gh0strat | 34a2b9f979153d8ee8eb5141061665a9a06e96e573e3eecb02fb3f8eecdaae93

General

Target

8496e5d746b87976c18e6de59fe0febf97218bfe87028499a5ebb9847281a835.exe
Size

1.4MB
MD5

5af8688f2abe58dfefe8d2643c1cdbee
SHA1

87322c1f85f9c3d692dd85780d355a7b73d0a24d
SHA256

8496e5d746b87976c18e6de59fe0febf97218bfe87028499a5ebb9847281a835
SHA512

a058e56ead41706fabae54bb8670f3121984c6aa2ce814752942284220caa67f66243473697c3dae19bcdbf749c261f89b6211b1f3fa8fdd803d72052b024670
SSDEEP

24576:3ydQRKyY6ZZaVQRpdjJcwOUfuv1UtPGO0K48:3G5z6jJoyil8

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan

Malware Config

Signatures

Detect PurpleFox Rootkit 2 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/4588-1-0x0000000010000000-0x00000000101B0000-memory.dmp	purplefox_rootkit
behavioral2/memory/3428-12-0x0000000010000000-0x00000000101B0000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral2/memory/4588-1-0x0000000010000000-0x00000000101B0000-memory.dmp	family_gh0strat
behavioral2/memory/3428-12-0x0000000010000000-0x00000000101B0000-memory.dmp	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
PurpleFox
PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.
rootkit trojan purplefox
Purplefox family
purplefox

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File created	C:\Windows\system32\drivers\QAssist.sys	Tlctl.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys"	Tlctl.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Tlctl.exe	8496e5d746b87976c18e6de59fe0febf97218bfe87028499a5ebb9847281a835.exe
File opened for modification	C:\Windows\SysWOW64\Tlctl.exe	8496e5d746b87976c18e6de59fe0febf97218bfe87028499a5ebb9847281a835.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\arphaCrashReport.exe	8496e5d746b87976c18e6de59fe0febf97218bfe87028499a5ebb9847281a835.exe
File opened for modification	C:\Windows\arphaCrashReport.exe	8496e5d746b87976c18e6de59fe0febf97218bfe87028499a5ebb9847281a835.exe

Executes dropped EXE 2 IoCs

pid	Process
3428	Tlctl.exe
3676	Tlctl.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	Tlctl.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	8496e5d746b87976c18e6de59fe0febf97218bfe87028499a5ebb9847281a835.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Tlctl.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
640	cmd.exe
3952	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3952	PING.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3676	Tlctl.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
3676	Tlctl.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4588	8496e5d746b87976c18e6de59fe0febf97218bfe87028499a5ebb9847281a835.exe
Token: SeLoadDriverPrivilege	3676	Tlctl.exe
Token: 33	3676	Tlctl.exe
Token: SeIncBasePriorityPrivilege	3676	Tlctl.exe
Token: 33	3676	Tlctl.exe
Token: SeIncBasePriorityPrivilege	3676	Tlctl.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4588 wrote to memory of 640	4588	8496e5d746b87976c18e6de59fe0febf97218bfe87028499a5ebb9847281a835.exe	85
PID 4588 wrote to memory of 640	4588	8496e5d746b87976c18e6de59fe0febf97218bfe87028499a5ebb9847281a835.exe	85
PID 4588 wrote to memory of 640	4588	8496e5d746b87976c18e6de59fe0febf97218bfe87028499a5ebb9847281a835.exe	85
PID 3428 wrote to memory of 3676	3428	Tlctl.exe	87
PID 3428 wrote to memory of 3676	3428	Tlctl.exe	87
PID 3428 wrote to memory of 3676	3428	Tlctl.exe	87
PID 640 wrote to memory of 3952	640	cmd.exe	88
PID 640 wrote to memory of 3952	640	cmd.exe	88
PID 640 wrote to memory of 3952	640	cmd.exe	88

C:\Users\Admin\AppData\Local\Temp\8496e5d746b87976c18e6de59fe0febf97218bfe87028499a5ebb9847281a835.exe
"C:\Users\Admin\AppData\Local\Temp\8496e5d746b87976c18e6de59fe0febf97218bfe87028499a5ebb9847281a835.exe"
1⤵
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4588
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Users\Admin\AppData\Local\Temp\8496E5~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:640
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 2 127.0.0.1
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3952

C:\Windows\SysWOW64\Tlctl.exe
C:\Windows\SysWOW64\Tlctl.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3428
- C:\Windows\SysWOW64\Tlctl.exe
  C:\Windows\SysWOW64\Tlctl.exe -acsi
  2⤵
  - Drops file in Drivers directory
  - Sets service image path in registry
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:3676

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

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Remote System Discovery

1

T1018

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

C:\Windows\SysWOW64\Tlctl.exe

Filesize
1.4MB

MD5
5af8688f2abe58dfefe8d2643c1cdbee

SHA1
87322c1f85f9c3d692dd85780d355a7b73d0a24d

SHA256
8496e5d746b87976c18e6de59fe0febf97218bfe87028499a5ebb9847281a835

SHA512
a058e56ead41706fabae54bb8670f3121984c6aa2ce814752942284220caa67f66243473697c3dae19bcdbf749c261f89b6211b1f3fa8fdd803d72052b024670

Download Submit
memory/3428-12-0x0000000010000000-0x00000000101B0000-memory.dmp

Filesize
1.7MB

Download
memory/4588-1-0x0000000010000000-0x00000000101B0000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads