gh0strat | 0c23f85038faeb581e637fdca316c1edc57a75cf93305cf7ec5d23f7e9e96794

General

Target

0c23f85038faeb581e637fdca316c1edc57a75cf93305cf7ec5d23f7e9e96794.exe
Size

205KB
MD5

043495222e10e9627e31e05de4d068ea
SHA1

6b25d8a69d7991dae4d55c87f13a21ffa13a82d6
SHA256

0c23f85038faeb581e637fdca316c1edc57a75cf93305cf7ec5d23f7e9e96794
SHA512

8735171bce6a039211c695c1e6647fccf2c537b73c0412a3b16939cd43502ae20f76d82c5c11f2f7f30a840538839d22cfe470c7e403535a0113bd3eda02fef9
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
4992	zxlmqpbqi.exe

Executes dropped EXE 2 IoCs

pid	Process
4992	zxlmqpbqi.exe
4828	khpjxdfmr.exe

Loads dropped DLL 1 IoCs

pid	Process
4828	khpjxdfmr.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-1-5-21-3920955164-3782810283-1225622749-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Depend = "c:\\Program Files\\ggmas\\khpjxdfmr.exe \"c:\\Program Files\\ggmas\\khpjxdfmr.dll\",Compliance"	khpjxdfmr.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:	khpjxdfmr.exe
File opened (read-only)	\??\l:	khpjxdfmr.exe
File opened (read-only)	\??\o:	khpjxdfmr.exe
File opened (read-only)	\??\s:	khpjxdfmr.exe
File opened (read-only)	\??\t:	khpjxdfmr.exe
File opened (read-only)	\??\y:	khpjxdfmr.exe
File opened (read-only)	\??\m:	khpjxdfmr.exe
File opened (read-only)	\??\u:	khpjxdfmr.exe
File opened (read-only)	\??\e:	khpjxdfmr.exe
File opened (read-only)	\??\k:	khpjxdfmr.exe
File opened (read-only)	\??\n:	khpjxdfmr.exe
File opened (read-only)	\??\p:	khpjxdfmr.exe
File opened (read-only)	\??\r:	khpjxdfmr.exe
File opened (read-only)	\??\w:	khpjxdfmr.exe
File opened (read-only)	\??\z:	khpjxdfmr.exe
File opened (read-only)	\??\a:	khpjxdfmr.exe
File opened (read-only)	\??\b:	khpjxdfmr.exe
File opened (read-only)	\??\g:	khpjxdfmr.exe
File opened (read-only)	\??\i:	khpjxdfmr.exe
File opened (read-only)	\??\j:	khpjxdfmr.exe
File opened (read-only)	\??\q:	khpjxdfmr.exe
File opened (read-only)	\??\v:	khpjxdfmr.exe
File opened (read-only)	\??\x:	khpjxdfmr.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	khpjxdfmr.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\ggmas\khpjxdfmr.exe	zxlmqpbqi.exe
File opened for modification	\??\c:\Program Files\ggmas	zxlmqpbqi.exe
File created	\??\c:\Program Files\ggmas\khpjxdfmr.dll	zxlmqpbqi.exe
File created	\??\c:\Program Files\ggmas\khpjxdfmr.exe	zxlmqpbqi.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	zxlmqpbqi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	khpjxdfmr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0c23f85038faeb581e637fdca316c1edc57a75cf93305cf7ec5d23f7e9e96794.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
3132	cmd.exe
2740	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	khpjxdfmr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	khpjxdfmr.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2740	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4828	khpjxdfmr.exe
4828	khpjxdfmr.exe
4828	khpjxdfmr.exe
4828	khpjxdfmr.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4828	khpjxdfmr.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1832	0c23f85038faeb581e637fdca316c1edc57a75cf93305cf7ec5d23f7e9e96794.exe
4992	zxlmqpbqi.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1832 wrote to memory of 3132	1832	0c23f85038faeb581e637fdca316c1edc57a75cf93305cf7ec5d23f7e9e96794.exe	87
PID 1832 wrote to memory of 3132	1832	0c23f85038faeb581e637fdca316c1edc57a75cf93305cf7ec5d23f7e9e96794.exe	87
PID 1832 wrote to memory of 3132	1832	0c23f85038faeb581e637fdca316c1edc57a75cf93305cf7ec5d23f7e9e96794.exe	87
PID 3132 wrote to memory of 2740	3132	cmd.exe	89
PID 3132 wrote to memory of 2740	3132	cmd.exe	89
PID 3132 wrote to memory of 2740	3132	cmd.exe	89
PID 3132 wrote to memory of 4992	3132	cmd.exe	92
PID 3132 wrote to memory of 4992	3132	cmd.exe	92
PID 3132 wrote to memory of 4992	3132	cmd.exe	92
PID 4992 wrote to memory of 4828	4992	zxlmqpbqi.exe	93
PID 4992 wrote to memory of 4828	4992	zxlmqpbqi.exe	93
PID 4992 wrote to memory of 4828	4992	zxlmqpbqi.exe	93

C:\Users\Admin\AppData\Local\Temp\0c23f85038faeb581e637fdca316c1edc57a75cf93305cf7ec5d23f7e9e96794.exe
"C:\Users\Admin\AppData\Local\Temp\0c23f85038faeb581e637fdca316c1edc57a75cf93305cf7ec5d23f7e9e96794.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1832
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\zxlmqpbqi.exe "C:\Users\Admin\AppData\Local\Temp\0c23f85038faeb581e637fdca316c1edc57a75cf93305cf7ec5d23f7e9e96794.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3132
- - 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:2740
- - C:\Users\Admin\AppData\Local\Temp\zxlmqpbqi.exe
    C:\Users\Admin\AppData\Local\Temp\\zxlmqpbqi.exe "C:\Users\Admin\AppData\Local\Temp\0c23f85038faeb581e637fdca316c1edc57a75cf93305cf7ec5d23f7e9e96794.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:4992
  - - \??\c:\Program Files\ggmas\khpjxdfmr.exe
      "c:\Program Files\ggmas\khpjxdfmr.exe" "c:\Program Files\ggmas\khpjxdfmr.dll",Compliance C:\Users\Admin\AppData\Local\Temp\zxlmqpbqi.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:4828

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c c:\Program Files\ggmas\khpjxdfmr.exe "c:\Program Files\ggmas\khpjxdfmr.dll",Compliance
1⤵
PID:3120

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\ggmas\khpjxdfmr.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

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

Filesize
205KB

MD5
01ee223869e929be61cee2f66b333a46

SHA1
82e1fd004d9a357b9d8d726d9de3a6bc8fac6745

SHA256
574728a6787bb9f454e5d99b0ddb34cbeeefd839d09413c64d60cd44ebb88139

SHA512
60dbe057cc3491311b51c56845b735cec43ef48d785a63040d28eb8e3843a3cb0426c8ca60dd153c2bd8bf7abd41a3e0a3ba8092799ca52ac2109d72d2aaea60

Download Submit
\??\c:\Program Files\ggmas\khpjxdfmr.dll

Filesize
141KB

MD5
6e1270bb3a000ccb99c65b36e471e027

SHA1
6ead01a8621c07631296fabaa5ac9b446aa1d35d

SHA256
72fe4d00cef08e992ea3f9af1d34057e78f7e8d494637c9ae7b27b03aec6f07d

SHA512
f59a9fdc8c2ecaa3068ce89518a2895bbb571110d9346159da5986d78efbe4696e1350f586d692152963af7cf25e8595201d9377f2c5ad41f0f84fdf40979a13

Download Submit
memory/1832-4-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/1832-0-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/1832-1-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/1832-2-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/4828-19-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/4828-20-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/4828-23-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/4992-8-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/4992-9-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/4992-15-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads