gh0strat | 41fce348a18427cb5c9fe1944e1e180b3eeaa4583ab62f888d5110d488c8939b

Analysis

max time kernel
150s
max time network
124s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
30-12-2023 09:36

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General

Target

14a7a1f22e7c7c6adac419e6629316bd.exe
Size

933KB
MD5

14a7a1f22e7c7c6adac419e6629316bd
SHA1

9f5692144e061cac945fa1cbec37455aa9ecbd4f
SHA256

41fce348a18427cb5c9fe1944e1e180b3eeaa4583ab62f888d5110d488c8939b
SHA512

9563b506c457e7d5d70769b86d5492743c559d78e0a08f716def0bec0ecd032c57767d9c6a85dcaa01496bebb8cc634153380cf4f1fa6c2179d9c8e540dcd651
SSDEEP

12288:jt0VPFfsKAkrbPlXhHANUTNqm0HANUTN8JZ:SFksb1AmTJZ

Score

10^/10

gh0strat persistence rat upx

Malware Config

Signatures

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral1/memory/2940-12-0x0000000000400000-0x00000000004F1000-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
2940	(null)0.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1988-0-0x0000000000400000-0x00000000004F1000-memory.dmp	upx
behavioral1/files/0x000900000001225c-5.dat	upx
behavioral1/memory/1988-6-0x0000000002600000-0x00000000026F1000-memory.dmp	upx
behavioral1/memory/2940-11-0x0000000000400000-0x00000000004F1000-memory.dmp	upx
behavioral1/memory/2940-12-0x0000000000400000-0x00000000004F1000-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\\14a7a1f22e7c7c6adac419e6629316bd.exe"	14a7a1f22e7c7c6adac419e6629316bd.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	\??\c:\Windows\(null)0.exe	14a7a1f22e7c7c6adac419e6629316bd.exe
File created	\??\c:\Windows\BJ.exe	14a7a1f22e7c7c6adac419e6629316bd.exe
File opened for modification	\??\c:\Windows\BJ.exe	14a7a1f22e7c7c6adac419e6629316bd.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1988 wrote to memory of 2940	1988	14a7a1f22e7c7c6adac419e6629316bd.exe	28
PID 1988 wrote to memory of 2940	1988	14a7a1f22e7c7c6adac419e6629316bd.exe	28
PID 1988 wrote to memory of 2940	1988	14a7a1f22e7c7c6adac419e6629316bd.exe	28
PID 1988 wrote to memory of 2940	1988	14a7a1f22e7c7c6adac419e6629316bd.exe	28

C:\Users\Admin\AppData\Local\Temp\14a7a1f22e7c7c6adac419e6629316bd.exe
"C:\Users\Admin\AppData\Local\Temp\14a7a1f22e7c7c6adac419e6629316bd.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1988
- \??\c:\Windows\(null)0.exe
  c:\Windows\(null)0.exe
  2⤵
  - Executes dropped EXE
  PID:2940

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
933KB

MD5
14a7a1f22e7c7c6adac419e6629316bd

SHA1
9f5692144e061cac945fa1cbec37455aa9ecbd4f

SHA256
41fce348a18427cb5c9fe1944e1e180b3eeaa4583ab62f888d5110d488c8939b

SHA512
9563b506c457e7d5d70769b86d5492743c559d78e0a08f716def0bec0ecd032c57767d9c6a85dcaa01496bebb8cc634153380cf4f1fa6c2179d9c8e540dcd651

Download Submit
memory/1988-0-0x0000000000400000-0x00000000004F1000-memory.dmp

Filesize
964KB

Download
memory/1988-6-0x0000000002600000-0x00000000026F1000-memory.dmp

Filesize
964KB

Download
memory/1988-15-0x0000000002600000-0x00000000026F1000-memory.dmp

Filesize
964KB

Download
memory/2940-11-0x0000000000400000-0x00000000004F1000-memory.dmp

Filesize
964KB

Download
memory/2940-12-0x0000000000400000-0x00000000004F1000-memory.dmp

Filesize
964KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads