Analysis
- max time kernel
102s - max time network
105s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system - submitted
23/08/2024, 14:07
Static task
static1
Behavioral task
behavioral1
Sample
5e2ca39cc30526321f3fd2d9ec07ba70N.dll
Resource
win7-20240705-en
windows7-x64
10 signatures
120 seconds
General
- Target 5e2ca39cc30526321f3fd2d9ec07ba70N.dll
- Size 274KB
- Sample240823-rfhbhs1cmn
- SHA256 d514dabfe5d85ba7b90a07fc08f790931a8a00221e0560201dc5d8c76dcb0088
- MD5 5e2ca39cc30526321f3fd2d9ec07ba70
- SHA1 258ebdc11e8ebdc1abf000eb3e41ffb83c51564d
- SHA512 e01e1df3e6491fbe5d1b97ab898a011443a083ef12dad971a4760a09b86d3735715776c5fe9d01acb3954a10c961c54a6d281b869195630eea263be2be21a39b
- SSDEEP 6144:FIbK9vVnBG76JEEih6HBV+UdvrEFp7hK3y3:X9ve7YxHBjvrEH7H3
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Detects Floxif payload 1 IoCs
resource yara_rule behavioral2/files/0x00090000000233d9-3.dat floxif - ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral2/files/0x00090000000233d9-3.dat acprotect - Loads dropped DLL 2 IoCs
pid Process 1948 regsvr32.exe 1948 regsvr32.exe -
resource yara_rule behavioral2/files/0x00090000000233d9-3.dat upx behavioral2/memory/1948-7-0x0000000000750000-0x0000000000780000-memory.dmp upx behavioral2/memory/1948-6-0x0000000000750000-0x0000000000780000-memory.dmp upx behavioral2/memory/1948-9-0x0000000000750000-0x0000000000780000-memory.dmp upx - Drops file in Program Files directory 1 IoCs
description ioc Process File created C:\Program Files\Common Files\System\symsrv.dll regsvr32.exe - System Location Discovery: System Language Discovery 1 TTPs 1 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 regsvr32.exe - Modifies registry class 64 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\DownlWithIDM.LinkProcessor.1\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\DownlWithIDM.IDMDwnlMgr.1\CLSID\ = "{7D11E719-FF90-479C-B0D7-96EB43EE55D7}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\DownlWithIDM.IDMDwnlMgr\ = "IDMDwnlMgr Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7D11E719-FF90-479C-B0D7-96EB43EE55D7}\ProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{72B7361C-3568-4392-BCCD-D912CD5C1169}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{52F6F7BD-DF73-44B3-AE13-89E1E1FB8F6A}\ToolboxBitmap32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CDD67718-A430-4AB9-A939-83D9074B0038}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6A89524B-E1B6-4D71-972A-8FD53F240936}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\5e2ca39cc30526321f3fd2d9ec07ba70N.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6A89524B-E1B6-4D71-972A-8FD53F240936}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{356E6235-B055-46D9-8B32-BDC2266C9DAB}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\DownlWithIDM.LinkProcessor\CLSID\ = "{52F6F7BD-DF73-44B3-AE13-89E1E1FB8F6A}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\DownlWithIDM.VLinkProcessor.1\CLSID\ = "{CDD67718-A430-4AB9-A939-83D9074B0038}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7D11E719-FF90-479C-B0D7-96EB43EE55D7}\ProgID\ = "DownlWithIDM.IDMDwnlMgr.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CDD67718-A430-4AB9-A939-83D9074B0038}\TypeLib\ = "{6A89524B-E1B6-4D71-972A-8FD53F240936}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\DownlWithIDM.V2LinkProcessor\CLSID\ = "{4764030F-2733-45B9-AE62-3D1F4F6F2861}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\DownlWithIDM.IDMDwnlMgr\CLSID\ = "{7D11E719-FF90-479C-B0D7-96EB43EE55D7}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7D11E719-FF90-479C-B0D7-96EB43EE55D7}\VersionIndependentProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CDD67718-A430-4AB9-A939-83D9074B0038}\VersionIndependentProgID\ = "DownlWithIDM.VLinkProcessor" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CDD67718-A430-4AB9-A939-83D9074B0038}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6A89524B-E1B6-4D71-972A-8FD53F240936}\1.0\0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{72B7361C-3568-4392-BCCD-D912CD5C1169}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BC69364C-34D7-4225-B16F-8595C743C775}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{52F6F7BD-DF73-44B3-AE13-89E1E1FB8F6A}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\DownlWithIDM.V2LinkProcessor.1\CLSID\ = "{4764030F-2733-45B9-AE62-3D1F4F6F2861}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4764030F-2733-45B9-AE62-3D1F4F6F2861} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6A89524B-E1B6-4D71-972A-8FD53F240936}\1.0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{356E6235-B055-46D9-8B32-BDC2266C9DAB}\TypeLib\ = "{6A89524B-E1B6-4D71-972A-8FD53F240936}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4764030F-2733-45B9-AE62-3D1F4F6F2861}\TypeLib\ = "{6A89524B-E1B6-4D71-972A-8FD53F240936}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7D11E719-FF90-479C-B0D7-96EB43EE55D7}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{356E6235-B055-46D9-8B32-BDC2266C9DAB}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{BC69364C-34D7-4225-B16F-8595C743C775}\TypeLib\ = "{6A89524B-E1B6-4D71-972A-8FD53F240936}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{356E6235-B055-46D9-8B32-BDC2266C9DAB}\ = "ILinkProcessor" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{BC69364C-34D7-4225-B16F-8595C743C775} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{BC69364C-34D7-4225-B16F-8595C743C775}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{52F6F7BD-DF73-44B3-AE13-89E1E1FB8F6A}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\DownlWithIDM.VLinkProcessor.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4764030F-2733-45B9-AE62-3D1F4F6F2861}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7D11E719-FF90-479C-B0D7-96EB43EE55D7}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\5e2ca39cc30526321f3fd2d9ec07ba70N.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6A89524B-E1B6-4D71-972A-8FD53F240936}\1.0\FLAGS\ = "0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\DownlWithIDM.VLinkProcessor\ = "VLinkProcessor Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CDD67718-A430-4AB9-A939-83D9074B0038}\ = "VLinkProcessor Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{72B7361C-3568-4392-BCCD-D912CD5C1169}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{356E6235-B055-46D9-8B32-BDC2266C9DAB}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{BC69364C-34D7-4225-B16F-8595C743C775}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BC69364C-34D7-4225-B16F-8595C743C775}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\DownlWithIDM.LinkProcessor\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{52F6F7BD-DF73-44B3-AE13-89E1E1FB8F6A}\MiscStatus regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CDD67718-A430-4AB9-A939-83D9074B0038}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\5e2ca39cc30526321f3fd2d9ec07ba70N.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\DownlWithIDM.V2LinkProcessor regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7D11E719-FF90-479C-B0D7-96EB43EE55D7}\VersionIndependentProgID\ = "DownlWithIDM.IDMDwnlMgr" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{72B7361C-3568-4392-BCCD-D912CD5C1169}\TypeLib\ = "{6A89524B-E1B6-4D71-972A-8FD53F240936}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\DownlWithIDM.LinkProcessor.1\ = "LinkProcessor Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{52F6F7BD-DF73-44B3-AE13-89E1E1FB8F6A}\ProgID\ = "DownlWithIDM.LinkProcessor.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\DownlWithIDM.V2LinkProcessor.1\ = "V2LinkProcessor Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4764030F-2733-45B9-AE62-3D1F4F6F2861}\ProgID\ = "DownlWithIDM.V2LinkProcessor.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{52F6F7BD-DF73-44B3-AE13-89E1E1FB8F6A} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4764030F-2733-45B9-AE62-3D1F4F6F2861}\VersionIndependentProgID\ = "DownlWithIDM.V2LinkProcessor" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4764030F-2733-45B9-AE62-3D1F4F6F2861}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{BC69364C-34D7-4225-B16F-8595C743C775}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{72B7361C-3568-4392-BCCD-D912CD5C1169}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{72B7361C-3568-4392-BCCD-D912CD5C1169}\ = "IV2LinkProcessor" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{72B7361C-3568-4392-BCCD-D912CD5C1169}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{72B7361C-3568-4392-BCCD-D912CD5C1169}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{52F6F7BD-DF73-44B3-AE13-89E1E1FB8F6A}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\5e2ca39cc30526321f3fd2d9ec07ba70N.dll" regsvr32.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1948 regsvr32.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3972 wrote to memory of 1948 3972 regsvr32.exe 84 PID 3972 wrote to memory of 1948 3972 regsvr32.exe 84 PID 3972 wrote to memory of 1948 3972 regsvr32.exe 84
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\5e2ca39cc30526321f3fd2d9ec07ba70N.dll1⤵
- Suspicious use of WriteProcessMemory
PID:3972 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\5e2ca39cc30526321f3fd2d9ec07ba70N.dll2⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
PID:1948
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Program Files\Common Files\System\symsrv.dll
- Size 67KB
- SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
- MD5 7574cf2c64f35161ab1292e2f532aabf
- SHA1 14ba3fa927a06224dfe587014299e834def4644f
- SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab
- SSDEEP 1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZL:c8y93KQjy7G55riF1cMo03V
- MD5 SHA1 SHA512 SSDEEP