Analysis

  • max time kernel
    165s
  • max time network
    197s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    13-10-2021 10:50

General

  • Target

    OAa3nu595dA7afB.exe

  • Size

    553KB

  • MD5

    1823dce627d29f5d4985501267f7ad9f

  • SHA1

    1ce10042fccf2c8fcb2b0a93723f24b6c3b4ffb3

  • SHA256

    c14ba2023f89dc57df157690e40042b8b090906257c59b6e5834b2212cd3142e

  • SHA512

    88421fa99979a5ed7d55a2dccffbb96af3e72539e5dba61bf7860d2321a2f79deb5e9aae65e3fb9e5a17998a60d87abbbdc7b0dc495c991b4a3813a2ef8edb72

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
  • Deletes itself 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 17 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1220
    • C:\Users\Admin\AppData\Local\Temp\OAa3nu595dA7afB.exe
      "C:\Users\Admin\AppData\Local\Temp\OAa3nu595dA7afB.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1996
      • C:\Users\Admin\AppData\Local\Temp\OAa3nu595dA7afB.exe
        "C:\Users\Admin\AppData\Local\Temp\OAa3nu595dA7afB.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:1672
    • C:\Windows\SysWOW64\autofmt.exe
      "C:\Windows\SysWOW64\autofmt.exe"
      2⤵
        PID:560
      • C:\Windows\SysWOW64\autofmt.exe
        "C:\Windows\SysWOW64\autofmt.exe"
        2⤵
          PID:1032
        • C:\Windows\SysWOW64\systray.exe
          "C:\Windows\SysWOW64\systray.exe"
          2⤵
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:908
          • C:\Windows\SysWOW64\cmd.exe
            /c del "C:\Users\Admin\AppData\Local\Temp\OAa3nu595dA7afB.exe"
            3⤵
            • Deletes itself
            PID:1012

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/908-79-0x00000000006B0000-0x0000000000744000-memory.dmp
        Filesize

        592KB

      • memory/908-78-0x00000000021A0000-0x00000000024A3000-memory.dmp
        Filesize

        3.0MB

      • memory/908-77-0x0000000000080000-0x00000000000AF000-memory.dmp
        Filesize

        188KB

      • memory/908-76-0x0000000000380000-0x0000000000385000-memory.dmp
        Filesize

        20KB

      • memory/908-74-0x0000000000000000-mapping.dmp
      • memory/1012-75-0x0000000000000000-mapping.dmp
      • memory/1220-73-0x00000000076D0000-0x0000000007875000-memory.dmp
        Filesize

        1.6MB

      • memory/1220-80-0x0000000004A20000-0x0000000004B0E000-memory.dmp
        Filesize

        952KB

      • memory/1672-69-0x000000000041F200-mapping.dmp
      • memory/1672-72-0x0000000000130000-0x0000000000145000-memory.dmp
        Filesize

        84KB

      • memory/1672-71-0x0000000000AD0000-0x0000000000DD3000-memory.dmp
        Filesize

        3.0MB

      • memory/1672-68-0x0000000000400000-0x000000000042F000-memory.dmp
        Filesize

        188KB

      • memory/1672-67-0x0000000000400000-0x000000000042F000-memory.dmp
        Filesize

        188KB

      • memory/1672-66-0x0000000000400000-0x000000000042F000-memory.dmp
        Filesize

        188KB

      • memory/1996-60-0x00000000008B0000-0x00000000008B1000-memory.dmp
        Filesize

        4KB

      • memory/1996-65-0x00000000054F0000-0x0000000005566000-memory.dmp
        Filesize

        472KB

      • memory/1996-64-0x00000000004D0000-0x00000000004D5000-memory.dmp
        Filesize

        20KB

      • memory/1996-63-0x0000000004810000-0x0000000004811000-memory.dmp
        Filesize

        4KB

      • memory/1996-62-0x00000000754F1000-0x00000000754F3000-memory.dmp
        Filesize

        8KB