gh0strat | 57c3e2dc4fe355a8c77114c6958cd6082a9c7e53a3dde6a8381da012f52c638f

General

Target

57c3e2dc4fe355a8c77114c6958cd6082a9c7e53a3dde6a8381da012f52c638f.exe
Size

1.7MB
MD5

a504d7c636f327ba7ddc9af8126a1101
SHA1

10b7f8fc84562d234fbe7776e7f12cbc30ea205c
SHA256

57c3e2dc4fe355a8c77114c6958cd6082a9c7e53a3dde6a8381da012f52c638f
SHA512

5525fc74a1db9cc74ebf5b1ad1931ebe348465eec0faccac7338b5ff45bbbf3093939b208dafafabfbb497868d1e67fcf93d99cb63513b4448f92222f4a21565
SSDEEP

24576:CQZoidOTdVZinacCET9Ecl1erdg0MCiVWhFU7cVxdyZWSJx24y:CQZAdVyVT9n/Gg0P+WhohZlg4y

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 10 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/400-6-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/400-10-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/400-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4536-16-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4536-15-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4536-17-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4536-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2636-48-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2636-62-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2636-84-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 11 IoCs

resource	yara_rule
behavioral2/memory/400-6-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/400-10-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/400-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4536-16-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4536-15-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4536-17-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4536-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/files/0x0007000000023479-24.dat	family_gh0strat
behavioral2/memory/2636-48-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2636-62-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2636-84-0x0000000010000000-0x00000000101B6000-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\\240639000.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
400	svchost.exe
4536	TXPlatforn.exe
1388	svchos.exe
2636	TXPlatforn.exe
1200	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

Loads dropped DLL 3 IoCs

pid	Process
1388	svchos.exe
3552	svchost.exe
1200	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/400-5-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/400-6-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/400-10-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/400-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4536-16-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4536-15-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4536-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4536-13-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4536-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2636-48-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2636-62-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2636-84-0x0000000010000000-0x00000000101B6000-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\240639000.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\VideoLAN\VLC\vlc.exe	57c3e2dc4fe355a8c77114c6958cd6082a9c7e53a3dde6a8381da012f52c638f.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	57c3e2dc4fe355a8c77114c6958cd6082a9c7e53a3dde6a8381da012f52c638f.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	57c3e2dc4fe355a8c77114c6958cd6082a9c7e53a3dde6a8381da012f52c638f.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	57c3e2dc4fe355a8c77114c6958cd6082a9c7e53a3dde6a8381da012f52c638f.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	57c3e2dc4fe355a8c77114c6958cd6082a9c7e53a3dde6a8381da012f52c638f.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	57c3e2dc4fe355a8c77114c6958cd6082a9c7e53a3dde6a8381da012f52c638f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchos.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TXPlatforn.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.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
2980	cmd.exe
4284	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4284	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2636	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	400	svchost.exe
Token: SeLoadDriverPrivilege	2636	TXPlatforn.exe
Token: 33	2636	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2636	TXPlatforn.exe
Token: 33	2636	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2636	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1252	57c3e2dc4fe355a8c77114c6958cd6082a9c7e53a3dde6a8381da012f52c638f.exe
1252	57c3e2dc4fe355a8c77114c6958cd6082a9c7e53a3dde6a8381da012f52c638f.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1252 wrote to memory of 400	1252	57c3e2dc4fe355a8c77114c6958cd6082a9c7e53a3dde6a8381da012f52c638f.exe	85
PID 1252 wrote to memory of 400	1252	57c3e2dc4fe355a8c77114c6958cd6082a9c7e53a3dde6a8381da012f52c638f.exe	85
PID 1252 wrote to memory of 400	1252	57c3e2dc4fe355a8c77114c6958cd6082a9c7e53a3dde6a8381da012f52c638f.exe	85
PID 400 wrote to memory of 2980	400	svchost.exe	90
PID 400 wrote to memory of 2980	400	svchost.exe	90
PID 400 wrote to memory of 2980	400	svchost.exe	90
PID 1252 wrote to memory of 1388	1252	57c3e2dc4fe355a8c77114c6958cd6082a9c7e53a3dde6a8381da012f52c638f.exe	92
PID 1252 wrote to memory of 1388	1252	57c3e2dc4fe355a8c77114c6958cd6082a9c7e53a3dde6a8381da012f52c638f.exe	92
PID 1252 wrote to memory of 1388	1252	57c3e2dc4fe355a8c77114c6958cd6082a9c7e53a3dde6a8381da012f52c638f.exe	92
PID 4536 wrote to memory of 2636	4536	TXPlatforn.exe	93
PID 4536 wrote to memory of 2636	4536	TXPlatforn.exe	93
PID 4536 wrote to memory of 2636	4536	TXPlatforn.exe	93
PID 2980 wrote to memory of 4284	2980	cmd.exe	96
PID 2980 wrote to memory of 4284	2980	cmd.exe	96
PID 2980 wrote to memory of 4284	2980	cmd.exe	96
PID 3552 wrote to memory of 1200	3552	svchost.exe	101
PID 3552 wrote to memory of 1200	3552	svchost.exe	101
PID 3552 wrote to memory of 1200	3552	svchost.exe	101

C:\Users\Admin\AppData\Local\Temp\57c3e2dc4fe355a8c77114c6958cd6082a9c7e53a3dde6a8381da012f52c638f.exe
"C:\Users\Admin\AppData\Local\Temp\57c3e2dc4fe355a8c77114c6958cd6082a9c7e53a3dde6a8381da012f52c638f.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1252
- 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:400
- - 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:2980
  - - 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:4284
- 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:1388

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:4536
- 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:2636

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
1⤵
PID:5096

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:3552
- C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
  C:\Windows\system32\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe "c:\windows\system32\240639000.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:1200

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
1.7MB

MD5
a504d7c636f327ba7ddc9af8126a1101

SHA1
10b7f8fc84562d234fbe7776e7f12cbc30ea205c

SHA256
57c3e2dc4fe355a8c77114c6958cd6082a9c7e53a3dde6a8381da012f52c638f

SHA512
5525fc74a1db9cc74ebf5b1ad1931ebe348465eec0faccac7338b5ff45bbbf3093939b208dafafabfbb497868d1e67fcf93d99cb63513b4448f92222f4a21565

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\240639000.txt

Filesize
50KB

MD5
3f81c6bea368d8a8eb1b5151527333f4

SHA1
25d39dd265ceceacada73480a2e21921ba6f70dc

SHA256
11962e31fc8f1771829c9b6e139460b7dbfef07d173f5540c4ac75bf3ce89c59

SHA512
70060f26e91a5d0f66c0c7612a0a74620db69987166911888f2a34f2f3399ffab0c16fa179f4f6ca73a084735ad9722b1a3cd3680deb41d43e2e8621dd1d374d

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

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
memory/400-7-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/400-10-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/400-6-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/400-5-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2636-48-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2636-62-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2636-84-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4536-15-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4536-17-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4536-16-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4536-13-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4536-28-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads