gh0strat | 0213b4bd5f596b45e173ee1248161f7f86bd938798b9c38447e247f05f85b112

General

Target

0213b4bd5f596b45e173ee1248161f7f86bd938798b9c38447e247f05f85b112.exe
Size

3.3MB
MD5

b7242ca1bb2bb34aee1894444d5e1c69
SHA1

70d80f8e1112beead75f1398b25cd8156810cebe
SHA256

0213b4bd5f596b45e173ee1248161f7f86bd938798b9c38447e247f05f85b112
SHA512

4bc65a305140b392481004bc61d16837ab45221d3697aedac20df01803f1a7a025a91ddc8af55787bed0a47d739e85f9dbc5cd38d97da72fb590ec74fd8e7561
SSDEEP

24576:dOyHutimZ9VSly2hVvHW6qMnSbTBBhBMNKI:QHPkVOBTKh

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan

Malware Config

Signatures

Detect PurpleFox Rootkit 1 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/2244-0-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral1/memory/2244-0-0x0000000010000000-0x000000001019F000-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
2228	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
2804	sainbox.exe
2392	sainbox.exe

Loads dropped DLL 1 IoCs

pid	Process
2804	sainbox.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\sainbox.exe	0213b4bd5f596b45e173ee1248161f7f86bd938798b9c38447e247f05f85b112.exe
File opened for modification	C:\Windows\SysWOW64\sainbox.exe	0213b4bd5f596b45e173ee1248161f7f86bd938798b9c38447e247f05f85b112.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	0213b4bd5f596b45e173ee1248161f7f86bd938798b9c38447e247f05f85b112.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sainbox.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
2772	PING.EXE
2228	cmd.exe

Modifies data under HKEY_USERS 4 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	sainbox.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	sainbox.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	sainbox.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	sainbox.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2772	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2392	sainbox.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2244	0213b4bd5f596b45e173ee1248161f7f86bd938798b9c38447e247f05f85b112.exe
Token: SeLoadDriverPrivilege	2392	sainbox.exe
Token: 33	2392	sainbox.exe
Token: SeIncBasePriorityPrivilege	2392	sainbox.exe
Token: 33	2392	sainbox.exe
Token: SeIncBasePriorityPrivilege	2392	sainbox.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 2228	2244	0213b4bd5f596b45e173ee1248161f7f86bd938798b9c38447e247f05f85b112.exe	31
PID 2244 wrote to memory of 2228	2244	0213b4bd5f596b45e173ee1248161f7f86bd938798b9c38447e247f05f85b112.exe	31
PID 2244 wrote to memory of 2228	2244	0213b4bd5f596b45e173ee1248161f7f86bd938798b9c38447e247f05f85b112.exe	31
PID 2244 wrote to memory of 2228	2244	0213b4bd5f596b45e173ee1248161f7f86bd938798b9c38447e247f05f85b112.exe	31
PID 2228 wrote to memory of 2772	2228	cmd.exe	34
PID 2228 wrote to memory of 2772	2228	cmd.exe	34
PID 2228 wrote to memory of 2772	2228	cmd.exe	34
PID 2228 wrote to memory of 2772	2228	cmd.exe	34
PID 2804 wrote to memory of 2392	2804	sainbox.exe	33
PID 2804 wrote to memory of 2392	2804	sainbox.exe	33
PID 2804 wrote to memory of 2392	2804	sainbox.exe	33
PID 2804 wrote to memory of 2392	2804	sainbox.exe	33

C:\Users\Admin\AppData\Local\Temp\0213b4bd5f596b45e173ee1248161f7f86bd938798b9c38447e247f05f85b112.exe
"C:\Users\Admin\AppData\Local\Temp\0213b4bd5f596b45e173ee1248161f7f86bd938798b9c38447e247f05f85b112.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2244
- 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\0213B4~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2228
- - 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:2772

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:2804
- 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
  - Modifies data under HKEY_USERS
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:2392

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\sainbox.exe

Filesize
3.3MB

MD5
b7242ca1bb2bb34aee1894444d5e1c69

SHA1
70d80f8e1112beead75f1398b25cd8156810cebe

SHA256
0213b4bd5f596b45e173ee1248161f7f86bd938798b9c38447e247f05f85b112

SHA512
4bc65a305140b392481004bc61d16837ab45221d3697aedac20df01803f1a7a025a91ddc8af55787bed0a47d739e85f9dbc5cd38d97da72fb590ec74fd8e7561

Download Submit
memory/2244-0-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads