Analysis
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max time kernel
30s -
max time network
141s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
04-03-2021 23:08
Static task
static1
Behavioral task
behavioral1
Sample
acf3c0921159622c9c9457f0b063af1855803780619d0a1e4b9098766ed5b49e.dll
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
General
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Target
acf3c0921159622c9c9457f0b063af1855803780619d0a1e4b9098766ed5b49e.dll
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Size
196KB
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MD5
f59d5bcf277b4a33e4461ebf03c32945
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SHA1
66e62e7ae92f6cba50d97e9dee1243345e3931d2
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SHA256
acf3c0921159622c9c9457f0b063af1855803780619d0a1e4b9098766ed5b49e
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SHA512
08b1f65fb241a58f21aaaec419123d43ebcd05502226d507a9cdae3d39a870d3c2477a5b9735fe36c70a034085c1c459b997c3f9a9b7923fd7a6747b581423e0
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 behavioral2/memory/3608-3-0x0000000073540000-0x0000000073573000-memory.dmp dridex_ldr behavioral2/memory/3608-5-0x0000000073540000-0x000000007355F000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 15 3608 rundll32.exe 17 3608 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 796 wrote to memory of 3608 796 rundll32.exe rundll32.exe PID 796 wrote to memory of 3608 796 rundll32.exe rundll32.exe PID 796 wrote to memory of 3608 796 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\acf3c0921159622c9c9457f0b063af1855803780619d0a1e4b9098766ed5b49e.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\acf3c0921159622c9c9457f0b063af1855803780619d0a1e4b9098766ed5b49e.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/3608-2-0x0000000000000000-mapping.dmp
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memory/3608-3-0x0000000073540000-0x0000000073573000-memory.dmpFilesize
204KB
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memory/3608-4-0x0000000002A90000-0x0000000002A96000-memory.dmpFilesize
24KB
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memory/3608-5-0x0000000073540000-0x000000007355F000-memory.dmpFilesize
124KB