Analysis
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max time kernel
99s -
max time network
141s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
04-01-2025 02:34
Behavioral task
behavioral1
Sample
b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe
Resource
win10v2004-20241007-en
General
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Target
b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe
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Size
2.8MB
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MD5
21f0f3b31785b8c29ae831758f056048
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SHA1
4839b5e6c2e81c16de25d7f1557b2d14fb4e5f10
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SHA256
b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5
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SHA512
7fa38af42b639b537c8cc18ffaeeac688791a60a6de2e5d5955a0c3b9773d515b404f2c004d0fc4ed7afcc903dc7dc8107c93534e86e6c3adedf79be86ada14e
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SSDEEP
24576:4l18GADX15DihL9GVRqIERogW68ngSTeTm8HZfj4cCao6A6u2EmAOuydnTX2tuiJ:4O7SL9eq67ydBC/S2mpTnd1cF
Malware Config
Signatures
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Blackmoon family
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Detect Blackmoon payload 1 IoCs
resource yara_rule behavioral2/memory/3508-13-0x0000000010000000-0x0000000010025000-memory.dmp family_blackmoon -
PrivateLoader
PrivateLoader is a downloader sold as a pay-per-install malware distribution service.
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Privateloader family
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Sets service image path in registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\UFEiFgUcdF\ImagePath = "\\??\\C:\\CAb39EwB.sys" b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\lytmwc\ImagePath = "\\??\\C:\\Windows\\Fonts\\lytmwc.sys" b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe -
Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\F: b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\Fonts\lytmwc.sys b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe File opened for modification C:\Windows\Fonts\lytmwc.sys b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe -
Launches sc.exe 4 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 1524 sc.exe 2456 sc.exe 1108 sc.exe 4628 sc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 10 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 taskkill.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language CMD.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language CMD.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language CMD.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language CMD.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe -
Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\ConfigFlags dwm.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_QEMU&PROD_QEMU_DVD-ROM\4&215468A5&0&010000 dwm.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_QEMU&Prod_QEMU_DVD-ROM\4&215468a5&0&010000\ConfigFlags dwm.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\HardwareID dwm.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_QEMU&Prod_QEMU_DVD-ROM\4&215468a5&0&010000\HardwareID dwm.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_WDC&PROD_WDS100T2B0A\4&215468A5&0&000000 dwm.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS dwm.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU dwm.exe -
Kills process with taskkill 1 IoCs
pid Process 2880 taskkill.exe -
Modifies data under HKEY_USERS 18 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA dwm.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root dwm.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing dwm.exe Key created \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache dwm.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA dwm.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft dwm.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople dwm.exe Key created \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E dwm.exe Key created \REGISTRY\USER\.DEFAULT\Software dwm.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed dwm.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople dwm.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed dwm.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust dwm.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust dwm.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft dwm.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates dwm.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies dwm.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates dwm.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe -
Suspicious behavior: LoadsDriver 3 IoCs
pid Process 652 Process not Found 652 Process not Found 652 Process not Found -
Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe Token: SeDebugPrivilege 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe Token: SeDebugPrivilege 2880 taskkill.exe Token: SeCreateGlobalPrivilege 2056 dwm.exe Token: SeChangeNotifyPrivilege 2056 dwm.exe Token: 33 2056 dwm.exe Token: SeIncBasePriorityPrivilege 2056 dwm.exe Token: SeDebugPrivilege 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe Token: SeShutdownPrivilege 2056 dwm.exe Token: SeCreatePagefilePrivilege 2056 dwm.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe -
Suspicious use of WriteProcessMemory 29 IoCs
description pid Process procid_target PID 3508 wrote to memory of 3372 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 82 PID 3508 wrote to memory of 3372 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 82 PID 3508 wrote to memory of 2880 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 83 PID 3508 wrote to memory of 2880 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 83 PID 3508 wrote to memory of 2880 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 83 PID 3508 wrote to memory of 3604 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 88 PID 3508 wrote to memory of 3604 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 88 PID 3508 wrote to memory of 3604 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 88 PID 3604 wrote to memory of 4628 3604 CMD.exe 90 PID 3604 wrote to memory of 4628 3604 CMD.exe 90 PID 3604 wrote to memory of 4628 3604 CMD.exe 90 PID 3508 wrote to memory of 1648 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 91 PID 3508 wrote to memory of 1648 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 91 PID 3508 wrote to memory of 1648 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 91 PID 1648 wrote to memory of 1524 1648 CMD.exe 93 PID 1648 wrote to memory of 1524 1648 CMD.exe 93 PID 1648 wrote to memory of 1524 1648 CMD.exe 93 PID 3508 wrote to memory of 3680 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 94 PID 3508 wrote to memory of 3680 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 94 PID 3508 wrote to memory of 3680 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 94 PID 3680 wrote to memory of 2456 3680 CMD.exe 96 PID 3680 wrote to memory of 2456 3680 CMD.exe 96 PID 3680 wrote to memory of 2456 3680 CMD.exe 96 PID 3508 wrote to memory of 2496 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 97 PID 3508 wrote to memory of 2496 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 97 PID 3508 wrote to memory of 2496 3508 b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe 97 PID 2496 wrote to memory of 1108 2496 CMD.exe 99 PID 2496 wrote to memory of 1108 2496 CMD.exe 99 PID 2496 wrote to memory of 1108 2496 CMD.exe 99
Processes
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C:\Users\Admin\AppData\Local\Temp\b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe"C:\Users\Admin\AppData\Local\Temp\b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe"1⤵
- Sets service image path in registry
- Enumerates connected drives
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3508 -
C:\Windows\System32\notepad.exe"C:\Windows\System32\notepad.exe"2⤵PID:3372
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C:\Windows\SysWOW64\taskkill.exeC:\Windows\System32\taskkill /f /pid 3162⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2880
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C:\Windows\SysWOW64\CMD.exeCMD /C SC STOP lytmwc2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3604 -
C:\Windows\SysWOW64\sc.exeSC STOP lytmwc3⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:4628
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C:\Windows\SysWOW64\CMD.exeCMD /C SC DELETE lytmwc2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1648 -
C:\Windows\SysWOW64\sc.exeSC DELETE lytmwc3⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:1524
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C:\Windows\SysWOW64\CMD.exeCMD /C SC STOP lytmwc2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3680 -
C:\Windows\SysWOW64\sc.exeSC STOP lytmwc3⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2456
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C:\Windows\SysWOW64\CMD.exeCMD /C SC DELETE lytmwc2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2496 -
C:\Windows\SysWOW64\sc.exeSC DELETE lytmwc3⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:1108
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C:\Windows\system32\dwm.exe"dwm.exe"1⤵
- Checks SCSI registry key(s)
- Enumerates system info in registry
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:2056
Network
MITRE ATT&CK Enterprise v15
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
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C:\Users\Admin\AppData\Local\Temp\b97c6f5eb0dffd17832083d913eebb6a01526a7c7885961262b64c271e40bdf5.exe
Filesize2.8MB
MD5832bcb75cec46aff2297ed3a820d7eed
SHA12a9c1ebd2cc72905229623f68c2ac7ae8c9472ac
SHA25641baccef6dab879e6a00cda100f797fa1c2fefe6a99c7f0d7e376b03edb890fb
SHA5129f1249c357b137b8ce6aef23aef15b6451b9f8ea15bfddc7c0a188fab41cc2b0419ef0b22e064d803c4549ada64cd6c12e7a47b633304a8f636b2566dff4def7