gh0strat | b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 06:49

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General

Target

b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe
Size

1.2MB
MD5

5dfb2a5a405f4018b0ba8eb4b4d69f6d
SHA1

e87e21e09d1988f6284b00cfc07a917646586f12
SHA256

b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff
SHA512

ab3e13b22e19f87a1e172d12f48964f64e823f80692ed3a5657f6402f5c556f300da7f98db411856a84fb9153451f07e4f8201a25c149c0ef4e3b6c52da65ea8
SSDEEP

24576:HovxCwgMBqHO5ZdYXOp0nQrXctTfK+d+MrTXowFlw57XYBwJtiN:WIwgMEuy+inDfp3/XoCw57XYBwKN

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx vmprotect

Malware Config

Signatures

Detect PurpleFox Rootkit 5 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/2264-24-0x0000000010000000-0x00000000101BA000-memory.dmp	purplefox_rootkit
behavioral1/memory/2264-23-0x0000000010000000-0x00000000101BA000-memory.dmp	purplefox_rootkit
behavioral1/memory/2276-44-0x0000000010000000-0x00000000101BA000-memory.dmp	purplefox_rootkit
behavioral1/memory/2276-48-0x0000000010000000-0x00000000101BA000-memory.dmp	purplefox_rootkit
behavioral1/memory/2276-61-0x0000000010000000-0x00000000101BA000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 6 IoCs

resource	yara_rule
behavioral1/files/0x0008000000015fa6-15.dat	family_gh0strat
behavioral1/memory/2264-24-0x0000000010000000-0x00000000101BA000-memory.dmp	family_gh0strat
behavioral1/memory/2264-23-0x0000000010000000-0x00000000101BA000-memory.dmp	family_gh0strat
behavioral1/memory/2276-44-0x0000000010000000-0x00000000101BA000-memory.dmp	family_gh0strat
behavioral1/memory/2276-48-0x0000000010000000-0x00000000101BA000-memory.dmp	family_gh0strat
behavioral1/memory/2276-61-0x0000000010000000-0x00000000101BA000-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	Ghiya.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"	Ghiya.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\win.lnk	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe

Executes dropped EXE 5 IoCs

pid	Process
2052	AK47.exe
852	AK47.exe
2264	AK74.exe
2784	Ghiya.exe
2276	Ghiya.exe

Loads dropped DLL 7 IoCs

pid	Process
604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe
604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe
2052	AK47.exe
604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe
2784	Ghiya.exe
604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe
604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe

VMProtect packed file 10 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

resource	yara_rule
behavioral1/memory/604-1-0x0000000000400000-0x0000000000760000-memory.dmp	vmprotect
behavioral1/memory/604-0-0x0000000000400000-0x0000000000760000-memory.dmp	vmprotect
behavioral1/files/0x00070000000162e4-55.dat	vmprotect
behavioral1/memory/604-63-0x0000000000400000-0x0000000000760000-memory.dmp	vmprotect
behavioral1/memory/604-69-0x0000000000400000-0x0000000000760000-memory.dmp	vmprotect
behavioral1/memory/604-72-0x0000000000400000-0x0000000000760000-memory.dmp	vmprotect
behavioral1/memory/604-76-0x0000000000400000-0x0000000000760000-memory.dmp	vmprotect
behavioral1/memory/604-79-0x0000000000400000-0x0000000000760000-memory.dmp	vmprotect
behavioral1/memory/604-82-0x0000000000400000-0x0000000000760000-memory.dmp	vmprotect
behavioral1/memory/604-85-0x0000000000400000-0x0000000000760000-memory.dmp	vmprotect

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\360safo = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\svchcst.exe"	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\259449864.txt	AK47.exe
File created	C:\Windows\SysWOW64\259449864.txt	AK47.exe
File created	C:\Windows\SysWOW64\Ghiya.exe	AK74.exe
File opened for modification	C:\Windows\SysWOW64\Ghiya.exe	AK74.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2264-24-0x0000000010000000-0x00000000101BA000-memory.dmp	upx
behavioral1/memory/2264-23-0x0000000010000000-0x00000000101BA000-memory.dmp	upx
behavioral1/memory/2264-21-0x0000000010000000-0x00000000101BA000-memory.dmp	upx
behavioral1/memory/2276-44-0x0000000010000000-0x00000000101BA000-memory.dmp	upx
behavioral1/memory/2276-48-0x0000000010000000-0x00000000101BA000-memory.dmp	upx
behavioral1/memory/2276-61-0x0000000010000000-0x00000000101BA000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 8 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	AK74.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Ghiya.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AK47.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AK47.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
2716	cmd.exe
2768	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2768	PING.EXE

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe
604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe
604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe
604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe
604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe
604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe
604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe
604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2276	Ghiya.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2264	AK74.exe
Token: SeLoadDriverPrivilege	2276	Ghiya.exe
Token: 33	2276	Ghiya.exe
Token: SeIncBasePriorityPrivilege	2276	Ghiya.exe
Token: 33	2276	Ghiya.exe
Token: SeIncBasePriorityPrivilege	2276	Ghiya.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe
604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 604 wrote to memory of 2052	604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe	31
PID 604 wrote to memory of 2052	604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe	31
PID 604 wrote to memory of 2052	604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe	31
PID 604 wrote to memory of 2052	604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe	31
PID 604 wrote to memory of 852	604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe	32
PID 604 wrote to memory of 852	604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe	32
PID 604 wrote to memory of 852	604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe	32
PID 604 wrote to memory of 852	604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe	32
PID 604 wrote to memory of 2264	604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe	33
PID 604 wrote to memory of 2264	604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe	33
PID 604 wrote to memory of 2264	604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe	33
PID 604 wrote to memory of 2264	604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe	33
PID 604 wrote to memory of 2264	604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe	33
PID 604 wrote to memory of 2264	604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe	33
PID 604 wrote to memory of 2264	604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe	33
PID 2264 wrote to memory of 2716	2264	AK74.exe	35
PID 2264 wrote to memory of 2716	2264	AK74.exe	35
PID 2264 wrote to memory of 2716	2264	AK74.exe	35
PID 2264 wrote to memory of 2716	2264	AK74.exe	35
PID 2784 wrote to memory of 2276	2784	Ghiya.exe	37
PID 2784 wrote to memory of 2276	2784	Ghiya.exe	37
PID 2784 wrote to memory of 2276	2784	Ghiya.exe	37
PID 2784 wrote to memory of 2276	2784	Ghiya.exe	37
PID 2784 wrote to memory of 2276	2784	Ghiya.exe	37
PID 2784 wrote to memory of 2276	2784	Ghiya.exe	37
PID 2784 wrote to memory of 2276	2784	Ghiya.exe	37
PID 2716 wrote to memory of 2768	2716	cmd.exe	38
PID 2716 wrote to memory of 2768	2716	cmd.exe	38
PID 2716 wrote to memory of 2768	2716	cmd.exe	38
PID 2716 wrote to memory of 2768	2716	cmd.exe	38
PID 604 wrote to memory of 2552	604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe	39
PID 604 wrote to memory of 2552	604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe	39
PID 604 wrote to memory of 2552	604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe	39
PID 604 wrote to memory of 2552	604	b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe	39

C:\Users\Admin\AppData\Local\Temp\b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe
"C:\Users\Admin\AppData\Local\Temp\b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:604
- C:\Users\Admin\AppData\Local\Temp\AK47.exe
  "C:\Users\Admin\AppData\Local\Temp\AK47.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:2052
- C:\Users\Admin\AppData\Local\Temp\AK47.exe
  C:\Users\Admin\AppData\Local\Temp\\AK47.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:852
- C:\Users\Admin\AppData\Local\Temp\AK74.exe
  C:\Users\Admin\AppData\Local\Temp\\AK74.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2264
- - 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\AK74.exe > nul
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:2716
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:2768
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2552

C:\Windows\SysWOW64\Ghiya.exe
C:\Windows\SysWOW64\Ghiya.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2784
- C:\Windows\SysWOW64\Ghiya.exe
  C:\Windows\SysWOW64\Ghiya.exe -acsi
  2⤵
  - Drops file in Drivers directory
  - Sets service image path in registry
  - Executes dropped EXE
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:2276

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

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Config.ini

Filesize
92B

MD5
29ce53e2a4a446614ccc8d64d346bde4

SHA1
39a7aa5cc1124842aa0c25abb16ea94452125cbe

SHA256
56225be6838bc6e93ea215891eacf28844ae27a9f8b2b29bf19d3a8c2b1f58df

SHA512
b2c5a2708c427171a5715801f8ea733ffe88d73aaaaf59c5c752ea32cbe7aae8526cc26eabe84ad5043174c0c69b1d6b15a9fb125c15accfac3462d5d08a0faa

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs

Filesize
753B

MD5
29549914b85f02929d75782bf14b30f0

SHA1
102515730c4757bcb90b42741726fe204dc877df

SHA256
b2c6ca39efe27be4e49f954bef48e037b294fa7fe55b618a8538c9ef2b915104

SHA512
661e71fdafa66c5e7d5488a3fa0c6d5a593ad3a90a96d2d31eb15cc4a42dc303142b30a9b54f26ab8ae902ac53a0da3ab1a4c7296c8bc28ce79c3f55c6fa8025

Download Submit
\Users\Admin\AppData\Local\Temp\AK47.exe

Filesize
91KB

MD5
423eb994ed553294f8a6813619b8da87

SHA1
eca6a16ccd13adcfc27bc1041ddef97ec8081255

SHA256
050b4f2d5ae8eaecd414318dc8e222a56f169626da6ca8feb7edd78e8b1f0218

SHA512
fab0a9af8031c242c486de373df7277c8b0e39f7a0c9c2ac2e385dbd3ea67be16e91b128287634f76131e5264149ab1b452cd21df4c4895e8c4efc8d8cf99095

Download Submit
\Users\Admin\AppData\Local\Temp\AK74.exe

Filesize
400KB

MD5
b0998aa7d5071d33daa5b60b9c3c9735

SHA1
9365a1ff0c6de244d6f36c8d84072cc916665d3c

SHA256
3080b6bb456564899b0d99d4131bd6a0b284d31f7d80ef773e4872d94048d49a

SHA512
308c13cda9fea39b980ae686f44afd9090e9cb8970fffc4436320e0d09a31aee5e656914e0121fe888098a14c52749716fa04980396fd6ac70a88c11cbb6b850

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\svchcst.exe

Filesize
1.2MB

MD5
2347caa1047fed160d57af1880647927

SHA1
5d873c1e42f02c7f278a7f7e55f47bcae9513908

SHA256
816cb5446faa6f566c2af03ce899747f46b854d60228d5ed67b1648137396022

SHA512
833dfddabc4048f3f42b703af1059079940f8725899fb35348419f62b75765abcefb44efd6294e3ec2460f6ddb1e3dd95c7b00b88a453f94c4d4f395006993df

Download Submit
\Windows\SysWOW64\259449864.txt

Filesize
49KB

MD5
5e121fde2b06fa9e6000868da2125567

SHA1
8a52444e5857092057ba0198bc737bdc8e1510c0

SHA256
a83e7ac6d30dad6fdf33ed4dc050ef1afedc9555df708c1ffe918db60064ec47

SHA512
7a6a07884fc078a9eda59d13fe7980c8b2aee091a77f5b17d7eaa559fc9f0bc0dddc637c683be390be0a9f07b74591b99c70ba32bd5411422f771a017b729bff

Download Submit
memory/604-69-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/604-63-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/604-85-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/604-82-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/604-79-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/604-59-0x0000000002120000-0x0000000002130000-memory.dmp

Filesize
64KB

Download
memory/604-58-0x0000000002120000-0x0000000002130000-memory.dmp

Filesize
64KB

Download
memory/604-0-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/604-76-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/604-72-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/604-65-0x0000000002120000-0x0000000002130000-memory.dmp

Filesize
64KB

Download
memory/604-66-0x0000000002120000-0x0000000002130000-memory.dmp

Filesize
64KB

Download
memory/604-1-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2264-21-0x0000000010000000-0x00000000101BA000-memory.dmp

Filesize
1.7MB

Download
memory/2264-24-0x0000000010000000-0x00000000101BA000-memory.dmp

Filesize
1.7MB

Download
memory/2264-23-0x0000000010000000-0x00000000101BA000-memory.dmp

Filesize
1.7MB

Download
memory/2276-61-0x0000000010000000-0x00000000101BA000-memory.dmp

Filesize
1.7MB

Download
memory/2276-48-0x0000000010000000-0x00000000101BA000-memory.dmp

Filesize
1.7MB

Download
memory/2276-44-0x0000000010000000-0x00000000101BA000-memory.dmp

Filesize
1.7MB

Download