Analysis
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max time kernel
119s -
max time network
124s -
platform
windows10_x64 -
resource
win10-en-20210920 -
submitted
20-10-2021 19:50
Static task
static1
Behavioral task
behavioral1
Sample
7_Microsoft.Data.Entity.Build.Tasks.dll
Resource
win7-en-20210920
windows7_x64
0 signatures
0 seconds
General
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Target
7_Microsoft.Data.Entity.Build.Tasks.dll
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Size
180KB
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MD5
aba5b0df02c421887cd5899a1e3ee976
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SHA1
f126397b4e63a9dc647172ee71c737d4271e0522
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SHA256
8256436d8c0184c0566d594aab21931714c71217fbd20b4f53b1c4a58daaedd0
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SHA512
650e5ba28d642a225f605659538a203c694b09bb00f60c68a5b5d9b2db8ba09a25c780edb1da994e994c49baf6e67200fd63b991592a9da62e63cc99300645bc
Malware Config
Extracted
Family
dridex
Botnet
22201
C2
155.138.203.91:443
207.180.220.242:8116
46.101.142.214:6891
rc4.plain
rc4.plain
Signatures
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Processes:
resource yara_rule behavioral2/memory/2220-116-0x0000000073820000-0x000000007384F000-memory.dmp dridex_ldr -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 4076 2220 WerFault.exe rundll32.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
Processes:
WerFault.exepid process 4076 WerFault.exe 4076 WerFault.exe 4076 WerFault.exe 4076 WerFault.exe 4076 WerFault.exe 4076 WerFault.exe 4076 WerFault.exe 4076 WerFault.exe 4076 WerFault.exe 4076 WerFault.exe 4076 WerFault.exe 4076 WerFault.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
WerFault.exedescription pid process Token: SeRestorePrivilege 4076 WerFault.exe Token: SeBackupPrivilege 4076 WerFault.exe Token: SeDebugPrivilege 4076 WerFault.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
rundll32.exedescription pid process target process PID 3580 wrote to memory of 2220 3580 rundll32.exe rundll32.exe PID 3580 wrote to memory of 2220 3580 rundll32.exe rundll32.exe PID 3580 wrote to memory of 2220 3580 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\7_Microsoft.Data.Entity.Build.Tasks.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\7_Microsoft.Data.Entity.Build.Tasks.dll,#12⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2220 -s 6203⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken