gh0strat | e1b2834679d7ff912cd5d306731df4350f1a76033258d6cc861f67a4363c0406

General

Target

e1b2834679d7ff912cd5d306731df4350f1a76033258d6cc861f67a4363c0406.exe
Size

206KB
MD5

16048d1120331849721aa136e35c179b
SHA1

772e575366ead08240a41e15589e6f91c7e988d6
SHA256

e1b2834679d7ff912cd5d306731df4350f1a76033258d6cc861f67a4363c0406
SHA512

b1a982ece3f836e1994be4f98b7db9e58257a0bd41054fdca62095972cb86a66a86cc48aa6088e3df32b63f8d1e0fac2be744cf8d2c09d37c65cc84096dee689
SSDEEP

3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkT+:X2vnSwjaOcADw9cUeCOfU

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
4844	uswbz.exe

Executes dropped EXE 2 IoCs

pid	Process
4844	uswbz.exe
4840	hfb.exe

Loads dropped DLL 1 IoCs

pid	Process
4840	hfb.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-1-5-21-3975168204-1612096350-4002976354-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Depend = "c:\\Program Files\\tbckn\\hfb.exe \"c:\\Program Files\\tbckn\\hfbkr.dll\",Compliance"	hfb.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)	\??\j:	hfb.exe
File opened (read-only)	\??\n:	hfb.exe
File opened (read-only)	\??\o:	hfb.exe
File opened (read-only)	\??\r:	hfb.exe
File opened (read-only)	\??\u:	hfb.exe
File opened (read-only)	\??\v:	hfb.exe
File opened (read-only)	\??\x:	hfb.exe
File opened (read-only)	\??\e:	hfb.exe
File opened (read-only)	\??\k:	hfb.exe
File opened (read-only)	\??\y:	hfb.exe
File opened (read-only)	\??\a:	hfb.exe
File opened (read-only)	\??\h:	hfb.exe
File opened (read-only)	\??\l:	hfb.exe
File opened (read-only)	\??\p:	hfb.exe
File opened (read-only)	\??\q:	hfb.exe
File opened (read-only)	\??\s:	hfb.exe
File opened (read-only)	\??\b:	hfb.exe
File opened (read-only)	\??\i:	hfb.exe
File opened (read-only)	\??\m:	hfb.exe
File opened (read-only)	\??\t:	hfb.exe
File opened (read-only)	\??\w:	hfb.exe
File opened (read-only)	\??\z:	hfb.exe
File opened (read-only)	\??\g:	hfb.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	hfb.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File created	\??\c:\Program Files\tbckn\hfb.exe	uswbz.exe
File opened for modification	\??\c:\Program Files\tbckn\hfb.exe	uswbz.exe
File opened for modification	\??\c:\Program Files\tbckn	uswbz.exe
File created	\??\c:\Program Files\tbckn\hfbkr.dll	uswbz.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	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uswbz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hfb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e1b2834679d7ff912cd5d306731df4350f1a76033258d6cc861f67a4363c0406.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
2760	cmd.exe
3268	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	hfb.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	hfb.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3268	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4840	hfb.exe
4840	hfb.exe
4840	hfb.exe
4840	hfb.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4840	hfb.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4572	e1b2834679d7ff912cd5d306731df4350f1a76033258d6cc861f67a4363c0406.exe
4844	uswbz.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4572 wrote to memory of 2760	4572	e1b2834679d7ff912cd5d306731df4350f1a76033258d6cc861f67a4363c0406.exe	86
PID 4572 wrote to memory of 2760	4572	e1b2834679d7ff912cd5d306731df4350f1a76033258d6cc861f67a4363c0406.exe	86
PID 4572 wrote to memory of 2760	4572	e1b2834679d7ff912cd5d306731df4350f1a76033258d6cc861f67a4363c0406.exe	86
PID 2760 wrote to memory of 3268	2760	cmd.exe	88
PID 2760 wrote to memory of 3268	2760	cmd.exe	88
PID 2760 wrote to memory of 3268	2760	cmd.exe	88
PID 2760 wrote to memory of 4844	2760	cmd.exe	92
PID 2760 wrote to memory of 4844	2760	cmd.exe	92
PID 2760 wrote to memory of 4844	2760	cmd.exe	92
PID 4844 wrote to memory of 4840	4844	uswbz.exe	93
PID 4844 wrote to memory of 4840	4844	uswbz.exe	93
PID 4844 wrote to memory of 4840	4844	uswbz.exe	93

C:\Users\Admin\AppData\Local\Temp\e1b2834679d7ff912cd5d306731df4350f1a76033258d6cc861f67a4363c0406.exe
"C:\Users\Admin\AppData\Local\Temp\e1b2834679d7ff912cd5d306731df4350f1a76033258d6cc861f67a4363c0406.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4572
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\uswbz.exe "C:\Users\Admin\AppData\Local\Temp\e1b2834679d7ff912cd5d306731df4350f1a76033258d6cc861f67a4363c0406.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2760
- - 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:3268
- - C:\Users\Admin\AppData\Local\Temp\uswbz.exe
    C:\Users\Admin\AppData\Local\Temp\\uswbz.exe "C:\Users\Admin\AppData\Local\Temp\e1b2834679d7ff912cd5d306731df4350f1a76033258d6cc861f67a4363c0406.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:4844
  - - \??\c:\Program Files\tbckn\hfb.exe
      "c:\Program Files\tbckn\hfb.exe" "c:\Program Files\tbckn\hfbkr.dll",Compliance C:\Users\Admin\AppData\Local\Temp\uswbz.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:4840

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c c:\Program Files\tbckn\hfb.exe "c:\Program Files\tbckn\hfbkr.dll",Compliance
1⤵
PID:5016

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\tbckn\hfb.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

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

Filesize
206KB

MD5
5bdf78003fa76a52833b12fc38816458

SHA1
0eeb71c3ed7f614dcfb89c6cdc5337e158cedc32

SHA256
a1122a0711c0544b8806bd2c28a565eaf2f1fe8a7bbdcdd0c1d1c0bb008cce0e

SHA512
8e9595e1d2ac383c2c5d81e3b05f8f757593c9b12078090e424182b35aea99fd9b01496d6ed6e156203bf4fbc60f57e59f124048dda13a45e849e5f619ba92e0

Download Submit
\??\c:\Program Files\tbckn\hfbkr.dll

Filesize
141KB

MD5
dcced808f3984a6c8290a9758cc36750

SHA1
b973724f670697aa099bf2c4396393e70f5e0a91

SHA256
9218719dae47ff30821c49bd50e34433cfa61747a20140a2f64d5686b58434fa

SHA512
220bb075d91f629433dd81944cf79d9fe30b177a3e22f42640ddf0b9eded96327a432c71ff2ad727f25c43927d319e4ce0e2c8624bcd4ef0d3b7b5bfebbf1cbe

Download Submit
memory/4572-4-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/4572-0-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/4572-2-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/4572-1-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/4840-19-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/4840-20-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/4840-23-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/4844-8-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/4844-9-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/4844-15-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads