gh0strat | 1d4f2f2dd1e2cac494a5a2ec30db8350798a9dba74b21738e92b426d07993232

Analysis

max time kernel
150s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
25/06/2024, 14:55

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General

Target
1d4f2f2dd1e2cac494a5a2ec30db8350798a9dba74b21738e92b426d07993232.exe
Size 5.0MB
Sample240625-sal8yswfkh
SHA256 1d4f2f2dd1e2cac494a5a2ec30db8350798a9dba74b21738e92b426d07993232
MD5 3ccde1e44fa53229a281b82a8c65f966
SHA1 fa974afce9351efc872af0a72c40bbcac49c553b
SHA512 a78672d4224dc3c32af10b3bef6628a21abe4ac65abdff7e45c169464635dbe2f2bc2de5d649910a6b2695c8b9a68b2f6ddd5692b8a6d93f2734e8dbbe3a43e1
SSDEEP 98304:lws2ANnKXOaeOgmhZDmn2ndDUwhDL7PQnmVK9IeExuV1ao:PKXbeO7Tmn6DhFL7PQmqfguVYo
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 7 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/3708-19-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3708-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3708-21-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2808-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2808-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3976-38-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3976-42-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 8 IoCs

resource	yara_rule
behavioral2/files/0x000a000000023559-5.dat	family_gh0strat
behavioral2/memory/3708-19-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3708-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3708-21-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2808-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2808-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3976-38-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3976-42-0x0000000010000000-0x00000000101B6000-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
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	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\\240596953.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
2660	R.exe
3708	N.exe
2808	TXPlatfor.exe
3976	TXPlatfor.exe
748	HD_1d4f2f2dd1e2cac494a5a2ec30db8350798a9dba74b21738e92b426d07993232.exe
4276	Remote Data.exe

Loads dropped DLL 3 IoCs

pid	Process
2660	R.exe
4488	svchost.exe
4276	Remote Data.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3708-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3708-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3708-21-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3708-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2808-26-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2808-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2808-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3976-38-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3976-42-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\240596953.txt	R.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	R.exe
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

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	1d4f2f2dd1e2cac494a5a2ec30db8350798a9dba74b21738e92b426d07993232.exe

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

System Information Discovery
T1082

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2240	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4072	1d4f2f2dd1e2cac494a5a2ec30db8350798a9dba74b21738e92b426d07993232.exe
4072	1d4f2f2dd1e2cac494a5a2ec30db8350798a9dba74b21738e92b426d07993232.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
3976	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3708	N.exe
Token: SeLoadDriverPrivilege	3976	TXPlatfor.exe
Token: 33	3976	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	3976	TXPlatfor.exe
Token: 33	3976	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	3976	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4072	1d4f2f2dd1e2cac494a5a2ec30db8350798a9dba74b21738e92b426d07993232.exe
4072	1d4f2f2dd1e2cac494a5a2ec30db8350798a9dba74b21738e92b426d07993232.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4072 wrote to memory of 2660	4072	1d4f2f2dd1e2cac494a5a2ec30db8350798a9dba74b21738e92b426d07993232.exe	82
PID 4072 wrote to memory of 2660	4072	1d4f2f2dd1e2cac494a5a2ec30db8350798a9dba74b21738e92b426d07993232.exe	82
PID 4072 wrote to memory of 2660	4072	1d4f2f2dd1e2cac494a5a2ec30db8350798a9dba74b21738e92b426d07993232.exe	82
PID 4072 wrote to memory of 3708	4072	1d4f2f2dd1e2cac494a5a2ec30db8350798a9dba74b21738e92b426d07993232.exe	85
PID 4072 wrote to memory of 3708	4072	1d4f2f2dd1e2cac494a5a2ec30db8350798a9dba74b21738e92b426d07993232.exe	85
PID 4072 wrote to memory of 3708	4072	1d4f2f2dd1e2cac494a5a2ec30db8350798a9dba74b21738e92b426d07993232.exe	85
PID 3708 wrote to memory of 2348	3708	N.exe	87
PID 3708 wrote to memory of 2348	3708	N.exe	87
PID 3708 wrote to memory of 2348	3708	N.exe	87
PID 2808 wrote to memory of 3976	2808	TXPlatfor.exe	88
PID 2808 wrote to memory of 3976	2808	TXPlatfor.exe	88
PID 2808 wrote to memory of 3976	2808	TXPlatfor.exe	88
PID 2348 wrote to memory of 2240	2348	cmd.exe	91
PID 2348 wrote to memory of 2240	2348	cmd.exe	91
PID 2348 wrote to memory of 2240	2348	cmd.exe	91
PID 4488 wrote to memory of 4276	4488	svchost.exe	98
PID 4488 wrote to memory of 4276	4488	svchost.exe	98
PID 4488 wrote to memory of 4276	4488	svchost.exe	98

C:\Users\Admin\AppData\Local\Temp\1d4f2f2dd1e2cac494a5a2ec30db8350798a9dba74b21738e92b426d07993232.exe
"C:\Users\Admin\AppData\Local\Temp\1d4f2f2dd1e2cac494a5a2ec30db8350798a9dba74b21738e92b426d07993232.exe"
1⤵
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4072
- 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
  PID:2660
- 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
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3708
- - 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⤵
    - Suspicious use of WriteProcessMemory
    PID:2348
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:2240
- C:\Users\Admin\AppData\Local\Temp\HD_1d4f2f2dd1e2cac494a5a2ec30db8350798a9dba74b21738e92b426d07993232.exe
  C:\Users\Admin\AppData\Local\Temp\HD_1d4f2f2dd1e2cac494a5a2ec30db8350798a9dba74b21738e92b426d07993232.exe
  2⤵
  - Executes dropped EXE
  PID:748

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:3800

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4488
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240596953.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:4276

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2808
- 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:3976

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 Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

HD_1d4f2f2dd1e2cac494a5a2ec30db8350798a9dba74b21738e92b426d07993232.exe

Path C:\Users\Admin\AppData\Local\Temp\HD_1d4f2f2dd1e2cac494a5a2ec30db8350798a9dba74b21738e92b426d07993232.exe
Size 2.4MB
SHA256 4a0d1cf4e859fae6b0814d86f1f365f857f1a130f7ed4120918de0bb06b5a1de
MD5 4645eb9958a5dedc6a31b1deb633fe28
SHA1 9164caf1615078d56f02101d977d9d211196b483
SHA512 25badc0460ee074e3671a9415341e3e22eda2352a18327f5164d7d8aaa818702704c32a70ce473983a5d615aa52d85945230b1e5f71361125390e149b0c8ef6e
SSDEEP 49152:EjJwYnqFwrYDMdk+L7EDAQ3XmEWK9gtA/ExuV1ebBcPAk:EdDUwhDL7PQnmVK9IeExuV1ao
MD5 SHA1 SHA512 SSDEEP

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HD_X.dat

Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Size 2.6MB
SHA256 c4eab1200935b36a999c89ce2e03fc3effdac9a9bdf09e1fabca9d02cab3205b
MD5 d5ce3d782b5eabeae5c32f571bd66707
SHA1 6859d7a73159d039bcdd55b57ad7388132771a7c
SHA512 15d0be03a3edd139b735d13b95ab161f1e4b27c6d4e90dbae9acb06be15b4f114901631b153a14825e006e32346b109cdfb5d652135b336a929a79fcd1fd4ce3
SSDEEP 49152:iCwsbCANnKXferL7Vwe/Gg0P+WhfhDmn2b:lws2ANnKXOaeOgmhZDmn2b
MD5 SHA1 SHA512 SSDEEP

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N.exe

Path C:\Users\Admin\AppData\Local\Temp\N.exe
Size 377KB
SHA256 3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8
MD5 4a36a48e58829c22381572b2040b6fe0
SHA1 f09d30e44ff7e3f20a5de307720f3ad148c6143b
SHA512 5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0
SSDEEP 6144:5UGp2l6zRmeVLNHfkQ2TAygOcqAJwQZgb4YtjH6/MuQafORzEOmFfMzi71o+YHL7:HclcceBKlKwAg0Mja/UafOVwbha
MD5 SHA1 SHA512 SSDEEP

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R.exe

Path C:\Users\Admin\AppData\Local\Temp\R.exe
Size 941KB
SHA256 bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c
MD5 8dc3adf1c490211971c1e2325f1424d2
SHA1 4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5
SHA512 ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d
SSDEEP 24576:N+wT1kfTw4SIuvB74fgt7ibhRM5QhKehFdMtRj7nH1PXw:cerL7Vw
MD5 SHA1 SHA512 SSDEEP

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240596953.txt

Path C:\Windows\SysWOW64\240596953.txt
Size 899KB
SHA256 c0bb1de720ee9abcec5c5517804d291da52b0d644196bc2b81e6c223168a7e88
MD5 7049bcb6cc7ab30129a8d9300d1dad62
SHA1 c52b8c7d54c768247ffd928b101399c9a67aa0e4
SHA512 5ebafd2f48b4b5448a51eee1ca994788c636b58f23d815d3e87f8d550e93e78b6cfc851ecf517faac85a2e5dd7de7d060a24fe6b3d124ecf9e3fd3fd6bf6749d
SSDEEP 24576:7V2bG+2gMir4fgt7ibhRM5QhKehFdMtRj7nH1PXi:7wqd87Vi
MD5 SHA1 SHA512 SSDEEP

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Remote Data.exe

Path C:\Windows\SysWOW64\Remote Data.exe
Size 60KB
SHA256 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
MD5 889b99c52a60dd49227c5e485a016679
SHA1 8fa889e456aa646a4d0a4349977430ce5fa5e2d7
SHA512 08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641
SSDEEP 1536:H9ykYCTdiHQKrFXmw2RQln5IUmDjoX6+:HlMHprF2nRQln5I
MD5 SHA1 SHA512 SSDEEP

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memory/2808-28-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2808-26-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2808-29-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3708-19-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3708-17-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3708-21-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3708-20-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3976-38-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3976-42-0x0000000010000000-0x00000000101B6000-memory.dmp

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