gh0strat | 8b3b6ef2b1821abef740941e4a1d91322b62fed497d2bfc40f2c1dd9f99eac3f

General

Target

8b3b6ef2b1821abef740941e4a1d91322b62fed497d2bfc40f2c1dd9f99eac3f.exe
Size

207KB
MD5

5a4d82f862d357453f20403e95069476
SHA1

b145c117b097594c19919b00a0ee2e10033b8f87
SHA256

8b3b6ef2b1821abef740941e4a1d91322b62fed497d2bfc40f2c1dd9f99eac3f
SHA512

63fc6167a24e33d015aa068034a1da514f4b6f08c69bbb8b1692b83b9468f5debf9d3609ba41740611fd05309b62d1a2d855e0919893d8a444fdc03cfbe7610b
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
1856	xbmgwo.exe

Executes dropped EXE 2 IoCs

pid	Process
1856	xbmgwo.exe
2136	rgh.exe

Loads dropped DLL 7 IoCs

pid	Process
1200	cmd.exe
1200	cmd.exe
1856	xbmgwo.exe
2136	rgh.exe
2136	rgh.exe
2136	rgh.exe
2136	rgh.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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\Depend = "c:\\Program Files\\xdwja\\rgh.exe \"c:\\Program Files\\xdwja\\rghmn.dll\",Compliance"	rgh.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)	\??\v:	rgh.exe
File opened (read-only)	\??\w:	rgh.exe
File opened (read-only)	\??\b:	rgh.exe
File opened (read-only)	\??\e:	rgh.exe
File opened (read-only)	\??\g:	rgh.exe
File opened (read-only)	\??\i:	rgh.exe
File opened (read-only)	\??\k:	rgh.exe
File opened (read-only)	\??\p:	rgh.exe
File opened (read-only)	\??\u:	rgh.exe
File opened (read-only)	\??\j:	rgh.exe
File opened (read-only)	\??\l:	rgh.exe
File opened (read-only)	\??\m:	rgh.exe
File opened (read-only)	\??\q:	rgh.exe
File opened (read-only)	\??\s:	rgh.exe
File opened (read-only)	\??\y:	rgh.exe
File opened (read-only)	\??\h:	rgh.exe
File opened (read-only)	\??\t:	rgh.exe
File opened (read-only)	\??\x:	rgh.exe
File opened (read-only)	\??\z:	rgh.exe
File opened (read-only)	\??\a:	rgh.exe
File opened (read-only)	\??\n:	rgh.exe
File opened (read-only)	\??\o:	rgh.exe
File opened (read-only)	\??\r:	rgh.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	rgh.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File created	\??\c:\Program Files\xdwja\rgh.exe	xbmgwo.exe
File opened for modification	\??\c:\Program Files\xdwja\rgh.exe	xbmgwo.exe
File opened for modification	\??\c:\Program Files\xdwja	xbmgwo.exe
File created	\??\c:\Program Files\xdwja\rghmn.dll	xbmgwo.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	8b3b6ef2b1821abef740941e4a1d91322b62fed497d2bfc40f2c1dd9f99eac3f.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	xbmgwo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rgh.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
2108	PING.EXE
1200	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	rgh.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rgh.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2108	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2136	rgh.exe
2136	rgh.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2136	rgh.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2304	8b3b6ef2b1821abef740941e4a1d91322b62fed497d2bfc40f2c1dd9f99eac3f.exe
1856	xbmgwo.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 1200	2304	8b3b6ef2b1821abef740941e4a1d91322b62fed497d2bfc40f2c1dd9f99eac3f.exe	30
PID 2304 wrote to memory of 1200	2304	8b3b6ef2b1821abef740941e4a1d91322b62fed497d2bfc40f2c1dd9f99eac3f.exe	30
PID 2304 wrote to memory of 1200	2304	8b3b6ef2b1821abef740941e4a1d91322b62fed497d2bfc40f2c1dd9f99eac3f.exe	30
PID 2304 wrote to memory of 1200	2304	8b3b6ef2b1821abef740941e4a1d91322b62fed497d2bfc40f2c1dd9f99eac3f.exe	30
PID 1200 wrote to memory of 2108	1200	cmd.exe	32
PID 1200 wrote to memory of 2108	1200	cmd.exe	32
PID 1200 wrote to memory of 2108	1200	cmd.exe	32
PID 1200 wrote to memory of 2108	1200	cmd.exe	32
PID 1200 wrote to memory of 1856	1200	cmd.exe	33
PID 1200 wrote to memory of 1856	1200	cmd.exe	33
PID 1200 wrote to memory of 1856	1200	cmd.exe	33
PID 1200 wrote to memory of 1856	1200	cmd.exe	33
PID 1856 wrote to memory of 2136	1856	xbmgwo.exe	34
PID 1856 wrote to memory of 2136	1856	xbmgwo.exe	34
PID 1856 wrote to memory of 2136	1856	xbmgwo.exe	34
PID 1856 wrote to memory of 2136	1856	xbmgwo.exe	34

C:\Users\Admin\AppData\Local\Temp\8b3b6ef2b1821abef740941e4a1d91322b62fed497d2bfc40f2c1dd9f99eac3f.exe
"C:\Users\Admin\AppData\Local\Temp\8b3b6ef2b1821abef740941e4a1d91322b62fed497d2bfc40f2c1dd9f99eac3f.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2304
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\xbmgwo.exe "C:\Users\Admin\AppData\Local\Temp\8b3b6ef2b1821abef740941e4a1d91322b62fed497d2bfc40f2c1dd9f99eac3f.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1200
- - 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:2108
- - C:\Users\Admin\AppData\Local\Temp\xbmgwo.exe
    C:\Users\Admin\AppData\Local\Temp\\xbmgwo.exe "C:\Users\Admin\AppData\Local\Temp\8b3b6ef2b1821abef740941e4a1d91322b62fed497d2bfc40f2c1dd9f99eac3f.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Loads dropped DLL
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1856
  - - \??\c:\Program Files\xdwja\rgh.exe
      "c:\Program Files\xdwja\rgh.exe" "c:\Program Files\xdwja\rghmn.dll",Compliance C:\Users\Admin\AppData\Local\Temp\xbmgwo.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:2136

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\xbmgwo.exe

Filesize
207KB

MD5
ca8d5854eddb5358b44e0426575bcd6f

SHA1
3eaf0c51f62c8f8487dd4451e6a023fdfde4e39a

SHA256
9dedb02a2bd24b6ba9b976b33fea5190230308d1a858011f1687ef110b732081

SHA512
64c7fadcc2d41175cfaf1c912cd689c746cd1ffa1783dec054a20e5c7e098db3c6e742a36086bb907cb9b8f9c1409e2f4bc4c60a521f7d656e7e7d6825c9ddbf

Download Submit
\??\c:\Program Files\xdwja\rghmn.dll

Filesize
141KB

MD5
bba5b44a12934692506e83a87fdfaecb

SHA1
912858afb1bd01b33b9177b73a70bc516f9b84d1

SHA256
0ae962437ce0c6176d2ce1be1edd552223a113695b54c87b869b03243a911b0a

SHA512
0aae062c2ef0f5f2fccd0c6dc8b41fa92a6c372e8b357a9720dc610b260000e564de96c8b6894739c8d4b244c5e2f91def08d5271ceb4b3a08a727ad63dea964

Download Submit
\Program Files\xdwja\rgh.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/1200-10-0x0000000002240000-0x000000000228A000-memory.dmp

Filesize
296KB

Download
memory/1200-9-0x0000000002240000-0x000000000228A000-memory.dmp

Filesize
296KB

Download
memory/1856-13-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/1856-12-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/1856-21-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/2136-29-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2136-28-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2136-30-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2136-31-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2136-33-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2304-5-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/2304-0-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/2304-2-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/2304-1-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads