gh0strat | a2073a671456a7a10f2dfa55fca6760c89021cf8d1268a1d6753134e4bfe625d

General

Target

a2073a671456a7a10f2dfa55fca6760c89021cf8d1268a1d6753134e4bfe625d.exe
Size

208KB
MD5

6faafb9491560cd8cc589bfc3b6f9136
SHA1

00f9df065c4e1d1d75334a0362d6e6e30376d6a8
SHA256

a2073a671456a7a10f2dfa55fca6760c89021cf8d1268a1d6753134e4bfe625d
SHA512

7f3a44d58c3492239b768ef629a1891cde562061d0aaaef57bf763cfe265f1a2c270ff404b235d9397bf64c7ed6ceab38804dc0a05cefc94a019f4598815cd63
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
1712	miwkj.exe

Executes dropped EXE 2 IoCs

pid	Process
1712	miwkj.exe
2128	hjq.exe

Loads dropped DLL 7 IoCs

pid	Process
2092	cmd.exe
2092	cmd.exe
1712	miwkj.exe
2128	hjq.exe
2128	hjq.exe
2128	hjq.exe
2128	hjq.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\\rtkxb\\hjq.exe \"c:\\Program Files\\rtkxb\\hjque.dll\",Compliance"	hjq.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)	\??\n:	hjq.exe
File opened (read-only)	\??\e:	hjq.exe
File opened (read-only)	\??\i:	hjq.exe
File opened (read-only)	\??\l:	hjq.exe
File opened (read-only)	\??\j:	hjq.exe
File opened (read-only)	\??\q:	hjq.exe
File opened (read-only)	\??\t:	hjq.exe
File opened (read-only)	\??\z:	hjq.exe
File opened (read-only)	\??\o:	hjq.exe
File opened (read-only)	\??\p:	hjq.exe
File opened (read-only)	\??\a:	hjq.exe
File opened (read-only)	\??\g:	hjq.exe
File opened (read-only)	\??\h:	hjq.exe
File opened (read-only)	\??\k:	hjq.exe
File opened (read-only)	\??\m:	hjq.exe
File opened (read-only)	\??\r:	hjq.exe
File opened (read-only)	\??\b:	hjq.exe
File opened (read-only)	\??\s:	hjq.exe
File opened (read-only)	\??\u:	hjq.exe
File opened (read-only)	\??\v:	hjq.exe
File opened (read-only)	\??\w:	hjq.exe
File opened (read-only)	\??\x:	hjq.exe
File opened (read-only)	\??\y:	hjq.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	hjq.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\rtkxb	miwkj.exe
File created	\??\c:\Program Files\rtkxb\hjque.dll	miwkj.exe
File created	\??\c:\Program Files\rtkxb\hjq.exe	miwkj.exe
File opened for modification	\??\c:\Program Files\rtkxb\hjq.exe	miwkj.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	miwkj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hjq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a2073a671456a7a10f2dfa55fca6760c89021cf8d1268a1d6753134e4bfe625d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.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
2092	cmd.exe
1924	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	hjq.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	hjq.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1924	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2128	hjq.exe
2128	hjq.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2128	hjq.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1704	a2073a671456a7a10f2dfa55fca6760c89021cf8d1268a1d6753134e4bfe625d.exe
1712	miwkj.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1704 wrote to memory of 2092	1704	a2073a671456a7a10f2dfa55fca6760c89021cf8d1268a1d6753134e4bfe625d.exe	30
PID 1704 wrote to memory of 2092	1704	a2073a671456a7a10f2dfa55fca6760c89021cf8d1268a1d6753134e4bfe625d.exe	30
PID 1704 wrote to memory of 2092	1704	a2073a671456a7a10f2dfa55fca6760c89021cf8d1268a1d6753134e4bfe625d.exe	30
PID 1704 wrote to memory of 2092	1704	a2073a671456a7a10f2dfa55fca6760c89021cf8d1268a1d6753134e4bfe625d.exe	30
PID 2092 wrote to memory of 1924	2092	cmd.exe	32
PID 2092 wrote to memory of 1924	2092	cmd.exe	32
PID 2092 wrote to memory of 1924	2092	cmd.exe	32
PID 2092 wrote to memory of 1924	2092	cmd.exe	32
PID 2092 wrote to memory of 1712	2092	cmd.exe	33
PID 2092 wrote to memory of 1712	2092	cmd.exe	33
PID 2092 wrote to memory of 1712	2092	cmd.exe	33
PID 2092 wrote to memory of 1712	2092	cmd.exe	33
PID 1712 wrote to memory of 2128	1712	miwkj.exe	34
PID 1712 wrote to memory of 2128	1712	miwkj.exe	34
PID 1712 wrote to memory of 2128	1712	miwkj.exe	34
PID 1712 wrote to memory of 2128	1712	miwkj.exe	34

C:\Users\Admin\AppData\Local\Temp\a2073a671456a7a10f2dfa55fca6760c89021cf8d1268a1d6753134e4bfe625d.exe
"C:\Users\Admin\AppData\Local\Temp\a2073a671456a7a10f2dfa55fca6760c89021cf8d1268a1d6753134e4bfe625d.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1704
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\miwkj.exe "C:\Users\Admin\AppData\Local\Temp\a2073a671456a7a10f2dfa55fca6760c89021cf8d1268a1d6753134e4bfe625d.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2092
- - 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:1924
- - C:\Users\Admin\AppData\Local\Temp\miwkj.exe
    C:\Users\Admin\AppData\Local\Temp\\miwkj.exe "C:\Users\Admin\AppData\Local\Temp\a2073a671456a7a10f2dfa55fca6760c89021cf8d1268a1d6753134e4bfe625d.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:1712
  - - \??\c:\Program Files\rtkxb\hjq.exe
      "c:\Program Files\rtkxb\hjq.exe" "c:\Program Files\rtkxb\hjque.dll",Compliance C:\Users\Admin\AppData\Local\Temp\miwkj.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:2128

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\miwkj.exe

Filesize
208KB

MD5
807fe2745bb3552f19e9e7a13415fc11

SHA1
02ed69935465c4a21fda25021b2b5d958bf79aa3

SHA256
82c6e115128dc33cd281c387975c318fb6164623e36f3327b3226aa21e9f9239

SHA512
aa849af1a090be7a47f2b9ce3d498887f0dda5ba6c3c3a64721f5770f6300548d443ef8c54fc331b8734de746b25df6db58377c7b277af7e6b73015543e7d09b

Download Submit
\??\c:\Program Files\rtkxb\hjque.dll

Filesize
141KB

MD5
c57d663905ef3ba9cf3559b07b5ce188

SHA1
822b4d294ab05d6edd5030eabba0cef73a61e0ff

SHA256
39ca9e93a28a940d2765fd00beb4c961b068673c9a478362dfbf0f814f64d1cb

SHA512
17713c18ba3bcc20f3f95429bf8e99b9510a750c79dcd257afc519d0a659f3029a66f0fb1db7187e7bc88a0c12aeda7a3a1856b202a4d3c9c49f81555155d541

Download Submit
\Program Files\rtkxb\hjq.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/1704-0-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/1704-1-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/1704-2-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/1704-4-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/1712-12-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/1712-11-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/1712-13-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/1712-20-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/2092-10-0x00000000002C0000-0x000000000030A000-memory.dmp

Filesize
296KB

Download
memory/2092-7-0x00000000002C0000-0x000000000030A000-memory.dmp

Filesize
296KB

Download
memory/2128-30-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2128-29-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2128-28-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2128-31-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2128-32-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2128-34-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads