Analysis
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max time kernel
34s -
max time network
142s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
24-02-2021 23:42
Static task
static1
Behavioral task
behavioral1
Sample
22ace8e62742ddca85fdb3f58ef0bf5e13b8a4b41b73be252db6b8e4091baec7.dll
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
General
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Target
22ace8e62742ddca85fdb3f58ef0bf5e13b8a4b41b73be252db6b8e4091baec7.dll
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Size
188KB
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MD5
b82c7cc0f6f2dbb5f6f0c17a93a4935c
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SHA1
b33aa86152c301bf1edcaf51e09139c6e0a545f5
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SHA256
22ace8e62742ddca85fdb3f58ef0bf5e13b8a4b41b73be252db6b8e4091baec7
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SHA512
85d86a73826646445f675ecd4b84c5e282ebe65e9525fe3ddb46f6a66fd792b2e97f9bc1dcc0b4bd9063ef18220e8ad0e0150636113804716f6198f0ab9d17d9
Malware Config
Extracted
Family
dridex
Botnet
111
C2
209.151.236.42:443
91.121.94.86:8172
5.189.144.136:6516
rc4.plain
rc4.plain
Signatures
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Processes:
resource yara_rule behavioral2/memory/1516-3-0x0000000074040000-0x0000000074071000-memory.dmp dridex_ldr behavioral2/memory/1516-5-0x0000000074040000-0x000000007405F000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 20 1516 rundll32.exe 22 1516 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 3 IoCs
Processes:
rundll32.exedescription pid process target process PID 1052 wrote to memory of 1516 1052 rundll32.exe rundll32.exe PID 1052 wrote to memory of 1516 1052 rundll32.exe rundll32.exe PID 1052 wrote to memory of 1516 1052 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\22ace8e62742ddca85fdb3f58ef0bf5e13b8a4b41b73be252db6b8e4091baec7.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\22ace8e62742ddca85fdb3f58ef0bf5e13b8a4b41b73be252db6b8e4091baec7.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/1516-2-0x0000000000000000-mapping.dmp
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memory/1516-3-0x0000000074040000-0x0000000074071000-memory.dmpFilesize
196KB
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memory/1516-4-0x0000000000F60000-0x0000000000F66000-memory.dmpFilesize
24KB
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memory/1516-5-0x0000000074040000-0x000000007405F000-memory.dmpFilesize
124KB