gh0strat | 8fbb1c8796614e83771e706012ecfc6a9aafa77bd433f146196ae05a4201df21

General

Target

8fbb1c8796614e83771e706012ecfc6a9aafa77bd433f146196ae05a4201df21.exe
Size

1.4MB
MD5

da55fc982e6a8306294079eb9781da5e
SHA1

9e2d7c65c332ef733e92521ca88fdc66ef739bff
SHA256

8fbb1c8796614e83771e706012ecfc6a9aafa77bd433f146196ae05a4201df21
SHA512

8befaa4a726e32e5ee050f705ab21e574ac40d59aadc3f62c4f49f6d790393f772b95a749e0e8644297bd3367f0ae35e27fbdcf2e43d3fffa2d27dba07aab04e
SSDEEP

24576:MQZoidOTdVZinacCET9Ecl1erdg0MCiVWhFU7cVRfun2s:MQZAdVyVT9n/Gg0P+WhoKmn2s

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 11 IoCs

Detect PurpleFox Rootkit.

rootkit

Processes:

resource	yara_rule
behavioral2/memory/5084-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/5084-10-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/672-16-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/672-17-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1284-24-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/672-25-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1284-39-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1284-46-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1284-55-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/672-15-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/5084-6-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 12 IoCs

Processes:

resource	yara_rule
behavioral2/memory/5084-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/5084-10-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/672-16-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/672-17-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1284-24-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/672-25-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
C:\Windows\SysWOW64\240596703.txt	family_gh0strat
behavioral2/memory/1284-39-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1284-46-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1284-55-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/672-15-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/5084-6-0x0000000010000000-0x00000000101B6000-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

Processes:

TXPlatforn.exe

description ioc process

File created C:\Windows\system32\drivers\QAssist.sys TXPlatforn.exe

description	ioc	process
File created	C:\Windows\system32\drivers\QAssist.sys	TXPlatforn.exe

Sets DLL path for service in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchos.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Ö÷¶¯·ÀÓù·þÎñÄ£¿é\Parameters\ServiceDll = "C:\\Windows\\system32\\240596703.txt"	svchos.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

TXPlatforn.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys"	TXPlatforn.exe

Executes dropped EXE 5 IoCs

Processes:

svchost.exeTXPlatforn.exeTXPlatforn.exesvchos.exeÖ÷¶¯·ÀÓù·þÎñÄ£¿é.exe

pid process

5084 svchost.exe
672 TXPlatforn.exe
1284 TXPlatforn.exe
3120 svchos.exe
3028 Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
Loads dropped DLL 3 IoCs

Processes:

svchos.exesvchost.exeÖ÷¶¯·ÀÓù·þÎñÄ£¿é.exe

pid process

3120 svchos.exe
4464 svchost.exe
3028 Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

pid	process
5084	svchost.exe
672	TXPlatforn.exe
1284	TXPlatforn.exe
3120	svchos.exe
3028	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

pid	process
3120	svchos.exe
4464	svchost.exe
3028	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

UPX packed file 13 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/5084-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/5084-10-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/5084-4-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/672-13-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/672-16-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/672-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1284-24-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/672-25-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1284-39-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1284-46-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1284-55-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/672-15-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/5084-6-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

Processes:

svchost.exesvchos.exesvchost.exe

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\240596703.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

Processes:

8fbb1c8796614e83771e706012ecfc6a9aafa77bd433f146196ae05a4201df21.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	8fbb1c8796614e83771e706012ecfc6a9aafa77bd433f146196ae05a4201df21.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	8fbb1c8796614e83771e706012ecfc6a9aafa77bd433f146196ae05a4201df21.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	8fbb1c8796614e83771e706012ecfc6a9aafa77bd433f146196ae05a4201df21.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	8fbb1c8796614e83771e706012ecfc6a9aafa77bd433f146196ae05a4201df21.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	8fbb1c8796614e83771e706012ecfc6a9aafa77bd433f146196ae05a4201df21.exe

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

System Information Discovery
T1082
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

3468 PING.EXE
Suspicious behavior: LoadsDriver 1 IoCs

Processes:

TXPlatforn.exe

pid process

1284 TXPlatforn.exe

pid	process
3468	PING.EXE

pid	process
1284	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

svchost.exeTXPlatforn.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	5084	svchost.exe
Token: SeLoadDriverPrivilege	1284	TXPlatforn.exe
Token: 33	1284	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	1284	TXPlatforn.exe
Token: 33	1284	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	1284	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

8fbb1c8796614e83771e706012ecfc6a9aafa77bd433f146196ae05a4201df21.exe

pid	process
1848	8fbb1c8796614e83771e706012ecfc6a9aafa77bd433f146196ae05a4201df21.exe
1848	8fbb1c8796614e83771e706012ecfc6a9aafa77bd433f146196ae05a4201df21.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

8fbb1c8796614e83771e706012ecfc6a9aafa77bd433f146196ae05a4201df21.exeTXPlatforn.exesvchost.execmd.exesvchost.exe

description	pid	process	target process
PID 1848 wrote to memory of 5084	1848	8fbb1c8796614e83771e706012ecfc6a9aafa77bd433f146196ae05a4201df21.exe	svchost.exe
PID 1848 wrote to memory of 5084	1848	8fbb1c8796614e83771e706012ecfc6a9aafa77bd433f146196ae05a4201df21.exe	svchost.exe
PID 1848 wrote to memory of 5084	1848	8fbb1c8796614e83771e706012ecfc6a9aafa77bd433f146196ae05a4201df21.exe	svchost.exe
PID 672 wrote to memory of 1284	672	TXPlatforn.exe	TXPlatforn.exe
PID 672 wrote to memory of 1284	672	TXPlatforn.exe	TXPlatforn.exe
PID 672 wrote to memory of 1284	672	TXPlatforn.exe	TXPlatforn.exe
PID 5084 wrote to memory of 1856	5084	svchost.exe	cmd.exe
PID 5084 wrote to memory of 1856	5084	svchost.exe	cmd.exe
PID 5084 wrote to memory of 1856	5084	svchost.exe	cmd.exe
PID 1848 wrote to memory of 3120	1848	8fbb1c8796614e83771e706012ecfc6a9aafa77bd433f146196ae05a4201df21.exe	svchos.exe
PID 1848 wrote to memory of 3120	1848	8fbb1c8796614e83771e706012ecfc6a9aafa77bd433f146196ae05a4201df21.exe	svchos.exe
PID 1848 wrote to memory of 3120	1848	8fbb1c8796614e83771e706012ecfc6a9aafa77bd433f146196ae05a4201df21.exe	svchos.exe
PID 1856 wrote to memory of 3468	1856	cmd.exe	PING.EXE
PID 1856 wrote to memory of 3468	1856	cmd.exe	PING.EXE
PID 1856 wrote to memory of 3468	1856	cmd.exe	PING.EXE
PID 4464 wrote to memory of 3028	4464	svchost.exe	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
PID 4464 wrote to memory of 3028	4464	svchost.exe	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
PID 4464 wrote to memory of 3028	4464	svchost.exe	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

C:\Users\Admin\AppData\Local\Temp\8fbb1c8796614e83771e706012ecfc6a9aafa77bd433f146196ae05a4201df21.exe
"C:\Users\Admin\AppData\Local\Temp\8fbb1c8796614e83771e706012ecfc6a9aafa77bd433f146196ae05a4201df21.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1848

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
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5084

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⤵
- Suspicious use of WriteProcessMemory
PID:1856

C:\Windows\SysWOW64\PING.EXE
ping -n 2 127.0.0.1
4⤵
- Runs ping.exe
PID:3468

C:\Users\Admin\AppData\Local\Temp\svchos.exe
C:\Users\Admin\AppData\Local\Temp\\svchos.exe
2⤵
- Sets DLL path for service in the registry
- Executes dropped EXE
- Loads dropped DLL
- Drops file in System32 directory
PID:3120

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:672

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:1284

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
1⤵
PID:2700

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4464

C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
C:\Windows\system32\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe "c:\windows\system32\240596703.txt",MainThread
2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:3028

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Remote System Discovery

1

T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Filesize
1.4MB

MD5
da55fc982e6a8306294079eb9781da5e

SHA1
9e2d7c65c332ef733e92521ca88fdc66ef739bff

SHA256
8fbb1c8796614e83771e706012ecfc6a9aafa77bd433f146196ae05a4201df21

SHA512
8befaa4a726e32e5ee050f705ab21e574ac40d59aadc3f62c4f49f6d790393f772b95a749e0e8644297bd3367f0ae35e27fbdcf2e43d3fffa2d27dba07aab04e

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\240596703.txt
Filesize
50KB

MD5
38ba83592b1d4fc1a5670cd9e925be8c

SHA1
6e9347ebb50ed44c9e7570f41e7138217c58e668

SHA256
bd938279668e8c6e8bf9b5738944559f58517d42c5f8cedd58fa8930a2a02961

SHA512
39c6e846061ad53ef19d1512e7731576932241df186296f735d74f45b069917cd5ef59138f5feaa0f5434053df6b0e2c846656db39c94eb0cfe35a7b62337df9

Download Submit
C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
memory/672-13-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/672-17-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/672-25-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/672-16-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/672-15-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1284-24-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1284-39-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1284-46-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1284-55-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/5084-4-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/5084-10-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/5084-6-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/5084-7-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads