gh0strat | b4199d2726fd1cc6601a253583385d1878de92846428055c01e61e97b5c0bc3a

General

Target

b4199d2726fd1cc6601a253583385d1878de92846428055c01e61e97b5c0bc3a.exe
Size

1.3MB
MD5

89e3c561ad2e4b8fc0b01e22a1767e6c
SHA1

359097c792c9456aeaa4d69f378063817a7ed9e4
SHA256

b4199d2726fd1cc6601a253583385d1878de92846428055c01e61e97b5c0bc3a
SHA512

45247bc236bd45f887dfa8421f83797b4e450bcda374df85899f622748dd5edd233bdbd4a7cd3ae4c5a6e0124a503851a53be6589eb6f39e3f3a2262474621a4
SSDEEP

24576:dOyHutimZ9VSly2hVvHW6qMnSbTBBhBMNg:QHPkVOBTK

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/1984-0-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral1/memory/1984-0-0x0000000010000000-0x000000001019F000-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
2152	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
1528	sainbox.exe
848	sainbox.exe

Loads dropped DLL 1 IoCs

pid	Process
1528	sainbox.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\sainbox.exe	b4199d2726fd1cc6601a253583385d1878de92846428055c01e61e97b5c0bc3a.exe
File opened for modification	C:\Windows\SysWOW64\sainbox.exe	b4199d2726fd1cc6601a253583385d1878de92846428055c01e61e97b5c0bc3a.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	b4199d2726fd1cc6601a253583385d1878de92846428055c01e61e97b5c0bc3a.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
2756	PING.EXE
2152	cmd.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2756	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
848	sainbox.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1984	b4199d2726fd1cc6601a253583385d1878de92846428055c01e61e97b5c0bc3a.exe
Token: SeLoadDriverPrivilege	848	sainbox.exe
Token: 33	848	sainbox.exe
Token: SeIncBasePriorityPrivilege	848	sainbox.exe
Token: 33	848	sainbox.exe
Token: SeIncBasePriorityPrivilege	848	sainbox.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 2152	1984	b4199d2726fd1cc6601a253583385d1878de92846428055c01e61e97b5c0bc3a.exe	31
PID 1984 wrote to memory of 2152	1984	b4199d2726fd1cc6601a253583385d1878de92846428055c01e61e97b5c0bc3a.exe	31
PID 1984 wrote to memory of 2152	1984	b4199d2726fd1cc6601a253583385d1878de92846428055c01e61e97b5c0bc3a.exe	31
PID 1984 wrote to memory of 2152	1984	b4199d2726fd1cc6601a253583385d1878de92846428055c01e61e97b5c0bc3a.exe	31
PID 1528 wrote to memory of 848	1528	sainbox.exe	32
PID 1528 wrote to memory of 848	1528	sainbox.exe	32
PID 1528 wrote to memory of 848	1528	sainbox.exe	32
PID 1528 wrote to memory of 848	1528	sainbox.exe	32
PID 2152 wrote to memory of 2756	2152	cmd.exe	34
PID 2152 wrote to memory of 2756	2152	cmd.exe	34
PID 2152 wrote to memory of 2756	2152	cmd.exe	34
PID 2152 wrote to memory of 2756	2152	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\b4199d2726fd1cc6601a253583385d1878de92846428055c01e61e97b5c0bc3a.exe
"C:\Users\Admin\AppData\Local\Temp\b4199d2726fd1cc6601a253583385d1878de92846428055c01e61e97b5c0bc3a.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1984
- 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\B4199D~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2152
- - 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:2756

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:1528
- 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:848

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
4e0fcb3b774c4e5f48f446d6ca042d74

SHA1
7be621012e42b2688e9036cb3fbf49c686d8f219

SHA256
f577fafe6061a088a8a8f34b6fd2392cfd88f33354d02479fcb8fb4e1e4c0554

SHA512
2f99490826e1564a1eb49e5e91fff36fe7364240265501fb40f39a1222eb64715e856f1e095e47fda074c0c162254eadf341e887e2049fcd9cd32e64a499f885

Download Submit
memory/1984-0-0x0000000010000000-0x000000001019F000-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