gh0strat | 41c40a3bba776f610cf0aff32c8e78efe797e100f999d755d2feab820fc037e4

General

Target

41c40a3bba776f610cf0aff32c8e78efe797e100f999d755d2feab820fc037e4.exe
Size

1.3MB
MD5

3d8a630c180e93afabc980eccc108606
SHA1

eef6bac852712611ae9897bc1d6aaca0ca40426b
SHA256

41c40a3bba776f610cf0aff32c8e78efe797e100f999d755d2feab820fc037e4
SHA512

508ce53f7d808ca85105021133553b2b9b191cac8b3f48cda62c7d60169a632626d37e0dba8520d44e9e1ba6c771dec46b6f61be1d8b694739b51d9aa6fe5354
SSDEEP

24576:dOyHutimZ9VSly2hVvHW6qMnSbTBBhBMNJ:QHPkVOBTK

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
behavioral1/memory/3020-0-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral1/memory/2892-18-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/memory/3020-0-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral1/memory/2892-18-0x0000000010000000-0x000000001019F000-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	sainbox.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"	sainbox.exe

Deletes itself 1 IoCs

pid	Process
540	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
2860	sainbox.exe
2892	sainbox.exe

Loads dropped DLL 1 IoCs

pid	Process
2860	sainbox.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\sainbox.exe	41c40a3bba776f610cf0aff32c8e78efe797e100f999d755d2feab820fc037e4.exe
File created	C:\Windows\SysWOW64\sainbox.exe	41c40a3bba776f610cf0aff32c8e78efe797e100f999d755d2feab820fc037e4.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	41c40a3bba776f610cf0aff32c8e78efe797e100f999d755d2feab820fc037e4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sainbox.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sainbox.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.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
540	cmd.exe
2580	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2580	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2892	sainbox.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3020	41c40a3bba776f610cf0aff32c8e78efe797e100f999d755d2feab820fc037e4.exe
Token: SeLoadDriverPrivilege	2892	sainbox.exe
Token: 33	2892	sainbox.exe
Token: SeIncBasePriorityPrivilege	2892	sainbox.exe
Token: 33	2892	sainbox.exe
Token: SeIncBasePriorityPrivilege	2892	sainbox.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3020 wrote to memory of 540	3020	41c40a3bba776f610cf0aff32c8e78efe797e100f999d755d2feab820fc037e4.exe	31
PID 3020 wrote to memory of 540	3020	41c40a3bba776f610cf0aff32c8e78efe797e100f999d755d2feab820fc037e4.exe	31
PID 3020 wrote to memory of 540	3020	41c40a3bba776f610cf0aff32c8e78efe797e100f999d755d2feab820fc037e4.exe	31
PID 3020 wrote to memory of 540	3020	41c40a3bba776f610cf0aff32c8e78efe797e100f999d755d2feab820fc037e4.exe	31
PID 2860 wrote to memory of 2892	2860	sainbox.exe	32
PID 2860 wrote to memory of 2892	2860	sainbox.exe	32
PID 2860 wrote to memory of 2892	2860	sainbox.exe	32
PID 2860 wrote to memory of 2892	2860	sainbox.exe	32
PID 540 wrote to memory of 2580	540	cmd.exe	34
PID 540 wrote to memory of 2580	540	cmd.exe	34
PID 540 wrote to memory of 2580	540	cmd.exe	34
PID 540 wrote to memory of 2580	540	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\41c40a3bba776f610cf0aff32c8e78efe797e100f999d755d2feab820fc037e4.exe
"C:\Users\Admin\AppData\Local\Temp\41c40a3bba776f610cf0aff32c8e78efe797e100f999d755d2feab820fc037e4.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3020
- 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\41C40A~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:540
- - 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:2580

C:\Windows\SysWOW64\sainbox.exe
C:\Windows\SysWOW64\sainbox.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2860
- C:\Windows\SysWOW64\sainbox.exe
  C:\Windows\SysWOW64\sainbox.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: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:2892

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\sainbox.exe

Filesize
1.3MB

MD5
3d8a630c180e93afabc980eccc108606

SHA1
eef6bac852712611ae9897bc1d6aaca0ca40426b

SHA256
41c40a3bba776f610cf0aff32c8e78efe797e100f999d755d2feab820fc037e4

SHA512
508ce53f7d808ca85105021133553b2b9b191cac8b3f48cda62c7d60169a632626d37e0dba8520d44e9e1ba6c771dec46b6f61be1d8b694739b51d9aa6fe5354

Download Submit
memory/2892-18-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/3020-0-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads