Analysis
- max time kernel
150s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
02/01/2023, 17:37
General
- Target X4Tu5IWZiaomy5r.exe
- Size 680KB
- Sample230102-v65raafa43
- SHA256 b61654d4440ff18d10ad8a7425493946063c79e233aef6e97d8b6c20d092bda2
Malware Config
Extracted
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formbook
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4.1
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ft63
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kontadocl.com
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aldonsupply.com
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heirloomtreasure.com
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lojadeteste.online
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huyy888.com
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brandten.club
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learnmanualtesting.com
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elginworks.com
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laurasells239.com
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deathmono.com
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aflora.biz
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bnbpromarkets.com
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parhitproperties.net
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wavemail.africa
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kolagaames.com
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hunkygifts.com
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anyprofi.ru
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byhbcf.cfd
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lonaturalreviews.com
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fiduciaone.com
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook payload 4 IoCs
- Blocklisted process makes network request 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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.
- Suspicious behavior: EnumeratesProcesses 50 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 6 IoCs
- Suspicious use of WriteProcessMemory 18 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\X4Tu5IWZiaomy5r.exe"C:\Users\Admin\AppData\Local\Temp\X4Tu5IWZiaomy5r.exe"2⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\kFfBVx.exe"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kFfBVx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp271.tmp"3⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\X4Tu5IWZiaomy5r.exe"C:\Users\Admin\AppData\Local\Temp\X4Tu5IWZiaomy5r.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\SysWOW64\rundll32.exe"2⤵
- Blocklisted process makes network request
- 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\X4Tu5IWZiaomy5r.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
tmp271.tmp
memory/1464-160-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1464-150-0x0000000001280000-0x0000000001295000-memory.dmp
memory/1464-149-0x00000000016E0000-0x0000000001A2A000-memory.dmp
memory/1464-142-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2348-151-0x0000000008400000-0x000000000852F000-memory.dmp
memory/2348-169-0x0000000002FD0000-0x000000000308A000-memory.dmp
memory/2348-171-0x0000000002FD0000-0x000000000308A000-memory.dmp
memory/2620-155-0x00000000075F0000-0x0000000007C6A000-memory.dmp
memory/2620-152-0x0000000006270000-0x00000000062A2000-memory.dmp
memory/2620-144-0x0000000004BF0000-0x0000000004C12000-memory.dmp
memory/2620-145-0x0000000004E90000-0x0000000004EF6000-memory.dmp
memory/2620-146-0x0000000005030000-0x0000000005096000-memory.dmp
memory/2620-148-0x0000000005CA0000-0x0000000005CBE000-memory.dmp
memory/2620-143-0x0000000005140000-0x0000000005768000-memory.dmp
memory/2620-167-0x00000000072D0000-0x00000000072D8000-memory.dmp
memory/2620-158-0x0000000007230000-0x00000000072C6000-memory.dmp
memory/2620-153-0x0000000070CC0000-0x0000000070D0C000-memory.dmp
memory/2620-154-0x0000000006250000-0x000000000626E000-memory.dmp
memory/2620-139-0x0000000002370000-0x00000000023A6000-memory.dmp
memory/2620-156-0x0000000006FB0000-0x0000000006FCA000-memory.dmp
memory/2620-166-0x00000000072F0000-0x000000000730A000-memory.dmp
memory/2620-165-0x00000000071E0000-0x00000000071EE000-memory.dmp
memory/2620-157-0x0000000007020000-0x000000000702A000-memory.dmp
memory/2644-162-0x0000000000120000-0x0000000000134000-memory.dmp
memory/2644-163-0x0000000000F40000-0x0000000000F6F000-memory.dmp
memory/2644-164-0x00000000030A0000-0x00000000033EA000-memory.dmp
memory/2644-168-0x0000000002F10000-0x0000000002FA4000-memory.dmp
memory/2644-170-0x0000000000F40000-0x0000000000F6F000-memory.dmp
memory/2764-133-0x0000000005920000-0x0000000005EC4000-memory.dmp
memory/2764-136-0x0000000009500000-0x000000000959C000-memory.dmp
memory/2764-132-0x00000000009E0000-0x0000000000A90000-memory.dmp
memory/2764-134-0x0000000005370000-0x0000000005402000-memory.dmp
memory/2764-135-0x00000000052F0000-0x00000000052FA000-memory.dmp