Analysis
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max time kernel
62s -
max time network
122s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
04-03-2021 02:05
Static task
static1
Behavioral task
behavioral1
Sample
c48adf18af5bc8374dfd2cde4ea4b67f6cb4d14298c0ecdf5290e88843b5f792.dll
Resource
win7v20201028
0 signatures
0 seconds
General
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Target
c48adf18af5bc8374dfd2cde4ea4b67f6cb4d14298c0ecdf5290e88843b5f792.dll
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Size
196KB
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MD5
dfe16d23d7a5195cacfb5c837dc2cc81
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SHA1
9e74d9dcc3f68e2c13cd7f308d0dab09ffd0ac76
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SHA256
c48adf18af5bc8374dfd2cde4ea4b67f6cb4d14298c0ecdf5290e88843b5f792
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SHA512
68afe83b91d12d846f9dc4964725f6e65bf64049e95900457875c3921d9919fab219be361f2b66f810ebd4994e66550f8afd1be19f53b0dfe86cca3e277509f5
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 behavioral2/memory/4728-3-0x0000000075A50000-0x0000000075A83000-memory.dmp dridex_ldr behavioral2/memory/4728-5-0x0000000075A50000-0x0000000075A6F000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 21 4728 rundll32.exe 23 4728 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 4684 wrote to memory of 4728 4684 rundll32.exe rundll32.exe PID 4684 wrote to memory of 4728 4684 rundll32.exe rundll32.exe PID 4684 wrote to memory of 4728 4684 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\c48adf18af5bc8374dfd2cde4ea4b67f6cb4d14298c0ecdf5290e88843b5f792.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\c48adf18af5bc8374dfd2cde4ea4b67f6cb4d14298c0ecdf5290e88843b5f792.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/4728-2-0x0000000000000000-mapping.dmp
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memory/4728-3-0x0000000075A50000-0x0000000075A83000-memory.dmpFilesize
204KB
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memory/4728-4-0x0000000000520000-0x0000000000526000-memory.dmpFilesize
24KB
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memory/4728-5-0x0000000075A50000-0x0000000075A6F000-memory.dmpFilesize
124KB