Analysis

  • max time kernel
    119s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-09-2024 13:56

General

  • Target

    6cb81d3fc345ce884fe28d9c4033f100N.exe

  • Size

    88KB

  • MD5

    6cb81d3fc345ce884fe28d9c4033f100

  • SHA1

    6f3428fb12b77ffad2346b3be7e154f22babc2b7

  • SHA256

    0df52dbd6954826bc66f7b0dfc8ce63fcbc7a513a5abc9b769fb3f34f5b6d4fc

  • SHA512

    1868d244c590f281fdc60ed468162c5c2dea7c83462118ed0b4f18d8845f5f1881294a33ac2cbbeba6b39d79d05094609ae0a24e2be28f3ed88970682e694ba2

  • SSDEEP

    768:vAG68qOJ+TtMBwHpFeh6gM1rA8dOsc7jUq4RkA5o3K1DfsvtzsXjLft+9o1mm:vAGHqlZMuLFjnAzA5o6BfItoXjLl0hm

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 27 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6cb81d3fc345ce884fe28d9c4033f100N.exe
    "C:\Users\Admin\AppData\Local\Temp\6cb81d3fc345ce884fe28d9c4033f100N.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1144
    • C:\Users\Admin\jolem.exe
      "C:\Users\Admin\jolem.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:4160

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\jolem.exe

    Filesize

    88KB

    MD5

    0c37926c6294419de668c40aabbd45e9

    SHA1

    21f9af3104172e47c7ba27bff3e473d11286a522

    SHA256

    d9ff721215952eec1bc9eb97363c5425f9fca11eccc0b1a63c55dbe6488b9512

    SHA512

    58198f2a6a34db6e8738b3f063f9882193d25fd6bc1f42cdecdbda9f63413cec5706c7a59e99575d3e253aecd0ba6b0175eb66dc950b0e6fa0b0bae491390e40