gh0strat | b6b1a3da7e02d46483fa7db81258c82a8ebf9d32e20d89df02d9a7e49b7b08de

Analysis

max time kernel
48s
max time network
48s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
23-11-2022 13:17

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General

Target

b6b1a3da7e02d46483fa7db81258c82a8ebf9d32e20d89df02d9a7e49b7b08de.exe
Size

87KB
MD5

09680e8bd72737570d988c0bd416f62e
SHA1

e2cc81d9ddb663057aed8176c452ff01e4f6be9f
SHA256

b6b1a3da7e02d46483fa7db81258c82a8ebf9d32e20d89df02d9a7e49b7b08de
SHA512

33d53e84bcc38f42e928dc715b720f927e6366f80fe711abd8a47eb1558df06fab317b4217a721943192f09e5a272727fa30c3fa8bb5b2cfa481921b218a0cb0
SSDEEP

1536:jDIMiE5fnRXNuYxUrPpH8bT4+foao4t+p4UT4jfpNJEUb2thHxc9a:j0UTShcb7opsMnTWfH23xoa

Score

10^/10

gh0strat persistence rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1792-57-0x0000000010000000-0x0000000010046000-memory.dmp	family_gh0strat
behavioral1/memory/1792-63-0x0000000010000000-0x0000000010046000-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:

b6b1a3da7e02d46483fa7db81258c82a8ebf9d32e20d89df02d9a7e49b7b08de.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	b6b1a3da7e02d46483fa7db81258c82a8ebf9d32e20d89df02d9a7e49b7b08de.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\7B673E53 = "C:\\Windows\\7B673E53\\svchsot.exe"	b6b1a3da7e02d46483fa7db81258c82a8ebf9d32e20d89df02d9a7e49b7b08de.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

b6b1a3da7e02d46483fa7db81258c82a8ebf9d32e20d89df02d9a7e49b7b08de.exe

pid	process
1792	b6b1a3da7e02d46483fa7db81258c82a8ebf9d32e20d89df02d9a7e49b7b08de.exe
1792	b6b1a3da7e02d46483fa7db81258c82a8ebf9d32e20d89df02d9a7e49b7b08de.exe
1792	b6b1a3da7e02d46483fa7db81258c82a8ebf9d32e20d89df02d9a7e49b7b08de.exe
1792	b6b1a3da7e02d46483fa7db81258c82a8ebf9d32e20d89df02d9a7e49b7b08de.exe

Suspicious behavior: RenamesItself 1 IoCs

Processes:

b6b1a3da7e02d46483fa7db81258c82a8ebf9d32e20d89df02d9a7e49b7b08de.exe

pid process

1792 b6b1a3da7e02d46483fa7db81258c82a8ebf9d32e20d89df02d9a7e49b7b08de.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

b6b1a3da7e02d46483fa7db81258c82a8ebf9d32e20d89df02d9a7e49b7b08de.exe

description pid process

Token: SeDebugPrivilege 1792 b6b1a3da7e02d46483fa7db81258c82a8ebf9d32e20d89df02d9a7e49b7b08de.exe

description	pid	process
Token: SeDebugPrivilege	1792	b6b1a3da7e02d46483fa7db81258c82a8ebf9d32e20d89df02d9a7e49b7b08de.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

b6b1a3da7e02d46483fa7db81258c82a8ebf9d32e20d89df02d9a7e49b7b08de.exenet.exe

description	pid	process	target process
PID 1792 wrote to memory of 1924	1792	b6b1a3da7e02d46483fa7db81258c82a8ebf9d32e20d89df02d9a7e49b7b08de.exe	net.exe
PID 1792 wrote to memory of 1924	1792	b6b1a3da7e02d46483fa7db81258c82a8ebf9d32e20d89df02d9a7e49b7b08de.exe	net.exe
PID 1792 wrote to memory of 1924	1792	b6b1a3da7e02d46483fa7db81258c82a8ebf9d32e20d89df02d9a7e49b7b08de.exe	net.exe
PID 1792 wrote to memory of 1924	1792	b6b1a3da7e02d46483fa7db81258c82a8ebf9d32e20d89df02d9a7e49b7b08de.exe	net.exe
PID 1924 wrote to memory of 760	1924	net.exe	net1.exe
PID 1924 wrote to memory of 760	1924	net.exe	net1.exe
PID 1924 wrote to memory of 760	1924	net.exe	net1.exe
PID 1924 wrote to memory of 760	1924	net.exe	net1.exe

C:\Users\Admin\AppData\Local\Temp\b6b1a3da7e02d46483fa7db81258c82a8ebf9d32e20d89df02d9a7e49b7b08de.exe
"C:\Users\Admin\AppData\Local\Temp\b6b1a3da7e02d46483fa7db81258c82a8ebf9d32e20d89df02d9a7e49b7b08de.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1792
- C:\Windows\SysWOW64\net.exe
  net start "Task Scheduler"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1924
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 start "Task Scheduler"
    3⤵
    PID:760

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/760-60-0x0000000000000000-mapping.dmp

Download
memory/1792-54-0x0000000074E01000-0x0000000074E03000-memory.dmp

Filesize
8KB

Download
memory/1792-55-0x0000000010000000-0x0000000010046000-memory.dmp

Filesize
280KB

Download
memory/1792-57-0x0000000010000000-0x0000000010046000-memory.dmp

Filesize
280KB

Download
memory/1792-61-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/1792-62-0x0000000000020000-0x000000000002A000-memory.dmp

Filesize
40KB

Download
memory/1792-63-0x0000000010000000-0x0000000010046000-memory.dmp

Filesize
280KB

Download
memory/1792-64-0x0000000000020000-0x000000000002A000-memory.dmp

Filesize
40KB

Download
memory/1924-59-0x0000000000000000-mapping.dmp

Download