Analysis
- max time kernel
147s - max time network
142s - platform
windows7_x64 - resource
win7-en-20211104 - submitted
23/11/2021, 19:55
General
- Target DHL_119040 documento de recibo de la compra,pdf.exe
- Size 324KB
- Sample211123-ym4xesecf4
- SHA256 d96040239b3b2251bbe2e9aeb3f00cfef3917b6427ce2b42260bb437351e6476
Malware Config
Extracted
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formbook
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4.1
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c1h5
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http://www.coralxlix.com/c1h5/
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ui4dev.com
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horrycountyrealtor.com
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abivz.icu
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toxicwokeness.com
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fillthegap.site
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surprisessinside.com
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metaversefinder.xyz
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freeshipflowers.com
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apacheicon.com
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greenfootprintpros.com
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topauonlinecasino.com
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weqffg.site
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bountylux.com
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eedrvheyn.sbs
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whiskeybentmobile.com
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yupeg.xyz
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thenorthwesthome.com
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cyril.ventures
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zukunsmart.com
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1l7kng51j4nm.site
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook Payload 3 IoCs
- Deletes itself 1 IoCs
- Loads dropped DLL 1 IoCs
- Suspicious use of SetThreadContext 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 30 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 2 IoCs
- Suspicious use of SendNotifyMessage 2 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\DHL_119040 documento de recibo de la compra,pdf.exe"C:\Users\Admin\AppData\Local\Temp\DHL_119040 documento de recibo de la compra,pdf.exe"2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\DHL_119040 documento de recibo de la compra,pdf.exe"C:\Users\Admin\AppData\Local\Temp\DHL_119040 documento de recibo de la compra,pdf.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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-
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C:\Windows\SysWOW64\help.exe"C:\Windows\SysWOW64\help.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\DHL_119040 documento de recibo de la compra,pdf.exe"3⤵
- Deletes itself
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/580-68-0x0000000000610000-0x00000000006A3000-memory.dmp
memory/580-66-0x0000000000800000-0x0000000000B03000-memory.dmp
memory/580-65-0x0000000000080000-0x00000000000AF000-memory.dmp
memory/580-64-0x00000000001D0000-0x00000000001D6000-memory.dmp
memory/1212-62-0x0000000007980000-0x0000000007B0F000-memory.dmp
memory/1212-69-0x0000000008960000-0x0000000008AC7000-memory.dmp
memory/1544-61-0x00000000002D0000-0x00000000002E4000-memory.dmp
memory/1544-60-0x0000000000800000-0x0000000000B03000-memory.dmp
memory/1544-57-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1992-55-0x0000000075D01000-0x0000000075D03000-memory.dmp