Analysis
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max time kernel
26s -
max time network
86s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
05-03-2021 00:09
Static task
static1
Behavioral task
behavioral1
Sample
942785547073f51fe5ac8399b2cf38392f316b77ce11700cf44343af80cc030e.dll
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
General
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Target
942785547073f51fe5ac8399b2cf38392f316b77ce11700cf44343af80cc030e.dll
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Size
196KB
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MD5
102c734060c71cec7b0769f19c47f8b0
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SHA1
cb7a39309ece9b27a3a536f06bb9dd8afe208304
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SHA256
942785547073f51fe5ac8399b2cf38392f316b77ce11700cf44343af80cc030e
-
SHA512
94cd929402c4458fe365f474db5a7d6f6c98b66c5bbaed3ecb42c067a0b4acff87d4fe7e21fc06fbe0ff21b08ba2b6b7ac70117685e82d6d78075ae054031615
Malware Config
Extracted
Family
dridex
Botnet
111
C2
37.247.35.132:443
50.243.30.51:6601
162.241.204.234:6516
rc4.plain
rc4.plain
Signatures
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Processes:
resource yara_rule behavioral1/memory/1996-4-0x00000000743C0000-0x00000000743F3000-memory.dmp dridex_ldr behavioral1/memory/1996-6-0x00000000743C0000-0x00000000743DF000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 4 1996 rundll32.exe 7 1996 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 1932 wrote to memory of 1996 1932 rundll32.exe rundll32.exe PID 1932 wrote to memory of 1996 1932 rundll32.exe rundll32.exe PID 1932 wrote to memory of 1996 1932 rundll32.exe rundll32.exe PID 1932 wrote to memory of 1996 1932 rundll32.exe rundll32.exe PID 1932 wrote to memory of 1996 1932 rundll32.exe rundll32.exe PID 1932 wrote to memory of 1996 1932 rundll32.exe rundll32.exe PID 1932 wrote to memory of 1996 1932 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\942785547073f51fe5ac8399b2cf38392f316b77ce11700cf44343af80cc030e.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\942785547073f51fe5ac8399b2cf38392f316b77ce11700cf44343af80cc030e.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/752-7-0x000007FEF6E90000-0x000007FEF710A000-memory.dmpFilesize
2.5MB
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memory/1996-2-0x0000000000000000-mapping.dmp
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memory/1996-3-0x00000000750C1000-0x00000000750C3000-memory.dmpFilesize
8KB
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memory/1996-4-0x00000000743C0000-0x00000000743F3000-memory.dmpFilesize
204KB
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memory/1996-5-0x0000000000280000-0x0000000000286000-memory.dmpFilesize
24KB
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memory/1996-6-0x00000000743C0000-0x00000000743DF000-memory.dmpFilesize
124KB