gh0strat | b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a

Analysis

max time kernel
150s
max time network
124s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26/05/2024, 12:17

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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 7 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/2496-21-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2496-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2560-42-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2560-41-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2560-44-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2560-46-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2560-48-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 8 IoCs

resource	yara_rule
behavioral1/files/0x0023000000014b6d-6.dat	family_gh0strat
behavioral1/memory/2496-21-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2496-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2560-42-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2560-41-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2560-44-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2560-46-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2560-48-0x0000000010000000-0x00000000101B6000-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\\259430863.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
2136	R.exe
2496	N.exe
2512	TXPlatfor.exe
2560	TXPlatfor.exe
2812	HD_b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe
1500	Remote Data.exe

Loads dropped DLL 8 IoCs

pid	Process
1336	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe
2136	R.exe
2860	svchost.exe
1336	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe
2512	TXPlatfor.exe
1336	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe
2860	svchost.exe
1500	Remote Data.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2496-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2496-21-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2496-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2560-39-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2560-42-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2560-41-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2560-44-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2560-46-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2560-48-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\TXPlatfor.exe	N.exe
File opened for modification	C:\Windows\SysWOW64\TXPlatfor.exe	N.exe
File created	C:\Windows\SysWOW64\259430863.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

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2368	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1336	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2560	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2496	N.exe
Token: SeLoadDriverPrivilege	2560	TXPlatfor.exe
Token: SeDebugPrivilege	2812	HD_b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe
Token: 33	2560	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2560	TXPlatfor.exe
Token: 33	2560	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2560	TXPlatfor.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2812	HD_b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1336	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe
1336	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 1336 wrote to memory of 2136	1336	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe	28
PID 1336 wrote to memory of 2136	1336	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe	28
PID 1336 wrote to memory of 2136	1336	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe	28
PID 1336 wrote to memory of 2136	1336	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe	28
PID 1336 wrote to memory of 2496	1336	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe	31
PID 1336 wrote to memory of 2496	1336	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe	31
PID 1336 wrote to memory of 2496	1336	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe	31
PID 1336 wrote to memory of 2496	1336	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe	31
PID 1336 wrote to memory of 2496	1336	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe	31
PID 1336 wrote to memory of 2496	1336	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe	31
PID 1336 wrote to memory of 2496	1336	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe	31
PID 2496 wrote to memory of 2472	2496	N.exe	33
PID 2496 wrote to memory of 2472	2496	N.exe	33
PID 2496 wrote to memory of 2472	2496	N.exe	33
PID 2496 wrote to memory of 2472	2496	N.exe	33
PID 2512 wrote to memory of 2560	2512	TXPlatfor.exe	35
PID 2512 wrote to memory of 2560	2512	TXPlatfor.exe	35
PID 2512 wrote to memory of 2560	2512	TXPlatfor.exe	35
PID 2512 wrote to memory of 2560	2512	TXPlatfor.exe	35
PID 2512 wrote to memory of 2560	2512	TXPlatfor.exe	35
PID 2512 wrote to memory of 2560	2512	TXPlatfor.exe	35
PID 2512 wrote to memory of 2560	2512	TXPlatfor.exe	35
PID 1336 wrote to memory of 2812	1336	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe	36
PID 1336 wrote to memory of 2812	1336	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe	36
PID 1336 wrote to memory of 2812	1336	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe	36
PID 1336 wrote to memory of 2812	1336	b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe	36
PID 2472 wrote to memory of 2368	2472	cmd.exe	37
PID 2472 wrote to memory of 2368	2472	cmd.exe	37
PID 2472 wrote to memory of 2368	2472	cmd.exe	37
PID 2472 wrote to memory of 2368	2472	cmd.exe	37
PID 2860 wrote to memory of 1500	2860	svchost.exe	38
PID 2860 wrote to memory of 1500	2860	svchost.exe	38
PID 2860 wrote to memory of 1500	2860	svchost.exe	38
PID 2860 wrote to memory of 1500	2860	svchost.exe	38

C:\Users\Admin\AppData\Local\Temp\b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe
"C:\Users\Admin\AppData\Local\Temp\b2cead5d49c5ef942235c4f5da1d1a6e60f071e2c60e66aad39f48102a63373a.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1336
- 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:2136
- 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:2496
- - 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:2472
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:2368
- 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:2812

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:2556

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:2860
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\259430863.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:1500

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2512
- 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:2560

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Remote System Discovery

T1018

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
2.6MB

MD5
051079226c042004b2e199bfdaf07a8c

SHA1
71c80641b635be62f53b2ac1cabeb91a7bb11190

SHA256
f37587f2c20e45c8242fcb8d24b6ee5e1664f4c15a9d5866a9e210527e6a93ad

SHA512
0f6e498bbbe61d84df1ff3ecdcadd2020359cd169c3e8deb4f3da4f18b4c4da2ea19b7926889ab4acbf27cb4bb13245d346a9523161a62e89f82db1d50133b3e

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

Filesize
941KB

MD5
8dc3adf1c490211971c1e2325f1424d2

SHA1
4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5

SHA256
bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c

SHA512
ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d

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

Filesize
3.0MB

MD5
33909b43dd1162ffe0e6403e63371107

SHA1
742785dcd0212fa1568d033c2aef732e6faead16

SHA256
c41b1bb28d482c2664049265dbe1bf6d610073ee8cdfb413d415ca2bfb614afc

SHA512
d7ceb9c2b25b9914b4ace91ce08d8d559822fd957498dc34379792e3b5283d4015d5e8b3bbf67202645d0bb119840fb43942dac2b6828fd557a24cd2731b8bf0

Download Submit
\Users\Admin\AppData\Local\Temp\N.exe

Filesize
377KB

MD5
4a36a48e58829c22381572b2040b6fe0

SHA1
f09d30e44ff7e3f20a5de307720f3ad148c6143b

SHA256
3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

SHA512
5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

Download Submit
\Windows\SysWOW64\259430863.txt

Filesize
899KB

MD5
e01e4b0ca3723b18c769b19c1f0c3513

SHA1
3be04e331536ef3641db949b4df5aea2a7613ed5

SHA256
c1560497bf0631f1e98b81e216f24c651dfa3a773e5c5f21097e3597e0b117e3

SHA512
602d6f26b1230403eb89492856cfb35401062df0f1e748f806bc33ffaa47f606591c4bccad10faf1496a16b731ded119e2c09db45faca86fa612a36d1342038c

Download Submit
\Windows\SysWOW64\Remote Data.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/2496-20-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2496-21-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2496-19-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2560-42-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2560-41-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2560-44-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2560-46-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2560-48-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2560-39-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2812-49-0x0000000000990000-0x0000000000C9A000-memory.dmp

Filesize
3.0MB

Download
memory/2812-59-0x0000000000900000-0x000000000090A000-memory.dmp

Filesize
40KB

Download
memory/2812-58-0x0000000000900000-0x000000000090A000-memory.dmp

Filesize
40KB

Download
memory/2812-62-0x000000001BA70000-0x000000001BB18000-memory.dmp

Filesize
672KB

Download
memory/2812-71-0x0000000000900000-0x000000000090A000-memory.dmp

Filesize
40KB

Download
memory/2812-72-0x0000000000900000-0x000000000090A000-memory.dmp

Filesize
40KB

Download
memory/2812-51-0x000000001B7A0000-0x000000001BA68000-memory.dmp

Filesize
2.8MB

Download