Analysis
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max time kernel
51s -
max time network
61s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
03-03-2021 21:02
Static task
static1
General
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Target
5d367a557fb4832d94adb726cac537fc967db49abbcefb41f9dc64b7cd6f4eea.dll
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Size
196KB
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MD5
65b1f8596a530c3c491846e7d6a75aad
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SHA1
823db245fd9d6599269dc0d8be73a6e3a6e1754c
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SHA256
5d367a557fb4832d94adb726cac537fc967db49abbcefb41f9dc64b7cd6f4eea
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SHA512
19270b5c28b55a33f0a24f762dc66ca5cd8e3dc0cc2e8a14e76c14956fdcafed589ddf2f69cf0cc1e5a106f716f428a22487a77a6e5b4ec534db4cfe0accfdf6
Malware Config
Extracted
Family
dridex
Botnet
111
C2
37.247.35.132:443
50.243.30.51:6601
162.241.204.234:6516
rc4.plain
rc4.plain
Signatures
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Processes:
resource yara_rule behavioral1/memory/1904-4-0x0000000074680000-0x00000000746B3000-memory.dmp dridex_ldr behavioral1/memory/1904-6-0x0000000074680000-0x000000007469F000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 6 1904 rundll32.exe 8 1904 rundll32.exe -
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 -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
rundll32.exedescription pid process target process PID 308 wrote to memory of 1904 308 rundll32.exe rundll32.exe PID 308 wrote to memory of 1904 308 rundll32.exe rundll32.exe PID 308 wrote to memory of 1904 308 rundll32.exe rundll32.exe PID 308 wrote to memory of 1904 308 rundll32.exe rundll32.exe PID 308 wrote to memory of 1904 308 rundll32.exe rundll32.exe PID 308 wrote to memory of 1904 308 rundll32.exe rundll32.exe PID 308 wrote to memory of 1904 308 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\5d367a557fb4832d94adb726cac537fc967db49abbcefb41f9dc64b7cd6f4eea.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\5d367a557fb4832d94adb726cac537fc967db49abbcefb41f9dc64b7cd6f4eea.dll,#12⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/608-7-0x000007FEF7040000-0x000007FEF72BA000-memory.dmpFilesize
2.5MB
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memory/1904-2-0x0000000000000000-mapping.dmp
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memory/1904-3-0x0000000075C61000-0x0000000075C63000-memory.dmpFilesize
8KB
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memory/1904-4-0x0000000074680000-0x00000000746B3000-memory.dmpFilesize
204KB
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memory/1904-5-0x00000000002C0000-0x00000000002C6000-memory.dmpFilesize
24KB
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memory/1904-6-0x0000000074680000-0x000000007469F000-memory.dmpFilesize
124KB