gh0strat | 5c15dfb77e6ebf777995de8713092d59d857adadc12a0fd4457eb3e75a385735

General

Target

5c15dfb77e6ebf777995de8713092d59d857adadc12a0fd4457eb3e75a385735N.exe
Size

112KB
MD5

df4cab6655d82482c76d0510392e1fb0
SHA1

ebe7c66ab923db14d9bcfee88cd357eeb4b55c87
SHA256

5c15dfb77e6ebf777995de8713092d59d857adadc12a0fd4457eb3e75a385735
SHA512

3f205583b99a4237b28c66514abfc0866e6365bff0a4bbfc85f57b0e112887cc493bd7fea6c54dd884833491a1e70e84b90fcb4e7aff678cea75f8e161385dbd
SSDEEP

1536:vqEA70HzLJksPEOajozLElnqiO2Z+dJ/tH:vXTLJkQ7zAV3ZUt

Score

10^/10

gh0strat discovery persistence rat

Malware Config

Extracted

Family

gh0strat

C2

fwq.kuai-go.com

Signatures

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral1/files/0x000b0000000120dc-1.dat	family_gh0strat

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

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\dmw\Parameters\ServiceDll = "C:\\ProgramData\\259439287.dll"	5c15dfb77e6ebf777995de8713092d59d857adadc12a0fd4457eb3e75a385735N.exe

Deletes itself 1 IoCs

pid	Process
2636	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2180	dmw.exe

Loads dropped DLL 7 IoCs

pid	Process
2984	5c15dfb77e6ebf777995de8713092d59d857adadc12a0fd4457eb3e75a385735N.exe
3052	svchost.exe
3052	svchost.exe
2180	dmw.exe
2180	dmw.exe
2180	dmw.exe
2180	dmw.exe

Creates a Windows Service
persistence

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\dmw.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\dmw.exe	svchost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	5c15dfb77e6ebf777995de8713092d59d857adadc12a0fd4457eb3e75a385735N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	dmw.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
2636	cmd.exe
2464	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2464	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2984	5c15dfb77e6ebf777995de8713092d59d857adadc12a0fd4457eb3e75a385735N.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2984	5c15dfb77e6ebf777995de8713092d59d857adadc12a0fd4457eb3e75a385735N.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2984	5c15dfb77e6ebf777995de8713092d59d857adadc12a0fd4457eb3e75a385735N.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2984 wrote to memory of 2636	2984	5c15dfb77e6ebf777995de8713092d59d857adadc12a0fd4457eb3e75a385735N.exe	32
PID 2984 wrote to memory of 2636	2984	5c15dfb77e6ebf777995de8713092d59d857adadc12a0fd4457eb3e75a385735N.exe	32
PID 2984 wrote to memory of 2636	2984	5c15dfb77e6ebf777995de8713092d59d857adadc12a0fd4457eb3e75a385735N.exe	32
PID 2984 wrote to memory of 2636	2984	5c15dfb77e6ebf777995de8713092d59d857adadc12a0fd4457eb3e75a385735N.exe	32
PID 2636 wrote to memory of 2464	2636	cmd.exe	34
PID 2636 wrote to memory of 2464	2636	cmd.exe	34
PID 2636 wrote to memory of 2464	2636	cmd.exe	34
PID 2636 wrote to memory of 2464	2636	cmd.exe	34
PID 3052 wrote to memory of 2180	3052	svchost.exe	36
PID 3052 wrote to memory of 2180	3052	svchost.exe	36
PID 3052 wrote to memory of 2180	3052	svchost.exe	36
PID 3052 wrote to memory of 2180	3052	svchost.exe	36

C:\Users\Admin\AppData\Local\Temp\5c15dfb77e6ebf777995de8713092d59d857adadc12a0fd4457eb3e75a385735N.exe
"C:\Users\Admin\AppData\Local\Temp\5c15dfb77e6ebf777995de8713092d59d857adadc12a0fd4457eb3e75a385735N.exe"
1⤵
- Server Software Component: Terminal Services DLL
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2984
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 -n 1 && del /f/q "C:\Users\Admin\AppData\Local\Temp\5c15dfb77e6ebf777995de8713092d59d857adadc12a0fd4457eb3e75a385735N.exe"
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2636
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 1
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2464

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "dmw"
1⤵
PID:3056

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "dmw"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3052
- C:\Windows\SysWOW64\dmw.exe
  C:\Windows\system32\dmw.exe "c:\programdata\259439287.dll",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2180

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Server Software Component

1

T1505

Terminal Services DLL

1

T1505.005

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Remote System Discovery

1

T1018

System Information Discovery

1

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

Command and Control

Exfiltration

Impact

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Downloads

\ProgramData\259439287.dll

Filesize
37KB

MD5
07c9f184d5cf6709a94807845c7ab382

SHA1
280c71e47ffdf5584cdde0542ef63dba725bf66f

SHA256
57ab6db208a1f1431eec74ca7ee5098ca6173850973f88a3f50a1d55d99b1f52

SHA512
a7f3250f20c4fd523ebac921a99d675ecdebed962f0440ad813391dd6a7ba0d98e02427aa94f450be76c470ebb1ae51bd85fbbb19d74a9fb34de33524298408d

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\Windows\SysWOW64\dmw.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

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Analysis

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