Analysis
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max time kernel
142s -
max time network
174s -
platform
windows10-2004_x64 -
resource
win10v2004-20220721-en -
resource tags
arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system -
submitted
31-07-2022 05:08
Static task
static1
Behavioral task
behavioral1
Sample
dcbl8fi.dll
Resource
win7-20220718-en
windows7-x64
5 signatures
150 seconds
General
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Target
dcbl8fi.dll
-
Size
576KB
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MD5
abf64911eb9dd3ca980ca660712567bd
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SHA1
3465929617850b18d612f407e280af28cca72286
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SHA256
c7f410926c4fe17c41e37d581b9d6908582eb821075ba7d4a20f58161ef154a7
-
SHA512
77a321b6b26a5f4a83c87cd56a27e185ac4d880240f6cf747e256898c023475af47cd66f121fbae0996063ad42676f731c8baee803eb41502a50d53b4bf1bc21
Malware Config
Extracted
Family
dridex
Botnet
10444
C2
77.220.64.131:443
5.196.204.251:5037
192.99.41.136:981
24.229.3.146:4664
rc4.plain
rc4.plain
Signatures
-
Blocklisted process makes network request 1 IoCs
Processes:
rundll32.exeflow pid process 58 4016 rundll32.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
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 696 wrote to memory of 4016 696 rundll32.exe rundll32.exe PID 696 wrote to memory of 4016 696 rundll32.exe rundll32.exe PID 696 wrote to memory of 4016 696 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\dcbl8fi.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\dcbl8fi.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/4016-130-0x0000000000000000-mapping.dmp
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memory/4016-131-0x00000000008E0000-0x000000000097A000-memory.dmpFilesize
616KB
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memory/4016-133-0x00000000008E0000-0x000000000097A000-memory.dmpFilesize
616KB
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memory/4016-132-0x00000000008E0000-0x000000000091D000-memory.dmpFilesize
244KB
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memory/4016-135-0x00000000008E1000-0x000000000095A000-memory.dmpFilesize
484KB
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memory/4016-137-0x00000000008E0000-0x000000000097A000-memory.dmpFilesize
616KB