Analysis

  • max time kernel
    151s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/10/2023, 14:50

General

  • Target

    Invoice#23615B001.exe

  • Size

    642KB

  • MD5

    2673a176c9729737316a6e6d660f0f79

  • SHA1

    f3466f9e8e6d1c9e9d22e6fe9e2ee601d9c22788

  • SHA256

    02971b038e3224fb89a5aa824cd4388ab3108e86571312d127e32b6a59b1b3ec

  • SHA512

    9e6d7703c8993e27b86bc5d4549e224db18176034e6d4331ab483dc187c77c543084cef2468a368a1dd48b0d678dc8f509ababb185b97d7756c426948442e958

  • SSDEEP

    12288:KayccWwjCUqEupAtlUpQSkHBkiyrhKwAKNdI0U+VRslA7jbA:0CdEupkl4RmkvyeI0TR17j

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

sn26

Decoy

resenha10.bet

gulshan-rajput.com

xbus.tech

z813my.cfd

wlxzjlny.cfd

auntengotiempo.com

canada-reservation.com

thegiftcompany.shop

esthersilveirapropiedades.com

1wapws.top

ymjblnvo.cfd

termokimik.net

kushiro-artist-school.com

bmmboo.com

caceresconstructionservices.com

kentuckywalkabout.com

bringyourcart.com

miamiwinetour.com

bobcatsocial.site

thirdmind.network

Signatures

  • Formbook

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

  • Formbook payload 5 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 46 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3180
    • C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
      "C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:4956
      • C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
        "{path}"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:1660
    • C:\Windows\SysWOW64\mstsc.exe
      "C:\Windows\SysWOW64\mstsc.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4140
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe"
        3⤵
          PID:3620

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/1660-14-0x0000000000400000-0x000000000042F000-memory.dmp

            Filesize

            188KB

          • memory/1660-24-0x0000000000F60000-0x0000000000F75000-memory.dmp

            Filesize

            84KB

          • memory/1660-23-0x0000000000400000-0x000000000042F000-memory.dmp

            Filesize

            188KB

          • memory/1660-20-0x0000000000EE0000-0x0000000000EF5000-memory.dmp

            Filesize

            84KB

          • memory/1660-19-0x0000000000400000-0x000000000042F000-memory.dmp

            Filesize

            188KB

          • memory/1660-17-0x00000000013E0000-0x000000000172A000-memory.dmp

            Filesize

            3.3MB

          • memory/3180-28-0x0000000008D90000-0x0000000008F36000-memory.dmp

            Filesize

            1.6MB

          • memory/3180-21-0x0000000008D90000-0x0000000008F36000-memory.dmp

            Filesize

            1.6MB

          • memory/3180-37-0x0000000009110000-0x000000000921B000-memory.dmp

            Filesize

            1.0MB

          • memory/3180-36-0x0000000009110000-0x000000000921B000-memory.dmp

            Filesize

            1.0MB

          • memory/3180-33-0x0000000009320000-0x0000000009445000-memory.dmp

            Filesize

            1.1MB

          • memory/3180-25-0x0000000009320000-0x0000000009445000-memory.dmp

            Filesize

            1.1MB

          • memory/4140-29-0x0000000000410000-0x000000000054A000-memory.dmp

            Filesize

            1.2MB

          • memory/4140-32-0x0000000000550000-0x000000000057F000-memory.dmp

            Filesize

            188KB

          • memory/4140-35-0x00000000023C0000-0x0000000002454000-memory.dmp

            Filesize

            592KB

          • memory/4140-31-0x0000000002520000-0x000000000286A000-memory.dmp

            Filesize

            3.3MB

          • memory/4140-30-0x0000000000550000-0x000000000057F000-memory.dmp

            Filesize

            188KB

          • memory/4140-26-0x0000000000410000-0x000000000054A000-memory.dmp

            Filesize

            1.2MB

          • memory/4956-0-0x00000000747A0000-0x0000000074F50000-memory.dmp

            Filesize

            7.7MB

          • memory/4956-13-0x0000000008C60000-0x0000000008CA8000-memory.dmp

            Filesize

            288KB

          • memory/4956-2-0x0000000005A20000-0x0000000005ABC000-memory.dmp

            Filesize

            624KB

          • memory/4956-1-0x0000000000FF0000-0x0000000001096000-memory.dmp

            Filesize

            664KB

          • memory/4956-11-0x0000000005D10000-0x0000000005D20000-memory.dmp

            Filesize

            64KB

          • memory/4956-4-0x0000000005B90000-0x0000000005C22000-memory.dmp

            Filesize

            584KB

          • memory/4956-12-0x00000000073A0000-0x000000000743A000-memory.dmp

            Filesize

            616KB

          • memory/4956-5-0x0000000005D10000-0x0000000005D20000-memory.dmp

            Filesize

            64KB

          • memory/4956-3-0x00000000060A0000-0x0000000006644000-memory.dmp

            Filesize

            5.6MB

          • memory/4956-16-0x00000000747A0000-0x0000000074F50000-memory.dmp

            Filesize

            7.7MB

          • memory/4956-7-0x0000000005C30000-0x0000000005C86000-memory.dmp

            Filesize

            344KB

          • memory/4956-10-0x00000000747A0000-0x0000000074F50000-memory.dmp

            Filesize

            7.7MB

          • memory/4956-6-0x0000000005AF0000-0x0000000005AFA000-memory.dmp

            Filesize

            40KB

          • memory/4956-9-0x0000000008BC0000-0x0000000008BCC000-memory.dmp

            Filesize

            48KB

          • memory/4956-8-0x0000000006650000-0x00000000069A4000-memory.dmp

            Filesize

            3.3MB