gh0strat | 5ecf941486b7a2f918496e8aabfc48d4aca99204afc0b7a8ccfc0ce96dd9a5f0

Analysis

max time kernel
150s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
26/05/2024, 08:50

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General

Target
5ecf941486b7a2f918496e8aabfc48d4aca99204afc0b7a8ccfc0ce96dd9a5f0.exe
Size 9.2MB
Sample240526-krlpradf53
SHA256 5ecf941486b7a2f918496e8aabfc48d4aca99204afc0b7a8ccfc0ce96dd9a5f0
MD5 7d96e144a904b13bd4396d97b15a9141
SHA1 18a9f5a5b6a3e994bea0c97f557db69e4ec96ff2
SHA512 293f3feec56bed46e9b20fcc733647472cc92f1dbc655f872bd9e15b647f5b144d40b9a3e47b48382bb32291cadbbbb6fdcb2249ef2140c5ca666a7ca00176fa
SSDEEP 98304:Uws2ANnKXOaeOgmhCLnw8tydtdUeitbTUOhnxidIVAP:CKXbeO7ML37VTb/g
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 8 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/1536-19-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1536-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1536-26-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1964-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1964-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2984-40-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2984-45-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2984-44-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral2/files/0x000700000002340f-5.dat	family_gh0strat
behavioral2/memory/1536-19-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1536-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1536-26-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1964-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1964-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2984-40-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2984-45-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2984-44-0x0000000010000000-0x00000000101B6000-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\\240618171.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
1276	R.exe
1536	N.exe
1964	TXPlatfor.exe
2984	TXPlatfor.exe
4088	HD_5ecf941486b7a2f918496e8aabfc48d4aca99204afc0b7a8ccfc0ce96dd9a5f0.exe
880	Remote Data.exe

Loads dropped DLL 3 IoCs

pid	Process
1276	R.exe
4364	svchost.exe
880	Remote Data.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1536-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1536-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1536-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1964-25-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1536-26-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1964-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1964-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2984-40-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2984-45-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2984-44-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kwallpaper = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\kwallpaper.exe\" -autorun"	HD_5ecf941486b7a2f918496e8aabfc48d4aca99204afc0b7a8ccfc0ce96dd9a5f0.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\240618171.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	5ecf941486b7a2f918496e8aabfc48d4aca99204afc0b7a8ccfc0ce96dd9a5f0.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
5096	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5004	5ecf941486b7a2f918496e8aabfc48d4aca99204afc0b7a8ccfc0ce96dd9a5f0.exe
5004	5ecf941486b7a2f918496e8aabfc48d4aca99204afc0b7a8ccfc0ce96dd9a5f0.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2984	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1536	N.exe
Token: SeLoadDriverPrivilege	2984	TXPlatfor.exe
Token: 33	2984	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2984	TXPlatfor.exe
Token: 33	2984	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2984	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5004	5ecf941486b7a2f918496e8aabfc48d4aca99204afc0b7a8ccfc0ce96dd9a5f0.exe
5004	5ecf941486b7a2f918496e8aabfc48d4aca99204afc0b7a8ccfc0ce96dd9a5f0.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 5004 wrote to memory of 1276	5004	5ecf941486b7a2f918496e8aabfc48d4aca99204afc0b7a8ccfc0ce96dd9a5f0.exe	83
PID 5004 wrote to memory of 1276	5004	5ecf941486b7a2f918496e8aabfc48d4aca99204afc0b7a8ccfc0ce96dd9a5f0.exe	83
PID 5004 wrote to memory of 1276	5004	5ecf941486b7a2f918496e8aabfc48d4aca99204afc0b7a8ccfc0ce96dd9a5f0.exe	83
PID 5004 wrote to memory of 1536	5004	5ecf941486b7a2f918496e8aabfc48d4aca99204afc0b7a8ccfc0ce96dd9a5f0.exe	86
PID 5004 wrote to memory of 1536	5004	5ecf941486b7a2f918496e8aabfc48d4aca99204afc0b7a8ccfc0ce96dd9a5f0.exe	86
PID 5004 wrote to memory of 1536	5004	5ecf941486b7a2f918496e8aabfc48d4aca99204afc0b7a8ccfc0ce96dd9a5f0.exe	86
PID 1536 wrote to memory of 2440	1536	N.exe	88
PID 1536 wrote to memory of 2440	1536	N.exe	88
PID 1536 wrote to memory of 2440	1536	N.exe	88
PID 1964 wrote to memory of 2984	1964	TXPlatfor.exe	89
PID 1964 wrote to memory of 2984	1964	TXPlatfor.exe	89
PID 1964 wrote to memory of 2984	1964	TXPlatfor.exe	89
PID 5004 wrote to memory of 4088	5004	5ecf941486b7a2f918496e8aabfc48d4aca99204afc0b7a8ccfc0ce96dd9a5f0.exe	90
PID 5004 wrote to memory of 4088	5004	5ecf941486b7a2f918496e8aabfc48d4aca99204afc0b7a8ccfc0ce96dd9a5f0.exe	90
PID 2440 wrote to memory of 5096	2440	cmd.exe	93
PID 2440 wrote to memory of 5096	2440	cmd.exe	93
PID 2440 wrote to memory of 5096	2440	cmd.exe	93
PID 4364 wrote to memory of 880	4364	svchost.exe	101
PID 4364 wrote to memory of 880	4364	svchost.exe	101
PID 4364 wrote to memory of 880	4364	svchost.exe	101

C:\Users\Admin\AppData\Local\Temp\5ecf941486b7a2f918496e8aabfc48d4aca99204afc0b7a8ccfc0ce96dd9a5f0.exe
"C:\Users\Admin\AppData\Local\Temp\5ecf941486b7a2f918496e8aabfc48d4aca99204afc0b7a8ccfc0ce96dd9a5f0.exe"
1⤵
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5004
- 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:1276
- 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:1536
- - 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:2440
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:5096
- C:\Users\Admin\AppData\Local\Temp\HD_5ecf941486b7a2f918496e8aabfc48d4aca99204afc0b7a8ccfc0ce96dd9a5f0.exe
  C:\Users\Admin\AppData\Local\Temp\HD_5ecf941486b7a2f918496e8aabfc48d4aca99204afc0b7a8ccfc0ce96dd9a5f0.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  PID:4088

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:4512

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:4364
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240618171.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:880

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1964
- 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:2984

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

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

HD_5ecf941486b7a2f918496e8aabfc48d4aca99204afc0b7a8ccfc0ce96dd9a5f0.exe

Path C:\Users\Admin\AppData\Local\Temp\HD_5ecf941486b7a2f918496e8aabfc48d4aca99204afc0b7a8ccfc0ce96dd9a5f0.exe
Size 6.8MB
SHA256 662c527780afda3e906a40b90aade73e1ea0c8777bdb44060b78c4f0b1cf77c9
MD5 fda17137b2014f1042b03165fcda21a7
SHA1 53a229b185bcceec6a812120a1c07de3c0bbf66d
SHA512 6cf0dc9211d525bdd30d346c7e922585b9835927f9a02d7c62566a2e03915846971fe3632c6a91cff0d65b6c241661f11d2e74f01f0d4a3a13da00224a6bf42f
SSDEEP 49152:0nWnLrNWNFU2RvUWzbrlVsBP7nZydtzxlrmesJZDkT5Gbbr2m3/Uf2LNPPhjzFcP:3nw8tydtdUeitbTUOhnxidIVAP
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 afa3e0c9b7c6a4ca16d7133a72ac4d66f06ad6f697a5f992e172f97a45af0520
MD5 52744d4bb584448e65f2b0687515cef9
SHA1 66b847f8e55615eddbdc83601e6025598e09c784
SHA512 63b191714c75e7217bcb6c0aeb2582de7f8ac6a42934ef23ba5ab0ba8dc486a889a616e4205a977c010655d38d3f411d983f8f62f8cd47c6e83bff476c5a020f
SSDEEP 24576:ZCwsbKgbQ5NANIvGTYwMHXA+wT1kfTw4SIuvB74fgt7ibhRM5QhKehFdMtRj7nH8:ZCwsbCANnKXferL7Vwe/Gg0P+WhC+
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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240618171.txt

Path C:\Windows\SysWOW64\240618171.txt
Size 899KB
SHA256 19afdee4a52fca36c809965e251c2d268c4c3e15f7aeb6b724a09dbf9520d093
MD5 93ae42abe4c811e7049e305e913152ae
SHA1 fe1f6f12920cfc534976a338ed350c7459508f5c
SHA512 1cfedf0c591e60ca099c26daf68883551e65c6cb0c9708d9994fef0ea4aec16c646c30d91ed74a5268944c6c6c3c20489f61bf261dec7cbe3ef04d9ac1484ab6
SSDEEP 24576:7V2bG+2gMir4fgt7ibhRM5QhKehFdMtRj7nH1PXw:7wqd87Vw
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/1536-19-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/1536-20-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/1536-18-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/1536-26-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/1964-29-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/1964-28-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/1964-25-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2984-40-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2984-45-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2984-44-0x0000000010000000-0x00000000101B6000-memory.dmp

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