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Analysis
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max time kernel
95s -
max time network
96s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
26/12/2024, 09:00
Static task
static1
Behavioral task
behavioral1
Sample
71f9d5474aa3aa3b4992ead5e39ed96e05e0137fd589de129dd0ce70656f130bN.dll
Resource
win7-20240903-en
General
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Target
71f9d5474aa3aa3b4992ead5e39ed96e05e0137fd589de129dd0ce70656f130bN.dll
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Size
162KB
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MD5
68f413eff2de45dbc8cffe9c001e59e0
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SHA1
292902372361338ce0b3f0835abf7bebac3cdee5
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SHA256
71f9d5474aa3aa3b4992ead5e39ed96e05e0137fd589de129dd0ce70656f130b
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SHA512
1baf3dbb1324635c4af2c73ff82f299dab1117c3bfbc59c6dea4bbb6024886290fe387c3d1706aba4caa4df534988fe18198c2bd26e365182f094abcace35d13
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SSDEEP
3072:OisgQjKaP+plTXszzyqA8XwxFJ2D2lQBV+UdE+rECWp7hKUd2k:OuOmpuzOqA8g0HBV+UdvrEFp7hKUdr
Malware Config
Signatures
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Floxif family
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Detects Floxif payload 1 IoCs
resource yara_rule behavioral2/files/0x000c000000023b1e-1.dat floxif -
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral2/files/0x000c000000023b1e-1.dat acprotect -
Loads dropped DLL 1 IoCs
pid Process 2040 rundll32.exe -
resource yara_rule behavioral2/files/0x000c000000023b1e-1.dat upx behavioral2/memory/2040-4-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/2040-8-0x0000000010000000-0x0000000010030000-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 2 IoCs
pid pid_target Process procid_target 3284 2040 WerFault.exe 85 4236 2040 WerFault.exe 85 -
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 2040 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2808 wrote to memory of 2040 2808 rundll32.exe 85 PID 2808 wrote to memory of 2040 2808 rundll32.exe 85 PID 2808 wrote to memory of 2040 2808 rundll32.exe 85
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\71f9d5474aa3aa3b4992ead5e39ed96e05e0137fd589de129dd0ce70656f130bN.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2808 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\71f9d5474aa3aa3b4992ead5e39ed96e05e0137fd589de129dd0ce70656f130bN.dll,#12⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2040 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2040 -s 7163⤵
- Program crash
PID:3284
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2040 -s 7683⤵
- Program crash
PID:4236
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2040 -ip 20401⤵PID:2064
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 2040 -ip 20401⤵PID:3468
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
67KB
MD57574cf2c64f35161ab1292e2f532aabf
SHA114ba3fa927a06224dfe587014299e834def4644f
SHA256de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA5124db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab