gh0strat | 1c3e0b351a0aa708e917c93aa1fc539a79883393e96291508c831b71c2d5a336

General

Target

1c3e0b351a0aa708e917c93aa1fc539a79883393e96291508c831b71c2d5a336.exe
Size

206KB
MD5

411431ab7bdd77eb0436414cc5009c65
SHA1

b65b7b117ebcc603ff943a83ea3f257d7e648fc2
SHA256

1c3e0b351a0aa708e917c93aa1fc539a79883393e96291508c831b71c2d5a336
SHA512

c4ec32f47f2726cceb502194464a8191d6bc809a7676162c1be420213a8d9ee3cd648a402ecf8d4968d7777817d4f845ab7d8c878cb80f3947e9a0e1bc6344b4
SSDEEP

3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkT: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
4840	pplrn.exe

Executes dropped EXE 2 IoCs

pid	Process
4840	pplrn.exe
4628	ynl.exe

Loads dropped DLL 1 IoCs

pid	Process
4628	ynl.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-1-5-21-3446877943-4095308722-756223633-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Depend = "c:\\Program Files\\awyaq\\ynl.exe \"c:\\Program Files\\awyaq\\ynljh.dll\",Compliance"	ynl.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)	\??\g:	ynl.exe
File opened (read-only)	\??\h:	ynl.exe
File opened (read-only)	\??\j:	ynl.exe
File opened (read-only)	\??\q:	ynl.exe
File opened (read-only)	\??\b:	ynl.exe
File opened (read-only)	\??\o:	ynl.exe
File opened (read-only)	\??\p:	ynl.exe
File opened (read-only)	\??\u:	ynl.exe
File opened (read-only)	\??\v:	ynl.exe
File opened (read-only)	\??\x:	ynl.exe
File opened (read-only)	\??\z:	ynl.exe
File opened (read-only)	\??\a:	ynl.exe
File opened (read-only)	\??\n:	ynl.exe
File opened (read-only)	\??\s:	ynl.exe
File opened (read-only)	\??\t:	ynl.exe
File opened (read-only)	\??\w:	ynl.exe
File opened (read-only)	\??\y:	ynl.exe
File opened (read-only)	\??\e:	ynl.exe
File opened (read-only)	\??\i:	ynl.exe
File opened (read-only)	\??\k:	ynl.exe
File opened (read-only)	\??\l:	ynl.exe
File opened (read-only)	\??\m:	ynl.exe
File opened (read-only)	\??\r:	ynl.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	ynl.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\awyaq	pplrn.exe
File created	\??\c:\Program Files\awyaq\ynljh.dll	pplrn.exe
File created	\??\c:\Program Files\awyaq\ynl.exe	pplrn.exe
File opened for modification	\??\c:\Program Files\awyaq\ynl.exe	pplrn.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	1c3e0b351a0aa708e917c93aa1fc539a79883393e96291508c831b71c2d5a336.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	pplrn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ynl.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
4104	cmd.exe
3244	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	ynl.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	ynl.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3244	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4628	ynl.exe
4628	ynl.exe
4628	ynl.exe
4628	ynl.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4628	ynl.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2676	1c3e0b351a0aa708e917c93aa1fc539a79883393e96291508c831b71c2d5a336.exe
4840	pplrn.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2676 wrote to memory of 4104	2676	1c3e0b351a0aa708e917c93aa1fc539a79883393e96291508c831b71c2d5a336.exe	88
PID 2676 wrote to memory of 4104	2676	1c3e0b351a0aa708e917c93aa1fc539a79883393e96291508c831b71c2d5a336.exe	88
PID 2676 wrote to memory of 4104	2676	1c3e0b351a0aa708e917c93aa1fc539a79883393e96291508c831b71c2d5a336.exe	88
PID 4104 wrote to memory of 3244	4104	cmd.exe	91
PID 4104 wrote to memory of 3244	4104	cmd.exe	91
PID 4104 wrote to memory of 3244	4104	cmd.exe	91
PID 4104 wrote to memory of 4840	4104	cmd.exe	92
PID 4104 wrote to memory of 4840	4104	cmd.exe	92
PID 4104 wrote to memory of 4840	4104	cmd.exe	92
PID 4840 wrote to memory of 4628	4840	pplrn.exe	93
PID 4840 wrote to memory of 4628	4840	pplrn.exe	93
PID 4840 wrote to memory of 4628	4840	pplrn.exe	93

C:\Users\Admin\AppData\Local\Temp\1c3e0b351a0aa708e917c93aa1fc539a79883393e96291508c831b71c2d5a336.exe
"C:\Users\Admin\AppData\Local\Temp\1c3e0b351a0aa708e917c93aa1fc539a79883393e96291508c831b71c2d5a336.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2676
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\pplrn.exe "C:\Users\Admin\AppData\Local\Temp\1c3e0b351a0aa708e917c93aa1fc539a79883393e96291508c831b71c2d5a336.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4104
- - 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:3244
- - C:\Users\Admin\AppData\Local\Temp\pplrn.exe
    C:\Users\Admin\AppData\Local\Temp\\pplrn.exe "C:\Users\Admin\AppData\Local\Temp\1c3e0b351a0aa708e917c93aa1fc539a79883393e96291508c831b71c2d5a336.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:4840
  - - \??\c:\Program Files\awyaq\ynl.exe
      "c:\Program Files\awyaq\ynl.exe" "c:\Program Files\awyaq\ynljh.dll",Compliance C:\Users\Admin\AppData\Local\Temp\pplrn.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:4628

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c c:\Program Files\awyaq\ynl.exe "c:\Program Files\awyaq\ynljh.dll",Compliance
1⤵
PID:3020

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\awyaq\ynl.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

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

Filesize
207KB

MD5
b7b082af97141256fb4fa9391ea06280

SHA1
2fe7e67e926df5d4c60a96e70312326e5833b5a8

SHA256
f820faf6bc9d5a6580c825c2bd2352346fd61111c0828c5f08fde6bc634084e1

SHA512
9bfa2af19cd2e02d6ac6befdaac3fae49459ad2debb354335a59955b22c74938e68b5b2fecfcad38a25c08d42008641679813d13847399972bf79a6f160a097c

Download Submit
\??\c:\Program Files\awyaq\ynljh.dll

Filesize
141KB

MD5
d9c2ebc1c4a95bac4fad903cb4984543

SHA1
167065d535d1071e731d1fec7d56190289588054

SHA256
fc02f2188b0e8d85d2d5e93f35da07676c5dc1f5f45f723394349cf820e0b217

SHA512
8efbd7604aaa85d63db8c6d44f8c98e3319ea556bb7c129a69bcf9c8a3c866d7414144e6d399d664a87396b567b93625199e33774fc636271e6f9cf038c2a5ed

Download Submit
memory/2676-4-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/2676-0-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/2676-2-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/2676-1-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/4628-19-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/4628-21-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/4628-20-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/4628-24-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/4840-9-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/4840-8-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/4840-14-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads