Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
29-12-2024 06:49
Behavioral task
behavioral1
Sample
b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe
Resource
win7-20240903-en
General
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Target
b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe
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Size
1.2MB
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MD5
5dfb2a5a405f4018b0ba8eb4b4d69f6d
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SHA1
e87e21e09d1988f6284b00cfc07a917646586f12
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SHA256
b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff
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SHA512
ab3e13b22e19f87a1e172d12f48964f64e823f80692ed3a5657f6402f5c556f300da7f98db411856a84fb9153451f07e4f8201a25c149c0ef4e3b6c52da65ea8
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SSDEEP
24576:HovxCwgMBqHO5ZdYXOp0nQrXctTfK+d+MrTXowFlw57XYBwJtiN:WIwgMEuy+inDfp3/XoCw57XYBwKN
Malware Config
Signatures
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resource yara_rule behavioral2/memory/4212-30-0x0000000010000000-0x00000000101BA000-memory.dmp purplefox_rootkit behavioral2/memory/4212-31-0x0000000010000000-0x00000000101BA000-memory.dmp purplefox_rootkit behavioral2/memory/320-39-0x0000000010000000-0x00000000101BA000-memory.dmp purplefox_rootkit behavioral2/memory/320-38-0x0000000010000000-0x00000000101BA000-memory.dmp purplefox_rootkit behavioral2/memory/1256-49-0x0000000010000000-0x00000000101BA000-memory.dmp purplefox_rootkit behavioral2/memory/1256-52-0x0000000010000000-0x00000000101BA000-memory.dmp purplefox_rootkit behavioral2/memory/1256-54-0x0000000010000000-0x00000000101BA000-memory.dmp purplefox_rootkit -
Gh0st RAT payload 8 IoCs
resource yara_rule behavioral2/files/0x0007000000023c95-17.dat family_gh0strat behavioral2/memory/4212-30-0x0000000010000000-0x00000000101BA000-memory.dmp family_gh0strat behavioral2/memory/4212-31-0x0000000010000000-0x00000000101BA000-memory.dmp family_gh0strat behavioral2/memory/320-39-0x0000000010000000-0x00000000101BA000-memory.dmp family_gh0strat behavioral2/memory/320-38-0x0000000010000000-0x00000000101BA000-memory.dmp family_gh0strat behavioral2/memory/1256-49-0x0000000010000000-0x00000000101BA000-memory.dmp family_gh0strat behavioral2/memory/1256-52-0x0000000010000000-0x00000000101BA000-memory.dmp family_gh0strat behavioral2/memory/1256-54-0x0000000010000000-0x00000000101BA000-memory.dmp family_gh0strat -
Gh0strat family
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Purplefox family
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Drops file in Drivers directory 1 IoCs
description ioc Process File created C:\Windows\system32\drivers\QAssist.sys Ghiya.exe -
Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Ö÷¶¯·ÀÓù·þÎñÄ£¿é\Parameters\ServiceDll = "C:\\Windows\\system32\\240630718.txt" AK47.exe -
Sets service image path in registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys" Ghiya.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe -
Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\win.lnk b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe -
Executes dropped EXE 6 IoCs
pid Process 1464 AK47.exe 4080 AK47.exe 4212 AK74.exe 320 Ghiya.exe 1256 Ghiya.exe 1772 Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe -
Loads dropped DLL 3 IoCs
pid Process 1464 AK47.exe 3532 svchost.exe 1772 Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe -
resource yara_rule behavioral2/memory/4532-0-0x0000000000400000-0x0000000000760000-memory.dmp vmprotect behavioral2/memory/4532-1-0x0000000000400000-0x0000000000760000-memory.dmp vmprotect behavioral2/files/0x0008000000023c91-61.dat vmprotect behavioral2/memory/4532-71-0x0000000000400000-0x0000000000760000-memory.dmp vmprotect behavioral2/memory/4532-74-0x0000000000400000-0x0000000000760000-memory.dmp vmprotect behavioral2/memory/4532-77-0x0000000000400000-0x0000000000760000-memory.dmp vmprotect behavioral2/memory/4532-81-0x0000000000400000-0x0000000000760000-memory.dmp vmprotect behavioral2/memory/4532-84-0x0000000000400000-0x0000000000760000-memory.dmp vmprotect behavioral2/memory/4532-87-0x0000000000400000-0x0000000000760000-memory.dmp vmprotect behavioral2/memory/4532-90-0x0000000000400000-0x0000000000760000-memory.dmp vmprotect -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\360safo = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\svchcst.exe" b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\ini.ini AK47.exe File created C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe svchost.exe File opened for modification C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe svchost.exe File created C:\Windows\SysWOW64\Ghiya.exe AK74.exe File opened for modification C:\Windows\SysWOW64\Ghiya.exe AK74.exe File created C:\Windows\SysWOW64\240630718.txt AK47.exe File created C:\Windows\SysWOW64\240630718.txt AK47.exe -
resource yara_rule behavioral2/memory/4212-30-0x0000000010000000-0x00000000101BA000-memory.dmp upx behavioral2/memory/4212-31-0x0000000010000000-0x00000000101BA000-memory.dmp upx behavioral2/memory/4212-28-0x0000000010000000-0x00000000101BA000-memory.dmp upx behavioral2/memory/320-36-0x0000000010000000-0x00000000101BA000-memory.dmp upx behavioral2/memory/320-39-0x0000000010000000-0x00000000101BA000-memory.dmp upx behavioral2/memory/320-38-0x0000000010000000-0x00000000101BA000-memory.dmp upx behavioral2/memory/1256-49-0x0000000010000000-0x00000000101BA000-memory.dmp upx behavioral2/memory/1256-52-0x0000000010000000-0x00000000101BA000-memory.dmp upx behavioral2/memory/1256-54-0x0000000010000000-0x00000000101BA000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 11 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WScript.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AK47.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PING.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AK47.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AK74.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Ghiya.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WScript.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 1636 cmd.exe 1316 PING.EXE -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000_Classes\Local Settings b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 1316 PING.EXE -
Suspicious behavior: EnumeratesProcesses 16 IoCs
pid Process 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 1256 Ghiya.exe -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 4212 AK74.exe Token: SeLoadDriverPrivilege 1256 Ghiya.exe Token: 33 1256 Ghiya.exe Token: SeIncBasePriorityPrivilege 1256 Ghiya.exe Token: 33 1256 Ghiya.exe Token: SeIncBasePriorityPrivilege 1256 Ghiya.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe -
Suspicious use of WriteProcessMemory 27 IoCs
description pid Process procid_target PID 4532 wrote to memory of 4080 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 82 PID 4532 wrote to memory of 4080 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 82 PID 4532 wrote to memory of 4080 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 82 PID 4532 wrote to memory of 1464 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 83 PID 4532 wrote to memory of 1464 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 83 PID 4532 wrote to memory of 1464 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 83 PID 4532 wrote to memory of 4212 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 86 PID 4532 wrote to memory of 4212 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 86 PID 4532 wrote to memory of 4212 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 86 PID 4212 wrote to memory of 1636 4212 AK74.exe 88 PID 4212 wrote to memory of 1636 4212 AK74.exe 88 PID 4212 wrote to memory of 1636 4212 AK74.exe 88 PID 320 wrote to memory of 1256 320 Ghiya.exe 89 PID 320 wrote to memory of 1256 320 Ghiya.exe 89 PID 320 wrote to memory of 1256 320 Ghiya.exe 89 PID 1636 wrote to memory of 1316 1636 cmd.exe 91 PID 1636 wrote to memory of 1316 1636 cmd.exe 91 PID 1636 wrote to memory of 1316 1636 cmd.exe 91 PID 4532 wrote to memory of 4308 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 92 PID 4532 wrote to memory of 4308 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 92 PID 4532 wrote to memory of 4308 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 92 PID 4532 wrote to memory of 1980 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 93 PID 4532 wrote to memory of 1980 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 93 PID 4532 wrote to memory of 1980 4532 b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe 93 PID 3532 wrote to memory of 1772 3532 svchost.exe 95 PID 3532 wrote to memory of 1772 3532 svchost.exe 95 PID 3532 wrote to memory of 1772 3532 svchost.exe 95
Processes
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C:\Users\Admin\AppData\Local\Temp\b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe"C:\Users\Admin\AppData\Local\Temp\b91f95703f68975040a5cf91849095534101d15f181f860697ab10198c2a60ff.exe"1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4532 -
C:\Users\Admin\AppData\Local\Temp\AK47.exe"C:\Users\Admin\AppData\Local\Temp\AK47.exe"2⤵
- Executes dropped EXE
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
PID:4080
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C:\Users\Admin\AppData\Local\Temp\AK47.exeC:\Users\Admin\AppData\Local\Temp\\AK47.exe2⤵
- Server Software Component: Terminal Services DLL
- Executes dropped EXE
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
PID:1464
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C:\Users\Admin\AppData\Local\Temp\AK74.exeC:\Users\Admin\AppData\Local\Temp\\AK74.exe2⤵
- Executes dropped EXE
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4212 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Users\Admin\AppData\Local\Temp\AK74.exe > nul3⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:1636 -
C:\Windows\SysWOW64\PING.EXEping -n 2 127.0.0.14⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:1316
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs"2⤵
- System Location Discovery: System Language Discovery
PID:4308
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs"2⤵
- System Location Discovery: System Language Discovery
PID:1980
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"1⤵PID:376
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3532 -
C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exeC:\Windows\system32\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe "c:\windows\system32\240630718.txt",MainThread2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:1772
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C:\Windows\SysWOW64\Ghiya.exeC:\Windows\SysWOW64\Ghiya.exe -auto1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:320 -
C:\Windows\SysWOW64\Ghiya.exeC:\Windows\SysWOW64\Ghiya.exe -acsi2⤵
- Drops file in Drivers directory
- Sets service image path in registry
- Executes dropped EXE
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
PID:1256
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Server Software Component
1Terminal Services DLL
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Replay Monitor
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Downloads
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Filesize
91KB
MD5423eb994ed553294f8a6813619b8da87
SHA1eca6a16ccd13adcfc27bc1041ddef97ec8081255
SHA256050b4f2d5ae8eaecd414318dc8e222a56f169626da6ca8feb7edd78e8b1f0218
SHA512fab0a9af8031c242c486de373df7277c8b0e39f7a0c9c2ac2e385dbd3ea67be16e91b128287634f76131e5264149ab1b452cd21df4c4895e8c4efc8d8cf99095
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Filesize
400KB
MD5b0998aa7d5071d33daa5b60b9c3c9735
SHA19365a1ff0c6de244d6f36c8d84072cc916665d3c
SHA2563080b6bb456564899b0d99d4131bd6a0b284d31f7d80ef773e4872d94048d49a
SHA512308c13cda9fea39b980ae686f44afd9090e9cb8970fffc4436320e0d09a31aee5e656914e0121fe888098a14c52749716fa04980396fd6ac70a88c11cbb6b850
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Filesize
92B
MD529ce53e2a4a446614ccc8d64d346bde4
SHA139a7aa5cc1124842aa0c25abb16ea94452125cbe
SHA25656225be6838bc6e93ea215891eacf28844ae27a9f8b2b29bf19d3a8c2b1f58df
SHA512b2c5a2708c427171a5715801f8ea733ffe88d73aaaaf59c5c752ea32cbe7aae8526cc26eabe84ad5043174c0c69b1d6b15a9fb125c15accfac3462d5d08a0faa
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Filesize
753B
MD524f4b861b41f9c4060429b76dab11000
SHA1c6129f226312ba305941a789b4afc621129e31ad
SHA256c5580b25f62303fb5641cda69e0bf28ef8eb216797d321d7ae1e714eb62cdd48
SHA51209b9d7f8a5241c9c3c3d8bb54332d3b375daa44694dcd582d185b1c518624360e711cf27c392c9a0ade06699024c85bb346eb8413fbc8ee090cc7407f284ffef
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Filesize
1.2MB
MD5cee88a84e5ecdb9b2ee0fafc26fa7ebf
SHA193f14e4064de3f480a8e1fe337fbc7b286e0faf1
SHA2563e17fb27cb3de2d814b436fb795fb28da75a4d8357de562c3f08d1574f661624
SHA512fd098710a9dcee8eac541120cd014ead175cd505673e5b74786daa182ef58ed39c3e94ff36e26f2ebb61e6a8cd75f70a86758fcb7a8c1b7b9aa7ff2a7d14097b
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Filesize
49KB
MD55e121fde2b06fa9e6000868da2125567
SHA18a52444e5857092057ba0198bc737bdc8e1510c0
SHA256a83e7ac6d30dad6fdf33ed4dc050ef1afedc9555df708c1ffe918db60064ec47
SHA5127a6a07884fc078a9eda59d13fe7980c8b2aee091a77f5b17d7eaa559fc9f0bc0dddc637c683be390be0a9f07b74591b99c70ba32bd5411422f771a017b729bff
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Filesize
60KB
MD5889b99c52a60dd49227c5e485a016679
SHA18fa889e456aa646a4d0a4349977430ce5fa5e2d7
SHA2566cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
SHA51208933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641