gh0strat | b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9

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 8 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/4552-19-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4552-23-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4552-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2016-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2016-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1092-40-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1092-42-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1092-45-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b85-5.dat	family_gh0strat
behavioral2/memory/4552-19-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4552-23-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4552-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2016-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2016-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1092-40-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1092-42-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1092-45-0x0000000010000000-0x00000000101B6000-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\\240622187.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
1172	R.exe
4552	N.exe
2016	TXPlatfor.exe
1092	TXPlatfor.exe
4336	HD_b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe
1444	Remote Data.exe

Loads dropped DLL 3 IoCs

pid	Process
1172	R.exe
1504	svchost.exe
1444	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\240622187.txt	R.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	R.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4552-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4552-23-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4552-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4552-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2016-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2016-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2016-27-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1092-40-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1092-42-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1092-45-0x0000000010000000-0x00000000101B6000-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	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Remote Data.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe
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

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
4228	cmd.exe
4044	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4044	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3440	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe
3440	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe
4336	HD_b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe
4336	HD_b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
1092	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4552	N.exe
Token: SeLoadDriverPrivilege	1092	TXPlatfor.exe
Token: 33	1092	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	1092	TXPlatfor.exe
Token: 33	1092	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	1092	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3440	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe
3440	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3440 wrote to memory of 1172	3440	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe	85
PID 3440 wrote to memory of 1172	3440	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe	85
PID 3440 wrote to memory of 1172	3440	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe	85
PID 3440 wrote to memory of 4552	3440	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe	88
PID 3440 wrote to memory of 4552	3440	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe	88
PID 3440 wrote to memory of 4552	3440	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe	88
PID 2016 wrote to memory of 1092	2016	TXPlatfor.exe	91
PID 2016 wrote to memory of 1092	2016	TXPlatfor.exe	91
PID 2016 wrote to memory of 1092	2016	TXPlatfor.exe	91
PID 4552 wrote to memory of 4228	4552	N.exe	92
PID 4552 wrote to memory of 4228	4552	N.exe	92
PID 4552 wrote to memory of 4228	4552	N.exe	92
PID 3440 wrote to memory of 4336	3440	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe	93
PID 3440 wrote to memory of 4336	3440	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe	93
PID 3440 wrote to memory of 4336	3440	b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe	93
PID 4228 wrote to memory of 4044	4228	cmd.exe	96
PID 4228 wrote to memory of 4044	4228	cmd.exe	96
PID 4228 wrote to memory of 4044	4228	cmd.exe	96
PID 1504 wrote to memory of 1444	1504	svchost.exe	102
PID 1504 wrote to memory of 1444	1504	svchost.exe	102
PID 1504 wrote to memory of 1444	1504	svchost.exe	102

C:\Users\Admin\AppData\Local\Temp\b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe
"C:\Users\Admin\AppData\Local\Temp\b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3440
- 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:1172
- 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:4552
- - 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:4228
  - - 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:4044
- C:\Users\Admin\AppData\Local\Temp\HD_b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe
  C:\Users\Admin\AppData\Local\Temp\HD_b0fa4b773720380a10f47cb18fce293b1745345e70ff677ddeb4cc0289cfb3e9.exe
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  PID:4336

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:4092

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:1504
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240622187.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:1444

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2016
- 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:1092

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Server Software Component

1

T1505

Terminal Services DLL

1

T1505.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Remote System Discovery

1

T1018

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

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
ec131100371cf4043c46f69d76cddc7c

SHA1
b8c0888b486cfcc0f506cabc9d0df253ba84e666

SHA256
be60eb41b13855640a3fadc10ab80755fbf7726852b119299830fea2a1795510

SHA512
03eae376e25aaab5d32bc1882b18a5e425b872d9ea8427fb64195265b1345590d4aa519b9750e1e2afbb09875183505c86c9190f9e378d194240808f95680bb8

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

Filesize
1.0MB

MD5
5243b4b12c43a4f44b2b99e0e48118c7

SHA1
c58960dc0be5dbff9b76db7ba5f0cb5a7040bbb1

SHA256
8917343e3bd984799048f0430028cf5b7d24a4af381a4a4835c8f1de5d95ef2a

SHA512
0c01b7addc715ac8dc73d018b25e6af54496074c9c3a9dd0c21b5e726a8b5b938a6283d3d89d884f5a6c7ec0b35b78a09baf70390016af9a6cc0fc904b15d23e

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

Filesize
377KB

MD5
4a36a48e58829c22381572b2040b6fe0

SHA1
f09d30e44ff7e3f20a5de307720f3ad148c6143b

SHA256
3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

SHA512
5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

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

Filesize
941KB

MD5
8dc3adf1c490211971c1e2325f1424d2

SHA1
4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5

SHA256
bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c

SHA512
ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d

Download Submit
C:\Windows\SysWOW64\240622187.txt

Filesize
899KB

MD5
5a67f5c3d87da057d4add207299a619f

SHA1
be92e57854237b665348b604d6a768634bc0a892

SHA256
547ea6c3730c0722622767043810a64fc7365833e29e4f1e20ccb70acdb1be8c

SHA512
13e8c6845d3b259491013fb545bd2ff5616c813cdb5c2bce9137933f638ee489e43c9594ba901ffe4d5cb645b16f9fa317bb4d230255e1ae671767f4c7ac5fb7

Download Submit
C:\Windows\SysWOW64\Remote Data.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
memory/1092-45-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1092-42-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1092-40-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2016-29-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2016-27-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2016-28-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4552-17-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4552-20-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4552-23-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4552-19-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads