Analysis

  • max time kernel
    149s
  • max time network
    135s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    28-10-2021 12:59

General

  • Target

    Nouvel ordre.exe

  • Size

    443KB

  • MD5

    4a61f81dbaa9b5ea6c3092f3db446d28

  • SHA1

    51157d0665111e06b7a3267952cc4b1a99e0a1cf

  • SHA256

    fe1d08713fdfde2e85f5da0e2ba784481a692c5fbd1298b6ed4936eaf0d42e81

  • SHA512

    feb7ccbe69e870782d0e77fd81f5bb451e8d0df8992a54c7f248575faf26fc2453021fbd485e6a1fcdc7cd197d5b694e6f33816422dd8f8115bf341851d92c73

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

dn7r

C2

http://www.yourherogarden.net/dn7r/

Decoy

eventphotographerdfw.com

thehalalcoinstaking.com

philipfaziofineart.com

intercoh.com

gaiaseyephotography.com

chatbotforrealestate.com

lovelancemg.com

marlieskasberger.com

elcongoenespanol.info

lepirecredit.com

distribution-concept.com

e99game.com

exit11festival.com

twodollartoothbrushclub.com

cocktailsandlawn.com

performimprove.network

24horas-telefono-11840.com

cosmossify.com

kellenleote.com

perovskite.energy

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
  • 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 60 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:2872
    • C:\Users\Admin\AppData\Local\Temp\Nouvel ordre.exe
      "C:\Users\Admin\AppData\Local\Temp\Nouvel ordre.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:2856
      • C:\Users\Admin\AppData\Local\Temp\Nouvel ordre.exe
        "C:\Users\Admin\AppData\Local\Temp\Nouvel ordre.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:3896
    • C:\Windows\SysWOW64\cscript.exe
      "C:\Windows\SysWOW64\cscript.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3440
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\Nouvel ordre.exe"
        3⤵
          PID:1016

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • \Users\Admin\AppData\Local\Temp\nsjDB4E.tmp\rlfw.dll
      MD5

      18c00088f81c94a4a8bbdbdaead3499f

      SHA1

      900e26def38cf36e375c45617c3f15f1b74712d2

      SHA256

      5958f961c7706e1bfac20779e52bae7be4f271f9fb0259c84973ecdadfcbeeed

      SHA512

      b740360ee046270cad4be28d28c27876b5063c2a73ff22060a19d9e8dcbf5616e63ba9b26325d618ba8c5cacdfd18a3a9a151ca2404bc6d3017d10ee09e0afb4

    • memory/1016-126-0x0000000000000000-mapping.dmp
    • memory/2872-121-0x0000000004AE0000-0x0000000004C8C000-memory.dmp
      Filesize

      1.7MB

    • memory/2872-128-0x0000000000450000-0x00000000004F9000-memory.dmp
      Filesize

      676KB

    • memory/3440-125-0x00000000046C0000-0x00000000049E0000-memory.dmp
      Filesize

      3.1MB

    • memory/3440-122-0x0000000000000000-mapping.dmp
    • memory/3440-123-0x0000000000DC0000-0x0000000000DE7000-memory.dmp
      Filesize

      156KB

    • memory/3440-124-0x0000000000540000-0x000000000056F000-memory.dmp
      Filesize

      188KB

    • memory/3440-127-0x0000000004420000-0x00000000044B4000-memory.dmp
      Filesize

      592KB

    • memory/3896-120-0x0000000000CF0000-0x0000000000D05000-memory.dmp
      Filesize

      84KB

    • memory/3896-119-0x0000000000990000-0x0000000000CB0000-memory.dmp
      Filesize

      3.1MB

    • memory/3896-117-0x000000000041F200-mapping.dmp
    • memory/3896-116-0x0000000000400000-0x000000000042F000-memory.dmp
      Filesize

      188KB