Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-10-2023 13:51

General

  • Target

    Jefutyl.exe

  • Size

    84KB

  • MD5

    823791a9bfed88b3af85698e8f019254

  • SHA1

    506803fd5335f75862e0ea271716a6e97cd66b13

  • SHA256

    58b525579968cba0c68e8f7ae12e51e0b5542acc2c14a2e75fa6df44556e373f

  • SHA512

    40f3dfc08ba7868b1d6310418fc799ea6266e3d70ee098d1ab77213eb4451578a316de0f347101b5b83ac393a793442cd748f8ced56dac71c4de607c0f07da26

  • SSDEEP

    1536:zhu9D+Oy/Dn/hP8PGTzBwZ6YWKSO5T3rZvSwEKSK99jzpma:zhu9WL/hEPeGU5S5TbZawEKSK99jVH

Malware Config

Signatures

  • Phemedrone

    An information and wallet stealer written in C#.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious behavior: EnumeratesProcesses 27 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Jefutyl.exe
    "C:\Users\Admin\AppData\Local\Temp\Jefutyl.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1396
  • C:\Windows\system32\wbem\WmiApSrv.exe
    C:\Windows\system32\wbem\WmiApSrv.exe
    1⤵
      PID:4432

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1396-0-0x0000000000440000-0x000000000045C000-memory.dmp

      Filesize

      112KB

    • memory/1396-1-0x00007FFFABFA0000-0x00007FFFACA61000-memory.dmp

      Filesize

      10.8MB

    • memory/1396-2-0x000000001B220000-0x000000001B230000-memory.dmp

      Filesize

      64KB

    • memory/1396-3-0x00007FFFABFA0000-0x00007FFFACA61000-memory.dmp

      Filesize

      10.8MB

    • memory/1396-4-0x000000001B220000-0x000000001B230000-memory.dmp

      Filesize

      64KB

    • memory/1396-6-0x00007FFFABFA0000-0x00007FFFACA61000-memory.dmp

      Filesize

      10.8MB