gh0strat | 4913c2545a684d73ec8d0b8be91616622be2fa38aabcaaaee5ff910752974771

Analysis

max time kernel
150s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
25/06/2024, 16:25

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General

Target
4913c2545a684d73ec8d0b8be91616622be2fa38aabcaaaee5ff910752974771.exe
Size 3.6MB
Sample240625-txde1a1akf
SHA256 4913c2545a684d73ec8d0b8be91616622be2fa38aabcaaaee5ff910752974771
MD5 5ce6a6588dc3cbf9017c3144709a9772
SHA1 6de6cc3e12fd5a997d85a4a06701f0fde5572b0d
SHA512 58a2289f1dd57be0d3405a05dd60a3cdd7d0cda3bfc65bf4bfa5867ff391d2813190bd9c7f2dcc4cd39e784646d4c343ba24087bd19c46b28a47a3f5356511a1
SSDEEP 49152:hCwsbCANnKXferL7Vwe/Gg0P+Whx4nzeT3WLuLjmp/fzTwrY8/:Mws2ANnKXOaeOgmhx4nzEWLuL2YrYU
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 10 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/2452-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2452-19-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2452-23-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4316-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4316-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3740-40-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3740-39-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3740-52-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3740-57-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3740-58-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 11 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023441-5.dat	family_gh0strat
behavioral2/memory/2452-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2452-19-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2452-23-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4316-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4316-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3740-40-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3740-39-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3740-52-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3740-57-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3740-58-0x0000000010000000-0x00000000101B6000-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

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\Remote Data\Parameters\ServiceDll = "C:\\Windows\\system32\\240595906.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
1552	R.exe
2452	N.exe
4316	TXPlatfor.exe
3740	TXPlatfor.exe
588	HD_4913c2545a684d73ec8d0b8be91616622be2fa38aabcaaaee5ff910752974771.exe
3404	Remote Data.exe

Loads dropped DLL 3 IoCs

pid	Process
1552	R.exe
744	svchost.exe
3404	Remote Data.exe

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2452-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2452-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2452-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2452-23-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4316-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4316-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3740-37-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3740-40-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3740-39-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4316-26-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3740-52-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3740-57-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3740-58-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\240595906.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

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	4913c2545a684d73ec8d0b8be91616622be2fa38aabcaaaee5ff910752974771.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

pid	Process
4452	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4284	4913c2545a684d73ec8d0b8be91616622be2fa38aabcaaaee5ff910752974771.exe
4284	4913c2545a684d73ec8d0b8be91616622be2fa38aabcaaaee5ff910752974771.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
3740	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2452	N.exe
Token: SeLoadDriverPrivilege	3740	TXPlatfor.exe
Token: 33	3740	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	3740	TXPlatfor.exe
Token: 33	3740	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	3740	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4284	4913c2545a684d73ec8d0b8be91616622be2fa38aabcaaaee5ff910752974771.exe
4284	4913c2545a684d73ec8d0b8be91616622be2fa38aabcaaaee5ff910752974771.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4284 wrote to memory of 1552	4284	4913c2545a684d73ec8d0b8be91616622be2fa38aabcaaaee5ff910752974771.exe	82
PID 4284 wrote to memory of 1552	4284	4913c2545a684d73ec8d0b8be91616622be2fa38aabcaaaee5ff910752974771.exe	82
PID 4284 wrote to memory of 1552	4284	4913c2545a684d73ec8d0b8be91616622be2fa38aabcaaaee5ff910752974771.exe	82
PID 4284 wrote to memory of 2452	4284	4913c2545a684d73ec8d0b8be91616622be2fa38aabcaaaee5ff910752974771.exe	85
PID 4284 wrote to memory of 2452	4284	4913c2545a684d73ec8d0b8be91616622be2fa38aabcaaaee5ff910752974771.exe	85
PID 4284 wrote to memory of 2452	4284	4913c2545a684d73ec8d0b8be91616622be2fa38aabcaaaee5ff910752974771.exe	85
PID 2452 wrote to memory of 1884	2452	N.exe	88
PID 2452 wrote to memory of 1884	2452	N.exe	88
PID 2452 wrote to memory of 1884	2452	N.exe	88
PID 4316 wrote to memory of 3740	4316	TXPlatfor.exe	89
PID 4316 wrote to memory of 3740	4316	TXPlatfor.exe	89
PID 4316 wrote to memory of 3740	4316	TXPlatfor.exe	89
PID 4284 wrote to memory of 588	4284	4913c2545a684d73ec8d0b8be91616622be2fa38aabcaaaee5ff910752974771.exe	90
PID 4284 wrote to memory of 588	4284	4913c2545a684d73ec8d0b8be91616622be2fa38aabcaaaee5ff910752974771.exe	90
PID 4284 wrote to memory of 588	4284	4913c2545a684d73ec8d0b8be91616622be2fa38aabcaaaee5ff910752974771.exe	90
PID 1884 wrote to memory of 4452	1884	cmd.exe	92
PID 1884 wrote to memory of 4452	1884	cmd.exe	92
PID 1884 wrote to memory of 4452	1884	cmd.exe	92
PID 744 wrote to memory of 3404	744	svchost.exe	95
PID 744 wrote to memory of 3404	744	svchost.exe	95
PID 744 wrote to memory of 3404	744	svchost.exe	95

C:\Users\Admin\AppData\Local\Temp\4913c2545a684d73ec8d0b8be91616622be2fa38aabcaaaee5ff910752974771.exe
"C:\Users\Admin\AppData\Local\Temp\4913c2545a684d73ec8d0b8be91616622be2fa38aabcaaaee5ff910752974771.exe"
1⤵
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4284
- C:\Users\Admin\AppData\Local\Temp\R.exe
  C:\Users\Admin\AppData\Local\Temp\\R.exe
  2⤵
  - Server Software Component: Terminal Services DLL
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  PID:1552
- 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:2452
- - 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:1884
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:4452
- C:\Users\Admin\AppData\Local\Temp\HD_4913c2545a684d73ec8d0b8be91616622be2fa38aabcaaaee5ff910752974771.exe
  C:\Users\Admin\AppData\Local\Temp\HD_4913c2545a684d73ec8d0b8be91616622be2fa38aabcaaaee5ff910752974771.exe
  2⤵
  - Executes dropped EXE
  PID:588

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:1776

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:744
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240595906.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:3404

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4316
- 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:3740

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

Server Software Component

T1505

Terminal Services DLL

T1505.005

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

HD_4913c2545a684d73ec8d0b8be91616622be2fa38aabcaaaee5ff910752974771.exe

Path C:\Users\Admin\AppData\Local\Temp\HD_4913c2545a684d73ec8d0b8be91616622be2fa38aabcaaaee5ff910752974771.exe
Size 1.2MB
SHA256 d207f16b533b1ff2def9347100697db8619900015b06e87b97c8a11094ebf693
MD5 e2ee21daa858a561b6aae7f94689be9a
SHA1 7b4a20e37ff622732499ea0d1ca0b85e10bb8c90
SHA512 5efefabf7e2416abf96638200f02219bf0d2d4264c9b36876acf2db7060e081df1fdb3945ecf2a77d19d8b0e2a73060db343116ecb5d5afd67ee889b9eceb53e
SSDEEP 24576:QzeCl2flV3Wiw3hrMT/eCk1IR0p/fQcTwYeYhK/:QzeT3WLuLjmp/fzTwrY8/
MD5 SHA1 SHA512 SSDEEP

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HD_X.dat

Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Size 2.4MB
SHA256 5a3b31aa33a5a3c365f3844be1da381b705381162a0c8c7b2a8d26ddd9a1558b
MD5 5316348d8baab114b2450f6f7aec9281
SHA1 93cbe16ac1984520db831c29cfca7c455acc92da
SHA512 59cdd9c849bd42351a1a15f77460ad44988379e342dd2990f23d7c1e01c2efe281d9ec0e93f2ff6ba60c882a6de6297b0152f490c1dbb39cfd16f111066383ee
SSDEEP 24576:hCwsbKgbQ5NANIvGTYwMHXA+wT1kfTw4SIuvB74fgt7ibhRM5QhKehFdMtRj7nHN:hCwsbCANnKXferL7Vwe/Gg0P+Whx4x
MD5 SHA1 SHA512 SSDEEP

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N.exe

Path C:\Users\Admin\AppData\Local\Temp\N.exe
Size 377KB
SHA256 3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8
MD5 4a36a48e58829c22381572b2040b6fe0
SHA1 f09d30e44ff7e3f20a5de307720f3ad148c6143b
SHA512 5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0
SSDEEP 6144:5UGp2l6zRmeVLNHfkQ2TAygOcqAJwQZgb4YtjH6/MuQafORzEOmFfMzi71o+YHL7:HclcceBKlKwAg0Mja/UafOVwbha
MD5 SHA1 SHA512 SSDEEP

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R.exe

Path C:\Users\Admin\AppData\Local\Temp\R.exe
Size 941KB
SHA256 bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c
MD5 8dc3adf1c490211971c1e2325f1424d2
SHA1 4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5
SHA512 ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d
SSDEEP 24576:N+wT1kfTw4SIuvB74fgt7ibhRM5QhKehFdMtRj7nH1PXw:cerL7Vw
MD5 SHA1 SHA512 SSDEEP

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240595906.txt

Path C:\Windows\SysWOW64\240595906.txt
Size 899KB
SHA256 38829496c81053c0608c99ec816a0e03171ed36c8400e87c8100d6f6b1bfb867
MD5 f9b66d3c5cb41523cb9d9c21fe729d94
SHA1 031dbaa278da2f2dd137635eb942b09c7a7867c3
SHA512 473fbef206431eaa094b96901237ee4a4abdaa2033798e55aadb749de49a507bae7e598b5be880368212e9b06be7796a66aed4524f9b5930230f75501bc265be
SSDEEP 24576:7V2bG+2gMir4fgt7ibhRM5QhKehFdMtRj7nH1PXd:7wqd87Vd
MD5 SHA1 SHA512 SSDEEP

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Remote Data.exe

Path C:\Windows\SysWOW64\Remote Data.exe
Size 60KB
SHA256 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
MD5 889b99c52a60dd49227c5e485a016679
SHA1 8fa889e456aa646a4d0a4349977430ce5fa5e2d7
SHA512 08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641
SSDEEP 1536:H9ykYCTdiHQKrFXmw2RQln5IUmDjoX6+:HlMHprF2nRQln5I
MD5 SHA1 SHA512 SSDEEP

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memory/588-46-0x0000000000400000-0x000000000064C000-memory.dmp

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memory/2452-17-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2452-20-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2452-19-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2452-23-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3740-37-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3740-40-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3740-39-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3740-52-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3740-57-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3740-58-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4316-29-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4316-26-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4316-28-0x0000000010000000-0x00000000101B6000-memory.dmp

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