gh0strat | ef3d13354adca34c32c772582fcc164eac5fea98027e08d29ad91a7e252ac3fc

Analysis

max time kernel
150s
max time network
123s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
01-07-2024 04:27

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General

Target

ef3d13354adca34c32c772582fcc164eac5fea98027e08d29ad91a7e252ac3fc.exe
Size

2.6MB
MD5

25ceb82bd4d282e3649b12158e8fe97e
SHA1

5d56d7d73cf270ab19075c80e757d086d6dfdb48
SHA256

ef3d13354adca34c32c772582fcc164eac5fea98027e08d29ad91a7e252ac3fc
SHA512

c189900bc61c4607958c9709ebe66d423b7ad142b711fd6baff99f4b19a51c52dc5b6102a16931eac3517513516dacbc3b990bc06c78c701ff653f442c1ff7a3
SSDEEP

24576:KCwsbKgbQ5NANIvGTYwMHXA+wT1kfTw4SIuvB74fgt7ibhRM5QhKehFdMtRj7nHA:KCwsbCANnKXferL7Vwe/Gg0P+Whokv

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 7 IoCs

Detect PurpleFox Rootkit.

rootkit

Processes:

resource	yara_rule
behavioral1/memory/2572-21-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2572-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2092-36-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2092-37-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2092-38-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2092-42-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2092-43-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 8 IoCs

Processes:

resource	yara_rule
\Windows\SysWOW64\259394562.txt	family_gh0strat
behavioral1/memory/2572-21-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2572-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2092-36-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2092-37-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2092-38-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2092-42-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2092-43-0x0000000010000000-0x00000000101B6000-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

Processes:

TXPlatfor.exe

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

Processes:

R.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Remote Data\Parameters\ServiceDll = "C:\\Windows\\system32\\259394562.txt" R.exe
Sets service image path in registry 2 TTPs 1 IoCs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

Processes:

TXPlatfor.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys" TXPlatfor.exe
Executes dropped EXE 5 IoCs

Processes:

R.exeN.exeTXPlatfor.exeTXPlatfor.exeRemote Data.exe

pid process

616 R.exe
2572 N.exe
2720 TXPlatfor.exe
2092 TXPlatfor.exe
1596 Remote Data.exe

description	ioc	process
File created	C:\Windows\system32\drivers\QAssist.sys	TXPlatfor.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Remote Data\Parameters\ServiceDll = "C:\\Windows\\system32\\259394562.txt"	R.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys"	TXPlatfor.exe

pid	process
616	R.exe
2572	N.exe
2720	TXPlatfor.exe
2092	TXPlatfor.exe
1596	Remote Data.exe

Loads dropped DLL 7 IoCs

Processes:

ef3d13354adca34c32c772582fcc164eac5fea98027e08d29ad91a7e252ac3fc.exeR.exesvchost.exeTXPlatfor.exeRemote Data.exe

pid	process
2964	ef3d13354adca34c32c772582fcc164eac5fea98027e08d29ad91a7e252ac3fc.exe
616	R.exe
2976	svchost.exe
2964	ef3d13354adca34c32c772582fcc164eac5fea98027e08d29ad91a7e252ac3fc.exe
2720	TXPlatfor.exe
2976	svchost.exe
1596	Remote Data.exe

UPX packed file 9 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2572-21-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2572-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2572-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2092-34-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2092-36-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2092-37-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2092-38-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2092-42-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2092-43-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

Processes:

svchost.exeN.exeR.exe

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\259394562.txt	R.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	R.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

2448 PING.EXE
Suspicious behavior: LoadsDriver 1 IoCs

Processes:

TXPlatfor.exe

pid process

2092 TXPlatfor.exe

pid	process
2448	PING.EXE

pid	process
2092	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

N.exeTXPlatfor.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	2572	N.exe
Token: SeLoadDriverPrivilege	2092	TXPlatfor.exe
Token: 33	2092	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2092	TXPlatfor.exe
Token: 33	2092	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2092	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

ef3d13354adca34c32c772582fcc164eac5fea98027e08d29ad91a7e252ac3fc.exe

pid process

2964 ef3d13354adca34c32c772582fcc164eac5fea98027e08d29ad91a7e252ac3fc.exe
2964 ef3d13354adca34c32c772582fcc164eac5fea98027e08d29ad91a7e252ac3fc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

ef3d13354adca34c32c772582fcc164eac5fea98027e08d29ad91a7e252ac3fc.exeN.exeTXPlatfor.execmd.exesvchost.exe

description	pid	process	target process
PID 2964 wrote to memory of 616	2964	ef3d13354adca34c32c772582fcc164eac5fea98027e08d29ad91a7e252ac3fc.exe	R.exe
PID 2964 wrote to memory of 616	2964	ef3d13354adca34c32c772582fcc164eac5fea98027e08d29ad91a7e252ac3fc.exe	R.exe
PID 2964 wrote to memory of 616	2964	ef3d13354adca34c32c772582fcc164eac5fea98027e08d29ad91a7e252ac3fc.exe	R.exe
PID 2964 wrote to memory of 616	2964	ef3d13354adca34c32c772582fcc164eac5fea98027e08d29ad91a7e252ac3fc.exe	R.exe
PID 2964 wrote to memory of 2572	2964	ef3d13354adca34c32c772582fcc164eac5fea98027e08d29ad91a7e252ac3fc.exe	N.exe
PID 2964 wrote to memory of 2572	2964	ef3d13354adca34c32c772582fcc164eac5fea98027e08d29ad91a7e252ac3fc.exe	N.exe
PID 2964 wrote to memory of 2572	2964	ef3d13354adca34c32c772582fcc164eac5fea98027e08d29ad91a7e252ac3fc.exe	N.exe
PID 2964 wrote to memory of 2572	2964	ef3d13354adca34c32c772582fcc164eac5fea98027e08d29ad91a7e252ac3fc.exe	N.exe
PID 2964 wrote to memory of 2572	2964	ef3d13354adca34c32c772582fcc164eac5fea98027e08d29ad91a7e252ac3fc.exe	N.exe
PID 2964 wrote to memory of 2572	2964	ef3d13354adca34c32c772582fcc164eac5fea98027e08d29ad91a7e252ac3fc.exe	N.exe
PID 2964 wrote to memory of 2572	2964	ef3d13354adca34c32c772582fcc164eac5fea98027e08d29ad91a7e252ac3fc.exe	N.exe
PID 2572 wrote to memory of 2744	2572	N.exe	cmd.exe
PID 2572 wrote to memory of 2744	2572	N.exe	cmd.exe
PID 2572 wrote to memory of 2744	2572	N.exe	cmd.exe
PID 2572 wrote to memory of 2744	2572	N.exe	cmd.exe
PID 2720 wrote to memory of 2092	2720	TXPlatfor.exe	TXPlatfor.exe
PID 2720 wrote to memory of 2092	2720	TXPlatfor.exe	TXPlatfor.exe
PID 2720 wrote to memory of 2092	2720	TXPlatfor.exe	TXPlatfor.exe
PID 2720 wrote to memory of 2092	2720	TXPlatfor.exe	TXPlatfor.exe
PID 2720 wrote to memory of 2092	2720	TXPlatfor.exe	TXPlatfor.exe
PID 2720 wrote to memory of 2092	2720	TXPlatfor.exe	TXPlatfor.exe
PID 2720 wrote to memory of 2092	2720	TXPlatfor.exe	TXPlatfor.exe
PID 2744 wrote to memory of 2448	2744	cmd.exe	PING.EXE
PID 2744 wrote to memory of 2448	2744	cmd.exe	PING.EXE
PID 2744 wrote to memory of 2448	2744	cmd.exe	PING.EXE
PID 2744 wrote to memory of 2448	2744	cmd.exe	PING.EXE
PID 2976 wrote to memory of 1596	2976	svchost.exe	Remote Data.exe
PID 2976 wrote to memory of 1596	2976	svchost.exe	Remote Data.exe
PID 2976 wrote to memory of 1596	2976	svchost.exe	Remote Data.exe
PID 2976 wrote to memory of 1596	2976	svchost.exe	Remote Data.exe

C:\Users\Admin\AppData\Local\Temp\ef3d13354adca34c32c772582fcc164eac5fea98027e08d29ad91a7e252ac3fc.exe
"C:\Users\Admin\AppData\Local\Temp\ef3d13354adca34c32c772582fcc164eac5fea98027e08d29ad91a7e252ac3fc.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2964

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:616

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:2572

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:2744

C:\Windows\SysWOW64\PING.EXE
ping -n 2 127.0.0.1
4⤵
- Runs ping.exe
PID:2448

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:2120

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:2976

C:\Windows\SysWOW64\Remote Data.exe
"C:\Windows\system32\Remote Data.exe" "c:\windows\system32\259394562.txt",MainThread
2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1596

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2720

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:2092

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Filesize
2.6MB

MD5
25ceb82bd4d282e3649b12158e8fe97e

SHA1
5d56d7d73cf270ab19075c80e757d086d6dfdb48

SHA256
ef3d13354adca34c32c772582fcc164eac5fea98027e08d29ad91a7e252ac3fc

SHA512
c189900bc61c4607958c9709ebe66d423b7ad142b711fd6baff99f4b19a51c52dc5b6102a16931eac3517513516dacbc3b990bc06c78c701ff653f442c1ff7a3

Download Submit
C:\Users\Admin\AppData\Local\Temp\R.exe
Filesize
941KB

MD5
8dc3adf1c490211971c1e2325f1424d2

SHA1
4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5

SHA256
bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c

SHA512
ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d

Download Submit
\Users\Admin\AppData\Local\Temp\N.exe
Filesize
377KB

MD5
4a36a48e58829c22381572b2040b6fe0

SHA1
f09d30e44ff7e3f20a5de307720f3ad148c6143b

SHA256
3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

SHA512
5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

Download Submit
\Windows\SysWOW64\259394562.txt
Filesize
899KB

MD5
7cdfc6568b02aae9503e2c8a65aaa778

SHA1
576ef6edf27f2de386c14a38ecd1a3293cef6f4d

SHA256
9f221a835982f64c1ea315522c8f16ec3bca01bf1fb4a159ef188fe23453b6d9

SHA512
9a525be4c4dd831e738b9ea83cf59399659570bc2e581d2fce132767bae1edde841fb7ff31560eb8689a69f096220d863d043fa9b27eadfe949dfc9eade1edbb

Download Submit
\Windows\SysWOW64\Remote Data.exe
Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/2092-38-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2092-34-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2092-36-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2092-37-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2092-42-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2092-43-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2572-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2572-20-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2572-21-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download