gh0strat | 29f69d13328efbd0dac5b0a3d2c8d44230a707429dba5bded6a646b16d8649fb

Analysis

max time kernel
150s
max time network
117s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
24/12/2023, 23:06

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General

Target

1811e461767ca3de358ef321e0a864d8.exe
Size

741KB
MD5

1811e461767ca3de358ef321e0a864d8
SHA1

881915df35a7a83102632552138f8ef718d1b04a
SHA256

29f69d13328efbd0dac5b0a3d2c8d44230a707429dba5bded6a646b16d8649fb
SHA512

8cc0362040a8a1c43822951e0f2b728be4cd2a695c955c20e24ddf3a56a18d8651ce8cbe602750da81c70d15f7fbcb43b140312ae4016be59424e86f653a43a5
SSDEEP

12288:jt0VPFfsKAkrbPlXhHANUTNqmkTHANUTNQ:SFksb1AmkA

Score

10^/10

gh0strat persistence rat upx

Malware Config

Signatures

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral1/memory/2032-10-0x0000000000400000-0x00000000004F1000-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

Executes dropped EXE 1 IoCs

pid	Process
2032	(null)0.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2032-10-0x0000000000400000-0x00000000004F1000-memory.dmp	upx
behavioral1/files/0x000d00000001232d-9.dat	upx
behavioral1/memory/2688-0-0x0000000000400000-0x00000000004F1000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Kris = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1811e461767ca3de358ef321e0a864d8.exe"	1811e461767ca3de358ef321e0a864d8.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	\??\c:\Windows\BJ.exe	1811e461767ca3de358ef321e0a864d8.exe
File opened for modification	\??\c:\Windows\BJ.exe	1811e461767ca3de358ef321e0a864d8.exe
File created	\??\c:\Windows\(null)0.exe	1811e461767ca3de358ef321e0a864d8.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2688 wrote to memory of 2032	2688	1811e461767ca3de358ef321e0a864d8.exe	28
PID 2688 wrote to memory of 2032	2688	1811e461767ca3de358ef321e0a864d8.exe	28
PID 2688 wrote to memory of 2032	2688	1811e461767ca3de358ef321e0a864d8.exe	28
PID 2688 wrote to memory of 2032	2688	1811e461767ca3de358ef321e0a864d8.exe	28

C:\Users\Admin\AppData\Local\Temp\1811e461767ca3de358ef321e0a864d8.exe
"C:\Users\Admin\AppData\Local\Temp\1811e461767ca3de358ef321e0a864d8.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2688
- \??\c:\Windows\(null)0.exe
  c:\Windows\(null)0.exe
  2⤵
  - Executes dropped EXE
  PID:2032

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\(null)0.exe

Filesize
382KB

MD5
50e55af239ad382294020f3539f874da

SHA1
56182b08bcb8cd164300d6048858c4606a1dbf9b

SHA256
5ce42b29fb5ec8c6bd7ab5ffc8767f723030bbefdb0bfefdb924007d309a5d15

SHA512
5dc23236deea09517910fe9ef631888cc9bb3bd639bfd62967ce9236a49c85dbad75eb15b68193a64bc528c1b6702e51e6a3279ade0811e8df1c13c0483a3b8d

Download Submit
memory/2032-10-0x0000000000400000-0x00000000004F1000-memory.dmp

Filesize
964KB

Download
memory/2688-11-0x00000000026A0000-0x0000000002791000-memory.dmp

Filesize
964KB

Download
memory/2688-0-0x0000000000400000-0x00000000004F1000-memory.dmp

Filesize
964KB

Download

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads