Analysis

  • max time kernel
    151s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    06-05-2021 08:11

General

  • Target

    new order.exe

  • Size

    226KB

  • MD5

    98aeda5516413b7a6213680385f91f90

  • SHA1

    7065a8d97a5f29159f161dd184eedcf81e53c0d4

  • SHA256

    e47fa9824fd9f5f8e8b42fb02f53cfbf57b7c784d54c9e76ed247a9d297835cf

  • SHA512

    1d95a5f1b99a0061e8905919ed38d91855512f546c7287d04a27b705bc0b4ba8308de356777b37a61f8d0f295f4f2540eec4b7752acb66197a9c746b6a908155

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 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 30 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 7 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:1196
    • 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:1268
      • 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:1964
    • C:\Windows\SysWOW64\NAPSTAT.EXE
      "C:\Windows\SysWOW64\NAPSTAT.EXE"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1284
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\new order.exe"
        3⤵
        • Deletes itself
        PID:1012

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\nssFBDD.tmp\dlea4x9g.dll

    MD5

    89540f3124362fd0527f3bfbb2aa5f4a

    SHA1

    b32173300d930224f21c575d9e43eac95d74c166

    SHA256

    f441faf04a7ee611eb0869150ff775a3406de2c4c7484ea433ca5846ee960de8

    SHA512

    991c210c290a14704224002a742402eaba2dc844692e89ea8dd02d2c5ebcb5a808fd2d3815f12db52ca3bbf5dec83dbe8befff3771dc2c4f11538d5ba80b4eb0

  • memory/1012-70-0x0000000000000000-mapping.dmp

  • memory/1196-75-0x0000000003E10000-0x0000000003EB4000-memory.dmp

    Filesize

    656KB

  • memory/1196-66-0x00000000049B0000-0x0000000004AAB000-memory.dmp

    Filesize

    1004KB

  • memory/1196-68-0x0000000004D70000-0x0000000004E93000-memory.dmp

    Filesize

    1.1MB

  • memory/1268-61-0x00000000003D0000-0x00000000003D2000-memory.dmp

    Filesize

    8KB

  • memory/1268-59-0x0000000075591000-0x0000000075593000-memory.dmp

    Filesize

    8KB

  • memory/1284-71-0x0000000000810000-0x0000000000856000-memory.dmp

    Filesize

    280KB

  • memory/1284-74-0x0000000000860000-0x00000000008F3000-memory.dmp

    Filesize

    588KB

  • memory/1284-73-0x0000000001FF0000-0x00000000022F3000-memory.dmp

    Filesize

    3.0MB

  • memory/1284-72-0x00000000000D0000-0x00000000000FE000-memory.dmp

    Filesize

    184KB

  • memory/1284-69-0x0000000000000000-mapping.dmp

  • memory/1964-63-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/1964-67-0x0000000000320000-0x0000000000334000-memory.dmp

    Filesize

    80KB

  • memory/1964-65-0x00000000002E0000-0x00000000002F4000-memory.dmp

    Filesize

    80KB

  • memory/1964-64-0x0000000000840000-0x0000000000B43000-memory.dmp

    Filesize

    3.0MB

  • memory/1964-62-0x000000000041EAF0-mapping.dmp