gh0strat | cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d

Analysis

max time kernel
150s
max time network
122s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
25/05/2024, 19:47

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General

Target
cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe
Size 4.7MB
Sample240525-yhvsysga3x
SHA256 cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d
MD5 03173ed913c3ac2a5bab715c5abbd211
SHA1 c592db1fad923f19aac98904f88bd736bf973a50
SHA512 9b771e9017de11988be30b48d6700f2b079bfa8b8b51e19b715a9482823a89874db946e2272a73cd2f3247b903184cd50d6d30a757c660ee5e71f1786b266976
SSDEEP 98304:Aws2ANnKXOaeOgmhRH5DUQCWEe4bM/2dlG4PEa5O:WKXbeO77xUQCRM/SK
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 5 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/3040-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/3040-21-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2884-41-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2884-50-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2884-52-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 6 IoCs

resource	yara_rule
behavioral1/files/0x002d000000014508-6.dat	family_gh0strat
behavioral1/memory/3040-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/3040-21-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2884-41-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2884-50-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2884-52-0x0000000010000000-0x00000000101B6000-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

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\\259400365.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
2612	R.exe
3040	N.exe
2732	TXPlatfor.exe
2884	TXPlatfor.exe
2752	HD_cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe
1924	Remote Data.exe

Loads dropped DLL 9 IoCs

pid	Process
1260	cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe
2612	R.exe
2360	svchost.exe
1260	cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe
2732	TXPlatfor.exe
1260	cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe
1260	cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe
2360	svchost.exe
1924	Remote Data.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3040-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/3040-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/3040-21-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2884-41-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2884-50-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2884-52-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

description	ioc	Process
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
File created	C:\Windows\SysWOW64\259400365.txt	R.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	R.exe
File created	C:\Windows\SysWOW64\Remote Data.exe	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2652	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1260	cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2884	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3040	N.exe
Token: SeLoadDriverPrivilege	2884	TXPlatfor.exe
Token: 33	2884	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2884	TXPlatfor.exe
Token: 33	2884	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2884	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1260	cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe
1260	cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe
2752	HD_cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe
2752	HD_cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 1260 wrote to memory of 2612	1260	cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe	28
PID 1260 wrote to memory of 2612	1260	cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe	28
PID 1260 wrote to memory of 2612	1260	cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe	28
PID 1260 wrote to memory of 2612	1260	cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe	28
PID 1260 wrote to memory of 3040	1260	cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe	31
PID 1260 wrote to memory of 3040	1260	cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe	31
PID 1260 wrote to memory of 3040	1260	cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe	31
PID 1260 wrote to memory of 3040	1260	cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe	31
PID 1260 wrote to memory of 3040	1260	cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe	31
PID 1260 wrote to memory of 3040	1260	cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe	31
PID 1260 wrote to memory of 3040	1260	cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe	31
PID 3040 wrote to memory of 2676	3040	N.exe	33
PID 3040 wrote to memory of 2676	3040	N.exe	33
PID 3040 wrote to memory of 2676	3040	N.exe	33
PID 3040 wrote to memory of 2676	3040	N.exe	33
PID 2732 wrote to memory of 2884	2732	TXPlatfor.exe	34
PID 2732 wrote to memory of 2884	2732	TXPlatfor.exe	34
PID 2732 wrote to memory of 2884	2732	TXPlatfor.exe	34
PID 2732 wrote to memory of 2884	2732	TXPlatfor.exe	34
PID 2732 wrote to memory of 2884	2732	TXPlatfor.exe	34
PID 2732 wrote to memory of 2884	2732	TXPlatfor.exe	34
PID 2732 wrote to memory of 2884	2732	TXPlatfor.exe	34
PID 1260 wrote to memory of 2752	1260	cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe	36
PID 1260 wrote to memory of 2752	1260	cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe	36
PID 1260 wrote to memory of 2752	1260	cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe	36
PID 1260 wrote to memory of 2752	1260	cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe	36
PID 2676 wrote to memory of 2652	2676	cmd.exe	37
PID 2676 wrote to memory of 2652	2676	cmd.exe	37
PID 2676 wrote to memory of 2652	2676	cmd.exe	37
PID 2676 wrote to memory of 2652	2676	cmd.exe	37
PID 2360 wrote to memory of 1924	2360	svchost.exe	38
PID 2360 wrote to memory of 1924	2360	svchost.exe	38
PID 2360 wrote to memory of 1924	2360	svchost.exe	38
PID 2360 wrote to memory of 1924	2360	svchost.exe	38

C:\Users\Admin\AppData\Local\Temp\cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe
"C:\Users\Admin\AppData\Local\Temp\cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1260
- 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:2612
- 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:3040
- - 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:2676
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:2652
- C:\Users\Admin\AppData\Local\Temp\HD_cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe
  C:\Users\Admin\AppData\Local\Temp\HD_cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:2752

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:2176

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:2360
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\259400365.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:1924

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2732
- 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:2884

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

HD_X.dat

Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Size 2.4MB
SHA256 d3b7c9a0a6140b73ec44127eafb0af5bb8d5093c8c922e72cec06e61ef2d9800
MD5 c00668cd1543c3a04043628c7f3b558a
SHA1 f54ec0ef41c7aa8f23502a6051ea029fc8ddad00
SHA512 50746599fc79eca2d8124faa8cf28adab55e2ca01c93e260af1c60c85816a9c6d44bfc1731076f31f1507c9428b638d866b2378fe0d3a2694322f4ba24dee301
SSDEEP 49152:9CwsbCANnKXferL7Vwe/Gg0P+WhslGH5DUJ:Aws2ANnKXOaeOgmhRH5DUJ
MD5 SHA1 SHA512 SSDEEP

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HD_cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe

Path \Users\Admin\AppData\Local\Temp\HD_cef1139989b351bb50374b3d4d91275c699c36f89f8cda0ba1f50ae2abd5907d.exe
Size 2.3MB
SHA256 dcf52fb9029f76c1c3e7290d522bc555d0f8ef54b21fc7f16c63430995bbb927
MD5 60a5ce24027527c09011309ce33165dc
SHA1 a9d709a6bdfcb1609a986a2f8c2037542934d0ab
SHA512 030af082bfe9101441c504d8f943991623b4fd9585f8b615ef7ff082b20975c6db745284336d76cdac4c6df49a07aa2124a3e05855b4a4d0cd8f6afb842cb927
SSDEEP 24576:hZ+Ihq3jX9Ii1f7JaoLUM4j+FlbZal4boPI7Fqq7EuoIlG4PF8VscdTjeqOB5VHk:hZQJ3PWEFA4bM/2dlG4PGT7a56z
MD5 SHA1 SHA512 SSDEEP

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N.exe

Path \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 \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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259400365.txt

Path \Windows\SysWOW64\259400365.txt
Size 899KB
SHA256 b82970d198aec7976ac1b403a5e80b25a428ef76771ea5be2f7b351af763a391
MD5 e06ae50a01b9a21368b62bef2c25f5c6
SHA1 d0baf0424168e9145c13cc655d1a972cd108b967
SHA512 ec13eb9fb1a85ea807e9936a489c3667aeb4c64781698ead3733378aec3893c1946539a773b2aa69cfae65871166150d470a53ddd6d6508f8c602b1df4831648
SSDEEP 24576:7V2bG+2gMir4fgt7ibhRM5QhKehFdMtRj7nH1PXB:7wqd87VB
MD5 SHA1 SHA512 SSDEEP

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Remote Data.exe

Path \Windows\SysWOW64\Remote Data.exe
Size 43KB
SHA256 5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124
MD5 51138beea3e2c21ec44d0932c71762a8
SHA1 8939cf35447b22dd2c6e6f443446acc1bf986d58
SHA512 794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d
SSDEEP 768:mD+ellQvZSazSRqbSEln5IyYpamDjobj8SpM:E+QWvZhSRqln5IUmDjoXV
MD5 SHA1 SHA512 SSDEEP

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memory/2884-41-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2884-50-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2884-52-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3040-18-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3040-20-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3040-21-0x0000000010000000-0x00000000101B6000-memory.dmp

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