Analysis
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max time kernel
45s -
max time network
102s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
20-04-2021 05:45
Static task
static1
Behavioral task
behavioral1
Sample
c87fce2e5c2e8682924f080ba2eaa6224628502c34fbe8ff94959a0dc4d5afd1.dll
Resource
win7v20210408
windows7_x64
0 signatures
0 seconds
General
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Target
c87fce2e5c2e8682924f080ba2eaa6224628502c34fbe8ff94959a0dc4d5afd1.dll
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Size
923KB
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MD5
0bc8062c38ad87810d19855311fb03e9
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SHA1
4f7dfc05f06f241d89043a675d7b300dd5e660bc
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SHA256
c87fce2e5c2e8682924f080ba2eaa6224628502c34fbe8ff94959a0dc4d5afd1
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SHA512
bf43a772c1338b7892686fdbd31f45f3752f1c056f05bbb20d6302ff601ed027aa05fd9cdedefa5ac638e518684c1bee536c420f6207a13f02bf722ad2b7d5fe
Malware Config
Extracted
Family
dridex
Botnet
10444
C2
146.185.170.249:443
62.75.251.60:6601
185.148.168.25:2303
rc4.plain
rc4.plain
Signatures
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Processes:
resource yara_rule behavioral1/memory/1940-62-0x0000000075060000-0x000000007509D000-memory.dmp dridex_ldr behavioral1/memory/1940-63-0x0000000075060000-0x0000000075160000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 4 1940 rundll32.exe 7 1940 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 1768 wrote to memory of 1940 1768 rundll32.exe rundll32.exe PID 1768 wrote to memory of 1940 1768 rundll32.exe rundll32.exe PID 1768 wrote to memory of 1940 1768 rundll32.exe rundll32.exe PID 1768 wrote to memory of 1940 1768 rundll32.exe rundll32.exe PID 1768 wrote to memory of 1940 1768 rundll32.exe rundll32.exe PID 1768 wrote to memory of 1940 1768 rundll32.exe rundll32.exe PID 1768 wrote to memory of 1940 1768 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\c87fce2e5c2e8682924f080ba2eaa6224628502c34fbe8ff94959a0dc4d5afd1.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\c87fce2e5c2e8682924f080ba2eaa6224628502c34fbe8ff94959a0dc4d5afd1.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/1940-60-0x0000000000000000-mapping.dmp
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memory/1940-61-0x0000000075D11000-0x0000000075D13000-memory.dmpFilesize
8KB
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memory/1940-62-0x0000000075060000-0x000000007509D000-memory.dmpFilesize
244KB
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memory/1940-63-0x0000000075060000-0x0000000075160000-memory.dmpFilesize
1024KB
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memory/1940-64-0x0000000000170000-0x0000000000171000-memory.dmpFilesize
4KB