Analysis
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max time kernel
26s -
max time network
135s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
24-02-2021 23:42
Static task
static1
Behavioral task
behavioral1
Sample
1fc05a06a468c60eaef126a45b6b17e5bf31580c922f4ffd5787d2eeb1648a81.dll
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
General
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Target
1fc05a06a468c60eaef126a45b6b17e5bf31580c922f4ffd5787d2eeb1648a81.dll
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Size
188KB
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MD5
6a6372d9817a2ff4d90dde4ed5aa3443
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SHA1
d462cd6e6302b769429e5c65bb6fcd3c4bc0e4c9
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SHA256
1fc05a06a468c60eaef126a45b6b17e5bf31580c922f4ffd5787d2eeb1648a81
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SHA512
c5e5bde36ffb5de5f1468184aacebbcc7e1ceb45fd97631807b00f8166b8a0ebd5837baeb157f5c00e7c857b6d8db389098f6cdfa498b91488c149aedbcd7912
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/1432-3-0x00000000738B0000-0x00000000738E1000-memory.dmp dridex_ldr behavioral2/memory/1432-5-0x00000000738B0000-0x00000000738CF000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 17 1432 rundll32.exe 19 1432 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 1152 wrote to memory of 1432 1152 rundll32.exe rundll32.exe PID 1152 wrote to memory of 1432 1152 rundll32.exe rundll32.exe PID 1152 wrote to memory of 1432 1152 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\1fc05a06a468c60eaef126a45b6b17e5bf31580c922f4ffd5787d2eeb1648a81.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\1fc05a06a468c60eaef126a45b6b17e5bf31580c922f4ffd5787d2eeb1648a81.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/1432-2-0x0000000000000000-mapping.dmp
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memory/1432-3-0x00000000738B0000-0x00000000738E1000-memory.dmpFilesize
196KB
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memory/1432-4-0x0000000003740000-0x0000000003746000-memory.dmpFilesize
24KB
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memory/1432-5-0x00000000738B0000-0x00000000738CF000-memory.dmpFilesize
124KB