gh0strat | 110e501a058bdfd91d6095431e074b85cd7dba5628f2a64e69d098e5b8c02d12

Analysis

max time kernel
139s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
16-10-2024 07:35

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General

Target

110e501a058bdfd91d6095431e074b85cd7dba5628f2a64e69d098e5b8c02d12.exe
Size

1.4MB
MD5

390d5fe0a9cd619689520a70f32f2c75
SHA1

3140a9eda9d27d241ac35041d5087b1ee903a7af
SHA256

110e501a058bdfd91d6095431e074b85cd7dba5628f2a64e69d098e5b8c02d12
SHA512

6357be8b837e459e5a81412c5f6ac5ef83b6672fd98bf8b2787c3f77bec2e46a0a35ff0b525fc1b4571c49981fa9a605bb5fae3255eaf377f0d15b3fdb1b3e21
SSDEEP

24576:F39WkOyHutimZ9VSly2hVvHW6qMnSbTBBhBMN:59qHPkVOBTK

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/4220-1-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/3508-10-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/1756-17-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/4220-1-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/3508-10-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/1756-17-0x0000000010000000-0x000000001019F000-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
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
3508	Vnfvn.exe
1756	Vnfvn.exe

Enumerates connected drives 3 TTPs 22 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\T:	Vnfvn.exe
File opened (read-only)	\??\B:	Vnfvn.exe
File opened (read-only)	\??\E:	Vnfvn.exe
File opened (read-only)	\??\I:	Vnfvn.exe
File opened (read-only)	\??\N:	Vnfvn.exe
File opened (read-only)	\??\P:	Vnfvn.exe
File opened (read-only)	\??\Q:	Vnfvn.exe
File opened (read-only)	\??\G:	Vnfvn.exe
File opened (read-only)	\??\L:	Vnfvn.exe
File opened (read-only)	\??\V:	Vnfvn.exe
File opened (read-only)	\??\W:	Vnfvn.exe
File opened (read-only)	\??\X:	Vnfvn.exe
File opened (read-only)	\??\Y:	Vnfvn.exe
File opened (read-only)	\??\Z:	Vnfvn.exe
File opened (read-only)	\??\H:	Vnfvn.exe
File opened (read-only)	\??\J:	Vnfvn.exe
File opened (read-only)	\??\K:	Vnfvn.exe
File opened (read-only)	\??\M:	Vnfvn.exe
File opened (read-only)	\??\R:	Vnfvn.exe
File opened (read-only)	\??\U:	Vnfvn.exe
File opened (read-only)	\??\O:	Vnfvn.exe
File opened (read-only)	\??\S:	Vnfvn.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Vnfvn.exe	110e501a058bdfd91d6095431e074b85cd7dba5628f2a64e69d098e5b8c02d12.exe
File opened for modification	C:\Windows\SysWOW64\Vnfvn.exe	110e501a058bdfd91d6095431e074b85cd7dba5628f2a64e69d098e5b8c02d12.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	110e501a058bdfd91d6095431e074b85cd7dba5628f2a64e69d098e5b8c02d12.exe
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

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
1116	cmd.exe
4320	PING.EXE

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Vnfvn.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	Vnfvn.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum	Vnfvn.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	Vnfvn.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	Vnfvn.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie	Vnfvn.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum\Version = "7"	Vnfvn.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4320	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe
1756	Vnfvn.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
1756	Vnfvn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4220	110e501a058bdfd91d6095431e074b85cd7dba5628f2a64e69d098e5b8c02d12.exe
Token: SeLoadDriverPrivilege	1756	Vnfvn.exe
Token: 33	1756	Vnfvn.exe
Token: SeIncBasePriorityPrivilege	1756	Vnfvn.exe
Token: 33	1756	Vnfvn.exe
Token: SeIncBasePriorityPrivilege	1756	Vnfvn.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4220 wrote to memory of 1116	4220	110e501a058bdfd91d6095431e074b85cd7dba5628f2a64e69d098e5b8c02d12.exe	85
PID 4220 wrote to memory of 1116	4220	110e501a058bdfd91d6095431e074b85cd7dba5628f2a64e69d098e5b8c02d12.exe	85
PID 4220 wrote to memory of 1116	4220	110e501a058bdfd91d6095431e074b85cd7dba5628f2a64e69d098e5b8c02d12.exe	85
PID 3508 wrote to memory of 1756	3508	Vnfvn.exe	86
PID 3508 wrote to memory of 1756	3508	Vnfvn.exe	86
PID 3508 wrote to memory of 1756	3508	Vnfvn.exe	86
PID 1116 wrote to memory of 4320	1116	cmd.exe	89
PID 1116 wrote to memory of 4320	1116	cmd.exe	89
PID 1116 wrote to memory of 4320	1116	cmd.exe	89

C:\Users\Admin\AppData\Local\Temp\110e501a058bdfd91d6095431e074b85cd7dba5628f2a64e69d098e5b8c02d12.exe
"C:\Users\Admin\AppData\Local\Temp\110e501a058bdfd91d6095431e074b85cd7dba5628f2a64e69d098e5b8c02d12.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4220
- 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\110E50~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1116
- - 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:4320

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:3508
- 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
  - Enumerates connected drives
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:1756

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\Vnfvn.exe

Filesize
1.4MB

MD5
390d5fe0a9cd619689520a70f32f2c75

SHA1
3140a9eda9d27d241ac35041d5087b1ee903a7af

SHA256
110e501a058bdfd91d6095431e074b85cd7dba5628f2a64e69d098e5b8c02d12

SHA512
6357be8b837e459e5a81412c5f6ac5ef83b6672fd98bf8b2787c3f77bec2e46a0a35ff0b525fc1b4571c49981fa9a605bb5fae3255eaf377f0d15b3fdb1b3e21

Download Submit
memory/1756-17-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/3508-10-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/4220-1-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download