gh0strat | 71a48f2ce5e665c7b8d058f56e15b5890dca951f3b812e6a85e91ae3379afdae

General

Target

71a48f2ce5e665c7b8d058f56e15b5890dca951f3b812e6a85e91ae3379afdae.exe
Size

205KB
MD5

4a9f9117844a1bb194be94f2f706937c
SHA1

3428134c082eba947a439b2f0645bd2a5e3847d1
SHA256

71a48f2ce5e665c7b8d058f56e15b5890dca951f3b812e6a85e91ae3379afdae
SHA512

372ef57c9c24ae20b738fb4463076aa9d6b8224fac1e939771d1089f69589a6f23b0301623ca004d1dd1beb6cdb202fdc8900d28a11958ed1a9eb70ebadbd22e
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
2608	fzkko.exe

Executes dropped EXE 2 IoCs

pid	Process
2608	fzkko.exe
4644	nha.exe

Loads dropped DLL 1 IoCs

pid	Process
4644	nha.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-1-5-21-308834014-1004923324-1191300197-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Depend = "c:\\Program Files\\kbjnf\\nha.exe \"c:\\Program Files\\kbjnf\\nhano.dll\",Compliance"	nha.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)	\??\e:	nha.exe
File opened (read-only)	\??\g:	nha.exe
File opened (read-only)	\??\i:	nha.exe
File opened (read-only)	\??\o:	nha.exe
File opened (read-only)	\??\q:	nha.exe
File opened (read-only)	\??\r:	nha.exe
File opened (read-only)	\??\a:	nha.exe
File opened (read-only)	\??\l:	nha.exe
File opened (read-only)	\??\n:	nha.exe
File opened (read-only)	\??\s:	nha.exe
File opened (read-only)	\??\v:	nha.exe
File opened (read-only)	\??\w:	nha.exe
File opened (read-only)	\??\k:	nha.exe
File opened (read-only)	\??\m:	nha.exe
File opened (read-only)	\??\p:	nha.exe
File opened (read-only)	\??\t:	nha.exe
File opened (read-only)	\??\z:	nha.exe
File opened (read-only)	\??\b:	nha.exe
File opened (read-only)	\??\h:	nha.exe
File opened (read-only)	\??\j:	nha.exe
File opened (read-only)	\??\u:	nha.exe
File opened (read-only)	\??\x:	nha.exe
File opened (read-only)	\??\y:	nha.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	nha.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File created	\??\c:\Program Files\kbjnf\nha.exe	fzkko.exe
File opened for modification	\??\c:\Program Files\kbjnf\nha.exe	fzkko.exe
File opened for modification	\??\c:\Program Files\kbjnf	fzkko.exe
File created	\??\c:\Program Files\kbjnf\nhano.dll	fzkko.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	fzkko.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nha.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	71a48f2ce5e665c7b8d058f56e15b5890dca951f3b812e6a85e91ae3379afdae.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
6004	cmd.exe
5692	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	nha.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	nha.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
5692	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4644	nha.exe
4644	nha.exe
4644	nha.exe
4644	nha.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4644	nha.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1968	71a48f2ce5e665c7b8d058f56e15b5890dca951f3b812e6a85e91ae3379afdae.exe
2608	fzkko.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1968 wrote to memory of 6004	1968	71a48f2ce5e665c7b8d058f56e15b5890dca951f3b812e6a85e91ae3379afdae.exe	87
PID 1968 wrote to memory of 6004	1968	71a48f2ce5e665c7b8d058f56e15b5890dca951f3b812e6a85e91ae3379afdae.exe	87
PID 1968 wrote to memory of 6004	1968	71a48f2ce5e665c7b8d058f56e15b5890dca951f3b812e6a85e91ae3379afdae.exe	87
PID 6004 wrote to memory of 5692	6004	cmd.exe	89
PID 6004 wrote to memory of 5692	6004	cmd.exe	89
PID 6004 wrote to memory of 5692	6004	cmd.exe	89
PID 6004 wrote to memory of 2608	6004	cmd.exe	91
PID 6004 wrote to memory of 2608	6004	cmd.exe	91
PID 6004 wrote to memory of 2608	6004	cmd.exe	91
PID 2608 wrote to memory of 4644	2608	fzkko.exe	94
PID 2608 wrote to memory of 4644	2608	fzkko.exe	94
PID 2608 wrote to memory of 4644	2608	fzkko.exe	94

C:\Users\Admin\AppData\Local\Temp\71a48f2ce5e665c7b8d058f56e15b5890dca951f3b812e6a85e91ae3379afdae.exe
"C:\Users\Admin\AppData\Local\Temp\71a48f2ce5e665c7b8d058f56e15b5890dca951f3b812e6a85e91ae3379afdae.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\fzkko.exe "C:\Users\Admin\AppData\Local\Temp\71a48f2ce5e665c7b8d058f56e15b5890dca951f3b812e6a85e91ae3379afdae.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:6004
- - 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:5692
- - C:\Users\Admin\AppData\Local\Temp\fzkko.exe
    C:\Users\Admin\AppData\Local\Temp\\fzkko.exe "C:\Users\Admin\AppData\Local\Temp\71a48f2ce5e665c7b8d058f56e15b5890dca951f3b812e6a85e91ae3379afdae.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:2608
  - - \??\c:\Program Files\kbjnf\nha.exe
      "c:\Program Files\kbjnf\nha.exe" "c:\Program Files\kbjnf\nhano.dll",Compliance C:\Users\Admin\AppData\Local\Temp\fzkko.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:4644

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c c:\Program Files\kbjnf\nha.exe "c:\Program Files\kbjnf\nhano.dll",Compliance
1⤵
PID:5356

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\kbjnf\nha.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
C:\Program Files\kbjnf\nhano.dll

Filesize
141KB

MD5
56e766029a0348b19bb3a2fda494b312

SHA1
a058e00626100a25abe3b91ec6847020f07725c7

SHA256
e4cfdefa5dc8e286e249c77d05cb50d052051a642eb01e065f0339b780f621e5

SHA512
a1c8acc67f6d09a9bcd3581ebf82e5c189df8029905bf48040e0c3ffc71cc5f407e58743da4f3fcbd1e5b047718cb8bb2f7179c555c8a5712bc40f03bf372296

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

Filesize
205KB

MD5
53734e556d464fbfb18f0b59e9b205ce

SHA1
60de09c5ad80c6e205c85e31aa870004995b4414

SHA256
e2f95b65b634dbe364f8de5c66b4fa623a3e9a576d121c6079320b838e1c7776

SHA512
b14ee562c2cd494dfacd237197b9fbd48404e079eeb7d22a681ee0458f5c2af1717cf08319404e703020b6c92d602a64895eb51f795fff11ec0b63ea537e596e

Download Submit
memory/1968-4-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/1968-0-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/1968-2-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/1968-1-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/2608-8-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/2608-9-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/2608-15-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/4644-19-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/4644-20-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/4644-23-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads