gh0strat | 67135a3a62d198d93913f1339271eba468697bb9848d7971b2c704479cf2cefb

General

Target

67135a3a62d198d93913f1339271eba468697bb9848d7971b2c704479cf2cefb.exe
Size

207KB
MD5

9707616164d76d10b865f9927fbda739
SHA1

517ffc09fc482f459e3ce5d30b875f49a90b032f
SHA256

67135a3a62d198d93913f1339271eba468697bb9848d7971b2c704479cf2cefb
SHA512

80c43fa8208fc85db3e8baa66b6d5ce5dae9f144e385ca7a2d7ab72c321dddaed872af6c289f302cd2610c92c63395e1a72d2c0b5f269924871094dd3e41278d
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
2536	pkbib.exe

Executes dropped EXE 2 IoCs

pid	Process
2536	pkbib.exe
3124	allk.exe

Loads dropped DLL 1 IoCs

pid	Process
3124	allk.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-1-5-21-100612193-3312047696-905266872-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Depend = "c:\\Program Files\\pvcwnjcq\\allk.exe \"c:\\Program Files\\pvcwnjcq\\allkl.dll\",Compliance"	allk.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:	allk.exe
File opened (read-only)	\??\i:	allk.exe
File opened (read-only)	\??\k:	allk.exe
File opened (read-only)	\??\l:	allk.exe
File opened (read-only)	\??\x:	allk.exe
File opened (read-only)	\??\y:	allk.exe
File opened (read-only)	\??\b:	allk.exe
File opened (read-only)	\??\m:	allk.exe
File opened (read-only)	\??\o:	allk.exe
File opened (read-only)	\??\q:	allk.exe
File opened (read-only)	\??\r:	allk.exe
File opened (read-only)	\??\s:	allk.exe
File opened (read-only)	\??\w:	allk.exe
File opened (read-only)	\??\a:	allk.exe
File opened (read-only)	\??\j:	allk.exe
File opened (read-only)	\??\n:	allk.exe
File opened (read-only)	\??\u:	allk.exe
File opened (read-only)	\??\z:	allk.exe
File opened (read-only)	\??\e:	allk.exe
File opened (read-only)	\??\g:	allk.exe
File opened (read-only)	\??\p:	allk.exe
File opened (read-only)	\??\t:	allk.exe
File opened (read-only)	\??\v:	allk.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	allk.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\pvcwnjcq	pkbib.exe
File created	\??\c:\Program Files\pvcwnjcq\allkl.dll	pkbib.exe
File created	\??\c:\Program Files\pvcwnjcq\allk.exe	pkbib.exe
File opened for modification	\??\c:\Program Files\pvcwnjcq\allk.exe	pkbib.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	pkbib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	allk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	67135a3a62d198d93913f1339271eba468697bb9848d7971b2c704479cf2cefb.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
3364	PING.EXE
4124	cmd.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	allk.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	allk.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3364	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3124	allk.exe
3124	allk.exe
3124	allk.exe
3124	allk.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3124	allk.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2444	67135a3a62d198d93913f1339271eba468697bb9848d7971b2c704479cf2cefb.exe
2536	pkbib.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2444 wrote to memory of 4124	2444	67135a3a62d198d93913f1339271eba468697bb9848d7971b2c704479cf2cefb.exe	88
PID 2444 wrote to memory of 4124	2444	67135a3a62d198d93913f1339271eba468697bb9848d7971b2c704479cf2cefb.exe	88
PID 2444 wrote to memory of 4124	2444	67135a3a62d198d93913f1339271eba468697bb9848d7971b2c704479cf2cefb.exe	88
PID 4124 wrote to memory of 3364	4124	cmd.exe	90
PID 4124 wrote to memory of 3364	4124	cmd.exe	90
PID 4124 wrote to memory of 3364	4124	cmd.exe	90
PID 4124 wrote to memory of 2536	4124	cmd.exe	92
PID 4124 wrote to memory of 2536	4124	cmd.exe	92
PID 4124 wrote to memory of 2536	4124	cmd.exe	92
PID 2536 wrote to memory of 3124	2536	pkbib.exe	93
PID 2536 wrote to memory of 3124	2536	pkbib.exe	93
PID 2536 wrote to memory of 3124	2536	pkbib.exe	93

C:\Users\Admin\AppData\Local\Temp\67135a3a62d198d93913f1339271eba468697bb9848d7971b2c704479cf2cefb.exe
"C:\Users\Admin\AppData\Local\Temp\67135a3a62d198d93913f1339271eba468697bb9848d7971b2c704479cf2cefb.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\pkbib.exe "C:\Users\Admin\AppData\Local\Temp\67135a3a62d198d93913f1339271eba468697bb9848d7971b2c704479cf2cefb.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4124
- - 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:3364
- - C:\Users\Admin\AppData\Local\Temp\pkbib.exe
    C:\Users\Admin\AppData\Local\Temp\\pkbib.exe "C:\Users\Admin\AppData\Local\Temp\67135a3a62d198d93913f1339271eba468697bb9848d7971b2c704479cf2cefb.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:2536
  - - \??\c:\Program Files\pvcwnjcq\allk.exe
      "c:\Program Files\pvcwnjcq\allk.exe" "c:\Program Files\pvcwnjcq\allkl.dll",Compliance C:\Users\Admin\AppData\Local\Temp\pkbib.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:3124

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\pvcwnjcq\allk.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

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

Filesize
207KB

MD5
9c8b7dcb3d3c3f69cd9366b3e90d5db9

SHA1
8dc97af063b3e07c7201a14e4eff6344fd268c41

SHA256
009db0e613d447de409a559705536454c10fa2b91f095f4165833f0b7edfcf1e

SHA512
7685b5bcadc9f9374002985eaddf4f9b26fb1e917b26d524aa305f4490eb02e1b4bcefcd50ff1f10b1e8f569ab8e2ebcb43d417cadf69087a211ebd42fabc50a

Download Submit
\??\c:\Program Files\pvcwnjcq\allkl.dll

Filesize
141KB

MD5
1993ad60dca11bd3710bf9853f978491

SHA1
8325dab5ddfc356dee77afaa49ddaabee64fb57e

SHA256
4fa1970302e70345308fea3ad2930f2bb04e01942ac61b7105045a6eb04c3338

SHA512
e32c0793a87468b5888eff421c1ba45868c6530b2a46375de0746f887fe022bc63968dff4b44baa2112aea5b9d7fefcba39d4a62b0e390e82ea128d134f365b8

Download Submit
memory/2444-2-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/2444-1-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/2444-5-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/2444-0-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/2536-9-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/2536-10-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/2536-16-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/3124-20-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/3124-21-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/3124-22-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/3124-25-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads