gh0strat | ae37d75d561a13cf91b631dd751fa360b46c174324980a7a1e990cd7c05ad168

General

Target

ae37d75d561a13cf91b631dd751fa360b46c174324980a7a1e990cd7c05ad168.exe
Size

539KB
MD5

a05dc245484767561e3bea0f548a2083
SHA1

423b4f0c1f5f735cbd2c52d543209325462d1ebc
SHA256

ae37d75d561a13cf91b631dd751fa360b46c174324980a7a1e990cd7c05ad168
SHA512

79cbb61c98a5f9be34632bebe9ca6e12b4ec87360bdb11f7fd8ab8d25a2792cefeca86bd1e572bda5358c93c11a99a4a478143c57040b3cebdfb660be44f3557
SSDEEP

12288:/hymnwJFPNdgBAEHApqePJN1AmLM7uVq9sSB:/Umwrl2Ao7sJNlM7ymsSB

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 7 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/2648-1-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/216-11-0x0000000000400000-0x0000000000547000-memory.dmp	purplefox_rootkit
behavioral2/memory/216-12-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/2648-19-0x0000000000400000-0x0000000000547000-memory.dmp	purplefox_rootkit
behavioral2/memory/2756-21-0x0000000000400000-0x0000000000547000-memory.dmp	purplefox_rootkit
behavioral2/memory/216-29-0x0000000000400000-0x0000000000547000-memory.dmp	purplefox_rootkit
behavioral2/memory/2756-39-0x0000000000400000-0x0000000000547000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 7 IoCs

resource	yara_rule
behavioral2/memory/2648-1-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/216-11-0x0000000000400000-0x0000000000547000-memory.dmp	family_gh0strat
behavioral2/memory/216-12-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/2648-19-0x0000000000400000-0x0000000000547000-memory.dmp	family_gh0strat
behavioral2/memory/2756-21-0x0000000000400000-0x0000000000547000-memory.dmp	family_gh0strat
behavioral2/memory/216-29-0x0000000000400000-0x0000000000547000-memory.dmp	family_gh0strat
behavioral2/memory/2756-39-0x0000000000400000-0x0000000000547000-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	Vnfvn.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"	Vnfvn.exe

Executes dropped EXE 2 IoCs

pid	Process
216	Vnfvn.exe
2756	Vnfvn.exe

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2648-0-0x0000000000400000-0x0000000000547000-memory.dmp	upx
behavioral2/files/0x00080000000234b7-9.dat	upx
behavioral2/memory/216-11-0x0000000000400000-0x0000000000547000-memory.dmp	upx
behavioral2/memory/2648-19-0x0000000000400000-0x0000000000547000-memory.dmp	upx
behavioral2/memory/2756-21-0x0000000000400000-0x0000000000547000-memory.dmp	upx
behavioral2/memory/216-29-0x0000000000400000-0x0000000000547000-memory.dmp	upx
behavioral2/memory/2756-39-0x0000000000400000-0x0000000000547000-memory.dmp	upx

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Vnfvn.exe	ae37d75d561a13cf91b631dd751fa360b46c174324980a7a1e990cd7c05ad168.exe
File opened for modification	C:\Windows\SysWOW64\Vnfvn.exe	ae37d75d561a13cf91b631dd751fa360b46c174324980a7a1e990cd7c05ad168.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	Vnfvn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Vnfvn.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	ae37d75d561a13cf91b631dd751fa360b46c174324980a7a1e990cd7c05ad168.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
4876	PING.EXE
1896	cmd.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4876	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2756	Vnfvn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2648	ae37d75d561a13cf91b631dd751fa360b46c174324980a7a1e990cd7c05ad168.exe
Token: SeLoadDriverPrivilege	2756	Vnfvn.exe
Token: 33	2756	Vnfvn.exe
Token: SeIncBasePriorityPrivilege	2756	Vnfvn.exe
Token: 33	2756	Vnfvn.exe
Token: SeIncBasePriorityPrivilege	2756	Vnfvn.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2648 wrote to memory of 1896	2648	ae37d75d561a13cf91b631dd751fa360b46c174324980a7a1e990cd7c05ad168.exe	86
PID 2648 wrote to memory of 1896	2648	ae37d75d561a13cf91b631dd751fa360b46c174324980a7a1e990cd7c05ad168.exe	86
PID 2648 wrote to memory of 1896	2648	ae37d75d561a13cf91b631dd751fa360b46c174324980a7a1e990cd7c05ad168.exe	86
PID 216 wrote to memory of 2756	216	Vnfvn.exe	87
PID 216 wrote to memory of 2756	216	Vnfvn.exe	87
PID 216 wrote to memory of 2756	216	Vnfvn.exe	87
PID 1896 wrote to memory of 4876	1896	cmd.exe	89
PID 1896 wrote to memory of 4876	1896	cmd.exe	89
PID 1896 wrote to memory of 4876	1896	cmd.exe	89

C:\Users\Admin\AppData\Local\Temp\ae37d75d561a13cf91b631dd751fa360b46c174324980a7a1e990cd7c05ad168.exe
"C:\Users\Admin\AppData\Local\Temp\ae37d75d561a13cf91b631dd751fa360b46c174324980a7a1e990cd7c05ad168.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2648
- 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\AE37D7~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1896
- - 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:4876

C:\Windows\SysWOW64\Vnfvn.exe
C:\Windows\SysWOW64\Vnfvn.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:216
- C:\Windows\SysWOW64\Vnfvn.exe
  C:\Windows\SysWOW64\Vnfvn.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:2756

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\Vnfvn.exe

Filesize
539KB

MD5
a05dc245484767561e3bea0f548a2083

SHA1
423b4f0c1f5f735cbd2c52d543209325462d1ebc

SHA256
ae37d75d561a13cf91b631dd751fa360b46c174324980a7a1e990cd7c05ad168

SHA512
79cbb61c98a5f9be34632bebe9ca6e12b4ec87360bdb11f7fd8ab8d25a2792cefeca86bd1e572bda5358c93c11a99a4a478143c57040b3cebdfb660be44f3557

Download Submit
memory/216-11-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/216-12-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/216-29-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/2648-0-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/2648-1-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/2648-19-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/2756-21-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/2756-39-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads