Analysis

  • max time kernel
    148s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    13-10-2021 10:01

General

  • Target

    OAa3nu595dA7afB.exe

  • Size

    553KB

  • MD5

    1823dce627d29f5d4985501267f7ad9f

  • SHA1

    1ce10042fccf2c8fcb2b0a93723f24b6c3b4ffb3

  • SHA256

    c14ba2023f89dc57df157690e40042b8b090906257c59b6e5834b2212cd3142e

  • SHA512

    88421fa99979a5ed7d55a2dccffbb96af3e72539e5dba61bf7860d2321a2f79deb5e9aae65e3fb9e5a17998a60d87abbbdc7b0dc495c991b4a3813a2ef8edb72

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

dn7r

C2

http://www.yourherogarden.net/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.

  • suricata: ET MALWARE FormBook CnC Checkin (GET)

    suricata: ET MALWARE FormBook CnC Checkin (GET)

  • Formbook Payload 3 IoCs
  • Deletes itself 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 23 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1264
    • C:\Users\Admin\AppData\Local\Temp\OAa3nu595dA7afB.exe
      "C:\Users\Admin\AppData\Local\Temp\OAa3nu595dA7afB.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1172
      • C:\Users\Admin\AppData\Local\Temp\OAa3nu595dA7afB.exe
        "C:\Users\Admin\AppData\Local\Temp\OAa3nu595dA7afB.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:472
    • 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:1464
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\OAa3nu595dA7afB.exe"
        3⤵
        • Deletes itself
        PID:1812

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/472-61-0x0000000000400000-0x000000000042F000-memory.dmp
    Filesize

    188KB

  • memory/472-66-0x0000000000150000-0x0000000000165000-memory.dmp
    Filesize

    84KB

  • memory/472-65-0x00000000008D0000-0x0000000000BD3000-memory.dmp
    Filesize

    3.0MB

  • memory/472-62-0x0000000000400000-0x000000000042F000-memory.dmp
    Filesize

    188KB

  • memory/472-63-0x000000000041F200-mapping.dmp
  • memory/472-60-0x0000000000400000-0x000000000042F000-memory.dmp
    Filesize

    188KB

  • memory/1172-59-0x0000000005180000-0x00000000051F6000-memory.dmp
    Filesize

    472KB

  • memory/1172-54-0x0000000000210000-0x0000000000211000-memory.dmp
    Filesize

    4KB

  • memory/1172-58-0x00000000002F0000-0x00000000002F5000-memory.dmp
    Filesize

    20KB

  • memory/1172-57-0x0000000004E50000-0x0000000004E51000-memory.dmp
    Filesize

    4KB

  • memory/1172-56-0x0000000075821000-0x0000000075823000-memory.dmp
    Filesize

    8KB

  • memory/1264-67-0x0000000005F90000-0x00000000060D2000-memory.dmp
    Filesize

    1.3MB

  • memory/1264-74-0x0000000004A20000-0x0000000004AC6000-memory.dmp
    Filesize

    664KB

  • memory/1464-68-0x0000000000000000-mapping.dmp
  • memory/1464-70-0x00000000016F0000-0x000000000170B000-memory.dmp
    Filesize

    108KB

  • memory/1464-72-0x0000000000B60000-0x0000000000E63000-memory.dmp
    Filesize

    3.0MB

  • memory/1464-71-0x00000000000C0000-0x00000000000EF000-memory.dmp
    Filesize

    188KB

  • memory/1464-73-0x0000000000510000-0x00000000005A4000-memory.dmp
    Filesize

    592KB

  • memory/1812-69-0x0000000000000000-mapping.dmp