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Analysis
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max time kernel
25s -
max time network
29s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
24/12/2023, 14:27
Static task
static1
Behavioral task
behavioral1
Sample
00d057522d4ce478024eb87893b5087a.dll
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
00d057522d4ce478024eb87893b5087a.dll
Resource
win10v2004-20231215-en
General
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Target
00d057522d4ce478024eb87893b5087a.dll
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Size
236KB
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MD5
00d057522d4ce478024eb87893b5087a
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SHA1
bd98a0ac8a896d36f4f6e8521074a96c139908fa
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SHA256
e61e36def6db1ec3d6d96b190165f2871e1ba5062b4f91e5b5aefefe7cd2258a
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SHA512
93c5bf58321118b6c32ec1db5b24dffe12bd1b7ae4a0504c75915e3755655b678ad0aef13418a12888ed013784d0712ca24ca1d23a35db39e4caf101a6661594
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SSDEEP
3072:SeqmgHwlaazN9U3J+P0wFp+bLrt2wkkIA:+Qj9U3jwO3rt5/
Malware Config
Signatures
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Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\ioubzoq = "{ae4bb2eb-26c3-7b18-37d4-26c33a63a4dd}" rundll32.exe -
Loads dropped DLL 1 IoCs
pid Process 2828 rundll32.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\vbhombd.dll rundll32.exe File created C:\Windows\SysWOW64\djpwujl.dll rundll32.exe File opened for modification C:\Windows\SysWOW64\djpwujl.dll rundll32.exe File created C:\Windows\SysWOW64\vbhombd.dll rundll32.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{ae4bb2eb-26c3-7b18-37d4-26c33a63a4dd} rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{ae4bb2eb-26c3-7b18-37d4-26c33a63a4dd}\ rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{ae4bb2eb-26c3-7b18-37d4-26c33a63a4dd}\InprocServer32 rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{ae4bb2eb-26c3-7b18-37d4-26c33a63a4dd}\InprocServer32\ = "C:\\Windows\\SysWow64\\djpwujl.dll" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{ae4bb2eb-26c3-7b18-37d4-26c33a63a4dd}\InprocServer32\ThreadingModel = "Apartment" rundll32.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2828 rundll32.exe 2828 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2828 rundll32.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2828 rundll32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2908 wrote to memory of 2828 2908 rundll32.exe 29 PID 2908 wrote to memory of 2828 2908 rundll32.exe 29 PID 2908 wrote to memory of 2828 2908 rundll32.exe 29 PID 2908 wrote to memory of 2828 2908 rundll32.exe 29 PID 2908 wrote to memory of 2828 2908 rundll32.exe 29 PID 2908 wrote to memory of 2828 2908 rundll32.exe 29 PID 2908 wrote to memory of 2828 2908 rundll32.exe 29
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\00d057522d4ce478024eb87893b5087a.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2908 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\00d057522d4ce478024eb87893b5087a.dll,#12⤵
- Adds autorun key to be loaded by Explorer.exe on startup
- Loads dropped DLL
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2828
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
625KB
MD595e2376b3323f062eb562b8586d0f14a
SHA1453d4c3bf4a489433b593420a37bbffb7749875a
SHA256bd3fa8750123d00aa0967fba44372c46ea002681da9c9b77a4f9261553e26017
SHA512b898603d07a49237e4dfc6872d5caa7616bae1258926f10e66c4d3f0d81cccefac1e844395b65bb1f308fbc022061b52e51f60658d0a546c04b365b3428cc87d