gh0strat | 8b5b981504920d28a532149fff700b3aa40b2ec6ba0e5311825132901f830ed9

General

Target

8b5b981504920d28a532149fff700b3aa40b2ec6ba0e5311825132901f830ed9.exe
Size

1.3MB
MD5

63d305da14d288d9b58b6e6b396408d3
SHA1

27d885c6f79572cb328b16fc8747c04f9b3ee318
SHA256

8b5b981504920d28a532149fff700b3aa40b2ec6ba0e5311825132901f830ed9
SHA512

85887590c42e3c375e47c2207f1446501a439406a28775204a5cb99737b23f5688e689d917c022c417fe4e4309f5aa88fb5f6fb52cf3f7eab9642b9067832a04
SSDEEP

24576:dOyHutimZ9VSly2hVvHW6qMnSbTBBhBMNL:QHPkVOBTK

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan

Malware Config

Signatures

Detect PurpleFox Rootkit 3 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/4044-0-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/1684-10-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/4736-17-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/4044-0-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/1684-10-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/4736-17-0x0000000010000000-0x000000001019F000-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

Executes dropped EXE 2 IoCs

pid	Process
1684	sainbox.exe
4736	sainbox.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	8b5b981504920d28a532149fff700b3aa40b2ec6ba0e5311825132901f830ed9.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
3120	cmd.exe
2664	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2664	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
4736	sainbox.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4044	8b5b981504920d28a532149fff700b3aa40b2ec6ba0e5311825132901f830ed9.exe
Token: SeLoadDriverPrivilege	4736	sainbox.exe
Token: 33	4736	sainbox.exe
Token: SeIncBasePriorityPrivilege	4736	sainbox.exe
Token: 33	4736	sainbox.exe
Token: SeIncBasePriorityPrivilege	4736	sainbox.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4044 wrote to memory of 3120	4044	8b5b981504920d28a532149fff700b3aa40b2ec6ba0e5311825132901f830ed9.exe	85
PID 4044 wrote to memory of 3120	4044	8b5b981504920d28a532149fff700b3aa40b2ec6ba0e5311825132901f830ed9.exe	85
PID 4044 wrote to memory of 3120	4044	8b5b981504920d28a532149fff700b3aa40b2ec6ba0e5311825132901f830ed9.exe	85
PID 1684 wrote to memory of 4736	1684	sainbox.exe	87
PID 1684 wrote to memory of 4736	1684	sainbox.exe	87
PID 1684 wrote to memory of 4736	1684	sainbox.exe	87
PID 3120 wrote to memory of 2664	3120	cmd.exe	88
PID 3120 wrote to memory of 2664	3120	cmd.exe	88
PID 3120 wrote to memory of 2664	3120	cmd.exe	88

C:\Users\Admin\AppData\Local\Temp\8b5b981504920d28a532149fff700b3aa40b2ec6ba0e5311825132901f830ed9.exe
"C:\Users\Admin\AppData\Local\Temp\8b5b981504920d28a532149fff700b3aa40b2ec6ba0e5311825132901f830ed9.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4044
- 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\8B5B98~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3120
- - 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:2664

C:\ProgramData\Application Data\Storm\update\sainbox.exe
"C:\ProgramData\Application Data\Storm\update\sainbox.exe" -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1684
- C:\ProgramData\Application Data\Storm\update\sainbox.exe
  "C:\ProgramData\Application Data\Storm\update\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:4736

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:\ProgramData\Storm\update\sainbox.exe

Filesize
1.3MB

MD5
63d305da14d288d9b58b6e6b396408d3

SHA1
27d885c6f79572cb328b16fc8747c04f9b3ee318

SHA256
8b5b981504920d28a532149fff700b3aa40b2ec6ba0e5311825132901f830ed9

SHA512
85887590c42e3c375e47c2207f1446501a439406a28775204a5cb99737b23f5688e689d917c022c417fe4e4309f5aa88fb5f6fb52cf3f7eab9642b9067832a04

Download Submit
memory/1684-10-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/4044-0-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/4736-17-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads