Analysis

  • max time kernel
    147s
  • max time network
    168s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    31-08-2021 15:51

General

  • Target

    обÑ_азцы пÑ_одукции заказать pdf.exe

  • Size

    559KB

  • MD5

    f750108de86e79c14390ac0661a67b87

  • SHA1

    d83e517431a18b4fbe0d477ec980e08b3d57bf1c

  • SHA256

    de73d97fc56e19954fbec37b94bc65014305cc288b71ae6889bf37ac193c0333

  • SHA512

    f0b2a919ae68a1aab25901662d5a240620030093f87c3e7e3262822c5b085b88d9039cb594ff7c94e38072c4803b0b3beff5f15e651cd92824752df27820d761

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

n7ak

C2

http://www.kmresults.com/n7ak/

Decoy

modischoolcbse.com

theneverwinter.com

rszkjx-vps-hosting.website

fnihil.com

1pbet.com

nnowzscorrez.com

uaotgvjl.icu

starmapsqatar.com

ekisilani.com

extradeepsheets.com

jam-nins.com

buranly.com

orixentertainment.com

rawtech.energy

myol.guru

utex.club

jiapie.com

wowig.store

wweidlyyl.com

systaskautomation.com

Signatures

  • Formbook

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

  • Formbook Payload 3 IoCs
  • Deletes itself 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.

  • 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 26 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1220
    • C:\Users\Admin\AppData\Local\Temp\обÑ_азцы пÑ_одукции заказать pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\обÑ_азцы пÑ_одукции заказать pdf.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2020
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FmsSuTN" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8A26.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:792
      • C:\Users\Admin\AppData\Local\Temp\обÑ_азцы пÑ_одукции заказать pdf.exe
        "{path}"
        3⤵
          PID:1468
        • C:\Users\Admin\AppData\Local\Temp\обÑ_азцы пÑ_одукции заказать pdf.exe
          "{path}"
          3⤵
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          PID:544
      • 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:852
        • C:\Windows\SysWOW64\cmd.exe
          /c del "C:\Users\Admin\AppData\Local\Temp\обÑ_азцы пÑ_одукции заказать pdf.exe"
          3⤵
          • Deletes itself
          PID:1888

    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

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp8A26.tmp
      MD5

      58139132315c2225669c0cfd5737f866

      SHA1

      e62ff4995d441e36d1e19d68fb67178584f68d4c

      SHA256

      c32462f1d1bcdffc9cf931eee037e478e29471fb173038720ce794788a0c93ba

      SHA512

      a1b967241ca46fa1459758e1f9b04bfd30edc7c0c24a3534fe737cd5bd90982effa4866b13f4f978106f27ef491257bc2d9fddbd75abcaf0c70e2af04594b0c8

    • memory/544-70-0x0000000000B50000-0x0000000000E53000-memory.dmp
      Filesize

      3.0MB

    • memory/544-71-0x0000000000190000-0x00000000001A4000-memory.dmp
      Filesize

      80KB

    • memory/544-69-0x000000000041ECE0-mapping.dmp
    • memory/544-68-0x0000000000400000-0x000000000042E000-memory.dmp
      Filesize

      184KB

    • memory/792-66-0x0000000000000000-mapping.dmp
    • memory/852-75-0x00000000000D0000-0x00000000000FE000-memory.dmp
      Filesize

      184KB

    • memory/852-80-0x00000000754F1000-0x00000000754F3000-memory.dmp
      Filesize

      8KB

    • memory/852-78-0x00000000009B0000-0x0000000000A43000-memory.dmp
      Filesize

      588KB

    • memory/852-77-0x0000000002170000-0x0000000002473000-memory.dmp
      Filesize

      3.0MB

    • memory/852-73-0x0000000000000000-mapping.dmp
    • memory/852-74-0x0000000000D20000-0x0000000000D66000-memory.dmp
      Filesize

      280KB

    • memory/1220-79-0x0000000006F60000-0x0000000007089000-memory.dmp
      Filesize

      1.2MB

    • memory/1220-72-0x0000000003B80000-0x0000000003C70000-memory.dmp
      Filesize

      960KB

    • memory/1888-76-0x0000000000000000-mapping.dmp
    • memory/2020-60-0x0000000000AB0000-0x0000000000AB1000-memory.dmp
      Filesize

      4KB

    • memory/2020-62-0x00000000003E0000-0x00000000003E1000-memory.dmp
      Filesize

      4KB

    • memory/2020-63-0x00000000003C0000-0x00000000003CE000-memory.dmp
      Filesize

      56KB

    • memory/2020-64-0x0000000000520000-0x00000000005B2000-memory.dmp
      Filesize

      584KB

    • memory/2020-65-0x0000000004780000-0x00000000047C3000-memory.dmp
      Filesize

      268KB