Analysis
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max time kernel
16s -
max time network
16s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
15-08-2024 18:17
Static task
static1
Behavioral task
behavioral1
Sample
bbd136d97ecea1315a9a2df2e8152890N.dll
Resource
win7-20240729-en
General
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Target
bbd136d97ecea1315a9a2df2e8152890N.dll
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Size
1.2MB
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MD5
bbd136d97ecea1315a9a2df2e8152890
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SHA1
d7de9848eac1313e6647aa342286c8836d87af8e
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SHA256
34dff8cd1a839deab082ff25a5bac1d20f991c4ab8868b213b4d3bc9ee561b28
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SHA512
4bf396f181926067fa68668b5766291fe4f84b44df9c45810416cfe84b46e444d0bce85ae8825b6770d7de00e6ca6751f164a1562875668f212afd690dca4110
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SSDEEP
24576:LF3HV0rHRLfmjHprvHfVg9lDT4Y1WYZVze1kj9Gd6CT1vDd6CT1v1+6H+60rEH7x:LF3HV0rHRLfmjHprvHfVg9x4YgYZYk0F
Malware Config
Signatures
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Detects Floxif payload 1 IoCs
resource yara_rule behavioral1/files/0x000b0000000122cf-1.dat floxif -
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral1/files/0x000b0000000122cf-1.dat acprotect -
Loads dropped DLL 1 IoCs
pid Process 2888 rundll32.exe -
resource yara_rule behavioral1/files/0x000b0000000122cf-1.dat upx behavioral1/memory/2888-3-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/memory/2888-5-0x0000000010000000-0x0000000010030000-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 2888 rundll32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1508 wrote to memory of 2888 1508 rundll32.exe 30 PID 1508 wrote to memory of 2888 1508 rundll32.exe 30 PID 1508 wrote to memory of 2888 1508 rundll32.exe 30 PID 1508 wrote to memory of 2888 1508 rundll32.exe 30 PID 1508 wrote to memory of 2888 1508 rundll32.exe 30 PID 1508 wrote to memory of 2888 1508 rundll32.exe 30 PID 1508 wrote to memory of 2888 1508 rundll32.exe 30
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\bbd136d97ecea1315a9a2df2e8152890N.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1508 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\bbd136d97ecea1315a9a2df2e8152890N.dll,#12⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2888
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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