gh0strat | cf4c572775b0377452dcf606eb82779253ec81860afd6b6cb1f119f44388248b

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
06-11-2024 17:07

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General

Target

cf4c572775b0377452dcf606eb82779253ec81860afd6b6cb1f119f44388248b.exe
Size

2.8MB
MD5

d641cb587e05558722cc3eed752ac28b
SHA1

05e26f1b86653c88ad29e3f55ec89ff8973c48d9
SHA256

cf4c572775b0377452dcf606eb82779253ec81860afd6b6cb1f119f44388248b
SHA512

0716c62d3cb4ae18517a450c00bab8809875e48996bf56d3ca958244e96ee91a084747cf571233a3d68a0eeeb9154f8e0a03bca2f5c0abf2265bdd114df9d9a9
SSDEEP

24576:NCwsbKgbQ5NANIvGTYwMHXA+wT1kfTw4SIuvB74fgt7ibhRM5QhKehFdMtRj7nH3:NCwsbCANnKXferL7Vwe/Gg0P+Wh3/S1

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 8 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/5060-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/5060-21-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/5060-19-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3308-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3308-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3156-40-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3156-44-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3156-46-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral2/files/0x000b000000023b61-5.dat	family_gh0strat
behavioral2/memory/5060-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/5060-21-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/5060-19-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3308-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3308-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3156-40-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3156-44-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3156-46-0x0000000010000000-0x00000000101B6000-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\\240618921.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
1544	R.exe
5060	N.exe
3308	TXPlatfor.exe
3004	HD_cf4c572775b0377452dcf606eb82779253ec81860afd6b6cb1f119f44388248b.exe
3156	TXPlatfor.exe
4964	Remote Data.exe

Loads dropped DLL 3 IoCs

pid	Process
1544	R.exe
2072	svchost.exe
4964	Remote Data.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\240618921.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

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5060-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/5060-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/5060-21-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/5060-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3308-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3308-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3308-27-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3156-40-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3156-44-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3156-46-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

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	TXPlatfor.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Remote Data.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cf4c572775b0377452dcf606eb82779253ec81860afd6b6cb1f119f44388248b.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	N.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
516	cmd.exe
3544	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3544	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
436	cf4c572775b0377452dcf606eb82779253ec81860afd6b6cb1f119f44388248b.exe
436	cf4c572775b0377452dcf606eb82779253ec81860afd6b6cb1f119f44388248b.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
3156	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	5060	N.exe
Token: SeLoadDriverPrivilege	3156	TXPlatfor.exe
Token: 33	3156	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	3156	TXPlatfor.exe
Token: 33	3156	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	3156	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
436	cf4c572775b0377452dcf606eb82779253ec81860afd6b6cb1f119f44388248b.exe
436	cf4c572775b0377452dcf606eb82779253ec81860afd6b6cb1f119f44388248b.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 436 wrote to memory of 1544	436	cf4c572775b0377452dcf606eb82779253ec81860afd6b6cb1f119f44388248b.exe	86
PID 436 wrote to memory of 1544	436	cf4c572775b0377452dcf606eb82779253ec81860afd6b6cb1f119f44388248b.exe	86
PID 436 wrote to memory of 1544	436	cf4c572775b0377452dcf606eb82779253ec81860afd6b6cb1f119f44388248b.exe	86
PID 436 wrote to memory of 5060	436	cf4c572775b0377452dcf606eb82779253ec81860afd6b6cb1f119f44388248b.exe	89
PID 436 wrote to memory of 5060	436	cf4c572775b0377452dcf606eb82779253ec81860afd6b6cb1f119f44388248b.exe	89
PID 436 wrote to memory of 5060	436	cf4c572775b0377452dcf606eb82779253ec81860afd6b6cb1f119f44388248b.exe	89
PID 5060 wrote to memory of 516	5060	N.exe	91
PID 5060 wrote to memory of 516	5060	N.exe	91
PID 5060 wrote to memory of 516	5060	N.exe	91
PID 436 wrote to memory of 3004	436	cf4c572775b0377452dcf606eb82779253ec81860afd6b6cb1f119f44388248b.exe	92
PID 436 wrote to memory of 3004	436	cf4c572775b0377452dcf606eb82779253ec81860afd6b6cb1f119f44388248b.exe	92
PID 3308 wrote to memory of 3156	3308	TXPlatfor.exe	93
PID 3308 wrote to memory of 3156	3308	TXPlatfor.exe	93
PID 3308 wrote to memory of 3156	3308	TXPlatfor.exe	93
PID 516 wrote to memory of 3544	516	cmd.exe	96
PID 516 wrote to memory of 3544	516	cmd.exe	96
PID 516 wrote to memory of 3544	516	cmd.exe	96
PID 2072 wrote to memory of 4964	2072	svchost.exe	97
PID 2072 wrote to memory of 4964	2072	svchost.exe	97
PID 2072 wrote to memory of 4964	2072	svchost.exe	97

C:\Users\Admin\AppData\Local\Temp\cf4c572775b0377452dcf606eb82779253ec81860afd6b6cb1f119f44388248b.exe
"C:\Users\Admin\AppData\Local\Temp\cf4c572775b0377452dcf606eb82779253ec81860afd6b6cb1f119f44388248b.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:436
- 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:1544
- 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:5060
- - 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:516
  - - 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:3544
- C:\Users\Admin\AppData\Local\Temp\HD_cf4c572775b0377452dcf606eb82779253ec81860afd6b6cb1f119f44388248b.exe
  C:\Users\Admin\AppData\Local\Temp\HD_cf4c572775b0377452dcf606eb82779253ec81860afd6b6cb1f119f44388248b.exe
  2⤵
  - Executes dropped EXE
  PID:3004

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:640

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:2072
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240618921.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:4964

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3308
- 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:3156

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_X.dat

Filesize
2.7MB

MD5
b46ff556931ec8423a370f88da585e77

SHA1
fa1e6238323e607e2b58ed45dd540aea5c5ca362

SHA256
0844657184209ed4aad3717d5861d811f5fcec4618fb998ede7779b0e2d81988

SHA512
6aaeabcc2c1dc39c07c41801fc2f3579a8fbcf9eec4efe308c3e088b293da05f65e5994f2b179ced7f300544a635989d872d2dc808a9057b45dff4db067ce9fd

Download Submit
C:\Users\Admin\AppData\Local\Temp\HD_cf4c572775b0377452dcf606eb82779253ec81860afd6b6cb1f119f44388248b.exe

Filesize
139KB

MD5
562fc3a0d21968c14aca98c2fa50dc1d

SHA1
0a26d1b659eec7464c809e2ec82ffa79829824e5

SHA256
872940d5056579e69abab5a45bdab56ba0e3ba30e120f3aa9f9782e3e26c0935

SHA512
4008b3f3f790058065ab4ad8c90c9a40f8d19c1bd7bd756dea0bd9ab9c4ba408132ed772ee2fff8f061023b857135334d8e430e1156ce3308cba379408d4ad58

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\Local\Temp\R.exe

Filesize
941KB

MD5
8dc3adf1c490211971c1e2325f1424d2

SHA1
4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5

SHA256
bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c

SHA512
ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d

Download Submit
C:\Windows\SysWOW64\240618921.txt

Filesize
899KB

MD5
4690632d551e35bb62a8387c047b8d6f

SHA1
e1c816034596930d4d109f6efbdf799a0c3ee992

SHA256
f7dc271f45a7b0c52fb0247837a035b320be29d88f32775eb01a3eae551cbc99

SHA512
a9d19a21bba339796b3375eca4a2c8dbad97804addce30b9f5f8292c32668e4de5b860aad751c2f690eab798829d4d258e9fd79bc077e49d56745d97338823aa

Download Submit
C:\Windows\SysWOW64\Remote Data.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
memory/3156-46-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3156-44-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3156-40-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3308-28-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3308-27-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3308-29-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/5060-19-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/5060-21-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/5060-20-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/5060-17-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download