Analysis

  • max time kernel
    130s
  • max time network
    166s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    24/03/2022, 09:35

General

  • Target
    9326cb1f30e786f29ca93604a290116d.exe
  • Size 997KB
  • Sample220324-lke43abgap
  • SHA256 e073516efee850dda1e008bcd82c3160cb867dda001bec42d76f6aa6af82a257
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • formbook

Version
  • 4.1

Campaign
  • gh6c

Decoy
  • onlinesuppershopbd.xyz

  • shbd666k.com

  • nephrodialysis.com

  • why88.top

  • babouceesay.com

  • imgur.online

  • sistemasap.com

  • whwes.com

  • tw74m0gdcr.xyz

  • cantaregrupoinmobiliario.com

  • risiko-nein-danke.com

  • interfacejazz.com

  • rcde.cat

  • xxjcrj.com

  • moonboat.pro

  • simpcraft.club

  • keylockrepair.com

  • landslending.com

  • pocytochos.top

  • tooozi.com

Signatures

  • Formbook

    Formbook is a data stealing malware which is capable of stealing data.

  • Formbook Payload 1 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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9326cb1f30e786f29ca93604a290116d.exe
    "C:\Users\Admin\AppData\Local\Temp\9326cb1f30e786f29ca93604a290116d.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks computer location settings
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1528
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\9326cb1f30e786f29ca93604a290116d.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:912
    • C:\Users\Admin\AppData\Local\Temp\9326cb1f30e786f29ca93604a290116d.exe
      "C:\Users\Admin\AppData\Local\Temp\9326cb1f30e786f29ca93604a290116d.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:2984

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/912-148-0x0000000006160000-0x000000000617E000-memory.dmp

        memory/912-152-0x0000000007130000-0x00000000071C6000-memory.dmp

        memory/912-155-0x00000000071D0000-0x00000000071D8000-memory.dmp

        memory/912-154-0x00000000071F0000-0x000000000720A000-memory.dmp

        memory/912-153-0x00000000070E0000-0x00000000070EE000-memory.dmp

        memory/912-151-0x0000000006F20000-0x0000000006F2A000-memory.dmp

        memory/912-137-0x0000000004620000-0x0000000004656000-memory.dmp

        memory/912-138-0x0000000004DE0000-0x0000000005408000-memory.dmp

        memory/912-150-0x0000000006EB0000-0x0000000006ECA000-memory.dmp

        memory/912-149-0x0000000007500000-0x0000000007B7A000-memory.dmp

        memory/912-141-0x0000000004AF0000-0x0000000004B12000-memory.dmp

        memory/912-144-0x0000000005BB0000-0x0000000005BCE000-memory.dmp

        memory/912-142-0x0000000005410000-0x0000000005476000-memory.dmp

        memory/912-147-0x0000000071070000-0x00000000710BC000-memory.dmp

        memory/912-145-0x00000000047A5000-0x00000000047A7000-memory.dmp

        memory/912-146-0x0000000006B50000-0x0000000006B82000-memory.dmp

        memory/1528-130-0x0000000000BB0000-0x0000000000CAE000-memory.dmp

        memory/1528-131-0x0000000005DA0000-0x0000000006344000-memory.dmp

        memory/1528-136-0x0000000009810000-0x0000000009876000-memory.dmp

        memory/1528-134-0x0000000009240000-0x00000000092DC000-memory.dmp

        memory/1528-133-0x0000000005650000-0x000000000565A000-memory.dmp

        memory/1528-132-0x00000000056B0000-0x0000000005742000-memory.dmp

        memory/2984-140-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/2984-143-0x0000000001A20000-0x0000000001D6A000-memory.dmp