Analysis
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max time kernel
120s -
max time network
123s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
26-12-2021 15:37
Static task
static1
General
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Target
0341b7e0b66e27bee166ba1fd9fad700d85e58a257bbfed1b60a662d97fc1617.dll
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Size
524KB
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MD5
8337dd22aa86bc357f8bc573441a97c7
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SHA1
6dc2600455a42651c95c3b612406dabd1182bfee
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SHA256
0341b7e0b66e27bee166ba1fd9fad700d85e58a257bbfed1b60a662d97fc1617
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SHA512
6a2572851e1ef774c35bf733455db6450f0c668d907f6617363037cb92277a022878c6fe7e652d035ed08f75f60c4a6463508a5feb7afb9a866c28d13577748c
Malware Config
Extracted
Family
dridex
Botnet
22201
C2
104.36.167.47:443
188.40.48.93:4664
162.241.33.132:9217
217.160.5.104:593
rc4.plain
rc4.plain
Signatures
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Processes:
resource yara_rule behavioral1/memory/3724-117-0x0000000073F20000-0x0000000073FA5000-memory.dmp dridex_ldr -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 4212 3724 WerFault.exe rundll32.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
Processes:
WerFault.exepid process 4212 WerFault.exe 4212 WerFault.exe 4212 WerFault.exe 4212 WerFault.exe 4212 WerFault.exe 4212 WerFault.exe 4212 WerFault.exe 4212 WerFault.exe 4212 WerFault.exe 4212 WerFault.exe 4212 WerFault.exe 4212 WerFault.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
WerFault.exedescription pid process Token: SeRestorePrivilege 4212 WerFault.exe Token: SeBackupPrivilege 4212 WerFault.exe Token: SeDebugPrivilege 4212 WerFault.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
rundll32.exedescription pid process target process PID 3664 wrote to memory of 3724 3664 rundll32.exe rundll32.exe PID 3664 wrote to memory of 3724 3664 rundll32.exe rundll32.exe PID 3664 wrote to memory of 3724 3664 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\0341b7e0b66e27bee166ba1fd9fad700d85e58a257bbfed1b60a662d97fc1617.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\0341b7e0b66e27bee166ba1fd9fad700d85e58a257bbfed1b60a662d97fc1617.dll,#12⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3724 -s 6883⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken