gh0strat | ad8ae63fa4b529ba89213916821ff5ad0e9d36635974de98d7a34a72e8b4aa1d

Analysis

max time kernel
150s
max time network
145s
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, 14:02

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General

Target
ad8ae63fa4b529ba89213916821ff5ad0e9d36635974de98d7a34a72e8b4aa1d.exe
Size 4.4MB
Sample240526-rb8ynshf73
SHA256 ad8ae63fa4b529ba89213916821ff5ad0e9d36635974de98d7a34a72e8b4aa1d
MD5 c11f916eaa4a45a6caad64b9e2f4573c
SHA1 c67d95fd97f2fc86c56bb73505e9aa1f321961ff
SHA512 eb77c28f6411490b8d331a6d015793c46e8dd097ec040889df183974ab529de11593535cdd1e6e2ca580ce704034240ed059cf56f0f2f1955e3505f4710207e5
SSDEEP 98304:pws2ANnKXOaeOgmhAtOZ0yvcF6zyTcieCVNn4rD18Xj/ca:bKXbeO7EOZTztiZT818Xj
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gh0strat purplefox bootkit persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 8 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/3380-18-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3380-22-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3380-19-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3360-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3360-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3104-40-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3104-43-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3104-46-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023406-5.dat	family_gh0strat
behavioral2/memory/3380-18-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3380-22-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3380-19-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3360-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3360-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3104-40-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3104-43-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3104-46-0x0000000010000000-0x00000000101B6000-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\\240600015.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
5728	R.exe
3380	N.exe
3360	TXPlatfor.exe
3104	TXPlatfor.exe
556	HD_ad8ae63fa4b529ba89213916821ff5ad0e9d36635974de98d7a34a72e8b4aa1d.exe
5412	Remote Data.exe

Loads dropped DLL 3 IoCs

pid	Process
5728	R.exe
4376	svchost.exe
5412	Remote Data.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3380-16-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3380-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3380-22-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3380-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3360-27-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3360-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3360-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3104-40-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3104-43-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3104-46-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	HD_ad8ae63fa4b529ba89213916821ff5ad0e9d36635974de98d7a34a72e8b4aa1d.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\TXPlatfor.exe	N.exe
File created	C:\Windows\SysWOW64\240600015.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

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	ad8ae63fa4b529ba89213916821ff5ad0e9d36635974de98d7a34a72e8b4aa1d.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
3440	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3408	ad8ae63fa4b529ba89213916821ff5ad0e9d36635974de98d7a34a72e8b4aa1d.exe
3408	ad8ae63fa4b529ba89213916821ff5ad0e9d36635974de98d7a34a72e8b4aa1d.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
3104	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3380	N.exe
Token: SeLoadDriverPrivilege	3104	TXPlatfor.exe
Token: 33	3104	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	3104	TXPlatfor.exe
Token: 33	3104	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	3104	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3408	ad8ae63fa4b529ba89213916821ff5ad0e9d36635974de98d7a34a72e8b4aa1d.exe
3408	ad8ae63fa4b529ba89213916821ff5ad0e9d36635974de98d7a34a72e8b4aa1d.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3408 wrote to memory of 5728	3408	ad8ae63fa4b529ba89213916821ff5ad0e9d36635974de98d7a34a72e8b4aa1d.exe	83
PID 3408 wrote to memory of 5728	3408	ad8ae63fa4b529ba89213916821ff5ad0e9d36635974de98d7a34a72e8b4aa1d.exe	83
PID 3408 wrote to memory of 5728	3408	ad8ae63fa4b529ba89213916821ff5ad0e9d36635974de98d7a34a72e8b4aa1d.exe	83
PID 3408 wrote to memory of 3380	3408	ad8ae63fa4b529ba89213916821ff5ad0e9d36635974de98d7a34a72e8b4aa1d.exe	86
PID 3408 wrote to memory of 3380	3408	ad8ae63fa4b529ba89213916821ff5ad0e9d36635974de98d7a34a72e8b4aa1d.exe	86
PID 3408 wrote to memory of 3380	3408	ad8ae63fa4b529ba89213916821ff5ad0e9d36635974de98d7a34a72e8b4aa1d.exe	86
PID 3380 wrote to memory of 4176	3380	N.exe	90
PID 3380 wrote to memory of 4176	3380	N.exe	90
PID 3380 wrote to memory of 4176	3380	N.exe	90
PID 3360 wrote to memory of 3104	3360	TXPlatfor.exe	91
PID 3360 wrote to memory of 3104	3360	TXPlatfor.exe	91
PID 3360 wrote to memory of 3104	3360	TXPlatfor.exe	91
PID 3408 wrote to memory of 556	3408	ad8ae63fa4b529ba89213916821ff5ad0e9d36635974de98d7a34a72e8b4aa1d.exe	92
PID 3408 wrote to memory of 556	3408	ad8ae63fa4b529ba89213916821ff5ad0e9d36635974de98d7a34a72e8b4aa1d.exe	92
PID 3408 wrote to memory of 556	3408	ad8ae63fa4b529ba89213916821ff5ad0e9d36635974de98d7a34a72e8b4aa1d.exe	92
PID 4176 wrote to memory of 3440	4176	cmd.exe	96
PID 4176 wrote to memory of 3440	4176	cmd.exe	96
PID 4176 wrote to memory of 3440	4176	cmd.exe	96
PID 4376 wrote to memory of 5412	4376	svchost.exe	97
PID 4376 wrote to memory of 5412	4376	svchost.exe	97
PID 4376 wrote to memory of 5412	4376	svchost.exe	97

C:\Users\Admin\AppData\Local\Temp\ad8ae63fa4b529ba89213916821ff5ad0e9d36635974de98d7a34a72e8b4aa1d.exe
"C:\Users\Admin\AppData\Local\Temp\ad8ae63fa4b529ba89213916821ff5ad0e9d36635974de98d7a34a72e8b4aa1d.exe"
1⤵
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3408
- 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:5728
- 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:3380
- - 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:4176
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:3440
- C:\Users\Admin\AppData\Local\Temp\HD_ad8ae63fa4b529ba89213916821ff5ad0e9d36635974de98d7a34a72e8b4aa1d.exe
  C:\Users\Admin\AppData\Local\Temp\HD_ad8ae63fa4b529ba89213916821ff5ad0e9d36635974de98d7a34a72e8b4aa1d.exe
  2⤵
  - Executes dropped EXE
  - Writes to the Master Boot Record (MBR)
  PID:556

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:4208

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:4376
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240600015.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:5412

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3360
- 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:3104

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

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

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_X.dat

Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Size 2.6MB
SHA256 d66160c0692fbabb34dfc9d2f1809c3820f45b264ad51a995e0475b519a8b912
MD5 19ac25aa3288836feb07140c2c334617
SHA1 4d944d980ce063a3bd58774a3d99aeb65cde5f54
SHA512 6de98a39efec57a085e5b6039341bdcdbebd0ce5512367b7f76f051c0d9f47d6891637c1244c19277668d03c977bfae843b48599bd0f029224cd8240f5d4f5b6
SSDEEP 24576:OCwsbKgbQ5NANIvGTYwMHXA+wT1kfTw4SIuvB74fgt7ibhRM5QhKehFdMtRj7nHK:OCwsbCANnKXferL7Vwe/Gg0P+WhAs
MD5 SHA1 SHA512 SSDEEP

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HD_ad8ae63fa4b529ba89213916821ff5ad0e9d36635974de98d7a34a72e8b4aa1d.exe

Path C:\Users\Admin\AppData\Local\Temp\HD_ad8ae63fa4b529ba89213916821ff5ad0e9d36635974de98d7a34a72e8b4aa1d.exe
Size 1.8MB
SHA256 4c8803a42319c4885f30d18075872758ecc09c9a175d484fd488108906849da1
MD5 af1a94be0e586ef9367d38a39b649bef
SHA1 44c8ef15229c2cc71426c5b8a5b8f926f1696dfe
SHA512 b0da4f8b3608e59c0a0ec383455e1ade6592f45625f631b6a2874a9b05a7899f039c356787efe75d16306284a6f0eac0fdae64c69a9e1687dd6c5936a6767abe
SSDEEP 49152:LOZ0yvcF6zNEfn22cie2nVXdx14rD18LDPL/cah:LOZ0yvcF6zyTcieCVNn4rD18Xj/ca
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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240600015.txt

Path C:\Windows\SysWOW64\240600015.txt
Size 899KB
SHA256 d88085b48e70fbc5c1bb47634352c749a3378eecbf9a84e536a08423332b3c31
MD5 f99fdd905c9962440368d3ece3151ba9
SHA1 e37787e12067ac7a74ee9271e85a799a02bc0f95
SHA512 a191b95f165bc793da966e62f59f8d37e042d0e916de08cc7b7460bdae4d2904a11de3c798e0e87f7f3c64ba2d5dd4f39711893104dd23eb536e090b6f9a4ad1
SSDEEP 24576:7V2bG+2gMir4fgt7ibhRM5QhKehFdMtRj7nH1PXc:7wqd87Vc
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/3104-46-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3104-43-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3104-40-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3360-29-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3360-28-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3360-27-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3380-19-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3380-22-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3380-18-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3380-16-0x0000000010000000-0x00000000101B6000-memory.dmp

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