Analysis

  • max time kernel
    162s
  • max time network
    184s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    13-10-2021 16:05

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 18 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1272
    • 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:2004
      • 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:1668
    • C:\Windows\SysWOW64\control.exe
      "C:\Windows\SysWOW64\control.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1696
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\OAa3nu595dA7afB.exe"
        3⤵
        • Deletes itself
        PID:1176

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/1176-76-0x0000000000000000-mapping.dmp
  • memory/1272-81-0x0000000007DE0000-0x0000000007F63000-memory.dmp
    Filesize

    1.5MB

  • memory/1272-73-0x0000000006970000-0x0000000006A74000-memory.dmp
    Filesize

    1.0MB

  • memory/1668-71-0x0000000000AF0000-0x0000000000DF3000-memory.dmp
    Filesize

    3.0MB

  • memory/1668-72-0x0000000000170000-0x0000000000185000-memory.dmp
    Filesize

    84KB

  • memory/1668-66-0x0000000000400000-0x000000000042F000-memory.dmp
    Filesize

    188KB

  • memory/1668-67-0x0000000000400000-0x000000000042F000-memory.dmp
    Filesize

    188KB

  • memory/1668-68-0x0000000000400000-0x000000000042F000-memory.dmp
    Filesize

    188KB

  • memory/1668-69-0x000000000041F200-mapping.dmp
  • memory/1696-74-0x0000000000000000-mapping.dmp
  • memory/1696-77-0x0000000000FD0000-0x0000000000FEF000-memory.dmp
    Filesize

    124KB

  • memory/1696-78-0x00000000000C0000-0x00000000000EF000-memory.dmp
    Filesize

    188KB

  • memory/1696-79-0x0000000000C10000-0x0000000000F13000-memory.dmp
    Filesize

    3.0MB

  • memory/1696-80-0x0000000000600000-0x0000000000694000-memory.dmp
    Filesize

    592KB

  • memory/2004-65-0x00000000056B0000-0x0000000005726000-memory.dmp
    Filesize

    472KB

  • memory/2004-64-0x0000000000360000-0x0000000000365000-memory.dmp
    Filesize

    20KB

  • memory/2004-60-0x0000000000A60000-0x0000000000A61000-memory.dmp
    Filesize

    4KB

  • memory/2004-63-0x0000000004CB0000-0x0000000004CB1000-memory.dmp
    Filesize

    4KB

  • memory/2004-62-0x0000000075D51000-0x0000000075D53000-memory.dmp
    Filesize

    8KB