gh0strat | eb990076712782d8be8bfd52d94585f6e2e6d86d53c2ecff28036f48b629b468

General

Target
eb990076712782d8be8bfd52d94585f6e2e6d86d53c2ecff28036f48b629b468.exe
Size 1.3MB
Sample240616-mcbx4stbrn
SHA256 eb990076712782d8be8bfd52d94585f6e2e6d86d53c2ecff28036f48b629b468
MD5 34ad367bddc3ccef69c375f87d7ab200
SHA1 18a11a0b4c809ad309b05cf0c66b527ae46f4baa
SHA512 6dfc7c72b2b4c2e4f35acede750c19ab761be86a7763edfd4d41a5929e5ef1ad411ff42647befd57ef43582367ebb3b162cee6cdd3d4b5218db351c8e5357a2a
SSDEEP 24576:dOyHutimZ9VSly2hVvHW6qMnSbTBBhBMN1:QHPkVOBTK
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan

Malware Config

Signatures

Detect PurpleFox Rootkit 3 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/3112-0-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/5072-11-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/4496-18-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/3112-0-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/5072-11-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/4496-18-0x0000000010000000-0x000000001019F000-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
PurpleFox
PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.
rootkit trojan 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
5072	sainbox.exe
4496	sainbox.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\sainbox.exe	eb990076712782d8be8bfd52d94585f6e2e6d86d53c2ecff28036f48b629b468.exe
File created	C:\Windows\SysWOW64\sainbox.exe	eb990076712782d8be8bfd52d94585f6e2e6d86d53c2ecff28036f48b629b468.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3624	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
4496	sainbox.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3112	eb990076712782d8be8bfd52d94585f6e2e6d86d53c2ecff28036f48b629b468.exe
Token: SeLoadDriverPrivilege	4496	sainbox.exe
Token: 33	4496	sainbox.exe
Token: SeIncBasePriorityPrivilege	4496	sainbox.exe
Token: 33	4496	sainbox.exe
Token: SeIncBasePriorityPrivilege	4496	sainbox.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3112 wrote to memory of 1064	3112	eb990076712782d8be8bfd52d94585f6e2e6d86d53c2ecff28036f48b629b468.exe	82
PID 3112 wrote to memory of 1064	3112	eb990076712782d8be8bfd52d94585f6e2e6d86d53c2ecff28036f48b629b468.exe	82
PID 3112 wrote to memory of 1064	3112	eb990076712782d8be8bfd52d94585f6e2e6d86d53c2ecff28036f48b629b468.exe	82
PID 5072 wrote to memory of 4496	5072	sainbox.exe	83
PID 5072 wrote to memory of 4496	5072	sainbox.exe	83
PID 5072 wrote to memory of 4496	5072	sainbox.exe	83
PID 1064 wrote to memory of 3624	1064	cmd.exe	86
PID 1064 wrote to memory of 3624	1064	cmd.exe	86
PID 1064 wrote to memory of 3624	1064	cmd.exe	86

C:\Users\Admin\AppData\Local\Temp\eb990076712782d8be8bfd52d94585f6e2e6d86d53c2ecff28036f48b629b468.exe
"C:\Users\Admin\AppData\Local\Temp\eb990076712782d8be8bfd52d94585f6e2e6d86d53c2ecff28036f48b629b468.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3112
- 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\EB9900~1.EXE > nul
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1064
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 2 127.0.0.1
    3⤵
    - Runs ping.exe
    PID:3624

C:\Windows\SysWOW64\sainbox.exe
C:\Windows\SysWOW64\sainbox.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:5072
- 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
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:4496

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

sainbox.exe

Path C:\Windows\SysWOW64\sainbox.exe
Size 1.3MB
SHA256 eb990076712782d8be8bfd52d94585f6e2e6d86d53c2ecff28036f48b629b468
MD5 34ad367bddc3ccef69c375f87d7ab200
SHA1 18a11a0b4c809ad309b05cf0c66b527ae46f4baa
SHA512 6dfc7c72b2b4c2e4f35acede750c19ab761be86a7763edfd4d41a5929e5ef1ad411ff42647befd57ef43582367ebb3b162cee6cdd3d4b5218db351c8e5357a2a
SSDEEP 24576:dOyHutimZ9VSly2hVvHW6qMnSbTBBhBMN1:QHPkVOBTK
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/3112-0-0x0000000010000000-0x000000001019F000-memory.dmp

Download

memory/4496-18-0x0000000010000000-0x000000001019F000-memory.dmp

Download

memory/5072-11-0x0000000010000000-0x000000001019F000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads