Analysis
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max time kernel
30s -
max time network
89s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
03-03-2021 19:06
Static task
static1
Behavioral task
behavioral1
Sample
7e330e23339f98de5d23dff905e1a702e2ddbde2a966b629b81afee798b2bafe.dll
Resource
win7v20201028
0 signatures
0 seconds
General
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Target
7e330e23339f98de5d23dff905e1a702e2ddbde2a966b629b81afee798b2bafe.dll
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Size
188KB
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MD5
755e5c0db77bf093c09b57f546a61ee3
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SHA1
e5e2049e95aeb959e53eddb9716a64dfb3a5c380
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SHA256
7e330e23339f98de5d23dff905e1a702e2ddbde2a966b629b81afee798b2bafe
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SHA512
f0b86c4d09c4e62179b5ced1c78ab30034f774c7a0cd1793d2d9077d31e35678f299aa2574d6c450e734616a5710c43083bb950b8b4ce2dc5295a96cbf1da657
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/1656-4-0x0000000074AD0000-0x0000000074B01000-memory.dmp dridex_ldr behavioral1/memory/1656-6-0x0000000074AD0000-0x0000000074AEF000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 6 1656 rundll32.exe 8 1656 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 1108 wrote to memory of 1656 1108 rundll32.exe rundll32.exe PID 1108 wrote to memory of 1656 1108 rundll32.exe rundll32.exe PID 1108 wrote to memory of 1656 1108 rundll32.exe rundll32.exe PID 1108 wrote to memory of 1656 1108 rundll32.exe rundll32.exe PID 1108 wrote to memory of 1656 1108 rundll32.exe rundll32.exe PID 1108 wrote to memory of 1656 1108 rundll32.exe rundll32.exe PID 1108 wrote to memory of 1656 1108 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\7e330e23339f98de5d23dff905e1a702e2ddbde2a966b629b81afee798b2bafe.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\7e330e23339f98de5d23dff905e1a702e2ddbde2a966b629b81afee798b2bafe.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/896-7-0x000007FEF7510000-0x000007FEF778A000-memory.dmpFilesize
2.5MB
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memory/1656-2-0x0000000000000000-mapping.dmp
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memory/1656-3-0x00000000760D1000-0x00000000760D3000-memory.dmpFilesize
8KB
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memory/1656-4-0x0000000074AD0000-0x0000000074B01000-memory.dmpFilesize
196KB
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memory/1656-5-0x0000000000140000-0x0000000000146000-memory.dmpFilesize
24KB
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memory/1656-6-0x0000000074AD0000-0x0000000074AEF000-memory.dmpFilesize
124KB