Analysis
- max time kernel
93s - max time network
102s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system - submitted
09/09/2024, 00:06
Static task
static1
Behavioral task
behavioral1
Sample
87a7ad1cb40613009e8fff356f7afa4b56703d51923b0ba5c8855b3737adf7e4.dll
Resource
win7-20240903-en
9 signatures
150 seconds
General
- Target 87a7ad1cb40613009e8fff356f7afa4b56703d51923b0ba5c8855b3737adf7e4.dll
- Size 853KB
- Sample240909-ad7d7ascjk
- SHA256 87a7ad1cb40613009e8fff356f7afa4b56703d51923b0ba5c8855b3737adf7e4
- MD5 8ca352d5b82cee0e6ce559f4377599b3
- SHA1 af72cbc988490a02aa9b2822960860703783525e
- SHA512 173118ea1931db3707acb7dfc550984c48d45bbffcd38f7241d92e745ac9b8b38d9e2735aaca06a69b672df4d6c7c518b75ddb81f2b5f430b3f0e41c7d66289c
- SSDEEP 24576:6dcSu7nJ1DVBEdbWoHk7gGpTbSpNTNTyxrEH7s:kuINE7gKTbGTyz
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Detects Floxif payload 1 IoCs
resource yara_rule behavioral2/files/0x000a000000023473-1.dat floxif - ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral2/files/0x000a000000023473-1.dat acprotect - Loads dropped DLL 1 IoCs
pid Process 2988 rundll32.exe -
resource yara_rule behavioral2/memory/2988-4-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/files/0x000a000000023473-1.dat upx behavioral2/memory/2988-6-0x0000000010000000-0x0000000010030000-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 2988 rundll32.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3984 wrote to memory of 2988 3984 rundll32.exe 84 PID 3984 wrote to memory of 2988 3984 rundll32.exe 84 PID 3984 wrote to memory of 2988 3984 rundll32.exe 84
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\87a7ad1cb40613009e8fff356f7afa4b56703d51923b0ba5c8855b3737adf7e4.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3984 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\87a7ad1cb40613009e8fff356f7afa4b56703d51923b0ba5c8855b3737adf7e4.dll,#12⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2988
-
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