gh0strat | 62521d93489fc2cd30f867d60b69f1fe621cf4cd22679c61221e6fe58992848b

Analysis

max time kernel
173s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
29/11/2022, 14:04

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General

Target

62521d93489fc2cd30f867d60b69f1fe621cf4cd22679c61221e6fe58992848b.exe
Size

384KB
MD5

a8355fb3686e23bfaa33d2a300f997e8
SHA1

8291c5621725768351e4e10bba97b852901aaef0
SHA256

62521d93489fc2cd30f867d60b69f1fe621cf4cd22679c61221e6fe58992848b
SHA512

7c7f8fad9d6540d149cb58d41be76c459e62c60da7c4660a221ab1496b1f4687493b736f13d58ab5008f0cfec042c39e3dd5fe2e997421f4091be228c5e776c0
SSDEEP

6144:QGzRxSVtp0l6whGfsKR+zkBpTaa5tJH7/:jt0VPFfsKAkrbPl7/

Score

10^/10

gh0strat persistence rat upx

Malware Config

Signatures

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral1/memory/2036-58-0x0000000000400000-0x00000000004F1000-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
2036	(null)0.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0008000000015622-56.dat	upx
behavioral1/memory/2036-58-0x0000000000400000-0x00000000004F1000-memory.dmp	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	62521d93489fc2cd30f867d60b69f1fe621cf4cd22679c61221e6fe58992848b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Kris = "C:\\Users\\Admin\\AppData\\Local\\Temp\\62521d93489fc2cd30f867d60b69f1fe621cf4cd22679c61221e6fe58992848b.exe"	62521d93489fc2cd30f867d60b69f1fe621cf4cd22679c61221e6fe58992848b.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	\??\c:\Windows\BJ.exe	62521d93489fc2cd30f867d60b69f1fe621cf4cd22679c61221e6fe58992848b.exe
File opened for modification	\??\c:\Windows\BJ.exe	62521d93489fc2cd30f867d60b69f1fe621cf4cd22679c61221e6fe58992848b.exe
File created	\??\c:\Windows\(null)0.exe	62521d93489fc2cd30f867d60b69f1fe621cf4cd22679c61221e6fe58992848b.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 908 wrote to memory of 2036	908	62521d93489fc2cd30f867d60b69f1fe621cf4cd22679c61221e6fe58992848b.exe	27
PID 908 wrote to memory of 2036	908	62521d93489fc2cd30f867d60b69f1fe621cf4cd22679c61221e6fe58992848b.exe	27
PID 908 wrote to memory of 2036	908	62521d93489fc2cd30f867d60b69f1fe621cf4cd22679c61221e6fe58992848b.exe	27
PID 908 wrote to memory of 2036	908	62521d93489fc2cd30f867d60b69f1fe621cf4cd22679c61221e6fe58992848b.exe	27

C:\Users\Admin\AppData\Local\Temp\62521d93489fc2cd30f867d60b69f1fe621cf4cd22679c61221e6fe58992848b.exe
"C:\Users\Admin\AppData\Local\Temp\62521d93489fc2cd30f867d60b69f1fe621cf4cd22679c61221e6fe58992848b.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:908
- \??\c:\Windows\(null)0.exe
  c:\Windows\(null)0.exe
  2⤵
  - Executes dropped EXE
  PID:2036

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
384KB

MD5
6e3268f6be4621fed0cc4303110f8f50

SHA1
a061a21be1ac05609df9f4db3204ad9c688d8a07

SHA256
7a647e863ae8943a556395491fe4d7e4215f2a7109b2882b9451b7655d80e9e6

SHA512
75d2ab5f4bfc8f9665639701d123ac436a760d2bf3d80ff18dec3188276953e880fc40ebe5b31162c01b57ba8330a2c815ba4216397c1adde45ad78ac9b289c6

Download Submit
memory/908-54-0x0000000075131000-0x0000000075133000-memory.dmp

Filesize
8KB

Download
memory/908-59-0x0000000002730000-0x0000000002821000-memory.dmp

Filesize
964KB

Download
memory/2036-58-0x0000000000400000-0x00000000004F1000-memory.dmp

Filesize
964KB

Download