gh0strat | 9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230

Analysis

max time kernel
150s
max time network
154s
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, 12:27

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General

Target
9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.exe
Size 13.4MB
Sample240526-pm2bvsce2y
SHA256 9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230
MD5 6388516e639bfc882cf3d4578ccf7061
SHA1 55763e840fd3d4e2b51499425068e117e002f60c
SHA512 d503619b970d492977a88c224f998d92deeab02c994805091be154b9c7950b1da3c30beb090ceddf5afee7b78a4f076d46f2e3eac1dcdfaab0571917b62b36a9
SSDEEP 196608:bKXbeO72DwEI3CcdLsnSi45uAdGEHdjJVYrg:w7eI1LsSi4c9EHdjh
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/4520-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4520-19-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4520-23-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1492-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1492-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3936-37-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3936-43-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3936-45-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral2/files/0x000700000002340e-5.dat	family_gh0strat
behavioral2/memory/4520-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4520-19-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4520-23-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1492-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1492-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3936-37-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3936-43-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3936-45-0x0000000010000000-0x00000000101B6000-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\\240601406.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
1600	R.exe
4520	N.exe
1492	TXPlatfor.exe
3936	TXPlatfor.exe
3648	HD_9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.exe
4688	Remote Data.exe

Loads dropped DLL 3 IoCs

pid	Process
1600	R.exe
1180	svchost.exe
4688	Remote Data.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4520-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4520-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4520-23-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4520-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1492-26-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1492-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1492-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3936-37-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3936-43-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3936-45-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\240601406.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

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.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
2260	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5040	9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.exe
5040	9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
3936	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4520	N.exe
Token: SeLoadDriverPrivilege	3936	TXPlatfor.exe
Token: 33	3936	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	3936	TXPlatfor.exe
Token: 33	3936	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	3936	TXPlatfor.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
3648	HD_9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.exe
3648	HD_9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.exe
3648	HD_9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
3648	HD_9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.exe
3648	HD_9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.exe
3648	HD_9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
5040	9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.exe
5040	9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.exe
3648	HD_9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.exe
3648	HD_9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 5040 wrote to memory of 1600	5040	9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.exe	83
PID 5040 wrote to memory of 1600	5040	9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.exe	83
PID 5040 wrote to memory of 1600	5040	9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.exe	83
PID 5040 wrote to memory of 4520	5040	9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.exe	86
PID 5040 wrote to memory of 4520	5040	9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.exe	86
PID 5040 wrote to memory of 4520	5040	9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.exe	86
PID 4520 wrote to memory of 1260	4520	N.exe	89
PID 4520 wrote to memory of 1260	4520	N.exe	89
PID 4520 wrote to memory of 1260	4520	N.exe	89
PID 1492 wrote to memory of 3936	1492	TXPlatfor.exe	90
PID 1492 wrote to memory of 3936	1492	TXPlatfor.exe	90
PID 1492 wrote to memory of 3936	1492	TXPlatfor.exe	90
PID 5040 wrote to memory of 3648	5040	9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.exe	92
PID 5040 wrote to memory of 3648	5040	9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.exe	92
PID 5040 wrote to memory of 3648	5040	9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.exe	92
PID 1260 wrote to memory of 2260	1260	cmd.exe	93
PID 1260 wrote to memory of 2260	1260	cmd.exe	93
PID 1260 wrote to memory of 2260	1260	cmd.exe	93
PID 1180 wrote to memory of 4688	1180	svchost.exe	97
PID 1180 wrote to memory of 4688	1180	svchost.exe	97
PID 1180 wrote to memory of 4688	1180	svchost.exe	97

C:\Users\Admin\AppData\Local\Temp\9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.exe
"C:\Users\Admin\AppData\Local\Temp\9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.exe"
1⤵
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5040
- 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:1600
- 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:4520
- - 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:1260
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:2260
- C:\Users\Admin\AppData\Local\Temp\HD_9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.exe
  C:\Users\Admin\AppData\Local\Temp\HD_9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:3648

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:1512

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:1180
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240601406.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:4688

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1492
- 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:3936

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_9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.exe

Path C:\Users\Admin\AppData\Local\Temp\HD_9db23a26e92b409d1c3e29b3babf9daab2e4dc4cc57d5b4a705af6d0e862d230.exe
Size 10.8MB
SHA256 383696fef46ddd8833a0e1deb72a148159b6c481a96d40df2c6ea1518e54c77d
MD5 21e7f901900ea7b3739d9329d1ae85f3
SHA1 ddcdcfef31d94efbb1210a3ecde360fd4dba0c58
SHA512 73cae1776bb6689ee2533dce75763a9e6accff4243673c60f1d06a1b4c725503b82881248c1d0c5756fea442f531d585194fe1699c700e891924b6bd84e05f9d
SSDEEP 98304:bzALtwzpdY5RwE34LzYLcdLQsyHHVwKt0C4AbTm9uALfprsQ6EooKidtBJBAUZLl:wDwEI3CcdLsnSi45uAdGEHdjJVYrg
MD5 SHA1 SHA512 SSDEEP

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HD_X.dat

Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Size 2.6MB
SHA256 d14f92e7bd68fe4e0b6101cf971a1625a570de67494c726693bcdd2354b721ad
MD5 86d5ab3335cc6074443b32322550cc97
SHA1 77d2efe7744c118f98d44a836c97c8625b99f7be
SHA512 45a61d1d83c5fb3115637a009156d14778af745385f199e674b4641f97c9ac28d57bf3f79f37b8d80a4445bae29ade8157abf7c135e1ae4f49132254d8545a47
SSDEEP 49152:OCwsbCANnKXferL7Vwe/Gg0P+WhZQeVa7:pws2ANnKXOaeOgmhZPa7
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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240601406.txt

Path C:\Windows\SysWOW64\240601406.txt
Size 899KB
SHA256 5a9804f829ee9a895765c1c2dc09838b09be935ef5f24c8a92624932e5143832
MD5 9723f116e910fbe3cf8b11ca695dc6d6
SHA1 3b0e548e0af931fae1b0d2a7d8459abe0ebc462c
SHA512 3d8be2f019c6ab3b044cee6dd29edaf90dc78428bbd4d2de56428846277470518a8d4ec5a375734bf468159b75706bd2f7b39ffce7f310750fef64946f3025f9
SSDEEP 24576:7V2bG+2gMir4fgt7ibhRM5QhKehFdMtRj7nH1PXf:7wqd87Vf
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/1492-29-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/1492-26-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/1492-28-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3936-43-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3936-37-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3936-45-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4520-17-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4520-23-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4520-19-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4520-20-0x0000000010000000-0x00000000101B6000-memory.dmp

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