gh0strat | 2b6f87ec9fc09c492daa8de70e2765646e1a191024f3201fcd47e5105e6ac46b

General

Target

2b6f87ec9fc09c492daa8de70e2765646e1a191024f3201fcd47e5105e6ac46b.exe
Size

207KB
MD5

ec117b61c9f9d18adb39633f504196a9
SHA1

daeee2a39e1f6474bef1199bb17f82f4648457f7
SHA256

2b6f87ec9fc09c492daa8de70e2765646e1a191024f3201fcd47e5105e6ac46b
SHA512

bb90e19147e786829da21bf5cb6ed310b65ca539424fa715d7388c7e2db531ca972114041421f7e582bac822cf40ff556625f937bb8ec23a2bd2d6d2ab60fb43
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
1548	lbxfz.exe

Executes dropped EXE 2 IoCs

pid	Process
1548	lbxfz.exe
1452	mzj.exe

Loads dropped DLL 1 IoCs

pid	Process
1452	mzj.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-1-5-21-2278412438-3475196406-3686434223-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Depend = "c:\\Program Files\\zgfsy\\mzj.exe \"c:\\Program Files\\zgfsy\\mzjrs.dll\",Compliance"	mzj.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)	\??\e:	mzj.exe
File opened (read-only)	\??\i:	mzj.exe
File opened (read-only)	\??\r:	mzj.exe
File opened (read-only)	\??\u:	mzj.exe
File opened (read-only)	\??\a:	mzj.exe
File opened (read-only)	\??\h:	mzj.exe
File opened (read-only)	\??\n:	mzj.exe
File opened (read-only)	\??\q:	mzj.exe
File opened (read-only)	\??\s:	mzj.exe
File opened (read-only)	\??\t:	mzj.exe
File opened (read-only)	\??\w:	mzj.exe
File opened (read-only)	\??\b:	mzj.exe
File opened (read-only)	\??\g:	mzj.exe
File opened (read-only)	\??\k:	mzj.exe
File opened (read-only)	\??\l:	mzj.exe
File opened (read-only)	\??\m:	mzj.exe
File opened (read-only)	\??\o:	mzj.exe
File opened (read-only)	\??\v:	mzj.exe
File opened (read-only)	\??\y:	mzj.exe
File opened (read-only)	\??\j:	mzj.exe
File opened (read-only)	\??\p:	mzj.exe
File opened (read-only)	\??\x:	mzj.exe
File opened (read-only)	\??\z:	mzj.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	mzj.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\zgfsy	lbxfz.exe
File created	\??\c:\Program Files\zgfsy\mzjrs.dll	lbxfz.exe
File created	\??\c:\Program Files\zgfsy\mzj.exe	lbxfz.exe
File opened for modification	\??\c:\Program Files\zgfsy\mzj.exe	lbxfz.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	2b6f87ec9fc09c492daa8de70e2765646e1a191024f3201fcd47e5105e6ac46b.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	lbxfz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mzj.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
1100	cmd.exe
2396	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	mzj.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	mzj.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2396	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1452	mzj.exe
1452	mzj.exe
1452	mzj.exe
1452	mzj.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1452	mzj.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4896	2b6f87ec9fc09c492daa8de70e2765646e1a191024f3201fcd47e5105e6ac46b.exe
1548	lbxfz.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4896 wrote to memory of 1100	4896	2b6f87ec9fc09c492daa8de70e2765646e1a191024f3201fcd47e5105e6ac46b.exe	86
PID 4896 wrote to memory of 1100	4896	2b6f87ec9fc09c492daa8de70e2765646e1a191024f3201fcd47e5105e6ac46b.exe	86
PID 4896 wrote to memory of 1100	4896	2b6f87ec9fc09c492daa8de70e2765646e1a191024f3201fcd47e5105e6ac46b.exe	86
PID 1100 wrote to memory of 2396	1100	cmd.exe	88
PID 1100 wrote to memory of 2396	1100	cmd.exe	88
PID 1100 wrote to memory of 2396	1100	cmd.exe	88
PID 1100 wrote to memory of 1548	1100	cmd.exe	91
PID 1100 wrote to memory of 1548	1100	cmd.exe	91
PID 1100 wrote to memory of 1548	1100	cmd.exe	91
PID 1548 wrote to memory of 1452	1548	lbxfz.exe	92
PID 1548 wrote to memory of 1452	1548	lbxfz.exe	92
PID 1548 wrote to memory of 1452	1548	lbxfz.exe	92

C:\Users\Admin\AppData\Local\Temp\2b6f87ec9fc09c492daa8de70e2765646e1a191024f3201fcd47e5105e6ac46b.exe
"C:\Users\Admin\AppData\Local\Temp\2b6f87ec9fc09c492daa8de70e2765646e1a191024f3201fcd47e5105e6ac46b.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4896
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\lbxfz.exe "C:\Users\Admin\AppData\Local\Temp\2b6f87ec9fc09c492daa8de70e2765646e1a191024f3201fcd47e5105e6ac46b.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1100
- - 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:2396
- - C:\Users\Admin\AppData\Local\Temp\lbxfz.exe
    C:\Users\Admin\AppData\Local\Temp\\lbxfz.exe "C:\Users\Admin\AppData\Local\Temp\2b6f87ec9fc09c492daa8de70e2765646e1a191024f3201fcd47e5105e6ac46b.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:1548
  - - \??\c:\Program Files\zgfsy\mzj.exe
      "c:\Program Files\zgfsy\mzj.exe" "c:\Program Files\zgfsy\mzjrs.dll",Compliance C:\Users\Admin\AppData\Local\Temp\lbxfz.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:1452

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:\Program Files\zgfsy\mzj.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

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

Filesize
208KB

MD5
b9ae919dcdce7ed5e0ed831fd8d7ad8a

SHA1
b81534c6ad798044a95a5ec6743383e52037562e

SHA256
b581f7c836dee320baab8e2a883ba5086d060befc1ad14a3d5482fbb41bd1bd0

SHA512
409ee6a1cd131f635bcbf25729e4df791f9daa02ffa56c23fde7668c7fe259fc31172cca11536973286599936bcb968465880d065f760129f80f6ab2d409f054

Download Submit
\??\c:\Program Files\zgfsy\mzjrs.dll

Filesize
141KB

MD5
d33a4059d82107d2326c044d447aaed0

SHA1
2de73349c6fc1a8a32ef423b23733cd8feaacd29

SHA256
77bab06777ae6007ed8a6cf3ba3fb4a8cc45b159bbfb49fe9a5c9d2cdc366c44

SHA512
eb11949b0419b4b9a1680ad9c8cc8d8464b88e7463df3f90ea92d523f9cf14c7d03ba66f30724bb449ced47ed3243829c7bcdb232d95c50d5d3290e0228a43d7

Download Submit
memory/1452-24-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/1452-21-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/1452-20-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/1452-19-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/1548-8-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/1548-15-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/1548-9-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/4896-0-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/4896-4-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/4896-1-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/4896-2-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads