Analysis
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max time kernel
47s -
max time network
62s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
11-06-2022 16:45
Static task
static1
Behavioral task
behavioral1
Sample
kznyhj.dll
Resource
win7-20220414-en
windows7_x64
0 signatures
0 seconds
General
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Target
kznyhj.dll
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Size
1.0MB
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MD5
54406a46537707356be7ae715803089c
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SHA1
81a90d9e6b412cf9a6c834927e8ebeb939bc12aa
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SHA256
60e734bb4ac85f8a03cfa3147c7f887b2c043e66c64d6ebd1091771c07b779a4
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SHA512
7bbd7efa002c17492712dd5d929957966c8ded8a5080f5dc53f71c3ec96282f919cb6e64d649d199aa38b6c0b982fc1017b379d7898b04093c7c297d6423addc
Malware Config
Extracted
Family
dridex
Botnet
10444
C2
192.46.210.220:443
143.244.140.214:808
45.77.0.96:6891
185.56.219.47:8116
rc4.plain
rc4.plain
Signatures
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Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 2 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 632 wrote to memory of 1628 632 rundll32.exe rundll32.exe PID 632 wrote to memory of 1628 632 rundll32.exe rundll32.exe PID 632 wrote to memory of 1628 632 rundll32.exe rundll32.exe PID 632 wrote to memory of 1628 632 rundll32.exe rundll32.exe PID 632 wrote to memory of 1628 632 rundll32.exe rundll32.exe PID 632 wrote to memory of 1628 632 rundll32.exe rundll32.exe PID 632 wrote to memory of 1628 632 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\kznyhj.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\kznyhj.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/1628-55-0x0000000075391000-0x0000000075393000-memory.dmpFilesize
8KB
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memory/1628-56-0x0000000074D70000-0x0000000074E8B000-memory.dmpFilesize
1.1MB
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memory/1628-57-0x0000000074D70000-0x0000000074DAD000-memory.dmpFilesize
244KB
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memory/1628-59-0x0000000074D70000-0x0000000074E8B000-memory.dmpFilesize
1.1MB
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memory/1628-61-0x0000000074D70000-0x0000000074E8B000-memory.dmpFilesize
1.1MB