Analysis
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max time kernel
32s -
max time network
92s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
03-03-2021 19:09
Static task
static1
Behavioral task
behavioral1
Sample
94c66517b87d6e58b525f39d36de3c62932e2857ee750ad8e06cafbe721d1cc2.dll
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
General
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Target
94c66517b87d6e58b525f39d36de3c62932e2857ee750ad8e06cafbe721d1cc2.dll
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Size
188KB
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MD5
cd9e3aed8b1d7a1135ad1022b88849be
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SHA1
c3135d094c25bd9b5b5cc376a161138b15a0c78f
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SHA256
94c66517b87d6e58b525f39d36de3c62932e2857ee750ad8e06cafbe721d1cc2
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SHA512
47f058a9aff4f9d7087903581ebf1262d77d490c9576f39b392a35bf724fee01716a6b2a1be445d948f83d344dcc23dfa9d581e2985592cc0cbd47c719bcc33d
Malware Config
Extracted
Family
dridex
Botnet
111
C2
116.251.211.158:443
216.10.242.142:6601
37.247.35.137:6601
rc4.plain
rc4.plain
Signatures
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Processes:
resource yara_rule behavioral1/memory/1652-4-0x0000000075340000-0x0000000075371000-memory.dmp dridex_ldr behavioral1/memory/1652-6-0x0000000075340000-0x000000007535F000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 4 1652 rundll32.exe 7 1652 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 1684 wrote to memory of 1652 1684 rundll32.exe rundll32.exe PID 1684 wrote to memory of 1652 1684 rundll32.exe rundll32.exe PID 1684 wrote to memory of 1652 1684 rundll32.exe rundll32.exe PID 1684 wrote to memory of 1652 1684 rundll32.exe rundll32.exe PID 1684 wrote to memory of 1652 1684 rundll32.exe rundll32.exe PID 1684 wrote to memory of 1652 1684 rundll32.exe rundll32.exe PID 1684 wrote to memory of 1652 1684 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\94c66517b87d6e58b525f39d36de3c62932e2857ee750ad8e06cafbe721d1cc2.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1684 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\94c66517b87d6e58b525f39d36de3c62932e2857ee750ad8e06cafbe721d1cc2.dll,#12⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1652
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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memory/1296-7-0x000007FEF68D0000-0x000007FEF6B4A000-memory.dmpFilesize
2.5MB
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memory/1652-2-0x0000000000000000-mapping.dmp
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memory/1652-3-0x00000000756A1000-0x00000000756A3000-memory.dmpFilesize
8KB
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memory/1652-4-0x0000000075340000-0x0000000075371000-memory.dmpFilesize
196KB
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memory/1652-5-0x0000000000270000-0x0000000000276000-memory.dmpFilesize
24KB
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memory/1652-6-0x0000000075340000-0x000000007535F000-memory.dmpFilesize
124KB