Analysis
- max time kernel
120s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system - submitted
07/01/2025, 13:44
Static task
static1
Behavioral task
behavioral1
Sample
9b04fd775ed3e774d7a649d7332087efce818f011387d948b47b1af9da99fd04.exe
Resource
win7-20241010-en
windows7-x64
21 signatures
150 seconds
General
- Target 9b04fd775ed3e774d7a649d7332087efce818f011387d948b47b1af9da99fd04.exe
- Size 1.7MB
- Sample250107-q13yaavrar
- SHA256 9b04fd775ed3e774d7a649d7332087efce818f011387d948b47b1af9da99fd04
- MD5 2b703c5c00841d1439afd2bfd7cb4a7e
- SHA1 c013b484287fc793cf06bc1b9d3a9016b7d7cb01
- SHA512 5a77690bd9fa9c48ac3119f61463f61ebfe0d8d3a34076387abfb45f350fa3d00d4ff68071032bbffaf681cd9a79b99297a73987e7bd088b70f536791fe6be83
- SSDEEP 24576:zM8wcsjBocoT3cgEeqroaV3NSPDo7gKVbZETckLZzzb78Qb:4SbfMhywSZ7B
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
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resource yara_rule behavioral2/memory/4440-1-0x0000000010000000-0x000000001019E000-memory.dmp purplefox_rootkit - Gh0st RAT payload 1 IoCs
resource yara_rule behavioral2/memory/4440-1-0x0000000010000000-0x000000001019E000-memory.dmp family_gh0strat - Gh0strat family
- Purplefox family
- Drops file in Drivers directory 1 IoCs
description ioc Process File created C:\Windows\system32\drivers\QAssist.sys Phxph.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" Phxph.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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation 9b04fd775ed3e774d7a649d7332087efce818f011387d948b47b1af9da99fd04.exe - Executes dropped EXE 1 IoCs
pid Process 3992 Phxph.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) \??\B: Phxph.exe File opened (read-only) \??\G: Phxph.exe File opened (read-only) \??\J: Phxph.exe File opened (read-only) \??\P: Phxph.exe File opened (read-only) \??\U: Phxph.exe File opened (read-only) \??\H: Phxph.exe File opened (read-only) \??\L: Phxph.exe File opened (read-only) \??\N: Phxph.exe File opened (read-only) \??\V: Phxph.exe File opened (read-only) \??\Y: Phxph.exe File opened (read-only) \??\Z: Phxph.exe File opened (read-only) \??\E: Phxph.exe File opened (read-only) \??\I: Phxph.exe File opened (read-only) \??\K: Phxph.exe File opened (read-only) \??\M: Phxph.exe File opened (read-only) \??\R: Phxph.exe File opened (read-only) \??\W: Phxph.exe File opened (read-only) \??\O: Phxph.exe File opened (read-only) \??\Q: Phxph.exe File opened (read-only) \??\S: Phxph.exe File opened (read-only) \??\T: Phxph.exe File opened (read-only) \??\X: Phxph.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 4 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 Phxph.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 9b04fd775ed3e774d7a649d7332087efce818f011387d948b47b1af9da99fd04.exe - System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 1516 cmd.exe 3672 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 Phxph.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz Phxph.exe - Runs ping.exe 1 TTPs 1 IoCs
pid Process 3672 PING.EXE - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe 3992 Phxph.exe - Suspicious behavior: LoadsDriver 1 IoCs
pid Process 3992 Phxph.exe - Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 4440 9b04fd775ed3e774d7a649d7332087efce818f011387d948b47b1af9da99fd04.exe Token: SeLoadDriverPrivilege 3992 Phxph.exe Token: 33 3992 Phxph.exe Token: SeIncBasePriorityPrivilege 3992 Phxph.exe Token: 33 3992 Phxph.exe Token: SeIncBasePriorityPrivilege 3992 Phxph.exe - Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 4440 wrote to memory of 3992 4440 9b04fd775ed3e774d7a649d7332087efce818f011387d948b47b1af9da99fd04.exe 83 PID 4440 wrote to memory of 3992 4440 9b04fd775ed3e774d7a649d7332087efce818f011387d948b47b1af9da99fd04.exe 83 PID 4440 wrote to memory of 3992 4440 9b04fd775ed3e774d7a649d7332087efce818f011387d948b47b1af9da99fd04.exe 83 PID 4440 wrote to memory of 1516 4440 9b04fd775ed3e774d7a649d7332087efce818f011387d948b47b1af9da99fd04.exe 84 PID 4440 wrote to memory of 1516 4440 9b04fd775ed3e774d7a649d7332087efce818f011387d948b47b1af9da99fd04.exe 84 PID 4440 wrote to memory of 1516 4440 9b04fd775ed3e774d7a649d7332087efce818f011387d948b47b1af9da99fd04.exe 84 PID 1516 wrote to memory of 3672 1516 cmd.exe 86 PID 1516 wrote to memory of 3672 1516 cmd.exe 86 PID 1516 wrote to memory of 3672 1516 cmd.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\9b04fd775ed3e774d7a649d7332087efce818f011387d948b47b1af9da99fd04.exe"C:\Users\Admin\AppData\Local\Temp\9b04fd775ed3e774d7a649d7332087efce818f011387d948b47b1af9da99fd04.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4440 -
C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phxph.exe"C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phxph.exe"2⤵
- Drops file in Drivers directory
- Sets service image path in registry
- Executes dropped EXE
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
PID:3992
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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\9B04FD~1.EXE > nul2⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:1516 -
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:3672
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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
- Path C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\Phxph.exe
- Size 1.7MB
- SHA256 9b04fd775ed3e774d7a649d7332087efce818f011387d948b47b1af9da99fd04
- MD5 2b703c5c00841d1439afd2bfd7cb4a7e
- SHA1 c013b484287fc793cf06bc1b9d3a9016b7d7cb01
- SHA512 5a77690bd9fa9c48ac3119f61463f61ebfe0d8d3a34076387abfb45f350fa3d00d4ff68071032bbffaf681cd9a79b99297a73987e7bd088b70f536791fe6be83
- SSDEEP 24576:zM8wcsjBocoT3cgEeqroaV3NSPDo7gKVbZETckLZzzb78Qb:4SbfMhywSZ7B
- MD5 SHA1 SHA512 SSDEEP