gh0strat | b4da3bf7b06c157235271eef3a46e877f65efdb10a80189c6035d37f456cf3d2

General

Target

b4da3bf7b06c157235271eef3a46e877f65efdb10a80189c6035d37f456cf3d2.exe
Size

2.5MB
MD5

431aeafea174bc02b92d0f5eb69c3794
SHA1

c034c6921705683620e6c9b692719c35a65e3837
SHA256

b4da3bf7b06c157235271eef3a46e877f65efdb10a80189c6035d37f456cf3d2
SHA512

1ce39beb50058c964134bc2ab2674e24544f5ccf79f338243181a44d2c25d07edfe16764161a60ee6cb1400444a3eccc80c914217d223e61de2259d7b988f346
SSDEEP

24576:rCwsbKgbQ5NANIvGTYwMHXA+wT1kfTw4SIuvB74fgt7ibhRM5QhKehFdMtRj7nHZ:rCwsbCANnKXferL7Vwe/Gg0P+Wh+

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 5 IoCs

Detect PurpleFox Rootkit.

rootkit

Processes:

resource	yara_rule
behavioral1/memory/2708-21-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2708-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2612-38-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2612-41-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2612-43-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 6 IoCs

Processes:

resource	yara_rule
\Windows\SysWOW64\259397214.txt	family_gh0strat
behavioral1/memory/2708-21-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2708-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2612-38-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2612-41-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2612-43-0x0000000010000000-0x00000000101B6000-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

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

Processes:

R.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Remote Data\Parameters\ServiceDll = "C:\\Windows\\system32\\259397214.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

2588 R.exe
2708 N.exe
2712 TXPlatfor.exe
2612 TXPlatfor.exe
2560 Remote Data.exe

pid	process
2588	R.exe
2708	N.exe
2712	TXPlatfor.exe
2612	TXPlatfor.exe
2560	Remote Data.exe

Loads dropped DLL 7 IoCs

Processes:

b4da3bf7b06c157235271eef3a46e877f65efdb10a80189c6035d37f456cf3d2.exeR.exesvchost.exeTXPlatfor.exeRemote Data.exe

pid	process
2428	b4da3bf7b06c157235271eef3a46e877f65efdb10a80189c6035d37f456cf3d2.exe
2588	R.exe
1648	svchost.exe
2428	b4da3bf7b06c157235271eef3a46e877f65efdb10a80189c6035d37f456cf3d2.exe
2712	TXPlatfor.exe
1648	svchost.exe
2560	Remote Data.exe

UPX packed file 6 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2708-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2708-21-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2708-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2612-38-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2612-41-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2612-43-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

Processes:

N.exeR.exesvchost.exe

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\259397214.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

Processes:

PING.EXE

pid process

2668 PING.EXE
Suspicious behavior: LoadsDriver 1 IoCs

Processes:

TXPlatfor.exe

pid process

2612 TXPlatfor.exe

pid	process
2668	PING.EXE

pid	process
2612	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

N.exeTXPlatfor.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	2708	N.exe
Token: SeLoadDriverPrivilege	2612	TXPlatfor.exe
Token: 33	2612	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2612	TXPlatfor.exe
Token: 33	2612	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2612	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

b4da3bf7b06c157235271eef3a46e877f65efdb10a80189c6035d37f456cf3d2.exe

pid	process
2428	b4da3bf7b06c157235271eef3a46e877f65efdb10a80189c6035d37f456cf3d2.exe
2428	b4da3bf7b06c157235271eef3a46e877f65efdb10a80189c6035d37f456cf3d2.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

b4da3bf7b06c157235271eef3a46e877f65efdb10a80189c6035d37f456cf3d2.exeN.exeTXPlatfor.execmd.exesvchost.exe

description	pid	process	target process
PID 2428 wrote to memory of 2588	2428	b4da3bf7b06c157235271eef3a46e877f65efdb10a80189c6035d37f456cf3d2.exe	R.exe
PID 2428 wrote to memory of 2588	2428	b4da3bf7b06c157235271eef3a46e877f65efdb10a80189c6035d37f456cf3d2.exe	R.exe
PID 2428 wrote to memory of 2588	2428	b4da3bf7b06c157235271eef3a46e877f65efdb10a80189c6035d37f456cf3d2.exe	R.exe
PID 2428 wrote to memory of 2588	2428	b4da3bf7b06c157235271eef3a46e877f65efdb10a80189c6035d37f456cf3d2.exe	R.exe
PID 2428 wrote to memory of 2708	2428	b4da3bf7b06c157235271eef3a46e877f65efdb10a80189c6035d37f456cf3d2.exe	N.exe
PID 2428 wrote to memory of 2708	2428	b4da3bf7b06c157235271eef3a46e877f65efdb10a80189c6035d37f456cf3d2.exe	N.exe
PID 2428 wrote to memory of 2708	2428	b4da3bf7b06c157235271eef3a46e877f65efdb10a80189c6035d37f456cf3d2.exe	N.exe
PID 2428 wrote to memory of 2708	2428	b4da3bf7b06c157235271eef3a46e877f65efdb10a80189c6035d37f456cf3d2.exe	N.exe
PID 2428 wrote to memory of 2708	2428	b4da3bf7b06c157235271eef3a46e877f65efdb10a80189c6035d37f456cf3d2.exe	N.exe
PID 2428 wrote to memory of 2708	2428	b4da3bf7b06c157235271eef3a46e877f65efdb10a80189c6035d37f456cf3d2.exe	N.exe
PID 2428 wrote to memory of 2708	2428	b4da3bf7b06c157235271eef3a46e877f65efdb10a80189c6035d37f456cf3d2.exe	N.exe
PID 2708 wrote to memory of 2660	2708	N.exe	cmd.exe
PID 2708 wrote to memory of 2660	2708	N.exe	cmd.exe
PID 2708 wrote to memory of 2660	2708	N.exe	cmd.exe
PID 2708 wrote to memory of 2660	2708	N.exe	cmd.exe
PID 2712 wrote to memory of 2612	2712	TXPlatfor.exe	TXPlatfor.exe
PID 2712 wrote to memory of 2612	2712	TXPlatfor.exe	TXPlatfor.exe
PID 2712 wrote to memory of 2612	2712	TXPlatfor.exe	TXPlatfor.exe
PID 2712 wrote to memory of 2612	2712	TXPlatfor.exe	TXPlatfor.exe
PID 2712 wrote to memory of 2612	2712	TXPlatfor.exe	TXPlatfor.exe
PID 2712 wrote to memory of 2612	2712	TXPlatfor.exe	TXPlatfor.exe
PID 2712 wrote to memory of 2612	2712	TXPlatfor.exe	TXPlatfor.exe
PID 2660 wrote to memory of 2668	2660	cmd.exe	PING.EXE
PID 2660 wrote to memory of 2668	2660	cmd.exe	PING.EXE
PID 2660 wrote to memory of 2668	2660	cmd.exe	PING.EXE
PID 2660 wrote to memory of 2668	2660	cmd.exe	PING.EXE
PID 1648 wrote to memory of 2560	1648	svchost.exe	Remote Data.exe
PID 1648 wrote to memory of 2560	1648	svchost.exe	Remote Data.exe
PID 1648 wrote to memory of 2560	1648	svchost.exe	Remote Data.exe
PID 1648 wrote to memory of 2560	1648	svchost.exe	Remote Data.exe

C:\Users\Admin\AppData\Local\Temp\b4da3bf7b06c157235271eef3a46e877f65efdb10a80189c6035d37f456cf3d2.exe
"C:\Users\Admin\AppData\Local\Temp\b4da3bf7b06c157235271eef3a46e877f65efdb10a80189c6035d37f456cf3d2.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2428
- 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:2588
- 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:2708
- - 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:2660
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:2668

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:1088

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:1648
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\259397214.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2560

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2712
- 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:2612

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Remote System Discovery

1

T1018

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\HD_X.dat

Filesize
2.5MB

MD5
431aeafea174bc02b92d0f5eb69c3794

SHA1
c034c6921705683620e6c9b692719c35a65e3837

SHA256
b4da3bf7b06c157235271eef3a46e877f65efdb10a80189c6035d37f456cf3d2

SHA512
1ce39beb50058c964134bc2ab2674e24544f5ccf79f338243181a44d2c25d07edfe16764161a60ee6cb1400444a3eccc80c914217d223e61de2259d7b988f346

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\259397214.txt

Filesize
899KB

MD5
5a7ed9b5510d9f72d5e94a889433e083

SHA1
8d4d0760ecc83a4d1f050e509dee6457d97191d9

SHA256
b7cff0aba57343af2be999121a5684c87894dc7d3b06fed3fdef76247b0af216

SHA512
8291890c8ab7e2e170e0a9cba27f83d39ec198d0942e6c56b164ccf6a0d5aaf03131315993fb2c026c717a2878952d45480c560fcd659f24ebb0da85994eb052

Download Submit
\Windows\SysWOW64\Remote Data.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/2612-38-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2612-41-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2612-43-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2708-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2708-21-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2708-20-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads