gh0strat | a2d3d13af398d7f9709a93dcd83e213de8ef9855ca0f71d58bfca6734c01b3d7

General

Target

a2d3d13af398d7f9709a93dcd83e213de8ef9855ca0f71d58bfca6734c01b3d7.exe
Size

2.4MB
MD5

6ddf47348a5787fbcaa987120f8a5907
SHA1

2f12be5a75b2c6eb407aa41d5cc6efe2f4c621d6
SHA256

a2d3d13af398d7f9709a93dcd83e213de8ef9855ca0f71d58bfca6734c01b3d7
SHA512

7e1b51688dfb6f4058d241f54254d0558d051b029f72d7f36efe4245174d172d4f80c42e6091035b1e86fd406f0e05255d44997cb72ecdb96c994c4251ca22c9
SSDEEP

24576:DCwsbKgbQ5NANIvGTYwMHXA+wT1kfTw4SIuvB74fgt7ibhRM5QhKehFdMtRj7nHV:DCwsbCANnKXferL7Vwe/Gg0P+WhQkM

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/4168-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4168-23-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4168-19-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4600-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4600-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4884-36-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4884-40-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4884-41-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral2/files/0x000800000002343a-5.dat	family_gh0strat
behavioral2/memory/4168-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4168-23-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4168-19-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4600-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4600-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4884-36-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4884-40-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4884-41-0x0000000010000000-0x00000000101B6000-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\\240612750.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 5 IoCs

pid	Process
1768	R.exe
4168	N.exe
4600	TXPlatfor.exe
4884	TXPlatfor.exe
1756	Remote Data.exe

Loads dropped DLL 3 IoCs

pid	Process
1768	R.exe
3524	svchost.exe
1756	Remote Data.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4168-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4168-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4168-23-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4168-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4600-26-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4600-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4600-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4884-36-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4884-40-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4884-41-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

description	ioc	Process
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\240612750.txt	R.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	R.exe
File created	C:\Windows\SysWOW64\Remote Data.exe	svchost.exe

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	N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TXPlatfor.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	a2d3d13af398d7f9709a93dcd83e213de8ef9855ca0f71d58bfca6734c01b3d7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	R.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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
2524	cmd.exe
760	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
760	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
4884	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4168	N.exe
Token: SeLoadDriverPrivilege	4884	TXPlatfor.exe
Token: 33	4884	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	4884	TXPlatfor.exe
Token: 33	4884	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	4884	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1140	a2d3d13af398d7f9709a93dcd83e213de8ef9855ca0f71d58bfca6734c01b3d7.exe
1140	a2d3d13af398d7f9709a93dcd83e213de8ef9855ca0f71d58bfca6734c01b3d7.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1140 wrote to memory of 1768	1140	a2d3d13af398d7f9709a93dcd83e213de8ef9855ca0f71d58bfca6734c01b3d7.exe	84
PID 1140 wrote to memory of 1768	1140	a2d3d13af398d7f9709a93dcd83e213de8ef9855ca0f71d58bfca6734c01b3d7.exe	84
PID 1140 wrote to memory of 1768	1140	a2d3d13af398d7f9709a93dcd83e213de8ef9855ca0f71d58bfca6734c01b3d7.exe	84
PID 1140 wrote to memory of 4168	1140	a2d3d13af398d7f9709a93dcd83e213de8ef9855ca0f71d58bfca6734c01b3d7.exe	87
PID 1140 wrote to memory of 4168	1140	a2d3d13af398d7f9709a93dcd83e213de8ef9855ca0f71d58bfca6734c01b3d7.exe	87
PID 1140 wrote to memory of 4168	1140	a2d3d13af398d7f9709a93dcd83e213de8ef9855ca0f71d58bfca6734c01b3d7.exe	87
PID 4600 wrote to memory of 4884	4600	TXPlatfor.exe	93
PID 4600 wrote to memory of 4884	4600	TXPlatfor.exe	93
PID 4600 wrote to memory of 4884	4600	TXPlatfor.exe	93
PID 4168 wrote to memory of 2524	4168	N.exe	92
PID 4168 wrote to memory of 2524	4168	N.exe	92
PID 4168 wrote to memory of 2524	4168	N.exe	92
PID 2524 wrote to memory of 760	2524	cmd.exe	95
PID 2524 wrote to memory of 760	2524	cmd.exe	95
PID 2524 wrote to memory of 760	2524	cmd.exe	95
PID 3524 wrote to memory of 1756	3524	svchost.exe	101
PID 3524 wrote to memory of 1756	3524	svchost.exe	101
PID 3524 wrote to memory of 1756	3524	svchost.exe	101

C:\Users\Admin\AppData\Local\Temp\a2d3d13af398d7f9709a93dcd83e213de8ef9855ca0f71d58bfca6734c01b3d7.exe
"C:\Users\Admin\AppData\Local\Temp\a2d3d13af398d7f9709a93dcd83e213de8ef9855ca0f71d58bfca6734c01b3d7.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1140
- 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:1768
- 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:4168
- - 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:2524
  - - 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:760

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:1084

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:3524
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240612750.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:1756

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:4600
- 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:4884

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

Replay Monitor

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Downloads

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

Filesize
2.4MB

MD5
6ddf47348a5787fbcaa987120f8a5907

SHA1
2f12be5a75b2c6eb407aa41d5cc6efe2f4c621d6

SHA256
a2d3d13af398d7f9709a93dcd83e213de8ef9855ca0f71d58bfca6734c01b3d7

SHA512
7e1b51688dfb6f4058d241f54254d0558d051b029f72d7f36efe4245174d172d4f80c42e6091035b1e86fd406f0e05255d44997cb72ecdb96c994c4251ca22c9

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\240612750.txt

Filesize
899KB

MD5
c8d1b8023c33027bee3f63b9d8dd262e

SHA1
ed49dee5c54b55edd37645c4c8201da903c3f72a

SHA256
5be0f2e918acfaa5e7022ca690ff4160b7c2c5b443a1cf03041cb4817427ddd3

SHA512
e4c0acb6da5b5a97d3219dd18b878f4386087a28f8a6eed9aed24b8b0f9a63c1956382b74eb4b660357af2657c9a7781c1b5e2a796a0d1ebe8240a019fc685f4

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

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
memory/4168-19-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4168-23-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4168-20-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4168-17-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4600-26-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4600-28-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4600-29-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4884-36-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4884-40-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4884-41-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads