Analysis

  • max time kernel
    150s
  • max time network
    135s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    06-05-2021 08:12

General

  • Target

    new order.exe

  • Size

    225KB

  • MD5

    5c24de06380c0c24db91bb3ab6eeace3

  • SHA1

    74de5b1eac0982786136b4ecb4bc664bd9d26636

  • SHA256

    b3c5b3cf581d15fcbacf67b4bdba199bfe7089704875746109b3206eb07b99e2

  • SHA512

    1ae9df468dbcaa9c1838fc4327d488843941e18e84affbdfd1d86d0b20f16c360853eff4373049e5628ee55c4e20da445dacc65c1fc4d3df56812b04733bc75b

Malware Config

Extracted

Family

formbook

Version

4.1

C2

http://www.knighttechinca.com/dxe/

Decoy

sardarfarm.com

959tremont.com

privat-livecam.net

ansel-homebakery.com

joysupermarket.com

peninsulamatchmakers.net

northsytyle.com

radioconexaoubermusic.com

relocatingrealtor.com

desyrnan.com

onlinehoortoestel.online

enpointe.online

rvvikings.com

paulpoirier.com

shitarpa.net

kerneis.net

rokitreach.com

essentiallygaia.com

prestiged.net

fuerzaagavera.com

Signatures

  • Formbook

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

  • Formbook Payload 2 IoCs
  • Deletes itself 1 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 31 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1276
    • C:\Users\Admin\AppData\Local\Temp\new order.exe
      "C:\Users\Admin\AppData\Local\Temp\new order.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1944
      • C:\Users\Admin\AppData\Local\Temp\new order.exe
        "C:\Users\Admin\AppData\Local\Temp\new order.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:1272
    • C:\Windows\SysWOW64\cmmon32.exe
      "C:\Windows\SysWOW64\cmmon32.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:664
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\new order.exe"
        3⤵
        • Deletes itself
        PID:804

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\nsi8383.tmp\fiq3i6.dll

    MD5

    11955007c9dd82171650f0b0f5a5103f

    SHA1

    fd41b1d885975db292d2c5a0e271f884f8868ddb

    SHA256

    c98f6514cdd9f453b87f53db4b77282d067e78e30c39a5dc731cc8e70dbac1c1

    SHA512

    cc521deb22844b2082bc47034948031b76f4fa698f15961bc016604c71834104f5fbdb058cbe2ab7b4d7676a4af12c1873db36a56979c4ad02912385ab4bdbc4

  • memory/664-67-0x0000000000000000-mapping.dmp

  • memory/664-72-0x0000000001D90000-0x0000000001E23000-memory.dmp

    Filesize

    588KB

  • memory/664-71-0x0000000001F20000-0x0000000002223000-memory.dmp

    Filesize

    3.0MB

  • memory/664-68-0x0000000000290000-0x000000000029D000-memory.dmp

    Filesize

    52KB

  • memory/664-69-0x0000000000080000-0x00000000000AE000-memory.dmp

    Filesize

    184KB

  • memory/804-70-0x0000000000000000-mapping.dmp

  • memory/1272-65-0x0000000000360000-0x0000000000374000-memory.dmp

    Filesize

    80KB

  • memory/1272-64-0x0000000000900000-0x0000000000C03000-memory.dmp

    Filesize

    3.0MB

  • memory/1272-63-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/1272-61-0x000000000041EAF0-mapping.dmp

  • memory/1276-66-0x0000000004050000-0x0000000004139000-memory.dmp

    Filesize

    932KB

  • memory/1276-73-0x0000000006F60000-0x00000000070EF000-memory.dmp

    Filesize

    1.6MB

  • memory/1944-59-0x00000000760B1000-0x00000000760B3000-memory.dmp

    Filesize

    8KB

  • memory/1944-62-0x00000000003E0000-0x00000000003E2000-memory.dmp

    Filesize

    8KB