Analysis
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max time kernel
35s -
max time network
43s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
19-04-2021 18:14
Static task
static1
General
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Target
da81aa0dd37baccdbdc7f7f9a3619d6e85155f8bd67fcd2fafdbe534443fdc0c.dll
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Size
966KB
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MD5
340994098deb6bf6fa91f73350af7c15
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SHA1
a13e3401f4a3741bdcb2f16cb0c111b04ce318fb
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SHA256
da81aa0dd37baccdbdc7f7f9a3619d6e85155f8bd67fcd2fafdbe534443fdc0c
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SHA512
3ce706f04dbe866ac020648bc58a5940b06dfc8d23e87ea570d2af0037b6bd320976f87168ec327d9a442c3762c9e7414cbf026b89b736bb42e2d20e269ad30d
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/3952-116-0x0000000074290000-0x00000000743A6000-memory.dmp dridex_ldr behavioral1/memory/3952-115-0x0000000074290000-0x00000000742CD000-memory.dmp dridex_ldr -
Blocklisted process makes network request 1 IoCs
Processes:
rundll32.exeflow pid process 17 3952 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 3200 wrote to memory of 3952 3200 rundll32.exe rundll32.exe PID 3200 wrote to memory of 3952 3200 rundll32.exe rundll32.exe PID 3200 wrote to memory of 3952 3200 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\da81aa0dd37baccdbdc7f7f9a3619d6e85155f8bd67fcd2fafdbe534443fdc0c.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\da81aa0dd37baccdbdc7f7f9a3619d6e85155f8bd67fcd2fafdbe534443fdc0c.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/3952-114-0x0000000000000000-mapping.dmp
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memory/3952-116-0x0000000074290000-0x00000000743A6000-memory.dmpFilesize
1.1MB
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memory/3952-115-0x0000000074290000-0x00000000742CD000-memory.dmpFilesize
244KB
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memory/3952-179-0x00000000030B0000-0x00000000030B1000-memory.dmpFilesize
4KB