Analysis
- max time kernel
93s - max time network
95s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system - submitted
06/09/2024, 07:57
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
985ed5f2c06b8e5059da6e875b337270N.dll
Resource
win7-20240903-en
8 signatures
120 seconds
General
- Target 985ed5f2c06b8e5059da6e875b337270N.dll
- Size 989KB
- Sample240906-js9mjavglc
- SHA256 3d0bf411eff0c512f6444e5dc2f7d604c8ccdf79795dd0d811d99a547d8d4d45
- MD5 985ed5f2c06b8e5059da6e875b337270
- SHA1 eaeb2b961b13825afa16b3b5cd8445cb1dd34d65
- SHA512 a42ee5977909e3d4a9436ba376661329829d20617aff5894e10bde8043cdaeabc3290c96bd1eb796cb5ffdd7b67f0be44d7ad53e5c0cf63fc3fc4eb7876c9399
- SSDEEP 24576:tW+wsDaQw6DNz3qRyPnmGfrnvVUKueYkRmneWtJDrEH7f:tasY6DOOBfrnvV74eWtI
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Detects Floxif payload 1 IoCs
resource yara_rule behavioral2/files/0x00080000000234cc-1.dat floxif - ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral2/files/0x00080000000234cc-1.dat acprotect - Loads dropped DLL 2 IoCs
pid Process 4936 rundll32.exe 4936 rundll32.exe -
resource yara_rule behavioral2/files/0x00080000000234cc-1.dat upx behavioral2/memory/4936-7-0x00000000027B0000-0x00000000027E0000-memory.dmp upx behavioral2/memory/4936-6-0x00000000027B0000-0x00000000027E0000-memory.dmp upx behavioral2/memory/4936-10-0x00000000027B0000-0x00000000027E0000-memory.dmp upx - Drops file in Program Files directory 1 IoCs
description ioc Process File created C:\Program Files\Common Files\System\symsrv.dll rundll32.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 rundll32.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4936 rundll32.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4340 wrote to memory of 4936 4340 rundll32.exe 83 PID 4340 wrote to memory of 4936 4340 rundll32.exe 83 PID 4340 wrote to memory of 4936 4340 rundll32.exe 83
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\985ed5f2c06b8e5059da6e875b337270N.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4340 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\985ed5f2c06b8e5059da6e875b337270N.dll,#12⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4936
-
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