gh0strat | 1b767d6b6c083960b4b3a91dddcc26ffec1337482ca645db358d4216d34c68f2

General

Target

1b767d6b6c083960b4b3a91dddcc26ffec1337482ca645db358d4216d34c68f2.exe
Size

188KB
MD5

ca28b1d6bd13f875666b6d17954501ac
SHA1

0453070d9edbac07b8bde3709d668e4eda8f3d33
SHA256

1b767d6b6c083960b4b3a91dddcc26ffec1337482ca645db358d4216d34c68f2
SHA512

b3b78549b0fa7379176c44f09a0580a4cb43dc5d19a358888e068b8065d3db38eea3530b56317b09f50e49b6b3b32e77c97f58f3023417600530d2ff6d31550c
SSDEEP

3072:HP5vwsQ9qKMJn3W2c3/bFqssLfRIG2MK+39RKPQVyFXu:vNKMJnGFYss9q23S+G

Score

10^/10

gh0strat bootkit discovery persistence rat spyware stealer

Malware Config

Extracted

Family

gh0strat

C2

107.163.56.251:6658

http://107.163.56.240:18963/main.php

http://107.163.56.241:18530/

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

Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Active Setup\Installed Components	explorer.exe

Deletes itself 1 IoCs

pid	Process
2216	ioycb.exe

Executes dropped EXE 2 IoCs

pid	Process
2216	ioycb.exe
2928	ohp.exe

Loads dropped DLL 7 IoCs

pid	Process
2452	cmd.exe
2452	cmd.exe
2216	ioycb.exe
2928	ohp.exe
2928	ohp.exe
2928	ohp.exe
2928	ohp.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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\SHR = "c:\\Program Files\\yugpi\\ohp.exe \"c:\\Program Files\\yugpi\\ohpch.dll\",Scheduler"	ohp.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)	\??\b:	ohp.exe
File opened (read-only)	\??\k:	ohp.exe
File opened (read-only)	\??\n:	ohp.exe
File opened (read-only)	\??\t:	ohp.exe
File opened (read-only)	\??\v:	ohp.exe
File opened (read-only)	\??\e:	ohp.exe
File opened (read-only)	\??\m:	ohp.exe
File opened (read-only)	\??\r:	ohp.exe
File opened (read-only)	\??\s:	ohp.exe
File opened (read-only)	\??\w:	ohp.exe
File opened (read-only)	\??\z:	ohp.exe
File opened (read-only)	\??\h:	ohp.exe
File opened (read-only)	\??\i:	ohp.exe
File opened (read-only)	\??\j:	ohp.exe
File opened (read-only)	\??\p:	ohp.exe
File opened (read-only)	\??\u:	ohp.exe
File opened (read-only)	\??\x:	ohp.exe
File opened (read-only)	\??\a:	ohp.exe
File opened (read-only)	\??\g:	ohp.exe
File opened (read-only)	\??\l:	ohp.exe
File opened (read-only)	\??\o:	ohp.exe
File opened (read-only)	\??\q:	ohp.exe
File opened (read-only)	\??\y:	ohp.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	ohp.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\yugpi\ohp.exe	ioycb.exe
File opened for modification	\??\c:\Program Files\yugpi	ioycb.exe
File created	\??\c:\Program Files\yugpi\ohpch.dll	ioycb.exe
File created	\??\c:\Program Files\yugpi\ohp.exe	ioycb.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	1b767d6b6c083960b4b3a91dddcc26ffec1337482ca645db358d4216d34c68f2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ioycb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ohp.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
2452	cmd.exe
2920	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	ohp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	ohp.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_Classes\Local Settings	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	explorer.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2920	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2928	ohp.exe
2928	ohp.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3048	explorer.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

description	pid	Process
Token: SeDebugPrivilege	2928	ohp.exe
Token: SeShutdownPrivilege	3048	explorer.exe
Token: SeShutdownPrivilege	3048	explorer.exe
Token: SeShutdownPrivilege	3048	explorer.exe
Token: SeShutdownPrivilege	3048	explorer.exe
Token: SeShutdownPrivilege	3048	explorer.exe
Token: SeShutdownPrivilege	3048	explorer.exe
Token: SeShutdownPrivilege	3048	explorer.exe
Token: SeShutdownPrivilege	3048	explorer.exe
Token: SeShutdownPrivilege	3048	explorer.exe
Token: SeShutdownPrivilege	3048	explorer.exe
Token: 33	2576	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	2576	AUDIODG.EXE
Token: 33	2576	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	2576	AUDIODG.EXE
Token: SeShutdownPrivilege	3048	explorer.exe
Token: SeShutdownPrivilege	3048	explorer.exe

Suspicious use of FindShellTrayWindow 24 IoCs

pid	Process
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe

Suspicious use of SendNotifyMessage 16 IoCs

pid	Process
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe
3048	explorer.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2340	1b767d6b6c083960b4b3a91dddcc26ffec1337482ca645db358d4216d34c68f2.exe
2216	ioycb.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2340 wrote to memory of 2452	2340	1b767d6b6c083960b4b3a91dddcc26ffec1337482ca645db358d4216d34c68f2.exe	28
PID 2340 wrote to memory of 2452	2340	1b767d6b6c083960b4b3a91dddcc26ffec1337482ca645db358d4216d34c68f2.exe	28
PID 2340 wrote to memory of 2452	2340	1b767d6b6c083960b4b3a91dddcc26ffec1337482ca645db358d4216d34c68f2.exe	28
PID 2340 wrote to memory of 2452	2340	1b767d6b6c083960b4b3a91dddcc26ffec1337482ca645db358d4216d34c68f2.exe	28
PID 2452 wrote to memory of 2920	2452	cmd.exe	30
PID 2452 wrote to memory of 2920	2452	cmd.exe	30
PID 2452 wrote to memory of 2920	2452	cmd.exe	30
PID 2452 wrote to memory of 2920	2452	cmd.exe	30
PID 2452 wrote to memory of 2216	2452	cmd.exe	31
PID 2452 wrote to memory of 2216	2452	cmd.exe	31
PID 2452 wrote to memory of 2216	2452	cmd.exe	31
PID 2452 wrote to memory of 2216	2452	cmd.exe	31
PID 2216 wrote to memory of 2928	2216	ioycb.exe	32
PID 2216 wrote to memory of 2928	2216	ioycb.exe	32
PID 2216 wrote to memory of 2928	2216	ioycb.exe	32
PID 2216 wrote to memory of 2928	2216	ioycb.exe	32

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\1b767d6b6c083960b4b3a91dddcc26ffec1337482ca645db358d4216d34c68f2.exe
"C:\Users\Admin\AppData\Local\Temp\1b767d6b6c083960b4b3a91dddcc26ffec1337482ca645db358d4216d34c68f2.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2340
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\ioycb.exe "C:\Users\Admin\AppData\Local\Temp\1b767d6b6c083960b4b3a91dddcc26ffec1337482ca645db358d4216d34c68f2.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2452
- - 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:2920
- - C:\Users\Admin\AppData\Local\Temp\ioycb.exe
    C:\Users\Admin\AppData\Local\Temp\\ioycb.exe "C:\Users\Admin\AppData\Local\Temp\1b767d6b6c083960b4b3a91dddcc26ffec1337482ca645db358d4216d34c68f2.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:2216
  - - \??\c:\Program Files\yugpi\ohp.exe
      "c:\Program Files\yugpi\ohp.exe" "c:\Program Files\yugpi\ohpch.dll",Scheduler C:\Users\Admin\AppData\Local\Temp\ioycb.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:2928

C:\Windows\explorer.exe
explorer.exe
1⤵
- Boot or Logon Autostart Execution: Active Setup
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:3048

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x250
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2576

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

2

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\ioycb.exe

Filesize
188KB

MD5
c99a616cdbda5bc78f2022b1324fa364

SHA1
69c41a0d105607919a7d25173192ee4398955fef

SHA256
f02fa09457a03476e9e7bd51475d05fcff4c8c0b63f0e26d9aceb0ca61e0eac5

SHA512
5e4edbaed091ccdfad0651e1608ebb60945e30a489f3b674353ffd0564c144c22000a4b974eb8b1355d80771ac2a27929c14e02909628032b2ee9112bae61b6b

Download Submit
\??\c:\Program Files\yugpi\ohpch.dll

Filesize
135KB

MD5
08ecedc0cdbe848da16e90f426811122

SHA1
e0a5505eb212f561c3db1023c4791c022b9d1093

SHA256
5dc770d891efa22da463288fb57f005b03edf5cc2f0af610490c171694f3806a

SHA512
0345c7f70d85f9fb051849ffd8f21040ad0c5ed35fd765c2ef328d5946baf22012431f118ef9d292eb592e00fd4dd7aa44e59f6b7ce9605548ab63f09cad3da7

Download Submit
\Program Files\yugpi\ohp.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/2216-11-0x0000000000400000-0x0000000000443208-memory.dmp

Filesize
268KB

Download
memory/2216-12-0x0000000000400000-0x0000000000443208-memory.dmp

Filesize
268KB

Download
memory/2216-10-0x0000000000400000-0x0000000000443208-memory.dmp

Filesize
268KB

Download
memory/2216-19-0x0000000000400000-0x0000000000443208-memory.dmp

Filesize
268KB

Download
memory/2340-1-0x0000000000400000-0x0000000000443208-memory.dmp

Filesize
268KB

Download
memory/2340-2-0x0000000000400000-0x0000000000443208-memory.dmp

Filesize
268KB

Download
memory/2340-4-0x0000000000400000-0x0000000000443208-memory.dmp

Filesize
268KB

Download
memory/2340-0-0x0000000000400000-0x0000000000443208-memory.dmp

Filesize
268KB

Download
memory/2452-7-0x0000000000120000-0x0000000000164000-memory.dmp

Filesize
272KB

Download
memory/2928-23-0x0000000010000000-0x000000001004C000-memory.dmp

Filesize
304KB

Download
memory/2928-29-0x0000000010000000-0x000000001004C000-memory.dmp

Filesize
304KB

Download
memory/2928-28-0x0000000010000000-0x000000001004C000-memory.dmp

Filesize
304KB

Download
memory/2928-30-0x0000000010000000-0x000000001004C000-memory.dmp

Filesize
304KB

Download
memory/2928-34-0x0000000010000000-0x000000001004C000-memory.dmp

Filesize
304KB

Download
memory/2928-35-0x0000000010000000-0x000000001004C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads