Analysis
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max time kernel
131s -
max time network
157s -
platform
windows10_x64 -
resource
win10-en-20210920 -
submitted
13-10-2021 13:19
Static task
static1
General
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Target
88a94091ec39cf0fcb60f326e81f2a12ac40c6f41072f04dd0088d9c435e2d31.dll
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Size
604KB
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MD5
5a5bbd8c04147c15575a07e24bdef22e
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SHA1
e4506ef09698fb678f9e11190723499e0ee3b0a7
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SHA256
88a94091ec39cf0fcb60f326e81f2a12ac40c6f41072f04dd0088d9c435e2d31
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SHA512
11eeabbec6979fadd57d7c8834574b929abdf671d418044042dae8f2e0a24ebeb68a5876eb6394b720c5ae8858792ea8515926d13e1cf4b5a3bd390caabd818c
Malware Config
Extracted
Family
dridex
Botnet
10444
C2
174.128.245.202:443
51.83.3.52:13786
69.64.50.41:6602
rc4.plain
rc4.plain
Signatures
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Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 28 2472 rundll32.exe 30 2472 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 2416 wrote to memory of 2472 2416 rundll32.exe rundll32.exe PID 2416 wrote to memory of 2472 2416 rundll32.exe rundll32.exe PID 2416 wrote to memory of 2472 2416 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\88a94091ec39cf0fcb60f326e81f2a12ac40c6f41072f04dd0088d9c435e2d31.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\88a94091ec39cf0fcb60f326e81f2a12ac40c6f41072f04dd0088d9c435e2d31.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/2472-115-0x0000000000000000-mapping.dmp
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memory/2472-116-0x0000000000400000-0x0000000000530000-memory.dmpFilesize
1.2MB
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memory/2472-117-0x0000000000400000-0x000000000043D000-memory.dmpFilesize
244KB
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memory/2472-118-0x0000000000400000-0x0000000000530000-memory.dmpFilesize
1.2MB
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memory/2472-121-0x0000000003230000-0x0000000003231000-memory.dmpFilesize
4KB
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memory/2472-120-0x0000000003230000-0x0000000003231000-memory.dmpFilesize
4KB
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memory/2472-122-0x0000000003230000-0x0000000003231000-memory.dmpFilesize
4KB
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memory/2472-134-0x0000000002FB0000-0x00000000030FA000-memory.dmpFilesize
1.3MB