Analysis
- max time kernel
150s - max time network
130s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
08/11/2026, 07:31
Static task
static1
Behavioral task
behavioral1
Sample
a18aab5bf59f7d585e411a9634bc2a661bb2ae99df357fc75f80b7c41a77e399.exe
Resource
win10v2004-20260911-en
General
- Target a18aab5bf59f7d585e411a9634bc2a661bb2ae99df357fc75f80b7c41a77e399.exe
- Size 676KB
- Sample261108-jchtwahe79
- SHA256 a18aab5bf59f7d585e411a9634bc2a661bb2ae99df357fc75f80b7c41a77e399
- MD5 55c438d4124e9c1c213d357cae164b6e
- SHA1 bb5b1408efd65be794087b166e18665e307b13b6
- SHA512 a7c5e83562d86bfcffd0bf1d1f7a9742f8d280590a25cfccb5d43c73502410f7f66eb214069ad3c4b053f532715193214e8752e8777c37489211e0e3e3b68366
- SSDEEP 12288:Zi2cAro2HQVWAHkFSq2hAWJYlMUtrxlyuJVRe8yY0dVL:Zi2Tro2H2HESq2eWJ6MQjySjyYoL
- TLSH T19CE4CF027D4984B2D1006133C911BA7516BC9E226FFD0997EBE0BE1FFCB45E5B53A826
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
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resource yara_rule behavioral2/memory/5588-8-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/5588-10-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/5588-9-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/2360-14-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/2360-16-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/2360-15-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/2360-18-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/3168-23-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/3168-24-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/3168-28-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/3168-29-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit - Gh0st RAT payload 11 IoCs
resource yara_rule behavioral2/memory/5588-8-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/5588-10-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/5588-9-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/2360-14-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/2360-16-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/2360-15-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/2360-18-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/3168-23-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/3168-24-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/3168-28-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/3168-29-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat - Drops file in Drivers directory 1 IoCs
description ioc Process File created C:\Windows\system32\drivers\QAssist.sys TXPlatforn.exe - Sets service image path in registry 3 TTPs 1 IoCs
This determines the executable launched when a service starts. It can be used to establish persistence.
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys" TXPlatforn.exe - Executes dropped EXE 3 IoCs
pid Process 5588 RVN.exe 2360 TXPlatforn.exe 3168 TXPlatforn.exe - Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\TXPlatforn.exe RVN.exe File opened for modification C:\Windows\SysWOW64\TXPlatforn.exe RVN.exe -
resource yara_rule behavioral2/memory/5588-8-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/5588-10-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/5588-7-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/5588-9-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/2360-14-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/2360-16-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/2360-15-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/2360-13-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/2360-18-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/3168-23-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/3168-24-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/3168-28-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/3168-29-0x0000000010000000-0x00000000101B6000-memory.dmp upx - Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
pid Process 2636 cmd.exe - Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname TXPlatforn.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain TXPlatforn.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 PING.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a18aab5bf59f7d585e411a9634bc2a661bb2ae99df357fc75f80b7c41a77e399.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RVN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language TXPlatforn.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe - System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 2636 cmd.exe 4660 PING.EXE - Runs ping.exe 1 TTPs 1 IoCs
pid Process 4660 PING.EXE - Suspicious behavior: LoadsDriver 1 IoCs
pid Process 3168 TXPlatforn.exe - Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 5588 RVN.exe Token: SeLoadDriverPrivilege 3168 TXPlatforn.exe Token: 33 3168 TXPlatforn.exe Token: SeIncBasePriorityPrivilege 3168 TXPlatforn.exe Token: 33 3168 TXPlatforn.exe Token: SeIncBasePriorityPrivilege 3168 TXPlatforn.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 5620 a18aab5bf59f7d585e411a9634bc2a661bb2ae99df357fc75f80b7c41a77e399.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 5620 wrote to memory of 5588 5620 a18aab5bf59f7d585e411a9634bc2a661bb2ae99df357fc75f80b7c41a77e399.exe 89 PID 5588 wrote to memory of 2636 5588 RVN.exe 92 PID 2360 wrote to memory of 3168 2360 TXPlatforn.exe 93 PID 2636 wrote to memory of 4660 2636 cmd.exe 95
Processes
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C:\Users\Admin\AppData\Local\Temp\a18aab5bf59f7d585e411a9634bc2a661bb2ae99df357fc75f80b7c41a77e399.exe"C:\Users\Admin\AppData\Local\Temp\a18aab5bf59f7d585e411a9634bc2a661bb2ae99df357fc75f80b7c41a77e399.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5620 -
C:\Users\Admin\AppData\Local\Temp\RVN.exeC:\Users\Admin\AppData\Local\Temp\\RVN.exe2⤵
- Executes dropped EXE
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5588 -
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\RVN.exe > nul3⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:2636 -
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:4660
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C:\Windows\SysWOW64\TXPlatforn.exeC:\Windows\SysWOW64\TXPlatforn.exe -auto1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2360 -
C:\Windows\SysWOW64\TXPlatforn.exeC:\Windows\SysWOW64\TXPlatforn.exe -acsi2⤵
- Drops file in Drivers directory
- Sets service image path in registry
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
PID:3168
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Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
- Size 676KB
- SHA256 a18aab5bf59f7d585e411a9634bc2a661bb2ae99df357fc75f80b7c41a77e399
- MD5 55c438d4124e9c1c213d357cae164b6e
- SHA1 bb5b1408efd65be794087b166e18665e307b13b6
- SHA512 a7c5e83562d86bfcffd0bf1d1f7a9742f8d280590a25cfccb5d43c73502410f7f66eb214069ad3c4b053f532715193214e8752e8777c37489211e0e3e3b68366
- SSDEEP 12288:Zi2cAro2HQVWAHkFSq2hAWJYlMUtrxlyuJVRe8yY0dVL:Zi2Tro2H2HESq2eWJ6MQjySjyYoL
- TLSH T19CE4CF027D4984B2D1006133C911BA7516BC9E226FFD0997EBE0BE1FFCB45E5B53A826
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\RVN.exe
- Size 377KB
- SHA256 57a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd
- MD5 80ade1893dec9cab7f2e63538a464fcc
- SHA1 c06614da33a65eddb506db00a124a3fc3f5be02e
- SHA512 fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4
- SSDEEP 6144:BEo7J1ixs4uVKE9rFEAHKThrBSq2hAzSM5mDo9lSJULHZqExlD2E1LxhJVwIe0Dy:Wo2HQVWAHkFSq2hAWJYlMUtrxlyuJVRq
- TLSH T13A841221EB1265A2D30BB0F0CE685F0688B953584C6D1D57EEB51E2D7D3A3EDE832D06
- MD5 SHA1 SHA512 SSDEEP TLSH