gh0strat | ff0f4e37b1b32789eb3b0dc7b926ef95a92dab989bb5f35b4a6715d8bb92abb6

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
25/06/2024, 14:24

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General

Target
ff0f4e37b1b32789eb3b0dc7b926ef95a92dab989bb5f35b4a6715d8bb92abb6.exe
Size 3.1MB
Sample240625-rqrmyaxhpp
SHA256 ff0f4e37b1b32789eb3b0dc7b926ef95a92dab989bb5f35b4a6715d8bb92abb6
MD5 e8abef9d89fb0ee27a5bf95fa6005a8e
SHA1 a624f1b2dcefc2c1527cf660764d625a1a8e5bcb
SHA512 f7a3e9346019d44bcf49fab740e3d90d8a129982744fa4116584a7f28b2efcd73269f7f04c6b797a8956ef2e2b2b185b95aa13178a58c3d35767f828246f60b1
SSDEEP 49152:HCwsbCANnKXferL7Vwe/Gg0P+WhSevVdILObKfgt1Daom:iws2ANnKXOaeOgmhSevVdILObSgnaom
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/4908-23-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4908-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1152-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1152-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4908-30-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3840-52-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3840-57-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 8 IoCs

resource	yara_rule
behavioral2/files/0x00080000000233f5-5.dat	family_gh0strat
behavioral2/memory/4908-23-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4908-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1152-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1152-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4908-30-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3840-52-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3840-57-0x0000000010000000-0x00000000101B6000-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\\240601000.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
4700	R.exe
4908	N.exe
1152	TXPlatfor.exe
2556	HD_ff0f4e37b1b32789eb3b0dc7b926ef95a92dab989bb5f35b4a6715d8bb92abb6.exe
3840	TXPlatfor.exe
924	Remote Data.exe

Loads dropped DLL 3 IoCs

pid	Process
4700	R.exe
4252	svchost.exe
924	Remote Data.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4908-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4908-23-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4908-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1152-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1152-26-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1152-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4908-30-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3840-52-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3840-57-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\240601000.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	ff0f4e37b1b32789eb3b0dc7b926ef95a92dab989bb5f35b4a6715d8bb92abb6.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
3424	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1504	ff0f4e37b1b32789eb3b0dc7b926ef95a92dab989bb5f35b4a6715d8bb92abb6.exe
1504	ff0f4e37b1b32789eb3b0dc7b926ef95a92dab989bb5f35b4a6715d8bb92abb6.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
3840	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4908	N.exe
Token: SeLoadDriverPrivilege	3840	TXPlatfor.exe
Token: 33	3840	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	3840	TXPlatfor.exe
Token: 33	3840	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	3840	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1504	ff0f4e37b1b32789eb3b0dc7b926ef95a92dab989bb5f35b4a6715d8bb92abb6.exe
1504	ff0f4e37b1b32789eb3b0dc7b926ef95a92dab989bb5f35b4a6715d8bb92abb6.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1504 wrote to memory of 4700	1504	ff0f4e37b1b32789eb3b0dc7b926ef95a92dab989bb5f35b4a6715d8bb92abb6.exe	81
PID 1504 wrote to memory of 4700	1504	ff0f4e37b1b32789eb3b0dc7b926ef95a92dab989bb5f35b4a6715d8bb92abb6.exe	81
PID 1504 wrote to memory of 4700	1504	ff0f4e37b1b32789eb3b0dc7b926ef95a92dab989bb5f35b4a6715d8bb92abb6.exe	81
PID 1504 wrote to memory of 4908	1504	ff0f4e37b1b32789eb3b0dc7b926ef95a92dab989bb5f35b4a6715d8bb92abb6.exe	84
PID 1504 wrote to memory of 4908	1504	ff0f4e37b1b32789eb3b0dc7b926ef95a92dab989bb5f35b4a6715d8bb92abb6.exe	84
PID 1504 wrote to memory of 4908	1504	ff0f4e37b1b32789eb3b0dc7b926ef95a92dab989bb5f35b4a6715d8bb92abb6.exe	84
PID 4908 wrote to memory of 4680	4908	N.exe	86
PID 4908 wrote to memory of 4680	4908	N.exe	86
PID 4908 wrote to memory of 4680	4908	N.exe	86
PID 1504 wrote to memory of 2556	1504	ff0f4e37b1b32789eb3b0dc7b926ef95a92dab989bb5f35b4a6715d8bb92abb6.exe	89
PID 1504 wrote to memory of 2556	1504	ff0f4e37b1b32789eb3b0dc7b926ef95a92dab989bb5f35b4a6715d8bb92abb6.exe	89
PID 1504 wrote to memory of 2556	1504	ff0f4e37b1b32789eb3b0dc7b926ef95a92dab989bb5f35b4a6715d8bb92abb6.exe	89
PID 1152 wrote to memory of 3840	1152	TXPlatfor.exe	88
PID 1152 wrote to memory of 3840	1152	TXPlatfor.exe	88
PID 1152 wrote to memory of 3840	1152	TXPlatfor.exe	88
PID 4680 wrote to memory of 3424	4680	cmd.exe	90
PID 4680 wrote to memory of 3424	4680	cmd.exe	90
PID 4680 wrote to memory of 3424	4680	cmd.exe	90
PID 4252 wrote to memory of 924	4252	svchost.exe	91
PID 4252 wrote to memory of 924	4252	svchost.exe	91
PID 4252 wrote to memory of 924	4252	svchost.exe	91

C:\Users\Admin\AppData\Local\Temp\ff0f4e37b1b32789eb3b0dc7b926ef95a92dab989bb5f35b4a6715d8bb92abb6.exe
"C:\Users\Admin\AppData\Local\Temp\ff0f4e37b1b32789eb3b0dc7b926ef95a92dab989bb5f35b4a6715d8bb92abb6.exe"
1⤵
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1504
- 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:4700
- 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:4908
- - 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:4680
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:3424
- C:\Users\Admin\AppData\Local\Temp\HD_ff0f4e37b1b32789eb3b0dc7b926ef95a92dab989bb5f35b4a6715d8bb92abb6.exe
  C:\Users\Admin\AppData\Local\Temp\HD_ff0f4e37b1b32789eb3b0dc7b926ef95a92dab989bb5f35b4a6715d8bb92abb6.exe
  2⤵
  - Executes dropped EXE
  PID:2556

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:2716

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:4252
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240601000.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:924

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1152
- 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:3840

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_X.dat

Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Size 2.3MB
SHA256 4d4b501f3c3eb81374636b75d94eb24237ca01eb5ab6622ad51d2e903018786c
MD5 299ce567b8f0676f043ae5ac2a8c9e1d
SHA1 ff8ee3f9afafda4d49b521dbc13e7db4f29909ae
SHA512 40b993223250558794e8097c409dfa59ad0bfa0c63f8778c5800beef6830e8cca5ebad2eea0f3b4bafdd91d9025a40141de2c77e52dccd68803bec660c834946
SSDEEP 24576:HCwsbKgbQ5NANIvGTYwMHXA+wT1kfTw4SIuvB74fgt7ibhRM5QhKehFdMtRj7nH4:HCwsbCANnKXferL7Vwe/Gg0P+WhSeh
MD5 SHA1 SHA512 SSDEEP

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HD_ff0f4e37b1b32789eb3b0dc7b926ef95a92dab989bb5f35b4a6715d8bb92abb6.exe

Path C:\Users\Admin\AppData\Local\Temp\HD_ff0f4e37b1b32789eb3b0dc7b926ef95a92dab989bb5f35b4a6715d8bb92abb6.exe
Size 785KB
SHA256 f1a856aec3d8683f01849ed3fd179844efe442c3f1d1f90b3922b7e4b1150396
MD5 fc22e7a3c6ae4d60d563451dccd4b568
SHA1 eb2d3225ffa879b27929420f645ef89716de672a
SHA512 51f7883284a7201b6dbb6ceb1851fbfbeb23a03aa094fffa95f413283989e84c85879bc60a68b518406cddd67f555ea03c8358e55cd205c889ced059b11c666b
SSDEEP 12288:F+Jru9KosdIkuOYDQP7yMGfgpAbPH5V8F1ZoiQOIYLGrJksIZrcwb2XMvKA0Hbga:85u9YdIkuObKfgpkPHIF1DoFos7
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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240601000.txt

Path C:\Windows\SysWOW64\240601000.txt
Size 899KB
SHA256 005d7c3c5f5105d700a4adc64ca87ffa41daed82415a6adece04f96ad448d53c
MD5 bc28e7a8d8710a1e95400f733e9fa06c
SHA1 2bed00db341601cc10c2a9e0482f40bdae11d5c3
SHA512 f279abc33c4891c1022faba39146771abba0b55da394043795bfeadb74290b73ea285dbb8661492bed86777debd664f1c820c074f5457f082ee3ed484b8cf98d
SSDEEP 24576:7V2bG+2gMir4fgt7ibhRM5QhKehFdMtRj7nH1PXO:7wqd87VO
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/1152-28-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/1152-26-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/1152-29-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3840-57-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3840-52-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4908-17-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4908-30-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4908-20-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4908-23-0x0000000010000000-0x00000000101B6000-memory.dmp

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