gh0strat | 5f4f11febfe718029588f8f714d42c8550c8284527b877d40b198d2f03ec0588

Analysis

max time kernel
152s
max time network
36s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
29/11/2022, 14:05

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General

Target

5f4f11febfe718029588f8f714d42c8550c8284527b877d40b198d2f03ec0588.exe
Size

241KB
MD5

372ebb9f8c8b5ee73527c22de0cd6ff2
SHA1

0c670d0100c1c0a534bf9ecde837d8f154d70757
SHA256

5f4f11febfe718029588f8f714d42c8550c8284527b877d40b198d2f03ec0588
SHA512

c991d56c4122eae2046a8882aca3adabaf871e36d547c176bfb5915ecfdbdf1614cce1926d01d0cc11e7f492db3793e9e16985036f4786fd8241ff8d5a1364ab
SSDEEP

6144:QGzRxSVtp0l6whGfsKR+zkBpTaa5tJHXH:jt0VPFfsKAkrbPlXH

Score

10^/10

gh0strat persistence rat upx

Malware Config

Signatures

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral1/memory/1976-55-0x0000000000400000-0x00000000004F1000-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
1956	(null)0.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1976-55-0x0000000000400000-0x00000000004F1000-memory.dmp	upx
behavioral1/files/0x000a00000001231e-57.dat	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	5f4f11febfe718029588f8f714d42c8550c8284527b877d40b198d2f03ec0588.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Kris = "C:\\Users\\Admin\\AppData\\Local\\Temp\\5f4f11febfe718029588f8f714d42c8550c8284527b877d40b198d2f03ec0588.exe"	5f4f11febfe718029588f8f714d42c8550c8284527b877d40b198d2f03ec0588.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Windows\BJ.exe	5f4f11febfe718029588f8f714d42c8550c8284527b877d40b198d2f03ec0588.exe
File created	\??\c:\Windows\BJ.exe	5f4f11febfe718029588f8f714d42c8550c8284527b877d40b198d2f03ec0588.exe
File created	\??\c:\Windows\(null)0.exe	5f4f11febfe718029588f8f714d42c8550c8284527b877d40b198d2f03ec0588.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1976 wrote to memory of 1956	1976	5f4f11febfe718029588f8f714d42c8550c8284527b877d40b198d2f03ec0588.exe	28
PID 1976 wrote to memory of 1956	1976	5f4f11febfe718029588f8f714d42c8550c8284527b877d40b198d2f03ec0588.exe	28
PID 1976 wrote to memory of 1956	1976	5f4f11febfe718029588f8f714d42c8550c8284527b877d40b198d2f03ec0588.exe	28
PID 1976 wrote to memory of 1956	1976	5f4f11febfe718029588f8f714d42c8550c8284527b877d40b198d2f03ec0588.exe	28

C:\Users\Admin\AppData\Local\Temp\5f4f11febfe718029588f8f714d42c8550c8284527b877d40b198d2f03ec0588.exe
"C:\Users\Admin\AppData\Local\Temp\5f4f11febfe718029588f8f714d42c8550c8284527b877d40b198d2f03ec0588.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1976
- \??\c:\Windows\(null)0.exe
  c:\Windows\(null)0.exe
  2⤵
  - Executes dropped EXE
  PID:1956

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

C:\Windows\(null)0.exe

Filesize
241KB

MD5
372ebb9f8c8b5ee73527c22de0cd6ff2

SHA1
0c670d0100c1c0a534bf9ecde837d8f154d70757

SHA256
5f4f11febfe718029588f8f714d42c8550c8284527b877d40b198d2f03ec0588

SHA512
c991d56c4122eae2046a8882aca3adabaf871e36d547c176bfb5915ecfdbdf1614cce1926d01d0cc11e7f492db3793e9e16985036f4786fd8241ff8d5a1364ab

Download Submit
memory/1976-54-0x0000000074D81000-0x0000000074D83000-memory.dmp

Filesize
8KB

Download
memory/1976-55-0x0000000000400000-0x00000000004F1000-memory.dmp

Filesize
964KB

Download
memory/1976-59-0x0000000002630000-0x0000000002721000-memory.dmp

Filesize
964KB

Download