Analysis
- max time kernel
53s - max time network
80s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
16/12/2022, 08:40
General
- Target OOuMU2rNA6e7trM.exe
- Size 837KB
- Sample221216-kkwalshc2w
- SHA256 2106aa8235bc1e05d367bae1e65c50bf8d11c4b4106ceebde0f9307ffcf273c0
Malware Config
Extracted
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formbook
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bmr1
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q05YNsJC4MpYLGAf4A==
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6KUzKCvwX0fwzrFQXvlucw==
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KA4ZibW1w+hWN5Q=
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TfgNq18tIWtsM7h+DexncQ==
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zspNqjUKBdJVHTkiMMXJYeF7G53bVvMPoA==
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hopQr+b8KzPIbMWvw0Yxir6cyw==
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2thmt+17FR/MVsakbM/+w3xGOhopJw==
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5gO5gfA6jwna/4FNSPqrvvHyr2A=
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kqtr0wr9KaOXVMyDDexncQ==
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PNldyz0Boa5cLGAf4A==
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Gysor7fqabd0UzTwWp3Zir6cyw==
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pMRgV18gtLorB21prX4=
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ukpf+vu2u+hWN5Q=
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pcS/rO+KmPMj69G9cMHnoSEm59cbIQ==
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4fWGzv347bFNDYJeeIHKG5co
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WXlRyM2Yn+4Ab1EgRAFHWdGDCzf1
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ZPoM+2U1cwMzteOBsHY=
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o8jQoNron4sT3A/KomE=
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7QX8tTpv/A+YKw==
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wFvmV8SY/A+YKw==
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Suspicious use of SetThreadContext 3 IoCs
- Suspicious behavior: EnumeratesProcesses 12 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 9 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\OOuMU2rNA6e7trM.exe"C:\Users\Admin\AppData\Local\Temp\OOuMU2rNA6e7trM.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\OOuMU2rNA6e7trM.exe"C:\Users\Admin\AppData\Local\Temp\OOuMU2rNA6e7trM.exe"3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\msdt.exe"C:\Windows\SysWOW64\msdt.exe"2⤵
- 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
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Downloads
memory/2180-132-0x0000000000190000-0x0000000000268000-memory.dmp
memory/2180-133-0x0000000005130000-0x00000000056D4000-memory.dmp
memory/2180-134-0x0000000004C20000-0x0000000004CB2000-memory.dmp
memory/2180-135-0x0000000004DB0000-0x0000000004DBA000-memory.dmp
memory/2180-136-0x00000000075F0000-0x000000000768C000-memory.dmp
memory/2384-138-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2384-140-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2384-141-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2384-142-0x0000000000401000-0x000000000042F000-memory.dmp
memory/2384-143-0x00000000014F0000-0x000000000183A000-memory.dmp
memory/2384-144-0x0000000001030000-0x0000000001040000-memory.dmp
memory/3036-145-0x0000000002FA0000-0x000000000306F000-memory.dmp
memory/3400-148-0x0000000000E50000-0x0000000000E7D000-memory.dmp
memory/3400-147-0x0000000000060000-0x00000000000B7000-memory.dmp
memory/3400-149-0x0000000002F20000-0x000000000326A000-memory.dmp