Analysis
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max time kernel
96s -
max time network
133s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
20-04-2021 05:45
Static task
static1
Behavioral task
behavioral1
Sample
7efec75e89d3cbffb5d0b44a62ffde1f2d9c6ab733c2f572e824b4755c3986b2.dll
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
General
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Target
7efec75e89d3cbffb5d0b44a62ffde1f2d9c6ab733c2f572e824b4755c3986b2.dll
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Size
923KB
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MD5
1027d5d393f3d9df94d6e9c1f058d899
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SHA1
9bd8b03c157bdf8b2d2e161b130eaec8fc0b2d38
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SHA256
7efec75e89d3cbffb5d0b44a62ffde1f2d9c6ab733c2f572e824b4755c3986b2
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SHA512
ab42e0d9c251d144856c505dc327c575093e81d8b33b80c9d360bbe9804b813905b197d983ac93ebbe3af3c18ec06069cab997ed9f48cec17fedcd46999f221a
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/4076-116-0x00000000735E0000-0x00000000736E0000-memory.dmp dridex_ldr behavioral2/memory/4076-115-0x00000000735E0000-0x000000007361D000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 16 4076 rundll32.exe 18 4076 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 3944 wrote to memory of 4076 3944 rundll32.exe rundll32.exe PID 3944 wrote to memory of 4076 3944 rundll32.exe rundll32.exe PID 3944 wrote to memory of 4076 3944 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\7efec75e89d3cbffb5d0b44a62ffde1f2d9c6ab733c2f572e824b4755c3986b2.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\7efec75e89d3cbffb5d0b44a62ffde1f2d9c6ab733c2f572e824b4755c3986b2.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/4076-114-0x0000000000000000-mapping.dmp
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memory/4076-116-0x00000000735E0000-0x00000000736E0000-memory.dmpFilesize
1024KB
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memory/4076-115-0x00000000735E0000-0x000000007361D000-memory.dmpFilesize
244KB
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memory/4076-117-0x0000000000670000-0x0000000000671000-memory.dmpFilesize
4KB