Analysis

  • max time kernel
    150s
  • max time network
    161s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    09-08-2021 08:10

General

  • Target

    SWIFT pdf.exe

  • Size

    606KB

  • MD5

    e56c9c4ab6dc95417d6c183365600548

  • SHA1

    9ef8b8825f0c4b1a655653bb4090fd0086d94cc6

  • SHA256

    4388d14cd19cb633714502e52d87743ba879eba3e33473e360350be55602c983

  • SHA512

    4e9fc00fab520a09f6c26378832530e3490a5f295d0b55e6e30733175bb306e38ab66d6e7aaf74f1c7d7531e512899859521beda9801d49943d2e9e7205aae81

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
  • Suspicious use of SetThreadContext 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 56 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 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:2680
    • C:\Users\Admin\AppData\Local\Temp\SWIFT pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\SWIFT pdf.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1852
      • C:\Windows\SysWOW64\logagent.exe
        C:\Windows\System32\logagent.exe
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:1240
    • 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:3292
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Windows\SysWOW64\logagent.exe"
        3⤵
          PID:1700

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1240-123-0x0000000000E60000-0x0000000000E74000-memory.dmp
      Filesize

      80KB

    • memory/1240-119-0x0000000000000000-mapping.dmp
    • memory/1240-121-0x0000000010410000-0x000000001043E000-memory.dmp
      Filesize

      184KB

    • memory/1240-120-0x00000000004B0000-0x00000000004B1000-memory.dmp
      Filesize

      4KB

    • memory/1240-122-0x0000000004680000-0x00000000049A0000-memory.dmp
      Filesize

      3.1MB

    • memory/1700-129-0x0000000000000000-mapping.dmp
    • memory/1852-116-0x0000000003930000-0x000000000397C000-memory.dmp
      Filesize

      304KB

    • memory/1852-114-0x0000000000540000-0x0000000000541000-memory.dmp
      Filesize

      4KB

    • memory/2680-124-0x0000000006DA0000-0x0000000006E81000-memory.dmp
      Filesize

      900KB

    • memory/2680-131-0x0000000006F10000-0x0000000006FD6000-memory.dmp
      Filesize

      792KB

    • memory/3292-125-0x0000000000000000-mapping.dmp
    • memory/3292-128-0x0000000004DA0000-0x00000000050C0000-memory.dmp
      Filesize

      3.1MB

    • memory/3292-127-0x00000000009B0000-0x00000000009DE000-memory.dmp
      Filesize

      184KB

    • memory/3292-130-0x0000000004C60000-0x0000000004CF3000-memory.dmp
      Filesize

      588KB

    • memory/3292-126-0x0000000000AF0000-0x0000000000DEC000-memory.dmp
      Filesize

      3.0MB