Analysis
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max time kernel
17s -
max time network
113s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
09-11-2020 20:43
Static task
static1
Behavioral task
behavioral1
Sample
y.rb.dll
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
General
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Target
y.rb.dll
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Size
421KB
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MD5
838c6c76b5f43793ba6a966ff3cfe1bf
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SHA1
e3e98f6f780c54a86af046a8612b984dbbe16a24
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SHA256
4f61fcafad37cc40632ad85e4f8aa503d63700761e49db19c122bffa7084e4ec
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SHA512
cc09c8b79f082046341adc5142ac9c22eea8ef3941d703b3f03a9a3cedf59920eeebfe83d89a6ee8e074ec7168156208b461a18f66c5ceb80b6d6def36eab6be
Malware Config
Extracted
Family
ursnif
Attributes
- dga_base_url
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dga_crc
0
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dga_season
0
- dga_tlds
- dns_servers
Signatures
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 3680 4780 WerFault.exe rundll32.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
Processes:
WerFault.exepid process 3680 WerFault.exe 3680 WerFault.exe 3680 WerFault.exe 3680 WerFault.exe 3680 WerFault.exe 3680 WerFault.exe 3680 WerFault.exe 3680 WerFault.exe 3680 WerFault.exe 3680 WerFault.exe 3680 WerFault.exe 3680 WerFault.exe 3680 WerFault.exe 3680 WerFault.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
WerFault.exedescription pid process Token: SeRestorePrivilege 3680 WerFault.exe Token: SeBackupPrivilege 3680 WerFault.exe Token: SeDebugPrivilege 3680 WerFault.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
rundll32.exedescription pid process target process PID 4768 wrote to memory of 4780 4768 rundll32.exe rundll32.exe PID 4768 wrote to memory of 4780 4768 rundll32.exe rundll32.exe PID 4768 wrote to memory of 4780 4768 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\y.rb.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4768 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\y.rb.dll,#12⤵PID:4780
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4780 -s 6283⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3680
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