gh0strat | bd919e1f8b83a02e64622a5f6a583067d661647eb346f6bf89b4add64c061d75

General

Target

bd919e1f8b83a02e64622a5f6a583067d661647eb346f6bf89b4add64c061d75.exe
Size

180KB
MD5

68e99b7e1804de0056b87b810faf896e
SHA1

78b4f323eadd796bc85610926308db82ff1c24b1
SHA256

bd919e1f8b83a02e64622a5f6a583067d661647eb346f6bf89b4add64c061d75
SHA512

ecbf85b332c4b9971e0dd45fafda63b467b4790b204cc6c16887f7fc4a65f89160df4f3bc72baee078f9139c9ccbea0e15ee3a555df58b4408cf85adeef56b5d
SSDEEP

3072:LwI2iWTWP6M1DA57yZU6OnJLMML7grZmvl8EumtZmvl8EHHdY:L4iPCMqMZ0JQMninW

Score

10^/10

gh0strat rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/memory/1372-70-0x0000000006B00000-0x0000000006B4E000-memory.dmp	family_gh0strat
behavioral1/memory/1372-71-0x0000000010000000-0x000000001001E000-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
Downloads MZ/PE file
Modifies RDP port number used by Windows 1 TTPs

Remote Desktop Protocol
T1076

Executes dropped EXE 2 IoCs

pid	Process
1372	meproaz.exe
284	Time.exe

Loads dropped DLL 4 IoCs

pid	Process
1896	cmd.exe
1896	cmd.exe
1564	cmd.exe
1564	cmd.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	meproaz.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	meproaz.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
820	bd919e1f8b83a02e64622a5f6a583067d661647eb346f6bf89b4add64c061d75.exe
820	bd919e1f8b83a02e64622a5f6a583067d661647eb346f6bf89b4add64c061d75.exe
284	Time.exe
1372	meproaz.exe
1372	meproaz.exe
1372	meproaz.exe
1372	meproaz.exe
1372	meproaz.exe
1372	meproaz.exe
1372	meproaz.exe
1372	meproaz.exe
1372	meproaz.exe
1372	meproaz.exe
1372	meproaz.exe
1372	meproaz.exe
1372	meproaz.exe
1372	meproaz.exe
1372	meproaz.exe
1372	meproaz.exe
1372	meproaz.exe
1372	meproaz.exe
1372	meproaz.exe
1372	meproaz.exe
1372	meproaz.exe
1372	meproaz.exe
1372	meproaz.exe
1372	meproaz.exe
1372	meproaz.exe
1372	meproaz.exe
1372	meproaz.exe
1372	meproaz.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	284	Time.exe
Token: SeDebugPrivilege	284	Time.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1372	meproaz.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 820 wrote to memory of 1896	820	bd919e1f8b83a02e64622a5f6a583067d661647eb346f6bf89b4add64c061d75.exe	29
PID 820 wrote to memory of 1896	820	bd919e1f8b83a02e64622a5f6a583067d661647eb346f6bf89b4add64c061d75.exe	29
PID 820 wrote to memory of 1896	820	bd919e1f8b83a02e64622a5f6a583067d661647eb346f6bf89b4add64c061d75.exe	29
PID 820 wrote to memory of 1896	820	bd919e1f8b83a02e64622a5f6a583067d661647eb346f6bf89b4add64c061d75.exe	29
PID 1896 wrote to memory of 1372	1896	cmd.exe	31
PID 1896 wrote to memory of 1372	1896	cmd.exe	31
PID 1896 wrote to memory of 1372	1896	cmd.exe	31
PID 1896 wrote to memory of 1372	1896	cmd.exe	31
PID 820 wrote to memory of 1564	820	bd919e1f8b83a02e64622a5f6a583067d661647eb346f6bf89b4add64c061d75.exe	32
PID 820 wrote to memory of 1564	820	bd919e1f8b83a02e64622a5f6a583067d661647eb346f6bf89b4add64c061d75.exe	32
PID 820 wrote to memory of 1564	820	bd919e1f8b83a02e64622a5f6a583067d661647eb346f6bf89b4add64c061d75.exe	32
PID 820 wrote to memory of 1564	820	bd919e1f8b83a02e64622a5f6a583067d661647eb346f6bf89b4add64c061d75.exe	32
PID 1564 wrote to memory of 284	1564	cmd.exe	34
PID 1564 wrote to memory of 284	1564	cmd.exe	34
PID 1564 wrote to memory of 284	1564	cmd.exe	34
PID 1564 wrote to memory of 284	1564	cmd.exe	34

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\bd919e1f8b83a02e64622a5f6a583067d661647eb346f6bf89b4add64c061d75.exe
"C:\Users\Admin\AppData\Local\Temp\bd919e1f8b83a02e64622a5f6a583067d661647eb346f6bf89b4add64c061d75.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:820
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c start C:\Users\Public\LZS\meproaz.exe
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1896
- - C:\Users\Public\LZS\meproaz.exe
    C:\Users\Public\LZS\meproaz.exe
    3⤵
    - Executes dropped EXE
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of SetWindowsHookEx
    PID:1372
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c start C:\Users\Public\LZS\Time.exe
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1564
- - C:\Users\Public\LZS\Time.exe
    C:\Users\Public\LZS\Time.exe
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:284

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

1

T1082

Lateral Movement

Remote Desktop Protocol

1

T1076

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Public\LZS\Time.exe

Filesize
212KB

MD5
f98b74dee1bf916aa4575d78c7b4366c

SHA1
f136bcae6475bfd247762549bf428b12f251bc13

SHA256
4c12bb625c4c1c1c7684588e7838f59836f6e8009d932b099e90e1a7e98c0901

SHA512
ea626e850cfd95866abf812f9ae6fd2fa541483e905b3ec6d93e6d78c31d70a0c91a761a0e637cb2652667573ac3c7928ecd5eabab0f21e81e70e5a9f7aab227

Download Submit
C:\Users\Public\LZS\Time.exe

Filesize
212KB

MD5
f98b74dee1bf916aa4575d78c7b4366c

SHA1
f136bcae6475bfd247762549bf428b12f251bc13

SHA256
4c12bb625c4c1c1c7684588e7838f59836f6e8009d932b099e90e1a7e98c0901

SHA512
ea626e850cfd95866abf812f9ae6fd2fa541483e905b3ec6d93e6d78c31d70a0c91a761a0e637cb2652667573ac3c7928ecd5eabab0f21e81e70e5a9f7aab227

Download Submit
C:\Users\Public\LZS\meproaz.exe

Filesize
188KB

MD5
d0dad509d06c0f7e49cea090a4b4935e

SHA1
b5f598ff0c5148619bce9a96d62be7fc98ec6148

SHA256
406ca3b5767a2fb3cacea058561b313c662206157514f07d147b31ab1b8f025d

SHA512
9905b16482664d2675803868280b6dd08d3d13c43789718bfde3d194bc5a6f252c19e3c0f7a7b394cf30f71d38c3f16ea55202dee45c005a32233e5a269b3846

Download Submit
C:\Users\Public\LZS\meproaz.exe

Filesize
188KB

MD5
d0dad509d06c0f7e49cea090a4b4935e

SHA1
b5f598ff0c5148619bce9a96d62be7fc98ec6148

SHA256
406ca3b5767a2fb3cacea058561b313c662206157514f07d147b31ab1b8f025d

SHA512
9905b16482664d2675803868280b6dd08d3d13c43789718bfde3d194bc5a6f252c19e3c0f7a7b394cf30f71d38c3f16ea55202dee45c005a32233e5a269b3846

Download Submit
\Users\Public\LZS\Time.exe

Filesize
212KB

MD5
f98b74dee1bf916aa4575d78c7b4366c

SHA1
f136bcae6475bfd247762549bf428b12f251bc13

SHA256
4c12bb625c4c1c1c7684588e7838f59836f6e8009d932b099e90e1a7e98c0901

SHA512
ea626e850cfd95866abf812f9ae6fd2fa541483e905b3ec6d93e6d78c31d70a0c91a761a0e637cb2652667573ac3c7928ecd5eabab0f21e81e70e5a9f7aab227

Download Submit
\Users\Public\LZS\Time.exe

Filesize
212KB

MD5
f98b74dee1bf916aa4575d78c7b4366c

SHA1
f136bcae6475bfd247762549bf428b12f251bc13

SHA256
4c12bb625c4c1c1c7684588e7838f59836f6e8009d932b099e90e1a7e98c0901

SHA512
ea626e850cfd95866abf812f9ae6fd2fa541483e905b3ec6d93e6d78c31d70a0c91a761a0e637cb2652667573ac3c7928ecd5eabab0f21e81e70e5a9f7aab227

Download Submit
\Users\Public\LZS\meproaz.exe

Filesize
188KB

MD5
d0dad509d06c0f7e49cea090a4b4935e

SHA1
b5f598ff0c5148619bce9a96d62be7fc98ec6148

SHA256
406ca3b5767a2fb3cacea058561b313c662206157514f07d147b31ab1b8f025d

SHA512
9905b16482664d2675803868280b6dd08d3d13c43789718bfde3d194bc5a6f252c19e3c0f7a7b394cf30f71d38c3f16ea55202dee45c005a32233e5a269b3846

Download Submit
\Users\Public\LZS\meproaz.exe

Filesize
188KB

MD5
d0dad509d06c0f7e49cea090a4b4935e

SHA1
b5f598ff0c5148619bce9a96d62be7fc98ec6148

SHA256
406ca3b5767a2fb3cacea058561b313c662206157514f07d147b31ab1b8f025d

SHA512
9905b16482664d2675803868280b6dd08d3d13c43789718bfde3d194bc5a6f252c19e3c0f7a7b394cf30f71d38c3f16ea55202dee45c005a32233e5a269b3846

Download Submit
memory/1372-70-0x0000000006B00000-0x0000000006B4E000-memory.dmp

Filesize
312KB

Download
memory/1372-71-0x0000000010000000-0x000000001001E000-memory.dmp

Filesize
120KB

Download

Analysis

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