gh0strat | b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9

Analysis

max time kernel
150s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
18-10-2024 03:16

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General

Target

b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe
Size

3.6MB
MD5

966bf2dab1aac848aa1ddf1e267add08
SHA1

bca3bf6dc95354dc7f991c3e2e108e00652d73e2
SHA256

b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9
SHA512

be0f7e92dc28407963995efdcb6492a71eaae8cda08e65842fa499cfdee1de6bb6c3fb34e2ec4bc437f0b51e921219735adddb0625c6953f9d25ffd027d68a36
SSDEEP

49152:bCwsbCANnKXferL7Vwe/Gg0P+Wh3Yfx3A2YiI+3xo:+ws2ANnKXOaeOgmhop3A2YlCo

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/832-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/832-21-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1892-43-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1892-46-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1892-51-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 6 IoCs

resource	yara_rule
behavioral1/files/0x0008000000016ce9-6.dat	family_gh0strat
behavioral1/memory/832-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/832-21-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1892-43-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1892-46-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1892-51-0x0000000010000000-0x00000000101B6000-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

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\\259506337.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
1552	R.exe
832	N.exe
2936	TXPlatfor.exe
1892	TXPlatfor.exe
2800	HD_b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe
968	Remote Data.exe

Loads dropped DLL 8 IoCs

pid	Process
2256	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe
1552	R.exe
2472	svchost.exe
2256	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe
2936	TXPlatfor.exe
2256	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe
2472	svchost.exe
968	Remote Data.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\259506337.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 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/832-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/832-21-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/832-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1892-43-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1892-46-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1892-51-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 9 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	HD_b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	R.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
2956	cmd.exe
2836	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2836	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2256	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe
2800	HD_b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
1892	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	832	N.exe
Token: SeLoadDriverPrivilege	1892	TXPlatfor.exe
Token: 33	1892	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	1892	TXPlatfor.exe
Token: 33	1892	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	1892	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2256	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe
2256	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 2256 wrote to memory of 1552	2256	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe	30
PID 2256 wrote to memory of 1552	2256	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe	30
PID 2256 wrote to memory of 1552	2256	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe	30
PID 2256 wrote to memory of 1552	2256	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe	30
PID 2256 wrote to memory of 832	2256	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe	33
PID 2256 wrote to memory of 832	2256	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe	33
PID 2256 wrote to memory of 832	2256	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe	33
PID 2256 wrote to memory of 832	2256	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe	33
PID 2256 wrote to memory of 832	2256	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe	33
PID 2256 wrote to memory of 832	2256	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe	33
PID 2256 wrote to memory of 832	2256	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe	33
PID 2936 wrote to memory of 1892	2936	TXPlatfor.exe	36
PID 2936 wrote to memory of 1892	2936	TXPlatfor.exe	36
PID 2936 wrote to memory of 1892	2936	TXPlatfor.exe	36
PID 2936 wrote to memory of 1892	2936	TXPlatfor.exe	36
PID 2936 wrote to memory of 1892	2936	TXPlatfor.exe	36
PID 2936 wrote to memory of 1892	2936	TXPlatfor.exe	36
PID 2936 wrote to memory of 1892	2936	TXPlatfor.exe	36
PID 832 wrote to memory of 2956	832	N.exe	35
PID 832 wrote to memory of 2956	832	N.exe	35
PID 832 wrote to memory of 2956	832	N.exe	35
PID 832 wrote to memory of 2956	832	N.exe	35
PID 2256 wrote to memory of 2800	2256	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe	38
PID 2256 wrote to memory of 2800	2256	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe	38
PID 2256 wrote to memory of 2800	2256	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe	38
PID 2256 wrote to memory of 2800	2256	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe	38
PID 2956 wrote to memory of 2836	2956	cmd.exe	39
PID 2956 wrote to memory of 2836	2956	cmd.exe	39
PID 2956 wrote to memory of 2836	2956	cmd.exe	39
PID 2956 wrote to memory of 2836	2956	cmd.exe	39
PID 2472 wrote to memory of 968	2472	svchost.exe	41
PID 2472 wrote to memory of 968	2472	svchost.exe	41
PID 2472 wrote to memory of 968	2472	svchost.exe	41
PID 2472 wrote to memory of 968	2472	svchost.exe	41

C:\Users\Admin\AppData\Local\Temp\b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe
"C:\Users\Admin\AppData\Local\Temp\b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2256
- 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:1552
- 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:832
- - 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:2956
  - - 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:2836
- C:\Users\Admin\AppData\Local\Temp\HD_b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe
  C:\Users\Admin\AppData\Local\Temp\HD_b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2800

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:2724

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:2472
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\259506337.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:968

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:2936
- 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:1892

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\N.exe

Filesize
377KB

MD5
4a36a48e58829c22381572b2040b6fe0

SHA1
f09d30e44ff7e3f20a5de307720f3ad148c6143b

SHA256
3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

SHA512
5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

Download Submit
C:\Users\Admin\Desktop\ApproveInstall.exe

Filesize
2.8MB

MD5
4ccf210fbad6089d631afd37cb4a1187

SHA1
d402a5ebddffd228d75f2341b09215232d35caa8

SHA256
7b4356a9ac571274125c3ab037fcfc052939ce1e26d738a1311de6ae3ebc828b

SHA512
c1b54151784c88696f2f599a4cf76263c68ff47884da2855fdc93f63513329d18e852a916955c9b21e2751e43a2795acc15593fc9a11eac15b9dd73dea79513e

Download Submit
\Users\Admin\AppData\Local\Temp\HD_b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe

Filesize
1.0MB

MD5
5243b4b12c43a4f44b2b99e0e48118c7

SHA1
c58960dc0be5dbff9b76db7ba5f0cb5a7040bbb1

SHA256
8917343e3bd984799048f0430028cf5b7d24a4af381a4a4835c8f1de5d95ef2a

SHA512
0c01b7addc715ac8dc73d018b25e6af54496074c9c3a9dd0c21b5e726a8b5b938a6283d3d89d884f5a6c7ec0b35b78a09baf70390016af9a6cc0fc904b15d23e

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

Filesize
941KB

MD5
8dc3adf1c490211971c1e2325f1424d2

SHA1
4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5

SHA256
bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c

SHA512
ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d

Download Submit
\Windows\SysWOW64\259506337.txt

Filesize
899KB

MD5
5a67f5c3d87da057d4add207299a619f

SHA1
be92e57854237b665348b604d6a768634bc0a892

SHA256
547ea6c3730c0722622767043810a64fc7365833e29e4f1e20ccb70acdb1be8c

SHA512
13e8c6845d3b259491013fb545bd2ff5616c813cdb5c2bce9137933f638ee489e43c9594ba901ffe4d5cb645b16f9fa317bb4d230255e1ae671767f4c7ac5fb7

Download Submit
\Windows\SysWOW64\Remote Data.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/832-20-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/832-21-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/832-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1892-43-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1892-46-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1892-51-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download