gh0strat | 631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc

Analysis

max time kernel
150s
max time network
123s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
28-12-2024 15:46

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General

Target

631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc.exe
Size

2.9MB
MD5

a28477eb15fd021498b4822f3e99c2a1
SHA1

2e2006f8363901d3da0303bca850181b369d2f32
SHA256

631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc
SHA512

55b2c247f669254c9edb6fcab4f13cd3ae49cc204f228fdb220d1d1d41e21dd7957bdb11842008c15d87af5f197084d3935d2253a63f5199e27001488252ce8f
SSDEEP

49152:OCwsbCANnKXferL7Vwe/Gg0P+WhIsABTu/ifu:pws2ANnKXOaeOgmhI1BTu/ifu

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 5 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/2336-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2336-21-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2864-45-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2864-46-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2864-49-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 6 IoCs

resource	yara_rule
behavioral1/files/0x0007000000019490-6.dat	family_gh0strat
behavioral1/memory/2336-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2336-21-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2864-45-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2864-46-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2864-49-0x0000000010000000-0x00000000101B6000-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\\259445777.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
2496	R.exe
2336	N.exe
2332	TXPlatfor.exe
2864	TXPlatfor.exe
2604	HD_631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc.exe
2088	Remote Data.exe

Loads dropped DLL 9 IoCs

pid	Process
576	631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc.exe
2496	R.exe
1752	svchost.exe
576	631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc.exe
2332	TXPlatfor.exe
576	631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc.exe
2888	Process not Found
1752	svchost.exe
2088	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\259445777.txt	R.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	R.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2336-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2336-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2336-21-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2864-45-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2864-46-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2864-49-0x0000000010000000-0x00000000101B6000-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	R.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Remote Data.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc.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
3008	PING.EXE
2860	cmd.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3008	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
576	631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2864	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2336	N.exe
Token: SeLoadDriverPrivilege	2864	TXPlatfor.exe
Token: 33	2864	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2864	TXPlatfor.exe
Token: 33	2864	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2864	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
576	631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc.exe
576	631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 576 wrote to memory of 2496	576	631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc.exe	31
PID 576 wrote to memory of 2496	576	631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc.exe	31
PID 576 wrote to memory of 2496	576	631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc.exe	31
PID 576 wrote to memory of 2496	576	631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc.exe	31
PID 576 wrote to memory of 2336	576	631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc.exe	34
PID 576 wrote to memory of 2336	576	631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc.exe	34
PID 576 wrote to memory of 2336	576	631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc.exe	34
PID 576 wrote to memory of 2336	576	631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc.exe	34
PID 576 wrote to memory of 2336	576	631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc.exe	34
PID 576 wrote to memory of 2336	576	631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc.exe	34
PID 576 wrote to memory of 2336	576	631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc.exe	34
PID 2336 wrote to memory of 2860	2336	N.exe	36
PID 2336 wrote to memory of 2860	2336	N.exe	36
PID 2336 wrote to memory of 2860	2336	N.exe	36
PID 2336 wrote to memory of 2860	2336	N.exe	36
PID 2332 wrote to memory of 2864	2332	TXPlatfor.exe	37
PID 2332 wrote to memory of 2864	2332	TXPlatfor.exe	37
PID 2332 wrote to memory of 2864	2332	TXPlatfor.exe	37
PID 2332 wrote to memory of 2864	2332	TXPlatfor.exe	37
PID 2332 wrote to memory of 2864	2332	TXPlatfor.exe	37
PID 2332 wrote to memory of 2864	2332	TXPlatfor.exe	37
PID 2332 wrote to memory of 2864	2332	TXPlatfor.exe	37
PID 576 wrote to memory of 2604	576	631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc.exe	39
PID 576 wrote to memory of 2604	576	631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc.exe	39
PID 576 wrote to memory of 2604	576	631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc.exe	39
PID 576 wrote to memory of 2604	576	631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc.exe	39
PID 2860 wrote to memory of 3008	2860	cmd.exe	41
PID 2860 wrote to memory of 3008	2860	cmd.exe	41
PID 2860 wrote to memory of 3008	2860	cmd.exe	41
PID 2860 wrote to memory of 3008	2860	cmd.exe	41
PID 1752 wrote to memory of 2088	1752	svchost.exe	42
PID 1752 wrote to memory of 2088	1752	svchost.exe	42
PID 1752 wrote to memory of 2088	1752	svchost.exe	42
PID 1752 wrote to memory of 2088	1752	svchost.exe	42

C:\Users\Admin\AppData\Local\Temp\631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc.exe
"C:\Users\Admin\AppData\Local\Temp\631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:576
- 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:2496
- 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:2336
- - 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:2860
  - - 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:3008
- C:\Users\Admin\AppData\Local\Temp\HD_631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc.exe
  C:\Users\Admin\AppData\Local\Temp\HD_631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc.exe
  2⤵
  - Executes dropped EXE
  PID:2604

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:484

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:1752
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\259445777.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2088

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:2332
- 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:2864

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
2.6MB

MD5
97958c76750221e2953392782e393c54

SHA1
125961f3d7ba5404792478b929e331a3188c0e42

SHA256
93bba883b08d311455ffdcd4c2a8f70a5e5eb4294a158c840ef6757b10259f6b

SHA512
2d5cfb8751911c4d3980cf2059e87c37ef3d9cf02736d8494f8983a05677abbcc750613b2d609540e0c317b94359b74b8347491a9417b36a3ad5b2d03d6363e2

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

Filesize
377KB

MD5
4a36a48e58829c22381572b2040b6fe0

SHA1
f09d30e44ff7e3f20a5de307720f3ad148c6143b

SHA256
3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

SHA512
5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

Download Submit
\Users\Admin\AppData\Local\Temp\HD_631b7c44a5370789c543feeeceb424b74e5e9ab1e523aadf4d959fcfadd945bc.exe

Filesize
356KB

MD5
50220dee05da5eca314b88b1e2654655

SHA1
f8490491ed62e5600901dccf2e955a51597304ed

SHA256
5089c347c668e8acb822f67e12ead483ef17a3ce3e8429a0b79989a1e9866979

SHA512
1ebdf1c65973da91e36ff9af6a705f4c629e2ac7155b12beccf560903e5b35b0088b602ce71d4880d4db72c9fd431cd2a9882516c1bc965368b226a4f6158492

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

Filesize
941KB

MD5
8dc3adf1c490211971c1e2325f1424d2

SHA1
4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5

SHA256
bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c

SHA512
ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d

Download Submit
\Windows\SysWOW64\259445777.txt

Filesize
899KB

MD5
f2365a78226a34d18d08885fc68f23bb

SHA1
d11308c2accb9324ec049b19c87fe6d4bbab159c

SHA256
9102c9e3e5d0009706b86d898107c236b0d01e28fd596d45ab9e5e00265cab5f

SHA512
850381d4d507796cf534d8c5f4f2879a1f8d45d03205dcdd09b71bdffdc371aa2d5fc36dca48c8c9e7fc264044650f42b54d7f8432693e726b6624fe68416e96

Download Submit
\Windows\SysWOW64\Remote Data.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/2336-20-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2336-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2336-21-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2864-45-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2864-46-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2864-49-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download