gh0strat | 21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619

Analysis

max time kernel
150s
max time network
122s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
23-11-2024 07:33

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General

Target

21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe
Size

3.1MB
MD5

2ca3485b236626919d44a752bc2eed3e
SHA1

c53c49940ceb50047b166a397f7cf6d5f5d9c322
SHA256

21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619
SHA512

374a3950c011c0a024c15d8036c5f8049aa3c87d9852f1fc3f3534385790e8e7e59cb9332ce3430d66d8e3c095b466aa9759fb2a1ad54750442a45bf7a9e2c59
SSDEEP

49152:SCwsbCANnKXferL7Vwe/Gg0P+Wh1tbmUq9hDU:1ws2ANnKXOaeOgmhrbmThDU

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 4 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/1984-21-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1984-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2936-45-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2936-55-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 5 IoCs

resource	yara_rule
behavioral1/files/0x0008000000016875-6.dat	family_gh0strat
behavioral1/memory/1984-21-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1984-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2936-45-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2936-55-0x0000000010000000-0x00000000101B6000-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	TXPlatfor.exe

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Remote Data\Parameters\ServiceDll = "C:\\Windows\\system32\\259439490.txt"	R.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"	TXPlatfor.exe

Executes dropped EXE 6 IoCs

pid	Process
1240	R.exe
1984	N.exe
2496	TXPlatfor.exe
2936	TXPlatfor.exe
2840	HD_21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe
1848	Remote Data.exe

Loads dropped DLL 8 IoCs

pid	Process
2408	21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe
1240	R.exe
1908	svchost.exe
2408	21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe
2496	TXPlatfor.exe
2408	21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe
1908	svchost.exe
1848	Remote Data.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Remote Data.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\Remote Data.exe	svchost.exe
File created	C:\Windows\SysWOW64\TXPlatfor.exe	N.exe
File opened for modification	C:\Windows\SysWOW64\TXPlatfor.exe	N.exe
File created	C:\Windows\SysWOW64\259439490.txt	R.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	R.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1984-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1984-21-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1984-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/files/0x0008000000016d43-40.dat	upx
behavioral1/memory/2840-44-0x0000000000400000-0x00000000005B8000-memory.dmp	upx
behavioral1/memory/2936-45-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2936-55-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2840-72-0x0000000000400000-0x00000000005B8000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 9 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	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	R.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HD_21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TXPlatfor.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Remote Data.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
2924	PING.EXE
2820	cmd.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2924	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2408	21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2936	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1984	N.exe
Token: SeLoadDriverPrivilege	2936	TXPlatfor.exe
Token: 33	2936	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2936	TXPlatfor.exe
Token: 33	2936	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2936	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2408	21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe
2408	21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 2408 wrote to memory of 1240	2408	21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe	30
PID 2408 wrote to memory of 1240	2408	21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe	30
PID 2408 wrote to memory of 1240	2408	21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe	30
PID 2408 wrote to memory of 1240	2408	21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe	30
PID 2408 wrote to memory of 1984	2408	21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe	33
PID 2408 wrote to memory of 1984	2408	21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe	33
PID 2408 wrote to memory of 1984	2408	21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe	33
PID 2408 wrote to memory of 1984	2408	21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe	33
PID 2408 wrote to memory of 1984	2408	21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe	33
PID 2408 wrote to memory of 1984	2408	21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe	33
PID 2408 wrote to memory of 1984	2408	21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe	33
PID 1984 wrote to memory of 2820	1984	N.exe	35
PID 1984 wrote to memory of 2820	1984	N.exe	35
PID 1984 wrote to memory of 2820	1984	N.exe	35
PID 1984 wrote to memory of 2820	1984	N.exe	35
PID 2496 wrote to memory of 2936	2496	TXPlatfor.exe	36
PID 2496 wrote to memory of 2936	2496	TXPlatfor.exe	36
PID 2496 wrote to memory of 2936	2496	TXPlatfor.exe	36
PID 2496 wrote to memory of 2936	2496	TXPlatfor.exe	36
PID 2496 wrote to memory of 2936	2496	TXPlatfor.exe	36
PID 2496 wrote to memory of 2936	2496	TXPlatfor.exe	36
PID 2496 wrote to memory of 2936	2496	TXPlatfor.exe	36
PID 2408 wrote to memory of 2840	2408	21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe	38
PID 2408 wrote to memory of 2840	2408	21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe	38
PID 2408 wrote to memory of 2840	2408	21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe	38
PID 2408 wrote to memory of 2840	2408	21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe	38
PID 2820 wrote to memory of 2924	2820	cmd.exe	39
PID 2820 wrote to memory of 2924	2820	cmd.exe	39
PID 2820 wrote to memory of 2924	2820	cmd.exe	39
PID 2820 wrote to memory of 2924	2820	cmd.exe	39
PID 1908 wrote to memory of 1848	1908	svchost.exe	42
PID 1908 wrote to memory of 1848	1908	svchost.exe	42
PID 1908 wrote to memory of 1848	1908	svchost.exe	42
PID 1908 wrote to memory of 1848	1908	svchost.exe	42

C:\Users\Admin\AppData\Local\Temp\21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe
"C:\Users\Admin\AppData\Local\Temp\21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2408
- C:\Users\Admin\AppData\Local\Temp\R.exe
  C:\Users\Admin\AppData\Local\Temp\\R.exe
  2⤵
  - Server Software Component: Terminal Services DLL
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:1240
- C:\Users\Admin\AppData\Local\Temp\N.exe
  C:\Users\Admin\AppData\Local\Temp\\N.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: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\N.exe > nul
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:2820
  - - 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:2924
- C:\Users\Admin\AppData\Local\Temp\HD_21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe
  C:\Users\Admin\AppData\Local\Temp\HD_21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2840

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:2396

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1908
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\259439490.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:1848

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2496
- C:\Windows\SysWOW64\TXPlatfor.exe
  C:\Windows\SysWOW64\TXPlatfor.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:2936

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

Server Software Component

T1505

Terminal Services DLL

T1505.005

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 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\Local\Temp\HD_21c8148c78136d2e120993466b39944feb665191f35ef1d21815becde0b0c619.exe

Filesize
741KB

MD5
fb055df4e3d71ac71eff2fb9a0a64327

SHA1
6b5e6123ee1c0a68651c481c98980e5736087b96

SHA256
ba1162b5a1256d52f52d2cea58625ae449f397607bcf45d2be85e832d630d5f2

SHA512
dbf6a487064bf7cf2a656f37c2ed249e45e734d415c376c6db5109a80dc8d107945fd286d348eda0c317ad0b0f8880519fd85908ec0f1c6f2b6232c38e7b1e5c

Download Submit
C:\Users\Admin\AppData\Local\Temp\HD_X.dat

Filesize
2.4MB

MD5
0c2ac69f38e954866cb9684f36d00f2c

SHA1
a97d9f218a003cfee9e09476439c7dabf5313f69

SHA256
ce602cf0bd970de854f2eb1b0216ecc11aa48dfde0a3c8804d8a23f6ee0e99d4

SHA512
c3807fc7f9bf8216b77bb5c19f67ce26ec1faa87b193946d150f2a4add845d5842a1519e8a0b601fd4f51af0254ec7328204f5ca7536f76fe3dbb07154ea907a

Download Submit
C:\Users\Admin\AppData\Local\Temp\N.exe

Filesize
377KB

MD5
4a36a48e58829c22381572b2040b6fe0

SHA1
f09d30e44ff7e3f20a5de307720f3ad148c6143b

SHA256
3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

SHA512
5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-1163522206-1469769407-485553996-1000\58b509c3f65696668c836e38a17ee52b_9d81b961-0275-4281-8321-63119951606b

Filesize
52B

MD5
71f0a0976ffb68beb323f97d898bde77

SHA1
c89707a323bd14f34b97390cb8be7cf92113431e

SHA256
5c4647f65619cae1cf6a0ee07865199b68bdd3a825501f403866e11201ccd388

SHA512
620c78bbacdbadb92543ecc5a7a49d43ff5a0d1ec701fb301c9cd074df3a97b0c7a786de87b7680cde8f9dc85b7a43305b4bd7e06f4b7464d7afcf97628e610e

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

Filesize
941KB

MD5
8dc3adf1c490211971c1e2325f1424d2

SHA1
4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5

SHA256
bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c

SHA512
ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d

Download Submit
\Windows\SysWOW64\259439490.txt

Filesize
899KB

MD5
7cbb24afc7936f5aefffd6111219992c

SHA1
4e693ee584dcfeb16e1c038c535d91a29375e571

SHA256
de629ccd8dca8e200e07097b27a8619c96e210bf51e4f3bd7c4f103f25fd6126

SHA512
3e15722b4c19d0ac2d09011fdf8d0f3da363e4f0ed324ea956fd733142baf590342625174f5706511256f786aac12ce2e1d253bc6e8c1436c319032f34b8961a

Download Submit
\Windows\SysWOW64\Remote Data.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/1984-21-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1984-20-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1984-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2408-43-0x0000000002B50000-0x0000000002D08000-memory.dmp

Filesize
1.7MB

Download
memory/2408-71-0x0000000002B50000-0x0000000002D08000-memory.dmp

Filesize
1.7MB

Download
memory/2840-44-0x0000000000400000-0x00000000005B8000-memory.dmp

Filesize
1.7MB

Download
memory/2840-72-0x0000000000400000-0x00000000005B8000-memory.dmp

Filesize
1.7MB

Download
memory/2936-45-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2936-55-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download