Analysis
- max time kernel
151s - max time network
178s - platform
windows7_x64 - resource
win7v20210408 - submitted
28/09/2021, 10:20
General
- Target PO.doc
- Size 13KB
- Sample210928-mdfyfsbgam
- SHA256 443ffe0efb43ac5c04e23e749b2908a8e723462f409208e0f4cf35046e3b129d
Malware Config
Extracted
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formbook
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4.1
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if60
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http://www.handelsbetriebposavec.com/if60/
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babyjames.space
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dtjug.com
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bhagteri.com
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havplan.com
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gentlesuccess.net
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negativeminus.com
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utesm.com
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ngomen.online
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abohemianeducation.com
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hyper-quote.com
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poseidonflooring.com
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theshopdental.com
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consumelocaloficial.com
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tineue.com
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traerpolio.com
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somnambulantfarms.com
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sugarhillclassiccars.com
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brasseriedufayard.com
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replacerglass.net
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lazyguysmarketing.com
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
- Formbook Payload 3 IoCs
- Blocklisted process makes network request 1 IoCs
- Downloads MZ/PE file
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 1 IoCs
- Suspicious use of SetThreadContext 4 IoCs
- Drops file in Windows directory 1 IoCs
- Office loads VBA resources, possible macro or embedded object present
- Launches Equation Editor 1 TTPs 1 IoCs
Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.
- Modifies Internet Explorer settings 1 TTPs 9 IoCs
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious behavior: EnumeratesProcesses 19 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 6 IoCs
- Suspicious use of AdjustPrivilegeToken 6 IoCs
- Suspicious use of FindShellTrayWindow 6 IoCs
- Suspicious use of SendNotifyMessage 6 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 23 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\PO.doc"2⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122883⤵
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C:\Windows\SysWOW64\wininit.exe"C:\Windows\SysWOW64\wininit.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\Roaming\ibefrankhq4862.exe"3⤵
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C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\ibefrankhq4862.exe"C:\Users\Admin\AppData\Roaming\ibefrankhq4862.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\ibefrankhq4862.exe"C:\Users\Admin\AppData\Roaming\ibefrankhq4862.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/1208-92-0x00000000074D0000-0x000000000764B000-memory.dmp
memory/1208-84-0x0000000007340000-0x00000000074CF000-memory.dmp
memory/1208-82-0x0000000004CF0000-0x0000000004E1E000-memory.dmp
memory/1208-94-0x000007FF640D0000-0x000007FF640DA000-memory.dmp
memory/1208-93-0x000007FEF5750000-0x000007FEF5893000-memory.dmp
memory/1252-88-0x00000000000E0000-0x000000000010F000-memory.dmp
memory/1252-90-0x0000000000950000-0x00000000009E3000-memory.dmp
memory/1252-89-0x0000000002130000-0x0000000002433000-memory.dmp
memory/1252-87-0x0000000000D10000-0x0000000000D2A000-memory.dmp
memory/1288-74-0x000007FEFBED1000-0x000007FEFBED3000-memory.dmp
memory/1652-91-0x000000005FFF0000-0x0000000060000000-memory.dmp
memory/1652-60-0x00000000729D1000-0x00000000729D4000-memory.dmp
memory/1652-63-0x0000000076641000-0x0000000076643000-memory.dmp
memory/1652-62-0x000000005FFF0000-0x0000000060000000-memory.dmp
memory/1652-61-0x0000000070451000-0x0000000070453000-memory.dmp
memory/1720-77-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1720-83-0x0000000000190000-0x00000000001A4000-memory.dmp
memory/1720-80-0x0000000000A40000-0x0000000000D43000-memory.dmp
memory/1720-81-0x0000000000140000-0x0000000000154000-memory.dmp
memory/1832-76-0x0000000000A80000-0x0000000000AB4000-memory.dmp
memory/1832-75-0x0000000004EC0000-0x0000000004F24000-memory.dmp
memory/1832-72-0x0000000000390000-0x0000000000397000-memory.dmp
memory/1832-71-0x00000000049C0000-0x00000000049C1000-memory.dmp
memory/1832-69-0x0000000000DD0000-0x0000000000DD1000-memory.dmp