Analysis
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max time kernel
118s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
16-09-2024 19:49
Static task
static1
Behavioral task
behavioral1
Sample
version.dll
Resource
win7-20240903-en
General
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Target
version.dll
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Size
1.0MB
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MD5
4b7ea4719e10a326a3a83233ecd952dd
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SHA1
18ac98c6780f2740b3462b2232f7de734a933682
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SHA256
a37db4499f839088a50d0d88bb5af644462202c8ea4581ca7750ed502e1b1e0d
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SHA512
31cefbb4e1d77bfb9cc25346bfde1c0d2dd38d0b529fb0a633789e964258bab14da84d7c06ab53a7063fd05bb34637db181598880c72fa372400b828f59903ef
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SSDEEP
12288:Qxzy52sk14W7fncGkiipuuDx6h0QrH6s6iEN6GGvulmc3MkpBjvrEH72M:esk14W7pP7H6s6iEMrkrEH72M
Malware Config
Signatures
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Detects Floxif payload 1 IoCs
resource yara_rule behavioral1/files/0x000c0000000122ce-1.dat floxif -
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral1/files/0x000c0000000122ce-1.dat acprotect -
Loads dropped DLL 1 IoCs
pid Process 2392 rundll32.exe -
resource yara_rule behavioral1/files/0x000c0000000122ce-1.dat upx behavioral1/memory/2392-3-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/memory/2392-6-0x0000000010000000-0x0000000010030000-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 WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2524 wrote to memory of 2392 2524 rundll32.exe 31 PID 2524 wrote to memory of 2392 2524 rundll32.exe 31 PID 2524 wrote to memory of 2392 2524 rundll32.exe 31 PID 2524 wrote to memory of 2392 2524 rundll32.exe 31 PID 2524 wrote to memory of 2392 2524 rundll32.exe 31 PID 2524 wrote to memory of 2392 2524 rundll32.exe 31 PID 2524 wrote to memory of 2392 2524 rundll32.exe 31
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\version.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2524 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\version.dll,#12⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2392
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
67KB
MD57574cf2c64f35161ab1292e2f532aabf
SHA114ba3fa927a06224dfe587014299e834def4644f
SHA256de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA5124db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab