Analysis
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max time kernel
30s -
max time network
88s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
03-03-2021 19:05
Static task
static1
Behavioral task
behavioral1
Sample
f06f58c991c3027d4c5d3dc17bb944a6db160867b460e0baa408fc74df1c688c.dll
Resource
win7v20201028
0 signatures
0 seconds
General
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Target
f06f58c991c3027d4c5d3dc17bb944a6db160867b460e0baa408fc74df1c688c.dll
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Size
188KB
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MD5
629b53ddabf28c5b67916ff5776c977c
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SHA1
9e46b24d513d4c75d4e87a413075f776bf0c84c8
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SHA256
f06f58c991c3027d4c5d3dc17bb944a6db160867b460e0baa408fc74df1c688c
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SHA512
6787fdac970e4c2349013df410245c85a464006e57e47615a77935e95183ceeabb5dd5949de7a102bb2c81d430474518d9cce3d3244c45604d4cb1e99b816108
Malware Config
Extracted
Family
dridex
Botnet
111
C2
116.251.211.158:443
216.10.242.142:6601
37.247.35.137:6601
rc4.plain
rc4.plain
Signatures
-
Processes:
resource yara_rule behavioral1/memory/1496-4-0x0000000075240000-0x0000000075271000-memory.dmp dridex_ldr behavioral1/memory/1496-6-0x0000000075240000-0x000000007525F000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 4 1496 rundll32.exe 7 1496 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 1632 wrote to memory of 1496 1632 rundll32.exe rundll32.exe PID 1632 wrote to memory of 1496 1632 rundll32.exe rundll32.exe PID 1632 wrote to memory of 1496 1632 rundll32.exe rundll32.exe PID 1632 wrote to memory of 1496 1632 rundll32.exe rundll32.exe PID 1632 wrote to memory of 1496 1632 rundll32.exe rundll32.exe PID 1632 wrote to memory of 1496 1632 rundll32.exe rundll32.exe PID 1632 wrote to memory of 1496 1632 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\f06f58c991c3027d4c5d3dc17bb944a6db160867b460e0baa408fc74df1c688c.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\f06f58c991c3027d4c5d3dc17bb944a6db160867b460e0baa408fc74df1c688c.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/1496-2-0x0000000000000000-mapping.dmp
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memory/1496-3-0x0000000076341000-0x0000000076343000-memory.dmpFilesize
8KB
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memory/1496-4-0x0000000075240000-0x0000000075271000-memory.dmpFilesize
196KB
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memory/1496-5-0x0000000000180000-0x0000000000186000-memory.dmpFilesize
24KB
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memory/1496-6-0x0000000075240000-0x000000007525F000-memory.dmpFilesize
124KB
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memory/1576-7-0x000007FEF6840000-0x000007FEF6ABA000-memory.dmpFilesize
2.5MB