gh0strat | c819ecb3d3c98f28d536def97d4d9bccfce5eeaed863ec7f0b321be28009bd45

General

Target

c819ecb3d3c98f28d536def97d4d9bccfce5eeaed863ec7f0b321be28009bd45.exe
Size

1.3MB
MD5

b4b69b764398332ac9a1eeca626de540
SHA1

ce9c8b73bf3410f453f89fd6a5a084298c1cf820
SHA256

c819ecb3d3c98f28d536def97d4d9bccfce5eeaed863ec7f0b321be28009bd45
SHA512

aaaaf5ebb3368478623539e4454e00d50fa5f9df7450be33abbd2215319ce1c01f18b7481a1eae2c9a3eb008a9da3a370e64ec958d1408ca277385b4ce2b919f
SSDEEP

24576:DQZoidOTdVZinacCET9Ecl1erdg0MCiVWhFU7cVwyB0:DQZAdVyVT9n/Gg0P+Whojg0

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 11 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/764-6-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/764-10-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/764-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2172-15-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2172-16-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2172-17-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1792-32-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2172-21-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1792-33-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1792-37-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1792-38-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 12 IoCs

resource	yara_rule
behavioral2/memory/764-6-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/764-10-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/764-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2172-15-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2172-16-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2172-17-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1792-32-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/files/0x0007000000023479-29.dat	family_gh0strat
behavioral2/memory/2172-21-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1792-33-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1792-37-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1792-38-0x0000000010000000-0x00000000101B6000-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	TXPlatforn.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\Ö÷¶¯·ÀÓù·þÎñÄ£¿é\Parameters\ServiceDll = "C:\\Windows\\system32\\240638984.txt"	svchos.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"	TXPlatforn.exe

Executes dropped EXE 5 IoCs

pid	Process
764	svchost.exe
2172	TXPlatforn.exe
1792	TXPlatforn.exe
3700	svchos.exe
3748	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

Loads dropped DLL 3 IoCs

pid	Process
3700	svchos.exe
4960	svchost.exe
3748	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral2/memory/764-6-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/764-4-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/764-10-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/764-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2172-13-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2172-15-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2172-16-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2172-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1792-32-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2172-21-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1792-33-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1792-37-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1792-38-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\TXPlatforn.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\TXPlatforn.exe	svchost.exe
File created	C:\Windows\SysWOW64\240638984.txt	svchos.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	svchos.exe
File created	C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe	svchost.exe

Drops file in Program Files directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	c819ecb3d3c98f28d536def97d4d9bccfce5eeaed863ec7f0b321be28009bd45.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	c819ecb3d3c98f28d536def97d4d9bccfce5eeaed863ec7f0b321be28009bd45.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	c819ecb3d3c98f28d536def97d4d9bccfce5eeaed863ec7f0b321be28009bd45.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	c819ecb3d3c98f28d536def97d4d9bccfce5eeaed863ec7f0b321be28009bd45.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	c819ecb3d3c98f28d536def97d4d9bccfce5eeaed863ec7f0b321be28009bd45.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c819ecb3d3c98f28d536def97d4d9bccfce5eeaed863ec7f0b321be28009bd45.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TXPlatforn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchos.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.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
1876	cmd.exe
2044	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2044	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
1792	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	764	svchost.exe
Token: SeLoadDriverPrivilege	1792	TXPlatforn.exe
Token: 33	1792	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	1792	TXPlatforn.exe
Token: 33	1792	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	1792	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3644	c819ecb3d3c98f28d536def97d4d9bccfce5eeaed863ec7f0b321be28009bd45.exe
3644	c819ecb3d3c98f28d536def97d4d9bccfce5eeaed863ec7f0b321be28009bd45.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3644 wrote to memory of 764	3644	c819ecb3d3c98f28d536def97d4d9bccfce5eeaed863ec7f0b321be28009bd45.exe	84
PID 3644 wrote to memory of 764	3644	c819ecb3d3c98f28d536def97d4d9bccfce5eeaed863ec7f0b321be28009bd45.exe	84
PID 3644 wrote to memory of 764	3644	c819ecb3d3c98f28d536def97d4d9bccfce5eeaed863ec7f0b321be28009bd45.exe	84
PID 764 wrote to memory of 1876	764	svchost.exe	86
PID 764 wrote to memory of 1876	764	svchost.exe	86
PID 764 wrote to memory of 1876	764	svchost.exe	86
PID 2172 wrote to memory of 1792	2172	TXPlatforn.exe	87
PID 2172 wrote to memory of 1792	2172	TXPlatforn.exe	87
PID 2172 wrote to memory of 1792	2172	TXPlatforn.exe	87
PID 3644 wrote to memory of 3700	3644	c819ecb3d3c98f28d536def97d4d9bccfce5eeaed863ec7f0b321be28009bd45.exe	89
PID 3644 wrote to memory of 3700	3644	c819ecb3d3c98f28d536def97d4d9bccfce5eeaed863ec7f0b321be28009bd45.exe	89
PID 3644 wrote to memory of 3700	3644	c819ecb3d3c98f28d536def97d4d9bccfce5eeaed863ec7f0b321be28009bd45.exe	89
PID 1876 wrote to memory of 2044	1876	cmd.exe	91
PID 1876 wrote to memory of 2044	1876	cmd.exe	91
PID 1876 wrote to memory of 2044	1876	cmd.exe	91
PID 4960 wrote to memory of 3748	4960	svchost.exe	97
PID 4960 wrote to memory of 3748	4960	svchost.exe	97
PID 4960 wrote to memory of 3748	4960	svchost.exe	97

C:\Users\Admin\AppData\Local\Temp\c819ecb3d3c98f28d536def97d4d9bccfce5eeaed863ec7f0b321be28009bd45.exe
"C:\Users\Admin\AppData\Local\Temp\c819ecb3d3c98f28d536def97d4d9bccfce5eeaed863ec7f0b321be28009bd45.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3644
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  C:\Users\Admin\AppData\Local\Temp\\svchost.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:764
- - 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\svchost.exe > nul
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:1876
  - - 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:2044
- C:\Users\Admin\AppData\Local\Temp\svchos.exe
  C:\Users\Admin\AppData\Local\Temp\\svchos.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:3700

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2172
- C:\Windows\SysWOW64\TXPlatforn.exe
  C:\Windows\SysWOW64\TXPlatforn.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:1792

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
1⤵
PID:516

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4960
- C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
  C:\Windows\system32\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe "c:\windows\system32\240638984.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:3748

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 Information Discovery

1

T1082

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
1.3MB

MD5
b4b69b764398332ac9a1eeca626de540

SHA1
ce9c8b73bf3410f453f89fd6a5a084298c1cf820

SHA256
c819ecb3d3c98f28d536def97d4d9bccfce5eeaed863ec7f0b321be28009bd45

SHA512
aaaaf5ebb3368478623539e4454e00d50fa5f9df7450be33abbd2215319ce1c01f18b7481a1eae2c9a3eb008a9da3a370e64ec958d1408ca277385b4ce2b919f

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

Filesize
93KB

MD5
3b377ad877a942ec9f60ea285f7119a2

SHA1
60b23987b20d913982f723ab375eef50fafa6c70

SHA256
62954fdf65e629b39a29f539619d20691332184c6b6be5a826128a8e759bfa84

SHA512
af3a71f867ad9d28772c48b521097f9bf8931eb89fd2974e8de10990241419a39ddc3c0b36dd38aac4fdf14e1f0c5e228692618e93adce958d5b5dab8940e46f

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

Filesize
377KB

MD5
a4329177954d4104005bce3020e5ef59

SHA1
23c29e295e2dbb8454012d619ca3f81e4c16e85a

SHA256
6156d003d54dcf2ee92f21bd6e7a6a7f91730bd2804381260bcabe465abe6ddd

SHA512
81e9d456a4abfc7cd9e0943d4a0ce15523362c3179f3368381d1d7974f80a9f9113b5404b96e67e91684e0ea1895b7d0073e4c48d0bfc4fd0244b1af6acf0208

Download Submit
C:\Windows\SysWOW64\240638984.txt

Filesize
50KB

MD5
ad71c038389fe30d019037d34f8a6c50

SHA1
83bd0d515cd89ab10d5140c5486c7a636586f17e

SHA256
c3599af2822174ce5b8a52f36dabe07f2352ed4934485492fff2d114bf51e198

SHA512
eb83a2eeada429d9b5b11b763b64aac495178709a95635a03a065a8cbe3be616a71214293a525229f00848439557a5cd6eff7580bac512fb123a9f7d091d789d

Download Submit
C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
memory/764-4-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/764-10-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/764-7-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/764-6-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1792-38-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1792-33-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1792-32-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1792-37-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2172-17-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2172-21-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2172-16-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2172-15-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2172-13-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads