000010000000-0x000000001003B000-memory.dmp

Filesize
236KB

Download
memory/4344-135-0x0000000010000000-0x000000001003B000-memory.dmp

Filesize
236KB

Download
memory/4344-134-0x0000000010000000-0x000000001003B000-memory.dmp

Filesize
236KB

Download
memory/4344-137-0x0000000010000000-0x000000001003B000-memory.dmp

Filesize
236KB

Download