Analysis
-
max time kernel
93s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
19-12-2024 23:23
Static task
static1
Behavioral task
behavioral1
Sample
499a05b23d22edcb643a794e270703537cba3b6328eb40e228f59a7df2dba476.dll
Resource
win7-20240903-en
General
-
Target
499a05b23d22edcb643a794e270703537cba3b6328eb40e228f59a7df2dba476.dll
-
Size
171KB
-
MD5
3b9308c1853a885cd2a0f893822dcd6a
-
SHA1
8f02c170a227906de61c106a2304872cc4a8591f
-
SHA256
499a05b23d22edcb643a794e270703537cba3b6328eb40e228f59a7df2dba476
-
SHA512
9dd3a5ce7e28e495151afcdde06ea8cd2ddd09682513e99cc8e5ff02dfe202ec9b689510642ed650972ca5bf3d929868e9b34468738c2272ed7b5d1aba0571c2
-
SSDEEP
3072:hwqD1L8TIyzq0et+ui1yr2lQBV+UdE+rECWp7hKjo4K:KqJ8ctJvBV+UdvrEFp7hKfK
Malware Config
Signatures
-
Floxif family
-
Detects Floxif payload 1 IoCs
resource yara_rule behavioral2/files/0x0009000000023c6b-1.dat floxif -
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral2/files/0x0009000000023c6b-1.dat acprotect -
Loads dropped DLL 1 IoCs
pid Process 4512 rundll32.exe -
resource yara_rule behavioral2/files/0x0009000000023c6b-1.dat upx behavioral2/memory/4512-2-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/4512-8-0x0000000010000000-0x0000000010030000-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 -
Program crash 1 IoCs
pid pid_target Process procid_target 4444 4512 WerFault.exe 82 -
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 4512 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4876 wrote to memory of 4512 4876 rundll32.exe 82 PID 4876 wrote to memory of 4512 4876 rundll32.exe 82 PID 4876 wrote to memory of 4512 4876 rundll32.exe 82
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\499a05b23d22edcb643a794e270703537cba3b6328eb40e228f59a7df2dba476.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4876 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\499a05b23d22edcb643a794e270703537cba3b6328eb40e228f59a7df2dba476.dll,#12⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4512 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4512 -s 7283⤵
- Program crash
PID:4444
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4512 -ip 45121⤵PID:3832
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
67KB
MD57574cf2c64f35161ab1292e2f532aabf
SHA114ba3fa927a06224dfe587014299e834def4644f
SHA256de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA5124db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab