gh0strat | c90c0230b4abada1a1c1d86ee3e15fa885436ccd201b8fba78a02d25c3009706

Analysis

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

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
19/06/2024, 04:32

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General

Target
c90c0230b4abada1a1c1d86ee3e15fa885436ccd201b8fba78a02d25c3009706.exe
Size 2.6MB
Sample240619-e5771syclr
SHA256 c90c0230b4abada1a1c1d86ee3e15fa885436ccd201b8fba78a02d25c3009706
MD5 686cbc6ce208dddf910684b403208b03
SHA1 5ae33ce85a66600ec839d1c04982bd8eb173b922
SHA512 8a9752c8ca1966ce4af793256566e6b71a69130ddb3deb8e9d373b03bdb45b5eb199969cc00c640499c20d80b5b062b3bf7313c5c0987ff2c9f7bf22b62ed3c9
SSDEEP 24576:iCwsbKgbQ5NANIvGTYwMHXA+wT1kfTw4SIuvB74fgt7ibhRM5QhKehFdMtRj7nHb:iCwsbCANnKXferL7Vwe/Gg0P+Whetl
MD5 SHA1 SHA512 SSDEEP

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/4472-19-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4472-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4472-23-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2828-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2828-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4740-47-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4740-49-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4740-52-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral2/files/0x00080000000233ec-5.dat	family_gh0strat
behavioral2/memory/4472-19-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4472-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4472-23-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2828-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2828-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4740-47-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4740-49-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4740-52-0x0000000010000000-0x00000000101B6000-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\\240602546.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 5 IoCs

pid	Process
4440	R.exe
4472	N.exe
2828	TXPlatfor.exe
4740	TXPlatfor.exe
4348	Remote Data.exe

Loads dropped DLL 3 IoCs

pid	Process
4440	R.exe
4048	svchost.exe
4348	Remote Data.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4472-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4472-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4472-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4472-23-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2828-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2828-27-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2828-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4740-47-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4740-49-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4740-52-0x0000000010000000-0x00000000101B6000-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\240602546.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

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	c90c0230b4abada1a1c1d86ee3e15fa885436ccd201b8fba78a02d25c3009706.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
1956	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
4740	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4472	N.exe
Token: SeLoadDriverPrivilege	4740	TXPlatfor.exe
Token: 33	4740	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	4740	TXPlatfor.exe
Token: 33	4740	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	4740	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4888	c90c0230b4abada1a1c1d86ee3e15fa885436ccd201b8fba78a02d25c3009706.exe
4888	c90c0230b4abada1a1c1d86ee3e15fa885436ccd201b8fba78a02d25c3009706.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4888 wrote to memory of 4440	4888	c90c0230b4abada1a1c1d86ee3e15fa885436ccd201b8fba78a02d25c3009706.exe	81
PID 4888 wrote to memory of 4440	4888	c90c0230b4abada1a1c1d86ee3e15fa885436ccd201b8fba78a02d25c3009706.exe	81
PID 4888 wrote to memory of 4440	4888	c90c0230b4abada1a1c1d86ee3e15fa885436ccd201b8fba78a02d25c3009706.exe	81
PID 4888 wrote to memory of 4472	4888	c90c0230b4abada1a1c1d86ee3e15fa885436ccd201b8fba78a02d25c3009706.exe	84
PID 4888 wrote to memory of 4472	4888	c90c0230b4abada1a1c1d86ee3e15fa885436ccd201b8fba78a02d25c3009706.exe	84
PID 4888 wrote to memory of 4472	4888	c90c0230b4abada1a1c1d86ee3e15fa885436ccd201b8fba78a02d25c3009706.exe	84
PID 4472 wrote to memory of 4760	4472	N.exe	86
PID 4472 wrote to memory of 4760	4472	N.exe	86
PID 4472 wrote to memory of 4760	4472	N.exe	86
PID 2828 wrote to memory of 4740	2828	TXPlatfor.exe	87
PID 2828 wrote to memory of 4740	2828	TXPlatfor.exe	87
PID 2828 wrote to memory of 4740	2828	TXPlatfor.exe	87
PID 4760 wrote to memory of 1956	4760	cmd.exe	89
PID 4760 wrote to memory of 1956	4760	cmd.exe	89
PID 4760 wrote to memory of 1956	4760	cmd.exe	89
PID 4048 wrote to memory of 4348	4048	svchost.exe	90
PID 4048 wrote to memory of 4348	4048	svchost.exe	90
PID 4048 wrote to memory of 4348	4048	svchost.exe	90

C:\Users\Admin\AppData\Local\Temp\c90c0230b4abada1a1c1d86ee3e15fa885436ccd201b8fba78a02d25c3009706.exe
"C:\Users\Admin\AppData\Local\Temp\c90c0230b4abada1a1c1d86ee3e15fa885436ccd201b8fba78a02d25c3009706.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4888
- 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:4440
- 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:4472
- - 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:4760
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:1956

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:5048

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:4048
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240602546.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:4348

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2828
- 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:4740

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

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Downloads

HD_X.dat

Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Size 2.6MB
SHA256 c90c0230b4abada1a1c1d86ee3e15fa885436ccd201b8fba78a02d25c3009706
MD5 686cbc6ce208dddf910684b403208b03
SHA1 5ae33ce85a66600ec839d1c04982bd8eb173b922
SHA512 8a9752c8ca1966ce4af793256566e6b71a69130ddb3deb8e9d373b03bdb45b5eb199969cc00c640499c20d80b5b062b3bf7313c5c0987ff2c9f7bf22b62ed3c9
SSDEEP 24576:iCwsbKgbQ5NANIvGTYwMHXA+wT1kfTw4SIuvB74fgt7ibhRM5QhKehFdMtRj7nHb:iCwsbCANnKXferL7Vwe/Gg0P+Whetl
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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240602546.txt

Path C:\Windows\SysWOW64\240602546.txt
Size 899KB
SHA256 39b99732cea9d70c97c259f1d5b7eec8b977c554c07ae14c95d4b446899332cd
MD5 85a3f2c0f036fc57a8dbb14f227bcb5a
SHA1 ed9704e2b9811c70011d063fcb8d9e430419f73a
SHA512 a193ce89cc0819a05754a47de706ef78cfdba3aa206acde94d838cfda5992f5b4b3758bdd62edb4c06aa09f19f5e3326d61d0d8f9cbf525b8bb1d94b8f86c6b6
SSDEEP 24576:7V2bG+2gMir4fgt7ibhRM5QhKehFdMtRj7nH1PXr:7wqd87Vr
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/2828-27-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2828-29-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2828-28-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4472-19-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4472-23-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4472-20-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4472-17-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4740-47-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4740-49-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4740-52-0x0000000010000000-0x00000000101B6000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads