Analysis

  • max time kernel
    147s
  • max time network
    133s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    08-11-2021 10:15

General

  • Target

    orden de muestras de productos.exe

  • Size

    1.1MB

  • MD5

    a92473f407265b4c1b2638ceb245e7fa

  • SHA1

    52d386f4204a0c9f304f9dfcfe1f68380ee16451

  • SHA256

    ef2754157037c661f6acf043f9af565be640a4bf7cc569fd38ae605c919e60e3

  • SHA512

    05b79299e71ed4eb2654bdf90e8b37ca181a7910016a8a335e195ff1967e88539cf6b3b7b73141f46f40ef338a2ed11214ca5f7e4f20b5660631b0a938e7beda

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.

  • suricata: ET MALWARE FormBook CnC Checkin (GET)

    suricata: ET MALWARE FormBook CnC Checkin (GET)

  • Formbook Payload 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 54 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:3028
    • C:\Users\Admin\AppData\Local\Temp\orden de muestras de productos.exe
      "C:\Users\Admin\AppData\Local\Temp\orden de muestras de productos.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:2692
      • C:\Windows\SysWOW64\DpiScaling.exe
        C:\Windows\System32\DpiScaling.exe
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:2040
    • C:\Windows\SysWOW64\netsh.exe
      "C:\Windows\SysWOW64\netsh.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:520
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Windows\SysWOW64\DpiScaling.exe"
        3⤵
          PID:4084

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Modify Registry

    1
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/520-124-0x0000000000000000-mapping.dmp
    • memory/520-129-0x00000000034A0000-0x0000000003533000-memory.dmp
      Filesize

      588KB

    • memory/520-128-0x00000000037E0000-0x0000000003B00000-memory.dmp
      Filesize

      3.1MB

    • memory/520-127-0x0000000000D00000-0x0000000000D2E000-memory.dmp
      Filesize

      184KB

    • memory/520-126-0x0000000001380000-0x000000000139E000-memory.dmp
      Filesize

      120KB

    • memory/2040-121-0x00000000048E0000-0x0000000004C00000-memory.dmp
      Filesize

      3.1MB

    • memory/2040-122-0x0000000004670000-0x0000000004684000-memory.dmp
      Filesize

      80KB

    • memory/2040-119-0x0000000072480000-0x00000000724AE000-memory.dmp
      Filesize

      184KB

    • memory/2040-118-0x00000000028D0000-0x00000000028D1000-memory.dmp
      Filesize

      4KB

    • memory/2040-117-0x0000000000000000-mapping.dmp
    • memory/2692-115-0x00000000007B0000-0x00000000007B1000-memory.dmp
      Filesize

      4KB

    • memory/2692-116-0x00000000007D1000-0x00000000007E5000-memory.dmp
      Filesize

      80KB

    • memory/3028-123-0x0000000002690000-0x0000000002752000-memory.dmp
      Filesize

      776KB

    • memory/3028-130-0x0000000006100000-0x0000000006223000-memory.dmp
      Filesize

      1.1MB

    • memory/4084-125-0x0000000000000000-mapping.dmp