gh0strat | 0498548ac7c80f259147b213b9859b347e7ced21c52dd66b8316740d7418bac7

Analysis

max time kernel
150s
max time network
125s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
03/11/2023, 04:02

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General

Target

NEAS.0eabc5970b134f3e380c6bd13dc138f0_JC.exe
Size

286KB
MD5

0eabc5970b134f3e380c6bd13dc138f0
SHA1

0d14bcd1d0c264820089465cc40af13c9fef8809
SHA256

0498548ac7c80f259147b213b9859b347e7ced21c52dd66b8316740d7418bac7
SHA512

c1e577e57f2ef5b26f546350da1ba3f751410e6d64f4ca4a60bd17217847355d59d02e995127923086120416a43235f27ee43abf30bb70b0ae20621cc8b4fc28
SSDEEP

6144:LGzRxSVtp0l6whGfsKR+zkBpTaa5tJH3h:6t0VPFfsKAkrbPlR

Score

10^/10

gh0strat persistence rat upx

Malware Config

Signatures

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral1/memory/2580-11-0x0000000000400000-0x00000000004F0000-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
2580	(null)0.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2044-0-0x0000000000400000-0x00000000004F0000-memory.dmp	upx
behavioral1/files/0x000b000000012267-5.dat	upx
behavioral1/memory/2580-11-0x0000000000400000-0x00000000004F0000-memory.dmp	upx
behavioral1/files/0x000b000000012267-9.dat	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\\NEAS.0eabc5970b134f3e380c6bd13dc138f0_JC.exe"	NEAS.0eabc5970b134f3e380c6bd13dc138f0_JC.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Windows\BJ.exe	NEAS.0eabc5970b134f3e380c6bd13dc138f0_JC.exe
File created	\??\c:\Windows\BJ.exe	NEAS.0eabc5970b134f3e380c6bd13dc138f0_JC.exe
File created	\??\c:\Windows\(null)0.exe	NEAS.0eabc5970b134f3e380c6bd13dc138f0_JC.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2044 wrote to memory of 2580	2044	NEAS.0eabc5970b134f3e380c6bd13dc138f0_JC.exe	28
PID 2044 wrote to memory of 2580	2044	NEAS.0eabc5970b134f3e380c6bd13dc138f0_JC.exe	28
PID 2044 wrote to memory of 2580	2044	NEAS.0eabc5970b134f3e380c6bd13dc138f0_JC.exe	28
PID 2044 wrote to memory of 2580	2044	NEAS.0eabc5970b134f3e380c6bd13dc138f0_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\NEAS.0eabc5970b134f3e380c6bd13dc138f0_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.0eabc5970b134f3e380c6bd13dc138f0_JC.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2044
- \??\c:\Windows\(null)0.exe
  c:\Windows\(null)0.exe
  2⤵
  - Executes dropped EXE
  PID:2580

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
286KB

MD5
0eabc5970b134f3e380c6bd13dc138f0

SHA1
0d14bcd1d0c264820089465cc40af13c9fef8809

SHA256
0498548ac7c80f259147b213b9859b347e7ced21c52dd66b8316740d7418bac7

SHA512
c1e577e57f2ef5b26f546350da1ba3f751410e6d64f4ca4a60bd17217847355d59d02e995127923086120416a43235f27ee43abf30bb70b0ae20621cc8b4fc28

Download Submit
C:\Windows\(null)0.exe

Filesize
286KB

MD5
0eabc5970b134f3e380c6bd13dc138f0

SHA1
0d14bcd1d0c264820089465cc40af13c9fef8809

SHA256
0498548ac7c80f259147b213b9859b347e7ced21c52dd66b8316740d7418bac7

SHA512
c1e577e57f2ef5b26f546350da1ba3f751410e6d64f4ca4a60bd17217847355d59d02e995127923086120416a43235f27ee43abf30bb70b0ae20621cc8b4fc28

Download Submit
memory/2044-0-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/2044-8-0x0000000002800000-0x00000000028F0000-memory.dmp

Filesize
960KB

Download
memory/2580-11-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads