Analysis

  • max time kernel
    150s
  • max time network
    138s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • 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 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 62 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2756
    • 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:3540
      • 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:1380
    • C:\Windows\SysWOW64\control.exe
      "C:\Windows\SysWOW64\control.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2484
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\new order.exe"
        3⤵
          PID:3508

    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\nsw23CB.tmp\fiq3i6.dll
      MD5

      11955007c9dd82171650f0b0f5a5103f

      SHA1

      fd41b1d885975db292d2c5a0e271f884f8868ddb

      SHA256

      c98f6514cdd9f453b87f53db4b77282d067e78e30c39a5dc731cc8e70dbac1c1

      SHA512

      cc521deb22844b2082bc47034948031b76f4fa698f15961bc016604c71834104f5fbdb058cbe2ab7b4d7676a4af12c1873db36a56979c4ad02912385ab4bdbc4

    • memory/1380-119-0x0000000000480000-0x000000000052E000-memory.dmp
      Filesize

      696KB

    • memory/1380-116-0x000000000041EAF0-mapping.dmp
    • memory/1380-117-0x0000000000400000-0x000000000042E000-memory.dmp
      Filesize

      184KB

    • memory/1380-118-0x0000000000A30000-0x0000000000D50000-memory.dmp
      Filesize

      3.1MB

    • memory/2484-124-0x0000000002830000-0x000000000285E000-memory.dmp
      Filesize

      184KB

    • memory/2484-121-0x0000000000000000-mapping.dmp
    • memory/2484-123-0x00000000002C0000-0x00000000002E0000-memory.dmp
      Filesize

      128KB

    • memory/2484-125-0x00000000045B0000-0x00000000048D0000-memory.dmp
      Filesize

      3.1MB

    • memory/2484-126-0x0000000004380000-0x0000000004413000-memory.dmp
      Filesize

      588KB

    • memory/2756-120-0x0000000004C50000-0x0000000004D5C000-memory.dmp
      Filesize

      1.0MB

    • memory/2756-127-0x0000000004D60000-0x0000000004E97000-memory.dmp
      Filesize

      1.2MB

    • memory/3508-122-0x0000000000000000-mapping.dmp
    • memory/3540-115-0x0000000002350000-0x0000000002352000-memory.dmp
      Filesize

      8KB