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Analysis

  • max time kernel
    146s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    07/01/2025, 08:23

General

  • Target

    $PLUGINSDIR/xjujmofosc.dll

  • Size

    19KB

  • MD5

    ac0ac6a7d57e4fd3137b57ea17e15178

  • SHA1

    36f461a0cbc6a4561b08668c43e461b30dc462b8

  • SHA256

    b1d82a6fc8574306088346d467e59094a3ed933de4de3e4f7703664c34a84f82

  • SHA512

    31e39ca8118a3161f83c545241be617685992f09353daafbefaa16117b047b2eeb6ef0eb904957d02e93dfbbd46783d7c0d408dad62349f29cff53704e56b280

  • SSDEEP

    384:itICC1G8JstE8o/lkKU+VThlVTtAHTmicG:8ICC1LJTL97QTQ

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

dn7r

Decoy

eventphotographerdfw.com

thehalalcoinstaking.com

philipfaziofineart.com

intercoh.com

gaiaseyephotography.com

chatbotforrealestate.com

lovelancemg.com

marlieskasberger.com

elcongoenespanol.info

lepirecredit.com

distribution-concept.com

e99game.com

exit11festival.com

twodollartoothbrushclub.com

cocktailsandlawn.com

performimprove.network

24horas-telefono-11840.com

cosmossify.com

kellenleote.com

perovskite.energy

Signatures

  • Formbook

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

  • Formbook family
  • Formbook payload 3 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 31 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1204
    • C:\Windows\system32\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\xjujmofosc.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1732
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\xjujmofosc.dll,#1
        3⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1736
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\xjujmofosc.dll,#1
          4⤵
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          PID:1220
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\SysWOW64\rundll32.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1496
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Windows\SysWOW64\rundll32.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2296

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1204-6-0x0000000004EC0000-0x0000000004FA4000-memory.dmp

    Filesize

    912KB

  • memory/1204-12-0x0000000004EC0000-0x0000000004FA4000-memory.dmp

    Filesize

    912KB

  • memory/1220-1-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/1220-2-0x00000000020A0000-0x00000000023A3000-memory.dmp

    Filesize

    3.0MB

  • memory/1220-5-0x0000000000240000-0x0000000000255000-memory.dmp

    Filesize

    84KB

  • memory/1220-4-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/1496-10-0x0000000000280000-0x000000000028E000-memory.dmp

    Filesize

    56KB

  • memory/1496-8-0x0000000000280000-0x000000000028E000-memory.dmp

    Filesize

    56KB

  • memory/1496-7-0x0000000000280000-0x000000000028E000-memory.dmp

    Filesize

    56KB

  • memory/1496-11-0x0000000000090000-0x00000000000BF000-memory.dmp

    Filesize

    188KB

  • memory/1736-0-0x0000000010005000-0x0000000010007000-memory.dmp

    Filesize

    8KB