Analysis
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max time kernel
128s -
max time network
123s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
26-12-2021 16:09
Static task
static1
Behavioral task
behavioral1
Sample
8337dd22aa86bc357f8bc573441a97c7.dll
Resource
win7-en-20211208
windows7_x64
0 signatures
0 seconds
General
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Target
8337dd22aa86bc357f8bc573441a97c7.dll
-
Size
524KB
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MD5
8337dd22aa86bc357f8bc573441a97c7
-
SHA1
6dc2600455a42651c95c3b612406dabd1182bfee
-
SHA256
0341b7e0b66e27bee166ba1fd9fad700d85e58a257bbfed1b60a662d97fc1617
-
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
-
Processes:
resource yara_rule behavioral1/memory/1668-56-0x0000000074B20000-0x0000000074BA5000-memory.dmp dridex_ldr -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1548 1668 WerFault.exe rundll32.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
WerFault.exepid process 1548 WerFault.exe 1548 WerFault.exe 1548 WerFault.exe 1548 WerFault.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
WerFault.exepid process 1548 WerFault.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
WerFault.exedescription pid process Token: SeDebugPrivilege 1548 WerFault.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 1640 wrote to memory of 1668 1640 rundll32.exe rundll32.exe PID 1640 wrote to memory of 1668 1640 rundll32.exe rundll32.exe PID 1640 wrote to memory of 1668 1640 rundll32.exe rundll32.exe PID 1640 wrote to memory of 1668 1640 rundll32.exe rundll32.exe PID 1640 wrote to memory of 1668 1640 rundll32.exe rundll32.exe PID 1640 wrote to memory of 1668 1640 rundll32.exe rundll32.exe PID 1640 wrote to memory of 1668 1640 rundll32.exe rundll32.exe PID 1668 wrote to memory of 1548 1668 rundll32.exe WerFault.exe PID 1668 wrote to memory of 1548 1668 rundll32.exe WerFault.exe PID 1668 wrote to memory of 1548 1668 rundll32.exe WerFault.exe PID 1668 wrote to memory of 1548 1668 rundll32.exe WerFault.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\8337dd22aa86bc357f8bc573441a97c7.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\8337dd22aa86bc357f8bc573441a97c7.dll,#12⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1668 -s 3243⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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memory/1548-58-0x0000000000000000-mapping.dmp
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memory/1548-60-0x00000000002B0000-0x0000000000310000-memory.dmpFilesize
384KB
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memory/1668-54-0x0000000000000000-mapping.dmp
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memory/1668-55-0x00000000762C1000-0x00000000762C3000-memory.dmpFilesize
8KB
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memory/1668-56-0x0000000074B20000-0x0000000074BA5000-memory.dmpFilesize
532KB
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memory/1668-59-0x00000000000C0000-0x00000000000C6000-memory.dmpFilesize
24KB