gh0strat | b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe

Analysis

max time kernel
150s
max time network
121s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
28/05/2024, 22:10

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General

Target
b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe.exe
Size 15.0MB
Sample240528-13dfhsed6x
SHA256 b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe
MD5 c70815c0ee9f1df79cece94c043463ed
SHA1 178808b9408d76291c266ed5f045424210cb84a7
SHA512 7e0400b0b7c99b1dc12e01a1c7b3785ac369fffc36bf16ddf845e903a26b0a16612e2a39722c90088acddd3d209ef5ad8ea5c5e804561fbd973cc87762d5b4ac
SSDEEP 98304:vws2ANnKXOaeOgmhWA1dB92YuJ0k5J4kVwiu8BnJ/u9ZSh81PTRYN:ZKXbeO7w0kH44p4TRYN
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 5 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/2592-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2592-21-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2740-43-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2740-48-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2740-47-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 6 IoCs

resource	yara_rule
behavioral1/files/0x00370000000164a9-6.dat	family_gh0strat
behavioral1/memory/2592-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2592-21-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2740-43-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2740-48-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2740-47-0x0000000010000000-0x00000000101B6000-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

Sets DLL path for service in the 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\Remote Data\Parameters\ServiceDll = "C:\\Windows\\system32\\259402534.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
2092	R.exe
2592	N.exe
2604	TXPlatfor.exe
2680	HD_b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe.exe
2740	TXPlatfor.exe
2344	Remote Data.exe

Loads dropped DLL 8 IoCs

pid	Process
1012	b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe.exe
2092	R.exe
2544	svchost.exe
1012	b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe.exe
2604	TXPlatfor.exe
1012	b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe.exe
2544	svchost.exe
2344	Remote Data.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2592-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2592-21-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2592-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2740-43-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2740-48-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2740-47-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

description	ioc	Process
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\259402534.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

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2452	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1012	b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2740	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2592	N.exe
Token: SeLoadDriverPrivilege	2740	TXPlatfor.exe
Token: 33	2740	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2740	TXPlatfor.exe
Token: 33	2740	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2740	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1012	b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe.exe
1012	b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 1012 wrote to memory of 2092	1012	b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe.exe	28
PID 1012 wrote to memory of 2092	1012	b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe.exe	28
PID 1012 wrote to memory of 2092	1012	b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe.exe	28
PID 1012 wrote to memory of 2092	1012	b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe.exe	28
PID 1012 wrote to memory of 2592	1012	b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe.exe	31
PID 1012 wrote to memory of 2592	1012	b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe.exe	31
PID 1012 wrote to memory of 2592	1012	b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe.exe	31
PID 1012 wrote to memory of 2592	1012	b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe.exe	31
PID 1012 wrote to memory of 2592	1012	b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe.exe	31
PID 1012 wrote to memory of 2592	1012	b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe.exe	31
PID 1012 wrote to memory of 2592	1012	b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe.exe	31
PID 2592 wrote to memory of 3020	2592	N.exe	33
PID 2592 wrote to memory of 3020	2592	N.exe	33
PID 2592 wrote to memory of 3020	2592	N.exe	33
PID 2592 wrote to memory of 3020	2592	N.exe	33
PID 1012 wrote to memory of 2680	1012	b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe.exe	36
PID 1012 wrote to memory of 2680	1012	b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe.exe	36
PID 1012 wrote to memory of 2680	1012	b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe.exe	36
PID 1012 wrote to memory of 2680	1012	b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe.exe	36
PID 2604 wrote to memory of 2740	2604	TXPlatfor.exe	35
PID 2604 wrote to memory of 2740	2604	TXPlatfor.exe	35
PID 2604 wrote to memory of 2740	2604	TXPlatfor.exe	35
PID 2604 wrote to memory of 2740	2604	TXPlatfor.exe	35
PID 2604 wrote to memory of 2740	2604	TXPlatfor.exe	35
PID 2604 wrote to memory of 2740	2604	TXPlatfor.exe	35
PID 2604 wrote to memory of 2740	2604	TXPlatfor.exe	35
PID 3020 wrote to memory of 2452	3020	cmd.exe	37
PID 3020 wrote to memory of 2452	3020	cmd.exe	37
PID 3020 wrote to memory of 2452	3020	cmd.exe	37
PID 3020 wrote to memory of 2452	3020	cmd.exe	37
PID 2544 wrote to memory of 2344	2544	svchost.exe	38
PID 2544 wrote to memory of 2344	2544	svchost.exe	38
PID 2544 wrote to memory of 2344	2544	svchost.exe	38
PID 2544 wrote to memory of 2344	2544	svchost.exe	38

C:\Users\Admin\AppData\Local\Temp\b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe.exe
"C:\Users\Admin\AppData\Local\Temp\b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1012
- C:\Users\Admin\AppData\Local\Temp\R.exe
  C:\Users\Admin\AppData\Local\Temp\\R.exe
  2⤵
  - Sets DLL path for service in the registry
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  PID:2092
- 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:2592
- - 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:3020
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:2452
- C:\Users\Admin\AppData\Local\Temp\HD_b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe.exe
  C:\Users\Admin\AppData\Local\Temp\HD_b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe.exe
  2⤵
  - Executes dropped EXE
  PID:2680

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:2744

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:2544
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\259402534.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2344

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2604
- 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:2740

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

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

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 2.6MB
SHA256 5c9c982208faa17c72f0df22f25e8517f589e07bcfb1ddb7783976f0676549d7
MD5 1d2d18d934dab8b7160d8764ccc97e58
SHA1 506c3165ae85020a57e883db627dfacc576be708
SHA512 423e2b76d465c64a1c09a882932b8a4da0d9a0c8103446b78b4e090b0999b1f5305cfadec110dc9d8bf82fb42797fa0b8969d72fb5d7b9018fa92e6bce73932d
SSDEEP 24576:8CwsbKgbQ5NANIvGTYwMHXA+wT1kfTw4SIuvB74fgt7ibhRM5QhKehFdMtRj7nHb:8CwsbCANnKXferL7Vwe/Gg0P+Whod
MD5 SHA1 SHA512 SSDEEP

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HD_b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe.exe

Path C:\Users\Admin\AppData\Local\Temp\HD_b88609105ea952c5a4a82dc86d03eb5e9c177dc9cf1f70f961917d4eebfad0fe.exe
Size 12.4MB
SHA256 db6edae53ce090e7602a486d5e56c6f0852a87b2b61e0053ec58fb1889cee774
MD5 85bce6e01dfbc8b524ce45cd31737455
SHA1 cc5140b97625fa97ae08fe479a9b4bd3e6d6cf4d
SHA512 5fc7a1f465ebca857897d3999c4a4ac311aeb72f9df423bf14bb8a6757b9795f08613f807b4ab3477558abe3c8fa41f12add10a2988d48a91166c2d0be68aeac
SSDEEP 98304:IA1dB92YuJ0k5J4kVwiu8BnJ/u9ZSh81PTRYN:o0kH44p4TRYN
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 \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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259402534.txt

Path \Windows\SysWOW64\259402534.txt
Size 899KB
SHA256 cf89ad2e62d1960bfc0d5790ea1eef650796b9846519d01e703630e8e4704815
MD5 d875b4362f474560ff1d10747761e506
SHA1 2188409611f85f5631754be1d8589a9f851cd643
SHA512 a30ca79f8aa36a4707f2591a979d9c9abaae367c16d9fb0f7253d31d1e2d02408f4f2801b4451ff23b03efa679cf108736b8dc6dfebd78297662661be6a59175
SSDEEP 24576:7V2bG+2gMir4fgt7ibhRM5QhKehFdMtRj7nH1PXO:7wqd87VO
MD5 SHA1 SHA512 SSDEEP

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Remote Data.exe

Path \Windows\SysWOW64\Remote Data.exe
Size 43KB
SHA256 5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124
MD5 51138beea3e2c21ec44d0932c71762a8
SHA1 8939cf35447b22dd2c6e6f443446acc1bf986d58
SHA512 794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d
SSDEEP 768:mD+ellQvZSazSRqbSEln5IyYpamDjobj8SpM:E+QWvZhSRqln5IUmDjoXV
MD5 SHA1 SHA512 SSDEEP

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memory/2592-20-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2592-21-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2592-18-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2740-43-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2740-48-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2740-47-0x0000000010000000-0x00000000101B6000-memory.dmp

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