Analysis
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max time kernel
110s -
max time network
110s -
platform
windows10_x64 -
resource
win10v20210410 -
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 behavioral2/memory/4048-116-0x0000000073E50000-0x0000000073F50000-memory.dmp dridex_ldr behavioral2/memory/4048-115-0x0000000073E50000-0x0000000073E8D000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 14 4048 rundll32.exe 16 4048 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 3 IoCs
Processes:
rundll32.exedescription pid process target process PID 2256 wrote to memory of 4048 2256 rundll32.exe rundll32.exe PID 2256 wrote to memory of 4048 2256 rundll32.exe rundll32.exe PID 2256 wrote to memory of 4048 2256 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/4048-114-0x0000000000000000-mapping.dmp
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memory/4048-116-0x0000000073E50000-0x0000000073F50000-memory.dmpFilesize
1024KB
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memory/4048-115-0x0000000073E50000-0x0000000073E8D000-memory.dmpFilesize
244KB
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memory/4048-118-0x00000000007D0000-0x00000000007D1000-memory.dmpFilesize
4KB
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memory/4048-119-0x00000000007B0000-0x00000000007B1000-memory.dmpFilesize
4KB