gh0strat | b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a

General

Target

b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe
Size

5.7MB
MD5

4e089993e39dc97e1f6bef376e1700c4
SHA1

7ce211e3c460e7eedde19451c1bec148b77c7415
SHA256

b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a
SHA512

cbdb3d8be4244a299e0ecf362071b5aca3ca8f038d1f689dcbd3b000c81df95d00f99b50e9c1ca26d39082e448846d8918f16a328d7b175980350a71940b18b6
SSDEEP

98304:bws2ANnKXOaeOgmh0nlEXGch/QT8N7JRL62Jq0XfEteBS:9KXbeO7inlE+6JVxq0vEteBS

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 8 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/4496-19-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4496-23-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4496-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1576-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1576-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1532-40-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1532-44-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1532-46-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral2/files/0x00070000000235f8-5.dat	family_gh0strat
behavioral2/memory/4496-19-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4496-23-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4496-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1576-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1576-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1532-40-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1532-44-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1532-46-0x0000000010000000-0x00000000101B6000-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

Sets DLL path for service in the 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\Remote Data\Parameters\ServiceDll = "C:\\Windows\\system32\\240649390.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 6 IoCs

pid	Process
2300	R.exe
4496	N.exe
1576	TXPlatfor.exe
1532	TXPlatfor.exe
388	HD_b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe
4212	Remote Data.exe

Loads dropped DLL 3 IoCs

pid	Process
2300	R.exe
1200	svchost.exe
4212	Remote Data.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4496-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4496-23-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4496-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4496-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1576-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1576-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1576-26-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1532-40-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1532-44-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1532-46-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\240649390.txt	R.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	R.exe
File created	C:\Windows\SysWOW64\Remote Data.exe	svchost.exe
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

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4568	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4236	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe
4236	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
1532	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4496	N.exe
Token: SeLoadDriverPrivilege	1532	TXPlatfor.exe
Token: SeDebugPrivilege	388	HD_b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe
Token: 33	1532	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	1532	TXPlatfor.exe
Token: 33	1532	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	1532	TXPlatfor.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
388	HD_b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4236	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe
4236	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4236 wrote to memory of 2300	4236	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe	90
PID 4236 wrote to memory of 2300	4236	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe	90
PID 4236 wrote to memory of 2300	4236	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe	90
PID 4236 wrote to memory of 4496	4236	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe	93
PID 4236 wrote to memory of 4496	4236	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe	93
PID 4236 wrote to memory of 4496	4236	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe	93
PID 4496 wrote to memory of 3104	4496	N.exe	95
PID 4496 wrote to memory of 3104	4496	N.exe	95
PID 4496 wrote to memory of 3104	4496	N.exe	95
PID 1576 wrote to memory of 1532	1576	TXPlatfor.exe	96
PID 1576 wrote to memory of 1532	1576	TXPlatfor.exe	96
PID 1576 wrote to memory of 1532	1576	TXPlatfor.exe	96
PID 4236 wrote to memory of 388	4236	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe	97
PID 4236 wrote to memory of 388	4236	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe	97
PID 3104 wrote to memory of 4568	3104	cmd.exe	99
PID 3104 wrote to memory of 4568	3104	cmd.exe	99
PID 3104 wrote to memory of 4568	3104	cmd.exe	99
PID 1200 wrote to memory of 4212	1200	svchost.exe	105
PID 1200 wrote to memory of 4212	1200	svchost.exe	105
PID 1200 wrote to memory of 4212	1200	svchost.exe	105

C:\Users\Admin\AppData\Local\Temp\b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe
"C:\Users\Admin\AppData\Local\Temp\b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4236
- C:\Users\Admin\AppData\Local\Temp\R.exe
  C:\Users\Admin\AppData\Local\Temp\\R.exe
  2⤵
  - Sets DLL path for service in the registry
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  PID:2300
- 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
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4496
- - 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⤵
    - Suspicious use of WriteProcessMemory
    PID:3104
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:4568
- C:\Users\Admin\AppData\Local\Temp\HD_b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe
  C:\Users\Admin\AppData\Local\Temp\HD_b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  PID:388

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:1708

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1200
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240649390.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:4212

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1576
- 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:1532

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3756,i,9746875443948590908,1444894342962555245,262144 --variations-seed-version --mojo-platform-channel-handle=4084 /prefetch:8
1⤵
PID:3268

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Remote System Discovery

1

T1018

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
2.6MB

MD5
051079226c042004b2e199bfdaf07a8c

SHA1
71c80641b635be62f53b2ac1cabeb91a7bb11190

SHA256
f37587f2c20e45c8242fcb8d24b6ee5e1664f4c15a9d5866a9e210527e6a93ad

SHA512
0f6e498bbbe61d84df1ff3ecdcadd2020359cd169c3e8deb4f3da4f18b4c4da2ea19b7926889ab4acbf27cb4bb13245d346a9523161a62e89f82db1d50133b3e

Download Submit
C:\Users\Admin\AppData\Local\Temp\HD_b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe

Filesize
3.0MB

MD5
33909b43dd1162ffe0e6403e63371107

SHA1
742785dcd0212fa1568d033c2aef732e6faead16

SHA256
c41b1bb28d482c2664049265dbe1bf6d610073ee8cdfb413d415ca2bfb614afc

SHA512
d7ceb9c2b25b9914b4ace91ce08d8d559822fd957498dc34379792e3b5283d4015d5e8b3bbf67202645d0bb119840fb43942dac2b6828fd557a24cd2731b8bf0

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\240649390.txt

Filesize
899KB

MD5
9723f116e910fbe3cf8b11ca695dc6d6

SHA1
3b0e548e0af931fae1b0d2a7d8459abe0ebc462c

SHA256
5a9804f829ee9a895765c1c2dc09838b09be935ef5f24c8a92624932e5143832

SHA512
3d8be2f019c6ab3b044cee6dd29edaf90dc78428bbd4d2de56428846277470518a8d4ec5a375734bf468159b75706bd2f7b39ffce7f310750fef64946f3025f9

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

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
memory/388-47-0x000001812D250000-0x000001812D518000-memory.dmp

Filesize
2.8MB

Download
memory/388-45-0x0000018111AC0000-0x0000018111DCA000-memory.dmp

Filesize
3.0MB

Download
memory/388-60-0x0000018133610000-0x00000181336B8000-memory.dmp

Filesize
672KB

Download
memory/388-52-0x00000181324F0000-0x00000181324FE000-memory.dmp

Filesize
56KB

Download
memory/388-51-0x0000018132520000-0x0000018132558000-memory.dmp

Filesize
224KB

Download
memory/1532-44-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1532-40-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1532-46-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1576-29-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1576-26-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1576-28-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4496-17-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4496-20-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4496-23-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4496-19-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads