Analysis

  • max time kernel
    148s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    28-06-2022 09:45

General

  • Target

    cc3b22bd3d92f8209de3a45f1b49b05d.exe

  • Size

    854KB

  • MD5

    cc3b22bd3d92f8209de3a45f1b49b05d

  • SHA1

    46f5d875d74b9dc5f4519b6aff1efdf62df70c73

  • SHA256

    e10cbd14bad3693345f6fa7d09e1336c1b2033900e1b1b55ccf0a76a98b1c79a

  • SHA512

    81eef9b07333b31a8016986f15a6ad519e77643bab1f2c557a5bea4014e1626702854c5c180c883c517ecaebd8a1a823da63d2533e7f9f73c0b8a1d7fd4612cf

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ba17

Decoy

bearwant.com

sdsguanfang.com

steamcommunityvia.top

sugarplumtreasures.com

koronislakefishing.com

jmae.xyz

xhxnqemkiqe.xyz

playzcrew.com

zatwsbq.com

lankofix.com

sh-zhepeng.com

mibodamisxv.online

butterflyjewelry.store

finestrecitalto-spottoday.info

globomateria.com

royalmdarts.com

d4af10836709.com

shepwill.com

67aldrich.info

trustedmakers.club

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 4 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 51 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:744
    • C:\Users\Admin\AppData\Local\Temp\cc3b22bd3d92f8209de3a45f1b49b05d.exe
      "C:\Users\Admin\AppData\Local\Temp\cc3b22bd3d92f8209de3a45f1b49b05d.exe"
      2⤵
      • Checks computer location settings
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3536
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OHyOwWfiz" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC170.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:488
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "{path}"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:2516
    • C:\Windows\SysWOW64\autoconv.exe
      "C:\Windows\SysWOW64\autoconv.exe"
      2⤵
        PID:920
      • C:\Windows\SysWOW64\autoconv.exe
        "C:\Windows\SysWOW64\autoconv.exe"
        2⤵
          PID:1572
        • C:\Windows\SysWOW64\autoconv.exe
          "C:\Windows\SysWOW64\autoconv.exe"
          2⤵
            PID:64
          • C:\Windows\SysWOW64\wlanext.exe
            "C:\Windows\SysWOW64\wlanext.exe"
            2⤵
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:1072
            • C:\Windows\SysWOW64\cmd.exe
              /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
              3⤵
                PID:3876

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Execution

          Scheduled Task

          1
          T1053

          Persistence

          Scheduled Task

          1
          T1053

          Privilege Escalation

          Scheduled Task

          1
          T1053

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          2
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\tmpC170.tmp
            Filesize

            1KB

            MD5

            18c6fe1cf0392e7b519095c446474d26

            SHA1

            ef20f8c11f4d912df962972edc5ce27ad61cc034

            SHA256

            dd0ee6b4852d275bc50ae0aa9ce1ba19211817249c976af5f1dec165699c08b5

            SHA512

            4590ad224a212f1c729509774cf4b436a74bb6bde67f9630bee8e4c4889f305b4d16ed6e1062b4e1b417161913fb3e15cd23db1357962aa1753dedd6a4b03e6f

          • memory/488-135-0x0000000000000000-mapping.dmp
          • memory/744-153-0x0000000003090000-0x0000000003140000-memory.dmp
            Filesize

            704KB

          • memory/744-151-0x0000000003090000-0x0000000003140000-memory.dmp
            Filesize

            704KB

          • memory/744-149-0x0000000002D20000-0x0000000002EB7000-memory.dmp
            Filesize

            1.6MB

          • memory/744-143-0x0000000002D20000-0x0000000002EB7000-memory.dmp
            Filesize

            1.6MB

          • memory/1072-145-0x0000000000C00000-0x0000000000C17000-memory.dmp
            Filesize

            92KB

          • memory/1072-144-0x0000000000000000-mapping.dmp
          • memory/1072-152-0x0000000000CF0000-0x0000000000D1F000-memory.dmp
            Filesize

            188KB

          • memory/1072-150-0x0000000001280000-0x0000000001314000-memory.dmp
            Filesize

            592KB

          • memory/1072-148-0x0000000001390000-0x00000000016DA000-memory.dmp
            Filesize

            3.3MB

          • memory/1072-146-0x0000000000CF0000-0x0000000000D1F000-memory.dmp
            Filesize

            188KB

          • memory/2516-142-0x0000000001010000-0x0000000001025000-memory.dmp
            Filesize

            84KB

          • memory/2516-137-0x0000000000000000-mapping.dmp
          • memory/2516-141-0x00000000012F0000-0x000000000163A000-memory.dmp
            Filesize

            3.3MB

          • memory/2516-140-0x0000000000400000-0x000000000042F000-memory.dmp
            Filesize

            188KB

          • memory/2516-138-0x0000000000400000-0x000000000042F000-memory.dmp
            Filesize

            188KB

          • memory/3536-134-0x0000000005680000-0x000000000568A000-memory.dmp
            Filesize

            40KB

          • memory/3536-130-0x0000000000B60000-0x0000000000C3C000-memory.dmp
            Filesize

            880KB

          • memory/3536-133-0x0000000005710000-0x00000000057AC000-memory.dmp
            Filesize

            624KB

          • memory/3536-132-0x00000000055D0000-0x0000000005662000-memory.dmp
            Filesize

            584KB

          • memory/3536-131-0x0000000005B80000-0x0000000006124000-memory.dmp
            Filesize

            5.6MB

          • memory/3876-147-0x0000000000000000-mapping.dmp