gh0strat | b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8

General

Target

b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe
Size

1.9MB
MD5

c5ab418d180e3caa84b3510ca8eefedf
SHA1

eba00bff3292158e07c4df293361fd8fa3255846
SHA256

b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8
SHA512

02436b226bda19801f3873f7bd4d11e9744b405c95befb73f2ea2481f94822ed9d93d89c72f73fc0956c476d3667ac0f7c0995f1a97a4463fad59961ed6162ff
SSDEEP

49152:FQZAdVyVT9n/Gg0P+WhoWpemZPItx2apeapelI:eGdVyVT9nOgmhYntUvlI

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 9 IoCs

Detect PurpleFox Rootkit.

rootkit

Processes:

resource	yara_rule
behavioral1/memory/2928-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2928-9-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2928-22-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2432-34-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2432-36-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2572-26-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2432-91-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2432-94-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2432-96-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 11 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2928-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2928-9-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2572-17-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2928-22-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2432-34-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2432-36-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
\Windows\SysWOW64\259395826.txt	family_gh0strat
behavioral1/memory/2572-26-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2432-91-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2432-94-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2432-96-0x0000000010000000-0x00000000101B6000-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\\259395826.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 6 IoCs

Processes:

svchost.exeTXPlatforn.exeTXPlatforn.exesvchos.exeHD_b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exeÖ÷¶¯·ÀÓù·þÎñÄ£¿é.exe

pid	process
2928	svchost.exe
2572	TXPlatforn.exe
2432	TXPlatforn.exe
2540	svchos.exe
2136	HD_b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe
2604	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

Loads dropped DLL 8 IoCs

Processes:

b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exeTXPlatforn.exesvchos.exesvchost.exeÖ÷¶¯·ÀÓù·þÎñÄ£¿é.exe

pid	process
2268	b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe
2572	TXPlatforn.exe
2268	b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe
2540	svchos.exe
2324	svchost.exe
2268	b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe
2324	svchost.exe
2604	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

UPX packed file 12 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2928-5-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2928-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2928-9-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2572-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2928-22-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2432-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2432-34-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2432-36-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2572-26-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2432-91-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2432-94-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2432-96-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

Processes:

svchos.exesvchost.exesvchost.exe

description	ioc	process
File created	C:\Windows\SysWOW64\259395826.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
File created	C:\Windows\SysWOW64\TXPlatforn.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\TXPlatforn.exe	svchost.exe

Drops file in Program Files directory 4 IoCs

Processes:

b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe	b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.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

2468 PING.EXE
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe

pid process

2268 b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe
Suspicious behavior: LoadsDriver 1 IoCs

Processes:

TXPlatforn.exe

pid process

2432 TXPlatforn.exe

pid	process
2468	PING.EXE

pid	process
2432	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

svchost.exeTXPlatforn.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	2928	svchost.exe
Token: SeLoadDriverPrivilege	2432	TXPlatforn.exe
Token: 33	2432	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2432	TXPlatforn.exe
Token: 33	2432	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2432	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe

pid	process
2268	b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe
2268	b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exesvchost.exeTXPlatforn.execmd.exesvchost.exe

description	pid	process	target process
PID 2268 wrote to memory of 2928	2268	b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe	svchost.exe
PID 2268 wrote to memory of 2928	2268	b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe	svchost.exe
PID 2268 wrote to memory of 2928	2268	b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe	svchost.exe
PID 2268 wrote to memory of 2928	2268	b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe	svchost.exe
PID 2268 wrote to memory of 2928	2268	b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe	svchost.exe
PID 2268 wrote to memory of 2928	2268	b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe	svchost.exe
PID 2268 wrote to memory of 2928	2268	b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe	svchost.exe
PID 2928 wrote to memory of 2616	2928	svchost.exe	cmd.exe
PID 2928 wrote to memory of 2616	2928	svchost.exe	cmd.exe
PID 2928 wrote to memory of 2616	2928	svchost.exe	cmd.exe
PID 2928 wrote to memory of 2616	2928	svchost.exe	cmd.exe
PID 2572 wrote to memory of 2432	2572	TXPlatforn.exe	TXPlatforn.exe
PID 2572 wrote to memory of 2432	2572	TXPlatforn.exe	TXPlatforn.exe
PID 2572 wrote to memory of 2432	2572	TXPlatforn.exe	TXPlatforn.exe
PID 2572 wrote to memory of 2432	2572	TXPlatforn.exe	TXPlatforn.exe
PID 2572 wrote to memory of 2432	2572	TXPlatforn.exe	TXPlatforn.exe
PID 2572 wrote to memory of 2432	2572	TXPlatforn.exe	TXPlatforn.exe
PID 2572 wrote to memory of 2432	2572	TXPlatforn.exe	TXPlatforn.exe
PID 2268 wrote to memory of 2540	2268	b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe	svchos.exe
PID 2268 wrote to memory of 2540	2268	b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe	svchos.exe
PID 2268 wrote to memory of 2540	2268	b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe	svchos.exe
PID 2268 wrote to memory of 2540	2268	b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe	svchos.exe
PID 2616 wrote to memory of 2468	2616	cmd.exe	PING.EXE
PID 2616 wrote to memory of 2468	2616	cmd.exe	PING.EXE
PID 2616 wrote to memory of 2468	2616	cmd.exe	PING.EXE
PID 2616 wrote to memory of 2468	2616	cmd.exe	PING.EXE
PID 2324 wrote to memory of 2604	2324	svchost.exe	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
PID 2324 wrote to memory of 2604	2324	svchost.exe	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
PID 2324 wrote to memory of 2604	2324	svchost.exe	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
PID 2324 wrote to memory of 2604	2324	svchost.exe	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

C:\Users\Admin\AppData\Local\Temp\b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe
"C:\Users\Admin\AppData\Local\Temp\b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2268

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:2928

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:2616

C:\Windows\SysWOW64\PING.EXE
ping -n 2 127.0.0.1
4⤵
- Runs ping.exe
PID:2468

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:2540

C:\Users\Admin\AppData\Local\Temp\HD_b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe
C:\Users\Admin\AppData\Local\Temp\HD_b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe
2⤵
- Executes dropped EXE
PID:2136

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2572

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:2432

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
1⤵
PID:2724

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:2324

C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
C:\Windows\system32\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe "c:\windows\system32\259395826.txt",MainThread
2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:2604

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Filesize
1.2MB

MD5
9b85a576703b93b5e1c237479deb9923

SHA1
327618dcc332fa7baf14a94f0e13ac1dfce40529

SHA256
0a5747236db27e65ab3c7ff7c844b9100185d1daaa0c9b6c53dd8f04bd57cb14

SHA512
461dcff838e6e4cb19ec75e7bdb4d52c4a280bcc6acc6f9602b34dcf64d36636bb49bb5717ad7b26c9c7097839dc25fdef2732ec8929dae09aab7bedade368e6

Download Submit
C:\Users\Admin\AppData\Local\Temp\HD_b81d0c748dd25f1a129f311151d04133679172e072e2eda48d1b9bbb4a9d13f8.exe
Filesize
645KB

MD5
00eae789b0aab1b0fbd23b830fbf1064

SHA1
e4e5fd089f6ae17c83f073cf91edc9db8189980d

SHA256
7addb2269266ac471a690802cab54539b40c2ae5b31e2120fdcf8dfb0ed15dc7

SHA512
23a0e06b39f8b5a932ae5b8f60704ba265332b341ac8bab5b74b2f31f04ce8c7fe6f77278d70c7685cfa894ab0e25a70d89990f5f643b54c07337f90fa5943fb

Download Submit
C:\Users\Admin\AppData\Local\Temp\svchos.exe
Filesize
93KB

MD5
3b377ad877a942ec9f60ea285f7119a2

SHA1
60b23987b20d913982f723ab375eef50fafa6c70

SHA256
62954fdf65e629b39a29f539619d20691332184c6b6be5a826128a8e759bfa84

SHA512
af3a71f867ad9d28772c48b521097f9bf8931eb89fd2974e8de10990241419a39ddc3c0b36dd38aac4fdf14e1f0c5e228692618e93adce958d5b5dab8940e46f

Download Submit
\Users\Admin\AppData\Local\Temp\svchost.exe
Filesize
377KB

MD5
a4329177954d4104005bce3020e5ef59

SHA1
23c29e295e2dbb8454012d619ca3f81e4c16e85a

SHA256
6156d003d54dcf2ee92f21bd6e7a6a7f91730bd2804381260bcabe465abe6ddd

SHA512
81e9d456a4abfc7cd9e0943d4a0ce15523362c3179f3368381d1d7974f80a9f9113b5404b96e67e91684e0ea1895b7d0073e4c48d0bfc4fd0244b1af6acf0208

Download Submit
\Windows\SysWOW64\259395826.txt
Filesize
50KB

MD5
20b08f664ff760ab0bc06164c073259b

SHA1
5459015f3ed9de678cb99e70278b847cb3fc181e

SHA256
ac5866bd4894512e4bdaa523a0f4c1d8c2ed09f82384fc6f6a83b634f60a8f69

SHA512
a18d1f7ec8e817458c71584938fe977e1e73b462524a0bbf6a8a24c3b9fc682e9c15dea32197905680d865e90fcf9176a8b168457d850561ca29ea5be5e73b6b

Download Submit
\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/2432-34-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2432-29-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2432-36-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2432-91-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2432-94-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2432-96-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2572-17-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2572-26-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2928-22-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2928-9-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2928-7-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

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memory/2928-5-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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