gh0strat | dff9e4d97bbf2ce27861be9055c2e9c8932d6ba6fdd00e3e69ab9f7db3829796

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
29/05/2024, 06:55

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General

Target
dff9e4d97bbf2ce27861be9055c2e9c8932d6ba6fdd00e3e69ab9f7db3829796.exe
Size 3.6MB
Sample240529-hp4rfafa28
SHA256 dff9e4d97bbf2ce27861be9055c2e9c8932d6ba6fdd00e3e69ab9f7db3829796
MD5 52777195d7af3db72fac28ea05337c87
SHA1 e19b2b37a850ddd22e164c1cd7ff3bccabfa46e3
SHA512 55f55b9fe498fc59d060254abdb3826cec6e42016a950a2f4750906caca77e35324dcc0b69a1a0f952dc0c38db0badd0fe4f3f9e5a3b6d2d782455e7cbcdac65
SSDEEP 49152:NCwsbCANnKXferL7Vwe/Gg0P+WhrP/7J3jrI+7TvuBoM:wws2ANnKXOaeOgmhLN3jEPBoM
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/4428-19-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4428-21-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4428-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3224-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2480-37-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2480-44-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3224-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2480-56-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral2/files/0x00080000000233f7-5.dat	family_gh0strat
behavioral2/memory/4428-19-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4428-21-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4428-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3224-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2480-37-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2480-44-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3224-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2480-56-0x0000000010000000-0x00000000101B6000-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\\240602078.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
2260	R.exe
4428	N.exe
3224	TXPlatfor.exe
2480	TXPlatfor.exe
4884	HD_dff9e4d97bbf2ce27861be9055c2e9c8932d6ba6fdd00e3e69ab9f7db3829796.exe
3420	Remote Data.exe

Loads dropped DLL 3 IoCs

pid	Process
2260	R.exe
2468	svchost.exe
3420	Remote Data.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4428-16-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4428-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4428-21-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4428-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3224-26-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3224-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2480-37-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2480-44-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3224-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2480-56-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

description	ioc	Process
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
File created	C:\Windows\SysWOW64\240602078.txt	R.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	dff9e4d97bbf2ce27861be9055c2e9c8932d6ba6fdd00e3e69ab9f7db3829796.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
2700	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4092	dff9e4d97bbf2ce27861be9055c2e9c8932d6ba6fdd00e3e69ab9f7db3829796.exe
4092	dff9e4d97bbf2ce27861be9055c2e9c8932d6ba6fdd00e3e69ab9f7db3829796.exe
4884	HD_dff9e4d97bbf2ce27861be9055c2e9c8932d6ba6fdd00e3e69ab9f7db3829796.exe
4884	HD_dff9e4d97bbf2ce27861be9055c2e9c8932d6ba6fdd00e3e69ab9f7db3829796.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2480	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4428	N.exe
Token: SeLoadDriverPrivilege	2480	TXPlatfor.exe
Token: 33	2480	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2480	TXPlatfor.exe
Token: 33	2480	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2480	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4092	dff9e4d97bbf2ce27861be9055c2e9c8932d6ba6fdd00e3e69ab9f7db3829796.exe
4092	dff9e4d97bbf2ce27861be9055c2e9c8932d6ba6fdd00e3e69ab9f7db3829796.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4092 wrote to memory of 2260	4092	dff9e4d97bbf2ce27861be9055c2e9c8932d6ba6fdd00e3e69ab9f7db3829796.exe	82
PID 4092 wrote to memory of 2260	4092	dff9e4d97bbf2ce27861be9055c2e9c8932d6ba6fdd00e3e69ab9f7db3829796.exe	82
PID 4092 wrote to memory of 2260	4092	dff9e4d97bbf2ce27861be9055c2e9c8932d6ba6fdd00e3e69ab9f7db3829796.exe	82
PID 4092 wrote to memory of 4428	4092	dff9e4d97bbf2ce27861be9055c2e9c8932d6ba6fdd00e3e69ab9f7db3829796.exe	85
PID 4092 wrote to memory of 4428	4092	dff9e4d97bbf2ce27861be9055c2e9c8932d6ba6fdd00e3e69ab9f7db3829796.exe	85
PID 4092 wrote to memory of 4428	4092	dff9e4d97bbf2ce27861be9055c2e9c8932d6ba6fdd00e3e69ab9f7db3829796.exe	85
PID 4428 wrote to memory of 2772	4428	N.exe	87
PID 4428 wrote to memory of 2772	4428	N.exe	87
PID 4428 wrote to memory of 2772	4428	N.exe	87
PID 3224 wrote to memory of 2480	3224	TXPlatfor.exe	88
PID 3224 wrote to memory of 2480	3224	TXPlatfor.exe	88
PID 3224 wrote to memory of 2480	3224	TXPlatfor.exe	88
PID 4092 wrote to memory of 4884	4092	dff9e4d97bbf2ce27861be9055c2e9c8932d6ba6fdd00e3e69ab9f7db3829796.exe	89
PID 4092 wrote to memory of 4884	4092	dff9e4d97bbf2ce27861be9055c2e9c8932d6ba6fdd00e3e69ab9f7db3829796.exe	89
PID 4092 wrote to memory of 4884	4092	dff9e4d97bbf2ce27861be9055c2e9c8932d6ba6fdd00e3e69ab9f7db3829796.exe	89
PID 2772 wrote to memory of 2700	2772	cmd.exe	91
PID 2772 wrote to memory of 2700	2772	cmd.exe	91
PID 2772 wrote to memory of 2700	2772	cmd.exe	91
PID 2468 wrote to memory of 3420	2468	svchost.exe	100
PID 2468 wrote to memory of 3420	2468	svchost.exe	100
PID 2468 wrote to memory of 3420	2468	svchost.exe	100

C:\Users\Admin\AppData\Local\Temp\dff9e4d97bbf2ce27861be9055c2e9c8932d6ba6fdd00e3e69ab9f7db3829796.exe
"C:\Users\Admin\AppData\Local\Temp\dff9e4d97bbf2ce27861be9055c2e9c8932d6ba6fdd00e3e69ab9f7db3829796.exe"
1⤵
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4092
- 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:2260
- 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:4428
- - 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:2772
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:2700
- C:\Users\Admin\AppData\Local\Temp\HD_dff9e4d97bbf2ce27861be9055c2e9c8932d6ba6fdd00e3e69ab9f7db3829796.exe
  C:\Users\Admin\AppData\Local\Temp\HD_dff9e4d97bbf2ce27861be9055c2e9c8932d6ba6fdd00e3e69ab9f7db3829796.exe
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  PID:4884

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:1640

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:2468
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240602078.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:3420

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3224
- 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:2480

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

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 37c46b29449894b4d5ebc521a1a789542a92bf583eefee2c6a540261707674e7
MD5 b8f245eb63b6c55b7621713e7610d317
SHA1 8805adfea934dfbb4961e5dd2ba56725c1f6dbb1
SHA512 0a49889cd5c5e64b8972d95f58ca0cb51a9b2deb828c94ba12a4ec9ba0eda908f9cd375fa91cd02984e003e273d543c754c3ad29a1195051ef573b011d9473ca
SSDEEP 24576:NCwsbKgbQ5NANIvGTYwMHXA+wT1kfTw4SIuvB74fgt7ibhRM5QhKehFdMtRj7nHS:NCwsbCANnKXferL7Vwe/Gg0P+WhrPF
MD5 SHA1 SHA512 SSDEEP

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HD_dff9e4d97bbf2ce27861be9055c2e9c8932d6ba6fdd00e3e69ab9f7db3829796.exe

Path C:\Users\Admin\AppData\Local\Temp\HD_dff9e4d97bbf2ce27861be9055c2e9c8932d6ba6fdd00e3e69ab9f7db3829796.exe
Size 974KB
SHA256 d078d2c3b9f278e244dd2e797586a092339984ed8b461648c74c3da5c962a042
MD5 94943ac76d2dfcac23ca6a986b46bec8
SHA1 2dc24ee1020363ad8cc901edf33e1bdbccb82620
SHA512 158e82c06fabbc35176c49cb3a0367b538fb2cdb86672f4b942cde8eca41c3e7c356e6a539355aceb73a9d324423c1a4bfba1bb267d73f350845a2e325372a1a
SSDEEP 12288:p4R8Lf3qZTmtMBfBZupBwulOS6SVsnuq9onEXZoOJKzZ2e8b/G8vuBoM:po8LcoMJ3uX/6l7+6I2Rb/TvuBoM
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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240602078.txt

Path C:\Windows\SysWOW64\240602078.txt
Size 899KB
SHA256 fdb0013c0e44ddc05de4ff485c4c5cde046c2c783343a7b042670830fa14e691
MD5 b3ced266b797e18fc4597bac689076c3
SHA1 75d973fb17f379aa39533830006fd6f933ed9977
SHA512 e63ad74c0a68c744e86c221a2214a005236cf5f5f4cf7b9951a415ba12590f5165c99cf33028029acc14b97b5223e0618308ead3f03cfb179c448e43f3f21931
SSDEEP 24576:7V2bG+2gMir4fgt7ibhRM5QhKehFdMtRj7nH1PXk:7wqd87Vk
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/2480-37-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2480-56-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2480-44-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3224-29-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3224-26-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3224-28-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4428-20-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4428-21-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4428-19-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4428-16-0x0000000010000000-0x00000000101B6000-memory.dmp

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