gh0strat | 699b67efd01dbac912ace418d65c6336cda33f6ee81b65bd15aae52d27159a54

General

Target

699b67efd01dbac912ace418d65c6336cda33f6ee81b65bd15aae52d27159a54.exe
Size

207KB
MD5

3181b42d5f7f125bbb51d06f58dd0fe5
SHA1

828da6789f7b7998afd87069ad7d75ad67ddaf07
SHA256

699b67efd01dbac912ace418d65c6336cda33f6ee81b65bd15aae52d27159a54
SHA512

2ce042fe30a9e9e918ff3384700f60e86c1abdb82635b859ace86fadc68b923dfb3905959382b5eff114960bd07498741b724672978e01dfa27e8a890f371788
SSDEEP

3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkTF:X2vnSwjaOcADw9cUeCOf

Score

10^/10

gh0strat bootkit discovery persistence rat spyware stealer

Malware Config

Extracted

Family

gh0strat

C2

107.163.241.193:6520

http://107.163.241.181:16300/

http://107.163.241.182:12354/login.php

Attributes

user_agent
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C))

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0)

Signatures

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
Gh0strat family
gh0strat

Deletes itself 1 IoCs

pid	Process
1912	erwgke.exe

Executes dropped EXE 2 IoCs

pid	Process
1912	erwgke.exe
2332	mrt.exe

Loads dropped DLL 1 IoCs

pid	Process
2332	mrt.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

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\USER\S-1-5-21-1294999112-580688058-1763548717-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Depend = "c:\\Program Files\\jytye\\mrt.exe \"c:\\Program Files\\jytye\\mrtmw.dll\",Compliance"	mrt.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\h:	mrt.exe
File opened (read-only)	\??\m:	mrt.exe
File opened (read-only)	\??\o:	mrt.exe
File opened (read-only)	\??\q:	mrt.exe
File opened (read-only)	\??\v:	mrt.exe
File opened (read-only)	\??\y:	mrt.exe
File opened (read-only)	\??\a:	mrt.exe
File opened (read-only)	\??\b:	mrt.exe
File opened (read-only)	\??\i:	mrt.exe
File opened (read-only)	\??\r:	mrt.exe
File opened (read-only)	\??\w:	mrt.exe
File opened (read-only)	\??\k:	mrt.exe
File opened (read-only)	\??\l:	mrt.exe
File opened (read-only)	\??\n:	mrt.exe
File opened (read-only)	\??\t:	mrt.exe
File opened (read-only)	\??\u:	mrt.exe
File opened (read-only)	\??\z:	mrt.exe
File opened (read-only)	\??\e:	mrt.exe
File opened (read-only)	\??\g:	mrt.exe
File opened (read-only)	\??\j:	mrt.exe
File opened (read-only)	\??\p:	mrt.exe
File opened (read-only)	\??\s:	mrt.exe
File opened (read-only)	\??\x:	mrt.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PHYSICALDRIVE0	mrt.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File created	\??\c:\Program Files\jytye\mrt.exe	erwgke.exe
File opened for modification	\??\c:\Program Files\jytye\mrt.exe	erwgke.exe
File opened for modification	\??\c:\Program Files\jytye	erwgke.exe
File created	\??\c:\Program Files\jytye\mrtmw.dll	erwgke.exe

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mrt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	699b67efd01dbac912ace418d65c6336cda33f6ee81b65bd15aae52d27159a54.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	erwgke.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4564	cmd.exe
388	PING.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	mrt.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	mrt.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
388	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2332	mrt.exe
2332	mrt.exe
2332	mrt.exe
2332	mrt.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2332	mrt.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1852	699b67efd01dbac912ace418d65c6336cda33f6ee81b65bd15aae52d27159a54.exe
1912	erwgke.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1852 wrote to memory of 4564	1852	699b67efd01dbac912ace418d65c6336cda33f6ee81b65bd15aae52d27159a54.exe	87
PID 1852 wrote to memory of 4564	1852	699b67efd01dbac912ace418d65c6336cda33f6ee81b65bd15aae52d27159a54.exe	87
PID 1852 wrote to memory of 4564	1852	699b67efd01dbac912ace418d65c6336cda33f6ee81b65bd15aae52d27159a54.exe	87
PID 4564 wrote to memory of 388	4564	cmd.exe	89
PID 4564 wrote to memory of 388	4564	cmd.exe	89
PID 4564 wrote to memory of 388	4564	cmd.exe	89
PID 4564 wrote to memory of 1912	4564	cmd.exe	92
PID 4564 wrote to memory of 1912	4564	cmd.exe	92
PID 4564 wrote to memory of 1912	4564	cmd.exe	92
PID 1912 wrote to memory of 2332	1912	erwgke.exe	93
PID 1912 wrote to memory of 2332	1912	erwgke.exe	93
PID 1912 wrote to memory of 2332	1912	erwgke.exe	93

C:\Users\Admin\AppData\Local\Temp\699b67efd01dbac912ace418d65c6336cda33f6ee81b65bd15aae52d27159a54.exe
"C:\Users\Admin\AppData\Local\Temp\699b67efd01dbac912ace418d65c6336cda33f6ee81b65bd15aae52d27159a54.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1852
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\erwgke.exe "C:\Users\Admin\AppData\Local\Temp\699b67efd01dbac912ace418d65c6336cda33f6ee81b65bd15aae52d27159a54.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4564
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:388
- - C:\Users\Admin\AppData\Local\Temp\erwgke.exe
    C:\Users\Admin\AppData\Local\Temp\\erwgke.exe "C:\Users\Admin\AppData\Local\Temp\699b67efd01dbac912ace418d65c6336cda33f6ee81b65bd15aae52d27159a54.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1912
  - - \??\c:\Program Files\jytye\mrt.exe
      "c:\Program Files\jytye\mrt.exe" "c:\Program Files\jytye\mrtmw.dll",Compliance C:\Users\Admin\AppData\Local\Temp\erwgke.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2332

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Program Files\jytye\mrtmw.dll

Filesize
141KB

MD5
111015604bb2dd004c998e4ca50d8727

SHA1
6aac6e9b2592a8eeff3c5bd883da6060d1ca4ad9

SHA256
3f359f57b88e387ce6c7da5f1a2be066dff0cde0473cf49f64b12baf0a2fee8f

SHA512
da1b46bc2a42563bf50e5748f97c695240e1961c46619a2554224fbdc6c739aa6ea32f2704dd4593a74aaa7c740ff60b7b10a4b5c5a90b1160e1ab8b98de198f

Download Submit
C:\Users\Admin\AppData\Local\Temp\erwgke.exe

Filesize
207KB

MD5
816fc2d0c8ade3fb47ef13bc588ad0f3

SHA1
31b8b307eae7b5a8f13753053e27429a2864d9fd

SHA256
871a2d4c1d0404c22c7978f7fc795c1250779e70f1225e69b001283d6641e08d

SHA512
00234897730ebdb929f0ff96f7ba5201f431aa1cc0c8a7b43b6f3b6e5dad370c97a092884689d832781e66387af2be4c9acbaa1df36634d9e9493946488d244c

Download Submit
\??\c:\Program Files\jytye\mrt.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
memory/1852-5-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/1852-0-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/1852-2-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/1852-1-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/1912-9-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/1912-10-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/1912-16-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/2332-20-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2332-21-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2332-24-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads