Analysis
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max time kernel
150s -
max time network
128s -
platform
windows11-21h2_x64 -
resource
win11-20250411-en -
resource tags
arch:x64arch:x86image:win11-20250411-enlocale:en-usos:windows11-21h2-x64system -
submitted
16/04/2025, 12:12
Static task
static1
Behavioral task
behavioral1
Sample
1f3f731ad751c8e7002e7b77600f0ec96626a87315301240b4fd2f4a7bf938ea.exe
Resource
win10v2004-20250410-en
General
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Target
1f3f731ad751c8e7002e7b77600f0ec96626a87315301240b4fd2f4a7bf938ea.exe
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Size
692KB
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MD5
585a121b7e7f38d2d42b9e1ba5fb8369
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SHA1
13d392436388a52ce3d4d2c54fe2bf620d7a6910
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SHA256
1f3f731ad751c8e7002e7b77600f0ec96626a87315301240b4fd2f4a7bf938ea
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SHA512
6e7d6df3f67c2b07bf0f458296442aedebbde2f7225b48fbc21bb1a4a59fc0ca7ca95cd9e9b66eec9686c9a78f3a69bb019b2725e5eed360063aaba1a0d91b49
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SSDEEP
12288:yi2cAro2HQVWAHkFSq2hAWJYlMUtrxlyuJVRe8yLnv+ri:yi2Tro2H2HESq2eWJ6MQjySjyLqi
Malware Config
Signatures
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resource yara_rule behavioral2/memory/4720-8-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/4720-11-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/4720-7-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/5352-18-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/5352-17-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/5352-16-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/5252-24-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/5252-25-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/5252-30-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/5252-29-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/5352-31-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit -
Gh0st RAT payload 11 IoCs
resource yara_rule behavioral2/memory/4720-8-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/4720-11-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/4720-7-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/5352-18-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/5352-17-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/5352-16-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/5252-24-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/5252-25-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/5252-30-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/5252-29-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/5352-31-0x0000000010000000-0x00000000101B6000-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 TXPlatforn.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" TXPlatforn.exe -
Executes dropped EXE 3 IoCs
pid Process 4720 RVN.exe 5352 TXPlatforn.exe 5252 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/4720-6-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/4720-8-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/4720-11-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/4720-7-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/5352-14-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/5352-18-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/5352-17-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/5352-16-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/5252-24-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/5252-25-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/5252-30-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/5252-29-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/5352-31-0x0000000010000000-0x00000000101B6000-memory.dmp upx -
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 TXPlatforn.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 1f3f731ad751c8e7002e7b77600f0ec96626a87315301240b4fd2f4a7bf938ea.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RVN.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 3900 cmd.exe 3420 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 3420 PING.EXE -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 5252 TXPlatforn.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 4720 RVN.exe Token: SeLoadDriverPrivilege 5252 TXPlatforn.exe Token: 33 5252 TXPlatforn.exe Token: SeIncBasePriorityPrivilege 5252 TXPlatforn.exe Token: 33 5252 TXPlatforn.exe Token: SeIncBasePriorityPrivilege 5252 TXPlatforn.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1000 1f3f731ad751c8e7002e7b77600f0ec96626a87315301240b4fd2f4a7bf938ea.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1000 wrote to memory of 4720 1000 1f3f731ad751c8e7002e7b77600f0ec96626a87315301240b4fd2f4a7bf938ea.exe 78 PID 1000 wrote to memory of 4720 1000 1f3f731ad751c8e7002e7b77600f0ec96626a87315301240b4fd2f4a7bf938ea.exe 78 PID 1000 wrote to memory of 4720 1000 1f3f731ad751c8e7002e7b77600f0ec96626a87315301240b4fd2f4a7bf938ea.exe 78 PID 4720 wrote to memory of 3900 4720 RVN.exe 80 PID 4720 wrote to memory of 3900 4720 RVN.exe 80 PID 4720 wrote to memory of 3900 4720 RVN.exe 80 PID 5352 wrote to memory of 5252 5352 TXPlatforn.exe 81 PID 5352 wrote to memory of 5252 5352 TXPlatforn.exe 81 PID 5352 wrote to memory of 5252 5352 TXPlatforn.exe 81 PID 3900 wrote to memory of 3420 3900 cmd.exe 83 PID 3900 wrote to memory of 3420 3900 cmd.exe 83 PID 3900 wrote to memory of 3420 3900 cmd.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\1f3f731ad751c8e7002e7b77600f0ec96626a87315301240b4fd2f4a7bf938ea.exe"C:\Users\Admin\AppData\Local\Temp\1f3f731ad751c8e7002e7b77600f0ec96626a87315301240b4fd2f4a7bf938ea.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1000 -
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:4720 -
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⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:3900 -
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:3420
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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:5352 -
C:\Windows\SysWOW64\TXPlatforn.exeC:\Windows\SysWOW64\TXPlatforn.exe -acsi2⤵
- Drops file in Drivers directory
- Sets service image path in registry
- Executes dropped EXE
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
PID:5252
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Network
MITRE ATT&CK Enterprise v16
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
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Downloads
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Filesize
692KB
MD5585a121b7e7f38d2d42b9e1ba5fb8369
SHA113d392436388a52ce3d4d2c54fe2bf620d7a6910
SHA2561f3f731ad751c8e7002e7b77600f0ec96626a87315301240b4fd2f4a7bf938ea
SHA5126e7d6df3f67c2b07bf0f458296442aedebbde2f7225b48fbc21bb1a4a59fc0ca7ca95cd9e9b66eec9686c9a78f3a69bb019b2725e5eed360063aaba1a0d91b49
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Filesize
377KB
MD580ade1893dec9cab7f2e63538a464fcc
SHA1c06614da33a65eddb506db00a124a3fc3f5be02e
SHA25657a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd
SHA512fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4