Analysis
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max time kernel
85s -
max time network
147s -
submitted
01-01-1970 00:00
Static task
static1
Behavioral task
behavioral1
Sample
tzvqteb.0.dr.dll
Resource
win7-en-20210920
windows7_x64
0 signatures
0 seconds
General
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Target
tzvqteb.0.dr.dll
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Size
750KB
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MD5
982920b38c5cd4405292b6574db8e91d
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SHA1
da09a73c1c1be0ce1c0f0e058b8f32b7d188ca8c
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SHA256
664a9ed7f0380b737fd75b3aa9c234eb15235b0097306e9a46bec74c5584ba6a
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SHA512
ef2957e0107ce7454ff246a5b8868bc00ea9dfb78598aff9951ee605a7f4d43ca13f8015bc9370c77776d25465ed5e711aeb0790f7a30adfcb9505247521a9c3
Malware Config
Extracted
Family
dridex
Botnet
10555
C2
192.46.210.220:443
143.244.140.214:808
45.77.0.96:6891
185.56.219.47:8116
rc4.plain
rc4.plain
Signatures
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Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 24 2696 rundll32.exe 25 2696 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 3748 wrote to memory of 2696 3748 rundll32.exe rundll32.exe PID 3748 wrote to memory of 2696 3748 rundll32.exe rundll32.exe PID 3748 wrote to memory of 2696 3748 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\tzvqteb.0.dr.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\tzvqteb.0.dr.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/2696-115-0x0000000000000000-mapping.dmp
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memory/2696-116-0x0000000073660000-0x0000000073729000-memory.dmpFilesize
804KB
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memory/2696-117-0x0000000073660000-0x000000007369D000-memory.dmpFilesize
244KB
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memory/2696-118-0x0000000073660000-0x0000000073729000-memory.dmpFilesize
804KB
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memory/2696-120-0x0000000000240000-0x0000000000241000-memory.dmpFilesize
4KB
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memory/2696-121-0x00000000002E0000-0x00000000002E1000-memory.dmpFilesize
4KB
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memory/2696-122-0x0000000000240000-0x0000000000241000-memory.dmpFilesize
4KB
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memory/2696-123-0x0000000000240000-0x0000000000241000-memory.dmpFilesize
4KB