gh0strat | 5dec1a8df4b2b5a8663cf908d61eb5f7b77e7868bddc40b842239edbf49e4bae

General

Target

5dec1a8df4b2b5a8663cf908d61eb5f7b77e7868bddc40b842239edbf49e4bae.exe
Size

207KB
MD5

1632d73a01e86f19487d9cc009d71b08
SHA1

8e82da1a899bf42311423ed9ef737cf45f3630fd
SHA256

5dec1a8df4b2b5a8663cf908d61eb5f7b77e7868bddc40b842239edbf49e4bae
SHA512

b060b0cee0472933db7423e1775651598710fe86c7eaea795a6acddaf71df708eff1b5debaa9bba9687d9c96d2bde2175dbb884d4962907be6503be622e10ac9
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
3936	bdzkdyk.exe

Executes dropped EXE 2 IoCs

pid	Process
3936	bdzkdyk.exe
4896	wqgaac.exe

Loads dropped DLL 1 IoCs

pid	Process
4896	wqgaac.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-1-5-21-250031470-1197856012-2659781506-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Depend = "c:\\Program Files\\vjwmlcis\\wqgaac.exe \"c:\\Program Files\\vjwmlcis\\wqgaac.dll\",Compliance"	wqgaac.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)	\??\l:	wqgaac.exe
File opened (read-only)	\??\r:	wqgaac.exe
File opened (read-only)	\??\t:	wqgaac.exe
File opened (read-only)	\??\n:	wqgaac.exe
File opened (read-only)	\??\w:	wqgaac.exe
File opened (read-only)	\??\y:	wqgaac.exe
File opened (read-only)	\??\m:	wqgaac.exe
File opened (read-only)	\??\q:	wqgaac.exe
File opened (read-only)	\??\a:	wqgaac.exe
File opened (read-only)	\??\b:	wqgaac.exe
File opened (read-only)	\??\e:	wqgaac.exe
File opened (read-only)	\??\h:	wqgaac.exe
File opened (read-only)	\??\s:	wqgaac.exe
File opened (read-only)	\??\v:	wqgaac.exe
File opened (read-only)	\??\i:	wqgaac.exe
File opened (read-only)	\??\u:	wqgaac.exe
File opened (read-only)	\??\x:	wqgaac.exe
File opened (read-only)	\??\z:	wqgaac.exe
File opened (read-only)	\??\o:	wqgaac.exe
File opened (read-only)	\??\p:	wqgaac.exe
File opened (read-only)	\??\g:	wqgaac.exe
File opened (read-only)	\??\j:	wqgaac.exe
File opened (read-only)	\??\k:	wqgaac.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	wqgaac.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\vjwmlcis	bdzkdyk.exe
File created	\??\c:\Program Files\vjwmlcis\wqgaac.dll	bdzkdyk.exe
File created	\??\c:\Program Files\vjwmlcis\wqgaac.exe	bdzkdyk.exe
File opened for modification	\??\c:\Program Files\vjwmlcis\wqgaac.exe	bdzkdyk.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	bdzkdyk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wqgaac.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5dec1a8df4b2b5a8663cf908d61eb5f7b77e7868bddc40b842239edbf49e4bae.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
5100	cmd.exe
3644	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	wqgaac.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	wqgaac.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3644	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4896	wqgaac.exe
4896	wqgaac.exe
4896	wqgaac.exe
4896	wqgaac.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4896	wqgaac.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2512	5dec1a8df4b2b5a8663cf908d61eb5f7b77e7868bddc40b842239edbf49e4bae.exe
3936	bdzkdyk.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2512 wrote to memory of 5100	2512	5dec1a8df4b2b5a8663cf908d61eb5f7b77e7868bddc40b842239edbf49e4bae.exe	86
PID 2512 wrote to memory of 5100	2512	5dec1a8df4b2b5a8663cf908d61eb5f7b77e7868bddc40b842239edbf49e4bae.exe	86
PID 2512 wrote to memory of 5100	2512	5dec1a8df4b2b5a8663cf908d61eb5f7b77e7868bddc40b842239edbf49e4bae.exe	86
PID 5100 wrote to memory of 3644	5100	cmd.exe	88
PID 5100 wrote to memory of 3644	5100	cmd.exe	88
PID 5100 wrote to memory of 3644	5100	cmd.exe	88
PID 5100 wrote to memory of 3936	5100	cmd.exe	92
PID 5100 wrote to memory of 3936	5100	cmd.exe	92
PID 5100 wrote to memory of 3936	5100	cmd.exe	92
PID 3936 wrote to memory of 4896	3936	bdzkdyk.exe	93
PID 3936 wrote to memory of 4896	3936	bdzkdyk.exe	93
PID 3936 wrote to memory of 4896	3936	bdzkdyk.exe	93

C:\Users\Admin\AppData\Local\Temp\5dec1a8df4b2b5a8663cf908d61eb5f7b77e7868bddc40b842239edbf49e4bae.exe
"C:\Users\Admin\AppData\Local\Temp\5dec1a8df4b2b5a8663cf908d61eb5f7b77e7868bddc40b842239edbf49e4bae.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2512
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\bdzkdyk.exe "C:\Users\Admin\AppData\Local\Temp\5dec1a8df4b2b5a8663cf908d61eb5f7b77e7868bddc40b842239edbf49e4bae.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:5100
- - 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:3644
- - C:\Users\Admin\AppData\Local\Temp\bdzkdyk.exe
    C:\Users\Admin\AppData\Local\Temp\\bdzkdyk.exe "C:\Users\Admin\AppData\Local\Temp\5dec1a8df4b2b5a8663cf908d61eb5f7b77e7868bddc40b842239edbf49e4bae.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:3936
  - - \??\c:\Program Files\vjwmlcis\wqgaac.exe
      "c:\Program Files\vjwmlcis\wqgaac.exe" "c:\Program Files\vjwmlcis\wqgaac.dll",Compliance C:\Users\Admin\AppData\Local\Temp\bdzkdyk.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:4896

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\vjwmlcis\wqgaac.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

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

Filesize
208KB

MD5
deae45c47416f13e38b9ea3c1e04ab19

SHA1
377218555304113bdbc244bd3dc982a166da1aa5

SHA256
886891f8e06f4dc0f5dcdebb315056a65255b2a05d5459734db8ee70a0a23933

SHA512
2db597a685d0b26030a71dde50ffcbb92cd0cf409b6cd33bc8a0ba83a8d15c5d5b6dca887b3740b4217791be7e0d28088f541e90272a6d7da493f9c199b53125

Download Submit
\??\c:\Program Files\vjwmlcis\wqgaac.dll

Filesize
141KB

MD5
35365b8c8593600d09f14f6115a48832

SHA1
1f5ea9ae8e2eaffae30eeba8be8f2cc8080e752a

SHA256
07ea7f760a6f018df48102273810af41971d69500932c7f0a393348dbccb63c9

SHA512
5b3bbca5a415b76952b9ed02a806590af9799c2c786b7b6e06f25d9e95746962e042fe86ec8ed6ffb39f1d1aad2c1b99cb5248e8d86f07a7270b3e08b2fa5c3a

Download Submit
memory/2512-5-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/2512-0-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/2512-1-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/2512-2-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/3936-10-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/3936-9-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/3936-15-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/4896-19-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/4896-20-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/4896-23-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads