Analysis
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max time kernel
39s -
max time network
47s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
20-04-2021 09:16
Static task
static1
General
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Target
9f6f247a6eb4626ec657c75b37cf4887283f988f1a64e914f6447437cbbc4ba4.dll
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Size
1.1MB
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MD5
9d6228117a677fcc222206166e0cf34e
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SHA1
56e1cddea321ebbba17af9d64cdffcf443704a51
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SHA256
9f6f247a6eb4626ec657c75b37cf4887283f988f1a64e914f6447437cbbc4ba4
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SHA512
f98b1da574267a66ce7c890b6b53af0479f5aeeba0fa37515eeecb609723e062bd1722eada0f9a8f6c52b924fd8a6ea1c940cfab07debdb4e31ca88964a76452
Malware Config
Extracted
Family
dridex
Botnet
10444
C2
146.185.170.249:443
62.75.251.60:6601
185.148.168.25:2303
rc4.plain
rc4.plain
Signatures
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Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
Processes:
WerFault.exedescription pid process target process PID 4092 created 492 4092 WerFault.exe rundll32.exe -
Processes:
resource yara_rule behavioral1/memory/492-115-0x0000000074250000-0x000000007428D000-memory.dmp dridex_ldr behavioral1/memory/492-116-0x0000000074250000-0x0000000074378000-memory.dmp dridex_ldr -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Processes:
rundll32.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 4092 492 WerFault.exe rundll32.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
Processes:
WerFault.exepid process 4092 WerFault.exe 4092 WerFault.exe 4092 WerFault.exe 4092 WerFault.exe 4092 WerFault.exe 4092 WerFault.exe 4092 WerFault.exe 4092 WerFault.exe 4092 WerFault.exe 4092 WerFault.exe 4092 WerFault.exe 4092 WerFault.exe 4092 WerFault.exe 4092 WerFault.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
WerFault.exedescription pid process Token: SeRestorePrivilege 4092 WerFault.exe Token: SeBackupPrivilege 4092 WerFault.exe Token: SeDebugPrivilege 4092 WerFault.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
rundll32.exedescription pid process target process PID 740 wrote to memory of 492 740 rundll32.exe rundll32.exe PID 740 wrote to memory of 492 740 rundll32.exe rundll32.exe PID 740 wrote to memory of 492 740 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\9f6f247a6eb4626ec657c75b37cf4887283f988f1a64e914f6447437cbbc4ba4.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\9f6f247a6eb4626ec657c75b37cf4887283f988f1a64e914f6447437cbbc4ba4.dll,#12⤵
- Checks whether UAC is enabled
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 492 -s 8403⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/492-114-0x0000000000000000-mapping.dmp
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memory/492-115-0x0000000074250000-0x000000007428D000-memory.dmpFilesize
244KB
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memory/492-116-0x0000000074250000-0x0000000074378000-memory.dmpFilesize
1.2MB
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memory/492-179-0x0000000000E00000-0x0000000000E01000-memory.dmpFilesize
4KB