Analysis
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max time kernel
120s -
max time network
122s -
platform
windows10_x64 -
resource
win10-en-20211104 -
submitted
16-11-2021 21:40
Static task
static1
General
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Target
a6252913cddf22b791aef1cccfc484a1cff18c8c261a6cf2675138d1203769db.dll
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Size
252KB
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MD5
0dfe0242f87cd462ab1ddc8b1cf7e3a8
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SHA1
83bd486dfb7fb0079c6ab281edd8c619b5178224
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SHA256
a6252913cddf22b791aef1cccfc484a1cff18c8c261a6cf2675138d1203769db
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SHA512
12af16d0ebecd2561ee20fae5f1face1409064cb55fbf47ee05825af59033b44edad7c4aa04de7d36f030ef2524333d962393f7b5e865663fbb8c471c03fb61e
Malware Config
Extracted
emotet
Epoch4
81.0.236.93:443
94.177.248.64:443
66.42.55.5:7080
103.8.26.103:8080
185.184.25.237:8080
45.76.176.10:8080
188.93.125.116:8080
103.8.26.102:8080
178.79.147.66:8080
58.227.42.236:80
45.118.135.203:7080
103.75.201.2:443
195.154.133.20:443
45.142.114.231:8080
212.237.5.209:443
207.38.84.195:8080
104.251.214.46:8080
138.185.72.26:8080
51.68.175.8:8080
210.57.217.132:8080
Signatures
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suricata: ET MALWARE ABUSE.CH SSL Blacklist Malicious SSL certificate detected (Dridex/Trickbot CnC)
suricata: ET MALWARE ABUSE.CH SSL Blacklist Malicious SSL certificate detected (Dridex/Trickbot CnC)
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suricata: ET MALWARE W32/Emotet CnC Beacon 3
suricata: ET MALWARE W32/Emotet CnC Beacon 3
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Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 18 688 rundll32.exe 23 688 rundll32.exe -
Drops file in System32 directory 1 IoCs
Processes:
rundll32.exedescription ioc process File opened for modification C:\Windows\SysWOW64\Eemxmnsjstillcpf\xiaa.ofv rundll32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
rundll32.exepid process 688 rundll32.exe 688 rundll32.exe -
Suspicious behavior: RenamesItself 1 IoCs
Processes:
rundll32.exepid process 3924 rundll32.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
rundll32.exerundll32.exerundll32.exerundll32.exedescription pid process target process PID 3688 wrote to memory of 3144 3688 rundll32.exe rundll32.exe PID 3688 wrote to memory of 3144 3688 rundll32.exe rundll32.exe PID 3688 wrote to memory of 3144 3688 rundll32.exe rundll32.exe PID 3144 wrote to memory of 3924 3144 rundll32.exe rundll32.exe PID 3144 wrote to memory of 3924 3144 rundll32.exe rundll32.exe PID 3144 wrote to memory of 3924 3144 rundll32.exe rundll32.exe PID 3924 wrote to memory of 1176 3924 rundll32.exe rundll32.exe PID 3924 wrote to memory of 1176 3924 rundll32.exe rundll32.exe PID 3924 wrote to memory of 1176 3924 rundll32.exe rundll32.exe PID 1176 wrote to memory of 688 1176 rundll32.exe rundll32.exe PID 1176 wrote to memory of 688 1176 rundll32.exe rundll32.exe PID 1176 wrote to memory of 688 1176 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\a6252913cddf22b791aef1cccfc484a1cff18c8c261a6cf2675138d1203769db.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3688 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\a6252913cddf22b791aef1cccfc484a1cff18c8c261a6cf2675138d1203769db.dll,#12⤵
- Suspicious use of WriteProcessMemory
PID:3144 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\a6252913cddf22b791aef1cccfc484a1cff18c8c261a6cf2675138d1203769db.dll",Control_RunDLL3⤵
- Drops file in System32 directory
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:3924 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Eemxmnsjstillcpf\xiaa.ofv",KTLjjwj4⤵
- Suspicious use of WriteProcessMemory
PID:1176 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Eemxmnsjstillcpf\xiaa.ofv",Control_RunDLL5⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
PID:688