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Analysis
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max time kernel
150s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
03/12/2024, 15:54
Static task
static1
Behavioral task
behavioral1
Sample
81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe
Resource
win7-20240708-en
General
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Target
81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe
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Size
4.5MB
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MD5
506499c3920b5a37fb0278e902bbf166
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SHA1
1ee4f1a5ce27ba60c8817d00160c2a64435c2887
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SHA256
81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2
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SHA512
b65a6802d3b6453a403829e346b451629a87580d1faf99d8699fdc593857834893a1ccf5434de800e7ffb10307a5e9aa3e6cb33a7446a8bc8f553bf259010174
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SSDEEP
49152:kCwsbCANnKXferL7Vwe/Gg0P+WhvgWWHB5+0vY3u6c20LAonnOeJ9EWWf:nws2ANnKXOaeOgmh1WHBk0vjAoOe9Wf
Malware Config
Signatures
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resource yara_rule behavioral1/memory/2356-20-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral1/memory/2356-21-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral1/memory/2756-43-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral1/memory/2756-52-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral1/memory/2756-53-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit -
Gh0st RAT payload 6 IoCs
resource yara_rule behavioral1/files/0x0008000000015fe0-6.dat family_gh0strat behavioral1/memory/2356-20-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral1/memory/2356-21-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral1/memory/2756-43-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral1/memory/2756-52-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral1/memory/2756-53-0x0000000010000000-0x00000000101B6000-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 TXPlatfor.exe -
Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Remote Data\Parameters\ServiceDll = "C:\\Windows\\system32\\259437603.txt" R.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" TXPlatfor.exe -
Executes dropped EXE 6 IoCs
pid Process 2388 R.exe 2356 N.exe 2780 TXPlatfor.exe 2756 TXPlatfor.exe 2832 HD_81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe 2440 Remote Data.exe -
Loads dropped DLL 8 IoCs
pid Process 1700 81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe 2388 R.exe 1412 svchost.exe 1700 81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe 2780 TXPlatfor.exe 1700 81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe 1412 svchost.exe 2440 Remote Data.exe -
Drops file in System32 directory 6 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\ini.ini R.exe File created C:\Windows\SysWOW64\Remote Data.exe svchost.exe File opened for modification C:\Windows\SysWOW64\Remote Data.exe svchost.exe File created C:\Windows\SysWOW64\TXPlatfor.exe N.exe File opened for modification C:\Windows\SysWOW64\TXPlatfor.exe N.exe File created C:\Windows\SysWOW64\259437603.txt R.exe -
resource yara_rule behavioral1/memory/2356-20-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral1/memory/2356-21-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral1/memory/2356-18-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral1/memory/2756-43-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral1/memory/2756-52-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral1/memory/2756-53-0x0000000010000000-0x00000000101B6000-memory.dmp upx -
System Location Discovery: System Language Discovery 1 TTPs 8 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 R.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language TXPlatfor.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 Remote Data.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 1552 cmd.exe 2860 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 2860 PING.EXE -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1700 81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 2756 TXPlatfor.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 2356 N.exe Token: SeLoadDriverPrivilege 2756 TXPlatfor.exe Token: 33 2756 TXPlatfor.exe Token: SeIncBasePriorityPrivilege 2756 TXPlatfor.exe Token: 33 2756 TXPlatfor.exe Token: SeIncBasePriorityPrivilege 2756 TXPlatfor.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1700 81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe 1700 81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe -
Suspicious use of WriteProcessMemory 34 IoCs
description pid Process procid_target PID 1700 wrote to memory of 2388 1700 81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe 30 PID 1700 wrote to memory of 2388 1700 81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe 30 PID 1700 wrote to memory of 2388 1700 81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe 30 PID 1700 wrote to memory of 2388 1700 81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe 30 PID 1700 wrote to memory of 2356 1700 81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe 33 PID 1700 wrote to memory of 2356 1700 81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe 33 PID 1700 wrote to memory of 2356 1700 81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe 33 PID 1700 wrote to memory of 2356 1700 81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe 33 PID 1700 wrote to memory of 2356 1700 81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe 33 PID 1700 wrote to memory of 2356 1700 81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe 33 PID 1700 wrote to memory of 2356 1700 81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe 33 PID 2356 wrote to memory of 1552 2356 N.exe 35 PID 2356 wrote to memory of 1552 2356 N.exe 35 PID 2356 wrote to memory of 1552 2356 N.exe 35 PID 2356 wrote to memory of 1552 2356 N.exe 35 PID 2780 wrote to memory of 2756 2780 TXPlatfor.exe 37 PID 2780 wrote to memory of 2756 2780 TXPlatfor.exe 37 PID 2780 wrote to memory of 2756 2780 TXPlatfor.exe 37 PID 2780 wrote to memory of 2756 2780 TXPlatfor.exe 37 PID 2780 wrote to memory of 2756 2780 TXPlatfor.exe 37 PID 2780 wrote to memory of 2756 2780 TXPlatfor.exe 37 PID 2780 wrote to memory of 2756 2780 TXPlatfor.exe 37 PID 1700 wrote to memory of 2832 1700 81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe 38 PID 1700 wrote to memory of 2832 1700 81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe 38 PID 1700 wrote to memory of 2832 1700 81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe 38 PID 1700 wrote to memory of 2832 1700 81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe 38 PID 1552 wrote to memory of 2860 1552 cmd.exe 39 PID 1552 wrote to memory of 2860 1552 cmd.exe 39 PID 1552 wrote to memory of 2860 1552 cmd.exe 39 PID 1552 wrote to memory of 2860 1552 cmd.exe 39 PID 1412 wrote to memory of 2440 1412 svchost.exe 41 PID 1412 wrote to memory of 2440 1412 svchost.exe 41 PID 1412 wrote to memory of 2440 1412 svchost.exe 41 PID 1412 wrote to memory of 2440 1412 svchost.exe 41
Processes
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C:\Users\Admin\AppData\Local\Temp\81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe"C:\Users\Admin\AppData\Local\Temp\81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1700 -
C:\Users\Admin\AppData\Local\Temp\R.exeC:\Users\Admin\AppData\Local\Temp\\R.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:2388
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C:\Users\Admin\AppData\Local\Temp\N.exeC:\Users\Admin\AppData\Local\Temp\\N.exe2⤵
- Executes dropped EXE
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2356 -
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\N.exe > nul3⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:1552 -
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:2860
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C:\Users\Admin\AppData\Local\Temp\HD_81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exeC:\Users\Admin\AppData\Local\Temp\HD_81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe2⤵
- Executes dropped EXE
PID:2832
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe -k "Remote Data"1⤵PID:1712
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe -k "Remote Data"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1412 -
C:\Windows\SysWOW64\Remote Data.exe"C:\Windows\system32\Remote Data.exe" "c:\windows\system32\259437603.txt",MainThread2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:2440
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C:\Windows\SysWOW64\TXPlatfor.exeC:\Windows\SysWOW64\TXPlatfor.exe -auto1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2780 -
C:\Windows\SysWOW64\TXPlatfor.exeC:\Windows\SysWOW64\TXPlatfor.exe -acsi2⤵
- Drops file in Drivers directory
- Sets service image path in registry
- Executes dropped EXE
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
PID:2756
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Server Software Component
1Terminal Services DLL
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
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Downloads
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Filesize
377KB
MD54a36a48e58829c22381572b2040b6fe0
SHA1f09d30e44ff7e3f20a5de307720f3ad148c6143b
SHA2563de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8
SHA5125d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0
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Filesize
3.3MB
MD526e7a3f0a10e7e81b01c413749e3475e
SHA108d05a436fd4aaa6074af829e5691bbd5d0d6804
SHA25610ab4e2dd353937702432c8e2d30eecbe3592924e3a1763d9f984824510c8152
SHA512341a3f81680f9dd78926d2fa6907c4d83fccd5af5b691765d5a54d53f20e3e29104fea9712d6e33114387692c2f7282522b2391f028fac8ec50d6e3dbff94dbb
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\Users\Admin\AppData\Local\Temp\HD_81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe
Filesize2.1MB
MD51aa03156eb9d1a0dc99c857561cbab75
SHA143efbf608fa22ac1942ec7bb2b55b9eda8bd7e46
SHA256df9e8bd64b9902bd59ccbbb2340a2e839a715e6275a012054b8e1fe26c5a33f9
SHA51281f1c8c7bb289a2232a317e5834a5c194a48dd7406881d2dc40180f73ca8078a3fee6e0f17c4ed15c602e01ce1ad7007d00925e5dbe11585e4c4f43420adc884
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Filesize
941KB
MD58dc3adf1c490211971c1e2325f1424d2
SHA14eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5
SHA256bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c
SHA512ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d
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Filesize
899KB
MD53050889692f79fedf835d42f47e9a2af
SHA1ca161e630b068de2fa433c2f27e3e54e1664d616
SHA256f8940f7423426d714c95595c6ea35e4068e317660f973318a4ab2fcd0cdb856b
SHA512f7a6a711657c2a8acca5bdafb63e132f7794138d34fd306f4b3600ab8e1f653905df6c57d493fce12ee40586e073d76de91b46a505dc07adc8686cf4e3785047
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Filesize
43KB
MD551138beea3e2c21ec44d0932c71762a8
SHA18939cf35447b22dd2c6e6f443446acc1bf986d58
SHA2565ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124
SHA512794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d