Analysis
-
max time kernel
150s -
max time network
149s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
18-11-2020 12:37
Behavioral task
behavioral1
Sample
avq2x9q.dll
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
General
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Target
avq2x9q.dll
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Size
539KB
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MD5
fc8998b5afaa9a1d1c6f1eaf8641a967
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SHA1
db53da2690b86741ddd7837a974bd31cb063270e
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SHA256
d49f5b9b3da2c5ae18f28c40d008544337ba6e5febd76a8c88619079d0c262ca
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SHA512
89e3d4e2ba2054d737b118d4ad7772afeb26a407b5ec010a1cf1429e162a11eccfd8e6f2289c6efa9920932d49dee14f099966175138b3623b29e073bdb07081
Malware Config
Extracted
Family
dridex
Botnet
10444
C2
162.241.44.26:9443
192.232.229.53:4443
77.220.64.34:443
193.90.12.121:3098
rc4.plain
rc4.plain
Signatures
-
Processes:
resource yara_rule behavioral1/memory/1492-1-0x0000000001E10000-0x0000000001E4D000-memory.dmp dridex_ldr -
Blocklisted process makes network request 4 IoCs
Processes:
rundll32.exeflow pid process 4 1492 rundll32.exe 7 1492 rundll32.exe 8 1492 rundll32.exe 10 1492 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 1688 wrote to memory of 1492 1688 rundll32.exe rundll32.exe PID 1688 wrote to memory of 1492 1688 rundll32.exe rundll32.exe PID 1688 wrote to memory of 1492 1688 rundll32.exe rundll32.exe PID 1688 wrote to memory of 1492 1688 rundll32.exe rundll32.exe PID 1688 wrote to memory of 1492 1688 rundll32.exe rundll32.exe PID 1688 wrote to memory of 1492 1688 rundll32.exe rundll32.exe PID 1688 wrote to memory of 1492 1688 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\avq2x9q.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\avq2x9q.dll,#12⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled