Analysis
- max time kernel
147s - max time network
140s - platform
windows10_x64 - resource
win10v20201028 - submitted
15/02/2021, 15:34
General
- Target quotations pdf.exe
- Size 612KB
- Sample210215-vdlfcrn1ce
- SHA256 1ec5aeccf89c5d7a378e443e742e37f05a2aa7cb71150ee0ca4876c6b37d7b4d
Malware Config
Extracted
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formbook
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http://www.brasilseo.com/bft/
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edenicities.com
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buntingfordhomeservices.com
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nuanceproducoes.com
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divasinspire.com
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capiturn.com
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zbjsn.com
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thegioicaytrongnha.com
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featherventure.com
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onbrandtrading.com
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sanguoban.com
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doorman.pro
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ourhomie.net
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iwassickonholiday.com
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mrcskin.com
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reallycoolmask.com
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tkrbeautyinstitut.com
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keytomiami.com
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sesliduybeni.com
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asherwebber.com
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starkweatherwindows.net
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook Payload 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious use of SetThreadContext 3 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 28 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\quotations pdf.exe"C:\Users\Admin\AppData\Local\Temp\quotations pdf.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FpWaZyoK" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD6D9.tmp"3⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\quotations pdf.exe"C:\Users\Admin\AppData\Local\Temp\quotations pdf.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\autofmt.exe"C:\Windows\SysWOW64\autofmt.exe"2⤵
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C:\Windows\SysWOW64\cscript.exe"C:\Windows\SysWOW64\cscript.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe/c del "C:\Users\Admin\AppData\Local\Temp\quotations pdf.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/944-9-0x0000000000FA0000-0x0000000000FB4000-memory.dmp
memory/944-5-0x0000000000400000-0x000000000042E000-memory.dmp
memory/944-8-0x0000000001450000-0x0000000001770000-memory.dmp
memory/1048-2-0x0000000002330000-0x0000000002331000-memory.dmp
memory/1588-14-0x0000000000950000-0x000000000097E000-memory.dmp
memory/1588-13-0x0000000001150000-0x0000000001177000-memory.dmp
memory/1588-15-0x0000000004D50000-0x0000000005070000-memory.dmp
memory/1588-16-0x0000000004C60000-0x0000000004CF3000-memory.dmp
memory/2868-10-0x0000000005C90000-0x0000000005D8C000-memory.dmp
memory/2868-17-0x0000000005FA0000-0x00000000060AF000-memory.dmp