Analysis
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max time kernel
148s -
max time network
137s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
12-12-2024 23:32
Static task
static1
Behavioral task
behavioral1
Sample
76a236349c0820e4dfba81e3382e50833ee238452c0c271d6a0cf83b4fcca235.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
76a236349c0820e4dfba81e3382e50833ee238452c0c271d6a0cf83b4fcca235.exe
Resource
win10v2004-20241007-en
General
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Target
76a236349c0820e4dfba81e3382e50833ee238452c0c271d6a0cf83b4fcca235.exe
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Size
1.4MB
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MD5
42eb813b6d1d942487977b2d1c99849d
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SHA1
ed176942204d852d66b1b0401431be6b6233325a
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SHA256
76a236349c0820e4dfba81e3382e50833ee238452c0c271d6a0cf83b4fcca235
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SHA512
13784b32ff6dd7b8a699251a30a9d75e0e967d447a01e1ef357596652ff26a8c5a5a812db2d8d08c581f9d9f1f071ed28030546e7b2a57095d9e00927bfbd0f9
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SSDEEP
24576:MXU1T7iVITXAY9Pl4+va/61tvjnqZ3D6iyzwQngZqIVC9nSJhTNJDINp4X17uCD/:zTxDva/6nj3LbnqVVSSvINp4ks
Malware Config
Signatures
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resource yara_rule behavioral1/memory/2840-11203-0x0000000000400000-0x000000000062A000-memory.dmp purplefox_rootkit behavioral1/memory/8324-16688-0x0000000000400000-0x000000000062A000-memory.dmp purplefox_rootkit behavioral1/memory/14008-25394-0x0000000000400000-0x000000000062A000-memory.dmp purplefox_rootkit -
Gh0st RAT payload 3 IoCs
resource yara_rule behavioral1/memory/2840-11203-0x0000000000400000-0x000000000062A000-memory.dmp family_gh0strat behavioral1/memory/8324-16688-0x0000000000400000-0x000000000062A000-memory.dmp family_gh0strat behavioral1/memory/14008-25394-0x0000000000400000-0x000000000062A000-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 Vnfvn.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" Vnfvn.exe -
Deletes itself 1 IoCs
pid Process 13988 cmd.exe -
Executes dropped EXE 2 IoCs
pid Process 8324 Vnfvn.exe 14008 Vnfvn.exe -
Enumerates connected drives 3 TTPs 22 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\O: Vnfvn.exe File opened (read-only) \??\V: Vnfvn.exe File opened (read-only) \??\I: Vnfvn.exe File opened (read-only) \??\M: Vnfvn.exe File opened (read-only) \??\R: Vnfvn.exe File opened (read-only) \??\T: Vnfvn.exe File opened (read-only) \??\Z: Vnfvn.exe File opened (read-only) \??\E: Vnfvn.exe File opened (read-only) \??\G: Vnfvn.exe File opened (read-only) \??\K: Vnfvn.exe File opened (read-only) \??\L: Vnfvn.exe File opened (read-only) \??\N: Vnfvn.exe File opened (read-only) \??\S: Vnfvn.exe File opened (read-only) \??\H: Vnfvn.exe File opened (read-only) \??\J: Vnfvn.exe File opened (read-only) \??\Q: Vnfvn.exe File opened (read-only) \??\U: Vnfvn.exe File opened (read-only) \??\W: Vnfvn.exe File opened (read-only) \??\X: Vnfvn.exe File opened (read-only) \??\Y: Vnfvn.exe File opened (read-only) \??\B: Vnfvn.exe File opened (read-only) \??\P: Vnfvn.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\Vnfvn.exe 76a236349c0820e4dfba81e3382e50833ee238452c0c271d6a0cf83b4fcca235.exe File opened for modification C:\Windows\SysWOW64\Vnfvn.exe 76a236349c0820e4dfba81e3382e50833ee238452c0c271d6a0cf83b4fcca235.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 40 IoCs
pid Process 2840 76a236349c0820e4dfba81e3382e50833ee238452c0c271d6a0cf83b4fcca235.exe 2840 76a236349c0820e4dfba81e3382e50833ee238452c0c271d6a0cf83b4fcca235.exe 8324 Vnfvn.exe 8324 Vnfvn.exe 2840 76a236349c0820e4dfba81e3382e50833ee238452c0c271d6a0cf83b4fcca235.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe -
System Location Discovery: System Language Discovery 1 TTPs 5 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 76a236349c0820e4dfba81e3382e50833ee238452c0c271d6a0cf83b4fcca235.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Vnfvn.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 Vnfvn.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 13988 cmd.exe 14056 PING.EXE -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 Vnfvn.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz Vnfvn.exe -
Modifies data under HKEY_USERS 12 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections Vnfvn.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings Vnfvn.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" Vnfvn.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 Vnfvn.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum Vnfvn.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft Vnfvn.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings Vnfvn.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum\Version = "7" Vnfvn.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 Vnfvn.exe Key created \REGISTRY\USER\.DEFAULT\Software Vnfvn.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie Vnfvn.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum Vnfvn.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 14056 PING.EXE -
Suspicious behavior: EnumeratesProcesses 33 IoCs
pid Process 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe 14008 Vnfvn.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 14008 Vnfvn.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 2840 76a236349c0820e4dfba81e3382e50833ee238452c0c271d6a0cf83b4fcca235.exe Token: SeLoadDriverPrivilege 14008 Vnfvn.exe Token: 33 14008 Vnfvn.exe Token: SeIncBasePriorityPrivilege 14008 Vnfvn.exe Token: 33 14008 Vnfvn.exe Token: SeIncBasePriorityPrivilege 14008 Vnfvn.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2840 wrote to memory of 13988 2840 76a236349c0820e4dfba81e3382e50833ee238452c0c271d6a0cf83b4fcca235.exe 31 PID 2840 wrote to memory of 13988 2840 76a236349c0820e4dfba81e3382e50833ee238452c0c271d6a0cf83b4fcca235.exe 31 PID 2840 wrote to memory of 13988 2840 76a236349c0820e4dfba81e3382e50833ee238452c0c271d6a0cf83b4fcca235.exe 31 PID 2840 wrote to memory of 13988 2840 76a236349c0820e4dfba81e3382e50833ee238452c0c271d6a0cf83b4fcca235.exe 31 PID 8324 wrote to memory of 14008 8324 Vnfvn.exe 32 PID 8324 wrote to memory of 14008 8324 Vnfvn.exe 32 PID 8324 wrote to memory of 14008 8324 Vnfvn.exe 32 PID 8324 wrote to memory of 14008 8324 Vnfvn.exe 32 PID 13988 wrote to memory of 14056 13988 cmd.exe 34 PID 13988 wrote to memory of 14056 13988 cmd.exe 34 PID 13988 wrote to memory of 14056 13988 cmd.exe 34 PID 13988 wrote to memory of 14056 13988 cmd.exe 34
Processes
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C:\Users\Admin\AppData\Local\Temp\76a236349c0820e4dfba81e3382e50833ee238452c0c271d6a0cf83b4fcca235.exe"C:\Users\Admin\AppData\Local\Temp\76a236349c0820e4dfba81e3382e50833ee238452c0c271d6a0cf83b4fcca235.exe"1⤵
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2840 -
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\76A236~1.EXE > nul2⤵
- Deletes itself
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:13988 -
C:\Windows\SysWOW64\PING.EXEping -n 2 127.0.0.13⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:14056
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C:\Windows\SysWOW64\Vnfvn.exeC:\Windows\SysWOW64\Vnfvn.exe -auto1⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:8324 -
C:\Windows\SysWOW64\Vnfvn.exeC:\Windows\SysWOW64\Vnfvn.exe -acsi2⤵
- Drops file in Drivers directory
- Sets service image path in registry
- Executes dropped EXE
- Enumerates connected drives
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
PID:14008
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Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
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Downloads
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Filesize
1.4MB
MD542eb813b6d1d942487977b2d1c99849d
SHA1ed176942204d852d66b1b0401431be6b6233325a
SHA25676a236349c0820e4dfba81e3382e50833ee238452c0c271d6a0cf83b4fcca235
SHA51213784b32ff6dd7b8a699251a30a9d75e0e967d447a01e1ef357596652ff26a8c5a5a812db2d8d08c581f9d9f1f071ed28030546e7b2a57095d9e00927bfbd0f9