Analysis
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max time kernel
83s -
max time network
91s -
platform
windows7_x64 -
resource
win7-20220718-en -
resource tags
arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system -
submitted
31-07-2022 05:12
Static task
static1
Behavioral task
behavioral1
Sample
hceioc.dll
Resource
win7-20220718-en
windows7-x64
5 signatures
150 seconds
General
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Target
hceioc.dll
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Size
682KB
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MD5
695d74f98a3530f57efeba7f59f42c70
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SHA1
d240ad10acf8f15e8ac29fa8bee58796900bc55a
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SHA256
cf44d002356277038c8b9ddf6d5be037b25c34fb5e1cd94750bcaeddb103db85
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SHA512
f63280e43b7fb3d048fd1da4d302f57ed0a218dcbedec5e8b188434ff86b78a20bba972e7d9a2b4d981cf1a13433535c976fc3e538c7c5953c568bef718e0b9b
Malware Config
Extracted
Family
dridex
Botnet
10444
C2
77.220.64.37:443
51.15.176.55:3389
85.25.144.36:4643
139.162.53.147:4443
rc4.plain
rc4.plain
Signatures
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Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 3 1628 rundll32.exe 5 1628 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 1744 wrote to memory of 1628 1744 rundll32.exe rundll32.exe PID 1744 wrote to memory of 1628 1744 rundll32.exe rundll32.exe PID 1744 wrote to memory of 1628 1744 rundll32.exe rundll32.exe PID 1744 wrote to memory of 1628 1744 rundll32.exe rundll32.exe PID 1744 wrote to memory of 1628 1744 rundll32.exe rundll32.exe PID 1744 wrote to memory of 1628 1744 rundll32.exe rundll32.exe PID 1744 wrote to memory of 1628 1744 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\hceioc.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\hceioc.dll,#12⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1628-54-0x0000000000000000-mapping.dmp
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memory/1628-55-0x00000000754F1000-0x00000000754F3000-memory.dmpFilesize
8KB
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memory/1628-57-0x0000000074DB0000-0x0000000074E6C000-memory.dmpFilesize
752KB
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memory/1628-56-0x0000000074DB0000-0x0000000074DED000-memory.dmpFilesize
244KB
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memory/1628-59-0x0000000074DB0000-0x0000000074E6C000-memory.dmpFilesize
752KB