Analysis
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max time kernel
170s -
max time network
136s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
19-04-2022 04:20
Static task
static1
Behavioral task
behavioral1
Sample
48dc546fd72839ba913d8df996713bf6f4026da395321e85d7a389ee632d4642.dll
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
48dc546fd72839ba913d8df996713bf6f4026da395321e85d7a389ee632d4642.dll
Resource
win10v2004-20220414-en
General
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Target
48dc546fd72839ba913d8df996713bf6f4026da395321e85d7a389ee632d4642.dll
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Size
1.2MB
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MD5
7646f5ed5e19b61c8a94005ad15098d5
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SHA1
6da94de9b802091686dc640c951205c50ce53182
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SHA256
48dc546fd72839ba913d8df996713bf6f4026da395321e85d7a389ee632d4642
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SHA512
05c0cc99d82ffeca0366d38c34bc942a184a90d163f165fc0f9801997500305514028af051043fe368a5ea72a6311bd801e96a4a6be785ff51f4f414f7608db6
Malware Config
Signatures
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Processes:
resource yara_rule behavioral1/memory/1376-59-0x00000000026E0000-0x00000000026E1000-memory.dmp dridex_stager_shellcode -
Modifies Installed Components in the registry 2 TTPs
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Processes:
rundll32.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe -
Drops file in Windows directory 2 IoCs
Processes:
explorer.exedescription ioc process File opened for modification \??\c:\windows\installer\{ac76ba86-7ad7-1033-7b44-a90000000001}\sc_reader.exe explorer.exe File opened for modification \??\c:\windows\installer\{ac76ba86-7ad7-1033-7b44-a90000000001}\pdffile_8.ico explorer.exe -
Modifies registry class 5 IoCs
Processes:
explorer.exedescription ioc process Set value (data) \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff explorer.exe Key created \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000_Classes\Local Settings explorer.exe Key created \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell explorer.exe Key created \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots explorer.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
rundll32.exepid process 288 rundll32.exe 288 rundll32.exe 288 rundll32.exe 288 rundll32.exe 288 rundll32.exe 288 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 16 IoCs
Processes:
explorer.exeAUDIODG.EXEdescription pid process Token: SeShutdownPrivilege 1804 explorer.exe Token: SeShutdownPrivilege 1804 explorer.exe Token: SeShutdownPrivilege 1804 explorer.exe Token: SeShutdownPrivilege 1804 explorer.exe Token: SeShutdownPrivilege 1804 explorer.exe Token: SeShutdownPrivilege 1804 explorer.exe Token: SeShutdownPrivilege 1804 explorer.exe Token: SeShutdownPrivilege 1804 explorer.exe Token: SeShutdownPrivilege 1804 explorer.exe Token: SeShutdownPrivilege 1804 explorer.exe Token: 33 1800 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 1800 AUDIODG.EXE Token: 33 1800 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 1800 AUDIODG.EXE Token: SeShutdownPrivilege 1804 explorer.exe Token: SeShutdownPrivilege 1804 explorer.exe -
Suspicious use of FindShellTrayWindow 25 IoCs
Processes:
explorer.exepid process 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe -
Suspicious use of SendNotifyMessage 17 IoCs
Processes:
explorer.exepid process 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe 1804 explorer.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\48dc546fd72839ba913d8df996713bf6f4026da395321e85d7a389ee632d4642.dll,#11⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\explorer.exeexplorer.exe1⤵
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x4941⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/288-54-0x0000000140000000-0x000000014012F000-memory.dmpFilesize
1.2MB
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memory/288-58-0x0000000000190000-0x0000000000197000-memory.dmpFilesize
28KB
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memory/1376-59-0x00000000026E0000-0x00000000026E1000-memory.dmpFilesize
4KB
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memory/1804-60-0x000007FEFB251000-0x000007FEFB253000-memory.dmpFilesize
8KB