Analysis
- max time kernel
146s - max time network
67s - platform
windows10_x64 - resource
win10v20201028 - submitted
14/03/2021, 06:38
General
- Target INVOICE NO 6573.exe
- Size 686KB
- Sample210314-w9l8cmgjsx
- SHA256 7e0c1f10cfd225b16e83ecf7bc37a782441b8a96225fff827572bc3a81421bb9
Malware Config
Extracted
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formbook
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http://www.gloomyca.com/chue/
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hairdewproducts.com
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whssboys.net
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visual-promotions.com
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alsgotyaexteriorcleaning.com
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conwayconsultant.com
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sjlartistrydesign.info
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organicroomservice.com
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elatedscents.com
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selfauthering.com
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variablemonsters.com
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thedietcop.com
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openhouseshamptonroads.com
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tyrantthemes.com
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trumppowercatamarans.com
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yznx.xyz
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jshfoodpantry.com
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larmealoeil.com
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biztradelines.com
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axawinterthur.sucks
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inspiredtravels.net
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook Payload 3 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.
- 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 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Modifies Internet Explorer settings 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 13 IoCs
- Suspicious behavior: MapViewOfSection 7 IoCs
- Suspicious use of AdjustPrivilegeToken 7 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\INVOICE NO 6573.exe"C:\Users\Admin\AppData\Local\Temp\INVOICE NO 6573.exe"2⤵
- 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\NBbTScQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1B54.tmp"3⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\INVOICE NO 6573.exe"C:\Users\Admin\AppData\Local\Temp\INVOICE NO 6573.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\autochk.exe"C:\Windows\SysWOW64\autochk.exe"2⤵
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C:\Windows\SysWOW64\svchost.exe"C:\Windows\SysWOW64\svchost.exe"2⤵
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Program Files\Mozilla Firefox\Firefox.exe"C:\Program Files\Mozilla Firefox\Firefox.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/900-20-0x0000000001740000-0x0000000001754000-memory.dmp
memory/900-19-0x0000000001300000-0x0000000001620000-memory.dmp
memory/900-16-0x0000000000400000-0x000000000042E000-memory.dmp
memory/1048-9-0x00000000054A0000-0x00000000054A1000-memory.dmp
memory/1048-3-0x00000000007C0000-0x00000000007C1000-memory.dmp
memory/1048-10-0x0000000005200000-0x0000000005201000-memory.dmp
memory/1048-11-0x00000000051E0000-0x00000000051EC000-memory.dmp
memory/1048-12-0x0000000008090000-0x00000000080F4000-memory.dmp
memory/1048-13-0x0000000008170000-0x0000000008171000-memory.dmp
memory/1048-2-0x0000000073A30000-0x000000007411E000-memory.dmp
memory/1048-8-0x00000000051C0000-0x00000000051C1000-memory.dmp
memory/1048-7-0x0000000005340000-0x0000000005341000-memory.dmp
memory/1048-6-0x0000000005840000-0x0000000005841000-memory.dmp
memory/1048-5-0x00000000052A0000-0x00000000052A1000-memory.dmp
memory/1260-26-0x0000000003420000-0x0000000003740000-memory.dmp
memory/1260-24-0x0000000000D10000-0x0000000000D1C000-memory.dmp
memory/1260-25-0x0000000000AE0000-0x0000000000B0E000-memory.dmp
memory/1260-28-0x0000000003350000-0x00000000033E3000-memory.dmp
memory/3012-21-0x0000000002C70000-0x0000000002D66000-memory.dmp
memory/3028-30-0x00007FF79EC30000-0x00007FF79ECC3000-memory.dmp
memory/3028-31-0x00000196C1540000-0x00000196C1601000-memory.dmp