gh0strat | e6d76d9ecbd1f70ccdc88bcb2d6c9da9da83bab1ae3792b24a76487c8e3e5d87

Analysis

max time kernel
143s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
10/10/2023, 18:10

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
e6d76d9ecbd1f70ccdc88bcb2d6c9da9da83bab1ae3792b24a76487c8e3e5d87.exe
Size 1.3MB
Sample231010-wsb3gshd82
SHA256 e6d76d9ecbd1f70ccdc88bcb2d6c9da9da83bab1ae3792b24a76487c8e3e5d87
MD5 7bbeb9f53962b1b84e4161d701a17187
SHA1 3c42883e8ae44302f95910c3b35b8b788129f0be
SHA512 bf50653fab6326b27f77893b7abce7a0c695eecdbd5938d45d0a234fb9469613c986780aded97ea3c4590cef15d6ee37fe2d675eb3377441dded7983531f9ef6
SSDEEP 24576:dOyHutimZ9VSly2hVvHW6qMnSbTBBhBMNk:QHPkVOBTK
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan

Malware Config

Signatures

Detect PurpleFox Rootkit 2 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/2696-0-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/2852-10-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral2/memory/2696-0-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/2852-10-0x0000000010000000-0x000000001019F000-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	Vwxpq.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"	Vwxpq.exe

Executes dropped EXE 2 IoCs

pid	Process
2852	Vwxpq.exe
4336	Vwxpq.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)	\??\P:	Vwxpq.exe
File opened (read-only)	\??\W:	Vwxpq.exe
File opened (read-only)	\??\Z:	Vwxpq.exe
File opened (read-only)	\??\B:	Vwxpq.exe
File opened (read-only)	\??\O:	Vwxpq.exe
File opened (read-only)	\??\V:	Vwxpq.exe
File opened (read-only)	\??\Y:	Vwxpq.exe
File opened (read-only)	\??\K:	Vwxpq.exe
File opened (read-only)	\??\T:	Vwxpq.exe
File opened (read-only)	\??\I:	Vwxpq.exe
File opened (read-only)	\??\J:	Vwxpq.exe
File opened (read-only)	\??\Q:	Vwxpq.exe
File opened (read-only)	\??\R:	Vwxpq.exe
File opened (read-only)	\??\S:	Vwxpq.exe
File opened (read-only)	\??\U:	Vwxpq.exe
File opened (read-only)	\??\E:	Vwxpq.exe
File opened (read-only)	\??\H:	Vwxpq.exe
File opened (read-only)	\??\M:	Vwxpq.exe
File opened (read-only)	\??\N:	Vwxpq.exe
File opened (read-only)	\??\X:	Vwxpq.exe
File opened (read-only)	\??\G:	Vwxpq.exe
File opened (read-only)	\??\L:	Vwxpq.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Vwxpq.exe	e6d76d9ecbd1f70ccdc88bcb2d6c9da9da83bab1ae3792b24a76487c8e3e5d87.exe
File opened for modification	C:\Windows\SysWOW64\Vwxpq.exe	e6d76d9ecbd1f70ccdc88bcb2d6c9da9da83bab1ae3792b24a76487c8e3e5d87.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	Vwxpq.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	Vwxpq.exe

Modifies data under HKEY_USERS 8 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum	Vwxpq.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	Vwxpq.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	Vwxpq.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie	Vwxpq.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum\Version = "7"	Vwxpq.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	Vwxpq.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	Vwxpq.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	Vwxpq.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4040	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe
4336	Vwxpq.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
4336	Vwxpq.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2696	e6d76d9ecbd1f70ccdc88bcb2d6c9da9da83bab1ae3792b24a76487c8e3e5d87.exe
Token: SeLoadDriverPrivilege	4336	Vwxpq.exe
Token: 33	4336	Vwxpq.exe
Token: SeIncBasePriorityPrivilege	4336	Vwxpq.exe
Token: 33	4336	Vwxpq.exe
Token: SeIncBasePriorityPrivilege	4336	Vwxpq.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2696 wrote to memory of 3864	2696	e6d76d9ecbd1f70ccdc88bcb2d6c9da9da83bab1ae3792b24a76487c8e3e5d87.exe	87
PID 2696 wrote to memory of 3864	2696	e6d76d9ecbd1f70ccdc88bcb2d6c9da9da83bab1ae3792b24a76487c8e3e5d87.exe	87
PID 2696 wrote to memory of 3864	2696	e6d76d9ecbd1f70ccdc88bcb2d6c9da9da83bab1ae3792b24a76487c8e3e5d87.exe	87
PID 2852 wrote to memory of 4336	2852	Vwxpq.exe	88
PID 2852 wrote to memory of 4336	2852	Vwxpq.exe	88
PID 2852 wrote to memory of 4336	2852	Vwxpq.exe	88
PID 3864 wrote to memory of 4040	3864	cmd.exe	90
PID 3864 wrote to memory of 4040	3864	cmd.exe	90
PID 3864 wrote to memory of 4040	3864	cmd.exe	90

C:\Users\Admin\AppData\Local\Temp\e6d76d9ecbd1f70ccdc88bcb2d6c9da9da83bab1ae3792b24a76487c8e3e5d87.exe
"C:\Users\Admin\AppData\Local\Temp\e6d76d9ecbd1f70ccdc88bcb2d6c9da9da83bab1ae3792b24a76487c8e3e5d87.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2696
- 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\E6D76D~1.EXE > nul
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3864
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 2 127.0.0.1
    3⤵
    - Runs ping.exe
    PID:4040

C:\Windows\SysWOW64\Vwxpq.exe
C:\Windows\SysWOW64\Vwxpq.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2852
- C:\Windows\SysWOW64\Vwxpq.exe
  C:\Windows\SysWOW64\Vwxpq.exe -acsi
  2⤵
  - Drops file in Drivers directory
  - Sets service image path in registry
  - Executes dropped EXE
  - Enumerates connected drives
  - Checks processor information in registry
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:4336

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

Vwxpq.exe

Path C:\Windows\SysWOW64\Vwxpq.exe
Size 1.3MB
SHA256 e6d76d9ecbd1f70ccdc88bcb2d6c9da9da83bab1ae3792b24a76487c8e3e5d87
MD5 7bbeb9f53962b1b84e4161d701a17187
SHA1 3c42883e8ae44302f95910c3b35b8b788129f0be
SHA512 bf50653fab6326b27f77893b7abce7a0c695eecdbd5938d45d0a234fb9469613c986780aded97ea3c4590cef15d6ee37fe2d675eb3377441dded7983531f9ef6
SSDEEP 24576:dOyHutimZ9VSly2hVvHW6qMnSbTBBhBMNk:QHPkVOBTK
MD5 SHA1 SHA512 SSDEEP

Submit Download

Vwxpq.exe

Path C:\Windows\SysWOW64\Vwxpq.exe
Size 1.3MB
SHA256 e6d76d9ecbd1f70ccdc88bcb2d6c9da9da83bab1ae3792b24a76487c8e3e5d87
MD5 7bbeb9f53962b1b84e4161d701a17187
SHA1 3c42883e8ae44302f95910c3b35b8b788129f0be
SHA512 bf50653fab6326b27f77893b7abce7a0c695eecdbd5938d45d0a234fb9469613c986780aded97ea3c4590cef15d6ee37fe2d675eb3377441dded7983531f9ef6
SSDEEP 24576:dOyHutimZ9VSly2hVvHW6qMnSbTBBhBMNk:QHPkVOBTK
MD5 SHA1 SHA512 SSDEEP

Submit Download

Vwxpq.exe

Path C:\Windows\SysWOW64\Vwxpq.exe
Size 1.3MB
SHA256 e6d76d9ecbd1f70ccdc88bcb2d6c9da9da83bab1ae3792b24a76487c8e3e5d87
MD5 7bbeb9f53962b1b84e4161d701a17187
SHA1 3c42883e8ae44302f95910c3b35b8b788129f0be
SHA512 bf50653fab6326b27f77893b7abce7a0c695eecdbd5938d45d0a234fb9469613c986780aded97ea3c4590cef15d6ee37fe2d675eb3377441dded7983531f9ef6
SSDEEP 24576:dOyHutimZ9VSly2hVvHW6qMnSbTBBhBMNk:QHPkVOBTK
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2696-0-0x0000000010000000-0x000000001019F000-memory.dmp

Download

memory/2852-10-0x0000000010000000-0x000000001019F000-memory.dmp

Download