Analysis
- max time kernel
71s - max time network
117s - platform
windows10_x64 - resource
win10v20201028 - submitted
05/11/2020, 09:48
General
- Target E004778244.COM.exe
- Size 887KB
- Sample201105-kfz2ycedt2
- SHA256 0b27fbcb91a355c14ee1367af92b962f1901e4d48a08e719f6e4dada1d599130
Malware Config
Signatures
- MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
- MassLogger Main Payload 2 IoCs
- Looks for VirtualBox Guest Additions in registry 2 TTPs
- Looks for VMWare Tools registry key 2 TTPs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Deletes itself 1 IoCs
- Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
- Suspicious use of SetThreadContext 1 IoCs
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 9 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 20 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\E004778244.COM.exe"C:\Users\Admin\AppData\Local\Temp\E004778244.COM.exe"1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VQrDUXCI" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFE3C.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\E004778244.COM.exe"C:\Users\Admin\AppData\Local\Temp\E004778244.COM.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\E004778244.COM.exe"C:\Users\Admin\AppData\Local\Temp\E004778244.COM.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\E004778244.COM.exe"C:\Users\Admin\AppData\Local\Temp\E004778244.COM.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" Start-Sleep -Seconds 2; Remove-Item -path 'C:\Users\Admin\AppData\Local\Temp\E004778244.COM.exe'3⤵
- Deletes itself
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/532-34-0x00000000094B0000-0x00000000094B1000-memory.dmp
memory/532-28-0x0000000006D40000-0x0000000006D41000-memory.dmp
memory/532-36-0x0000000008ED0000-0x0000000008ED1000-memory.dmp
memory/532-33-0x0000000007D40000-0x0000000007D41000-memory.dmp
memory/532-32-0x0000000007F70000-0x0000000007F71000-memory.dmp
memory/532-31-0x0000000007470000-0x0000000007471000-memory.dmp
memory/532-30-0x00000000076E0000-0x00000000076E1000-memory.dmp
memory/532-35-0x0000000008A50000-0x0000000008A51000-memory.dmp
memory/532-27-0x0000000006CA0000-0x0000000006CA1000-memory.dmp
memory/532-37-0x00000000068C0000-0x00000000068C1000-memory.dmp
memory/532-26-0x0000000006DF0000-0x0000000006DF1000-memory.dmp
memory/532-25-0x0000000002990000-0x0000000002991000-memory.dmp
memory/532-24-0x00000000733F0000-0x0000000073ADE000-memory.dmp
memory/4580-14-0x0000000000400000-0x0000000000486000-memory.dmp
memory/4580-16-0x0000000073370000-0x0000000073A5E000-memory.dmp
memory/4760-8-0x0000000004F50000-0x0000000004F5B000-memory.dmp
memory/4760-11-0x0000000006050000-0x0000000006051000-memory.dmp
memory/4760-10-0x0000000005DE0000-0x0000000005E63000-memory.dmp
memory/4760-9-0x0000000005D10000-0x0000000005DC7000-memory.dmp
memory/4760-0-0x0000000073370000-0x0000000073A5E000-memory.dmp
memory/4760-7-0x00000000051F0000-0x00000000051F1000-memory.dmp
memory/4760-6-0x0000000004F30000-0x0000000004F31000-memory.dmp
memory/4760-5-0x0000000004F90000-0x0000000004F91000-memory.dmp
memory/4760-4-0x0000000005490000-0x0000000005491000-memory.dmp
memory/4760-3-0x0000000004E40000-0x0000000004E41000-memory.dmp
memory/4760-1-0x00000000005A0000-0x00000000005A1000-memory.dmp