Analysis

  • max time kernel
    149s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/08/2024, 21:12

General

  • Target

    observer (4)07.exe

  • Size

    380KB

  • MD5

    371e14f7e146ff22cb9ebe2f78cbfb7f

  • SHA1

    2fde663b31a46e83f3034464674ad3f3a85f6972

  • SHA256

    bb17d47f10fefcee4c883f93f2989e753b969298dd70262ae00696dd482dc9b4

  • SHA512

    457cb7d4056200a4bcde4390d411e7f886e8b2fb00aef3d15d68b22c5d09bff74eeca9b241a6e69252a1e91acdaa97c23904ef8bbd5f6d6d3f852233a89c1eab

  • SSDEEP

    3072:D7g6EFujqoyCdr5vWh6fPpyuvFU4F+fHRfAGdtq6mDBVz8gJeRvqol4c4QqVo+Po:Hg6EFYdNOhN5N63h8gCr4bQcPfIu3Rpm

Malware Config

Extracted

Family

observer

C2

http://5.42.66.25:3000

Signatures

  • Observer

    Observer is an infostealer written in C++.

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\observer (4)07.exe
    "C:\Users\Admin\AppData\Local\Temp\observer (4)07.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    PID:4380
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4380 -s 1216
      2⤵
      • Program crash
      PID:4456
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4380 -ip 4380
    1⤵
      PID:1096

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4380-0-0x0000000002080000-0x00000000020C4000-memory.dmp

      Filesize

      272KB

    • memory/4380-5-0x0000000002080000-0x00000000020C4000-memory.dmp

      Filesize

      272KB