gh0strat | 1b5a5cf7fb631971b34931675213f2ee733c4234f5af96f005e6598dbaac2dd3

General

Target

1b5a5cf7fb631971b34931675213f2ee733c4234f5af96f005e6598dbaac2dd3.exe
Size

229KB
MD5

7e45b599c986d098cdd8ec7402a1b7f0
SHA1

a936c82a0542782e07726dff3e79c81495e1e09b
SHA256

1b5a5cf7fb631971b34931675213f2ee733c4234f5af96f005e6598dbaac2dd3
SHA512

f1e3f7e38dbdb764a66f3de635deb81418cdfafa736b1f3b541e04bf8e257eb6c509c31886493883cefaea78e50e2f314f6c419c99e783d7873877d5d878bf7f
SSDEEP

6144:x2vnAaPNJT3lhZ/8tgt79Jad3vqaFlgixK:inAONJJ/CgZ65rXU

Score

10^/10

gh0strat bootkit discovery persistence rat spyware stealer

Malware Config

Extracted

Family

gh0strat

C2

98.126.162.38:3201

http://98.126.162.36:803/

http://98.126.162.37:805/index.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
1992	hokoimuiu.exe

Executes dropped EXE 2 IoCs

pid	Process
1992	hokoimuiu.exe
4776	jqxx.exe

Loads dropped DLL 1 IoCs

pid	Process
4776	jqxx.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-1-5-21-805952410-2104024357-1716932545-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SHR = "c:\\Program Files\\cexfox\\jqxx.exe \"c:\\Program Files\\cexfox\\jqxxq.dll\",Scheduler"	jqxx.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)	\??\x:	jqxx.exe
File opened (read-only)	\??\b:	jqxx.exe
File opened (read-only)	\??\e:	jqxx.exe
File opened (read-only)	\??\g:	jqxx.exe
File opened (read-only)	\??\i:	jqxx.exe
File opened (read-only)	\??\j:	jqxx.exe
File opened (read-only)	\??\l:	jqxx.exe
File opened (read-only)	\??\m:	jqxx.exe
File opened (read-only)	\??\o:	jqxx.exe
File opened (read-only)	\??\n:	jqxx.exe
File opened (read-only)	\??\r:	jqxx.exe
File opened (read-only)	\??\s:	jqxx.exe
File opened (read-only)	\??\u:	jqxx.exe
File opened (read-only)	\??\w:	jqxx.exe
File opened (read-only)	\??\z:	jqxx.exe
File opened (read-only)	\??\k:	jqxx.exe
File opened (read-only)	\??\p:	jqxx.exe
File opened (read-only)	\??\q:	jqxx.exe
File opened (read-only)	\??\t:	jqxx.exe
File opened (read-only)	\??\y:	jqxx.exe
File opened (read-only)	\??\a:	jqxx.exe
File opened (read-only)	\??\h:	jqxx.exe
File opened (read-only)	\??\v:	jqxx.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	jqxx.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\cexfox	hokoimuiu.exe
File created	\??\c:\Program Files\cexfox\jqxxq.dll	hokoimuiu.exe
File created	\??\c:\Program Files\cexfox\jqxx.exe	hokoimuiu.exe
File opened for modification	\??\c:\Program Files\cexfox\jqxx.exe	hokoimuiu.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	hokoimuiu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jqxx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1b5a5cf7fb631971b34931675213f2ee733c4234f5af96f005e6598dbaac2dd3.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
5008	cmd.exe
1668	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	jqxx.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	jqxx.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1668	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4776	jqxx.exe
4776	jqxx.exe
4776	jqxx.exe
4776	jqxx.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4776	jqxx.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3100	1b5a5cf7fb631971b34931675213f2ee733c4234f5af96f005e6598dbaac2dd3.exe
1992	hokoimuiu.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3100 wrote to memory of 5008	3100	1b5a5cf7fb631971b34931675213f2ee733c4234f5af96f005e6598dbaac2dd3.exe	87
PID 3100 wrote to memory of 5008	3100	1b5a5cf7fb631971b34931675213f2ee733c4234f5af96f005e6598dbaac2dd3.exe	87
PID 3100 wrote to memory of 5008	3100	1b5a5cf7fb631971b34931675213f2ee733c4234f5af96f005e6598dbaac2dd3.exe	87
PID 5008 wrote to memory of 1668	5008	cmd.exe	89
PID 5008 wrote to memory of 1668	5008	cmd.exe	89
PID 5008 wrote to memory of 1668	5008	cmd.exe	89
PID 5008 wrote to memory of 1992	5008	cmd.exe	94
PID 5008 wrote to memory of 1992	5008	cmd.exe	94
PID 5008 wrote to memory of 1992	5008	cmd.exe	94
PID 1992 wrote to memory of 4776	1992	hokoimuiu.exe	95
PID 1992 wrote to memory of 4776	1992	hokoimuiu.exe	95
PID 1992 wrote to memory of 4776	1992	hokoimuiu.exe	95

C:\Users\Admin\AppData\Local\Temp\1b5a5cf7fb631971b34931675213f2ee733c4234f5af96f005e6598dbaac2dd3.exe
"C:\Users\Admin\AppData\Local\Temp\1b5a5cf7fb631971b34931675213f2ee733c4234f5af96f005e6598dbaac2dd3.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3100
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\hokoimuiu.exe "C:\Users\Admin\AppData\Local\Temp\1b5a5cf7fb631971b34931675213f2ee733c4234f5af96f005e6598dbaac2dd3.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:5008
- - 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:1668
- - C:\Users\Admin\AppData\Local\Temp\hokoimuiu.exe
    C:\Users\Admin\AppData\Local\Temp\\hokoimuiu.exe "C:\Users\Admin\AppData\Local\Temp\1b5a5cf7fb631971b34931675213f2ee733c4234f5af96f005e6598dbaac2dd3.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:1992
  - - \??\c:\Program Files\cexfox\jqxx.exe
      "c:\Program Files\cexfox\jqxx.exe" "c:\Program Files\cexfox\jqxxq.dll",Scheduler C:\Users\Admin\AppData\Local\Temp\hokoimuiu.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:4776

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c c:\Program Files\cexfox\jqxx.exe "c:\Program Files\cexfox\jqxxq.dll",Scheduler
1⤵
PID:1340

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\cexfox\jqxx.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

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

Filesize
229KB

MD5
97aefb4909b2567690faf57b042a1a1f

SHA1
ab15bc5c0f8eb90ebb20f58a82777ffbc449e346

SHA256
c278a22af7d49b250fde7a326ddae727666afd69c951447c224ed20427e8fbaa

SHA512
230c114f8ec283749b62d14ae911b84f5083d45b9b3f3159ac6e902e7824400191b9bf95a45b1e3d6eebe610b5f9b0be50740eaea4eb5dbc3aa5b98a01808c6c

Download Submit
\??\c:\Program Files\cexfox\jqxxq.dll

Filesize
184KB

MD5
83c66ae77d279a9071b19ac03c9e4954

SHA1
3374f9459261f82bd868f9e65968c98150da4b5c

SHA256
a57574916fd20111bc88805f7079e6bdfb985c6011aac3642e830ece1339a2ca

SHA512
d523d151c881dc345f8b71d5ce2c6660ef6a467216f2c4ec3bd667e2d3c65b9858497d8d7ea59494e4970f61caf8682fecda0aa4b461844c13f8df31b4905f23

Download Submit
memory/1992-10-0x0000000000400000-0x000000000045001D-memory.dmp

Filesize
320KB

Download
memory/1992-9-0x0000000000400000-0x000000000045001D-memory.dmp

Filesize
320KB

Download
memory/1992-16-0x0000000000400000-0x000000000045001D-memory.dmp

Filesize
320KB

Download
memory/3100-5-0x0000000000400000-0x000000000045001D-memory.dmp

Filesize
320KB

Download
memory/3100-0-0x0000000000400000-0x000000000045001D-memory.dmp

Filesize
320KB

Download
memory/3100-1-0x0000000000400000-0x000000000045001D-memory.dmp

Filesize
320KB

Download
memory/3100-2-0x0000000000400000-0x000000000045001D-memory.dmp

Filesize
320KB

Download
memory/4776-20-0x0000000010000000-0x0000000010074000-memory.dmp

Filesize
464KB

Download
memory/4776-21-0x0000000010000000-0x0000000010074000-memory.dmp

Filesize
464KB

Download
memory/4776-24-0x0000000010000000-0x0000000010074000-memory.dmp

Filesize
464KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads