gh0strat | 04dcfc6b2a2176f840813e0e446e6194eebf8130b01fa0bee732d920853875e3

Analysis

max time kernel
150s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26/05/2024, 13:06

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General

Target
04dcfc6b2a2176f840813e0e446e6194eebf8130b01fa0bee732d920853875e3.exe
Size 2.4MB
Sample240526-qcaa3afb4x
SHA256 04dcfc6b2a2176f840813e0e446e6194eebf8130b01fa0bee732d920853875e3
MD5 fb9e9c361ea766b7b7ac68ffe76d2bb5
SHA1 7722b19bd602ebeab235c78598ef17297d826d5d
SHA512 a0ea9f7c8f3acdebf0cac56c4f329d2de1eb0b9b21d12c37c299e0f633245b518447fb57fbb351bcb662655f7668a19ee13941942e4244b7cbd2111dfac209cb
SSDEEP 24576:vCwsbKgbQ5NANIvGTYwMHXA+wT1kfTw4SIuvB74fgt7ibhRM5QhKehFdMtRj7nHS:vCwsbCANnKXferL7Vwe/Gg0P+WhPh
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/2540-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2540-21-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2680-40-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2680-38-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2680-43-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 6 IoCs

resource	yara_rule
behavioral1/files/0x002c000000015cb6-6.dat	family_gh0strat
behavioral1/memory/2540-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2540-21-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2680-40-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2680-38-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2680-43-0x0000000010000000-0x00000000101B6000-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\\259397963.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
1768	R.exe
2540	N.exe
2616	TXPlatfor.exe
2680	TXPlatfor.exe
2812	Remote Data.exe

Loads dropped DLL 7 IoCs

pid	Process
2024	04dcfc6b2a2176f840813e0e446e6194eebf8130b01fa0bee732d920853875e3.exe
1768	R.exe
2828	svchost.exe
2024	04dcfc6b2a2176f840813e0e446e6194eebf8130b01fa0bee732d920853875e3.exe
2616	TXPlatfor.exe
2828	svchost.exe
2812	Remote Data.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2540-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2540-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2540-21-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2680-40-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2680-38-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2680-43-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\259397963.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

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2672	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2680	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2540	N.exe
Token: SeLoadDriverPrivilege	2680	TXPlatfor.exe
Token: 33	2680	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2680	TXPlatfor.exe
Token: 33	2680	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2680	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2024	04dcfc6b2a2176f840813e0e446e6194eebf8130b01fa0bee732d920853875e3.exe
2024	04dcfc6b2a2176f840813e0e446e6194eebf8130b01fa0bee732d920853875e3.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2024 wrote to memory of 1768	2024	04dcfc6b2a2176f840813e0e446e6194eebf8130b01fa0bee732d920853875e3.exe	28
PID 2024 wrote to memory of 1768	2024	04dcfc6b2a2176f840813e0e446e6194eebf8130b01fa0bee732d920853875e3.exe	28
PID 2024 wrote to memory of 1768	2024	04dcfc6b2a2176f840813e0e446e6194eebf8130b01fa0bee732d920853875e3.exe	28
PID 2024 wrote to memory of 1768	2024	04dcfc6b2a2176f840813e0e446e6194eebf8130b01fa0bee732d920853875e3.exe	28
PID 2024 wrote to memory of 2540	2024	04dcfc6b2a2176f840813e0e446e6194eebf8130b01fa0bee732d920853875e3.exe	31
PID 2024 wrote to memory of 2540	2024	04dcfc6b2a2176f840813e0e446e6194eebf8130b01fa0bee732d920853875e3.exe	31
PID 2024 wrote to memory of 2540	2024	04dcfc6b2a2176f840813e0e446e6194eebf8130b01fa0bee732d920853875e3.exe	31
PID 2024 wrote to memory of 2540	2024	04dcfc6b2a2176f840813e0e446e6194eebf8130b01fa0bee732d920853875e3.exe	31
PID 2024 wrote to memory of 2540	2024	04dcfc6b2a2176f840813e0e446e6194eebf8130b01fa0bee732d920853875e3.exe	31
PID 2024 wrote to memory of 2540	2024	04dcfc6b2a2176f840813e0e446e6194eebf8130b01fa0bee732d920853875e3.exe	31
PID 2024 wrote to memory of 2540	2024	04dcfc6b2a2176f840813e0e446e6194eebf8130b01fa0bee732d920853875e3.exe	31
PID 2540 wrote to memory of 2736	2540	N.exe	33
PID 2540 wrote to memory of 2736	2540	N.exe	33
PID 2540 wrote to memory of 2736	2540	N.exe	33
PID 2540 wrote to memory of 2736	2540	N.exe	33
PID 2616 wrote to memory of 2680	2616	TXPlatfor.exe	34
PID 2616 wrote to memory of 2680	2616	TXPlatfor.exe	34
PID 2616 wrote to memory of 2680	2616	TXPlatfor.exe	34
PID 2616 wrote to memory of 2680	2616	TXPlatfor.exe	34
PID 2616 wrote to memory of 2680	2616	TXPlatfor.exe	34
PID 2616 wrote to memory of 2680	2616	TXPlatfor.exe	34
PID 2616 wrote to memory of 2680	2616	TXPlatfor.exe	34
PID 2736 wrote to memory of 2672	2736	cmd.exe	36
PID 2736 wrote to memory of 2672	2736	cmd.exe	36
PID 2736 wrote to memory of 2672	2736	cmd.exe	36
PID 2736 wrote to memory of 2672	2736	cmd.exe	36
PID 2828 wrote to memory of 2812	2828	svchost.exe	37
PID 2828 wrote to memory of 2812	2828	svchost.exe	37
PID 2828 wrote to memory of 2812	2828	svchost.exe	37
PID 2828 wrote to memory of 2812	2828	svchost.exe	37

C:\Users\Admin\AppData\Local\Temp\04dcfc6b2a2176f840813e0e446e6194eebf8130b01fa0bee732d920853875e3.exe
"C:\Users\Admin\AppData\Local\Temp\04dcfc6b2a2176f840813e0e446e6194eebf8130b01fa0bee732d920853875e3.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2024
- 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:1768
- 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:2540
- - 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:2736
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:2672

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:2228

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:2828
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\259397963.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2812

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2616
- 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:2680

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

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Downloads

HD_X.dat

Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Size 2.4MB
SHA256 04dcfc6b2a2176f840813e0e446e6194eebf8130b01fa0bee732d920853875e3
MD5 fb9e9c361ea766b7b7ac68ffe76d2bb5
SHA1 7722b19bd602ebeab235c78598ef17297d826d5d
SHA512 a0ea9f7c8f3acdebf0cac56c4f329d2de1eb0b9b21d12c37c299e0f633245b518447fb57fbb351bcb662655f7668a19ee13941942e4244b7cbd2111dfac209cb
SSDEEP 24576:vCwsbKgbQ5NANIvGTYwMHXA+wT1kfTw4SIuvB74fgt7ibhRM5QhKehFdMtRj7nHS:vCwsbCANnKXferL7Vwe/Gg0P+WhPh
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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259397963.txt

Path \Windows\SysWOW64\259397963.txt
Size 899KB
SHA256 d691aeeeab548aa41824f0a9215e2bb10f0b7ed6568ce92e52d6dc3a14a93e74
MD5 47335a12431628f6caa93fb921874e92
SHA1 88bf44415218dc07f293887926d5956457c170e5
SHA512 a35e40f4645d3bb641d73274d84b3ba5fbb38bb86f138206fa20bef80ac04b343dbc7940e380c8fb92fcdc24daf6a8a5772014cd1c43c6308bbb14cf53a9a272
SSDEEP 24576:7V2bG+2gMir4fgt7ibhRM5QhKehFdMtRj7nH1PXO:7wqd87VO
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/2540-18-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2540-20-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2540-21-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2680-40-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2680-38-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2680-43-0x0000000010000000-0x00000000101B6000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads