Analysis

  • max time kernel
    88s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-01-2023 15:12

General

  • Target

    geek.exe

  • Size

    6.3MB

  • MD5

    234f314f904536e9ea73f52e1f0ffa13

  • SHA1

    430d72aad2930ef28d9270db87bb14260d3e613f

  • SHA256

    7142ba9a0a96e7184d8da2d5514d4416191494cc709f424f924ceb26332171ec

  • SHA512

    24c1e1b85486b49263ef4fdfc34f68f3b0f78f83da77e9a8fc0f8f27b51beaf25d70c64fd07c10e35a2593d359c742759a63c0ff985eea630c0588af96af49f0

  • SSDEEP

    98304:3qJbc5xtz+kl/m5lifMc/PKkuExnaZ/l+7Y1rtJKCg85:6Jk+y/mnifVKkbaZ/l+7Y1rtECg85

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\geek.exe
    "C:\Users\Admin\AppData\Local\Temp\geek.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4056
    • C:\Users\Admin\AppData\Local\Temp\geek64.exe
      C:\Users\Admin\AppData\Local\Temp\geek64.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:2656

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\geek64.exe

    Filesize

    3.5MB

    MD5

    2062e8118cf10d1fba19a80a885c80f0

    SHA1

    7e4a6fee0595832708b9cc9ee9b7d589f9c2bcc8

    SHA256

    316fbec9eca41deef9a63837dfaf4de4369ca507c5b2143cd3a805cb238e5057

    SHA512

    684533abd11842833a0a4bab308c5a06253307dd8f0297211624eb1acd36ade78bf85a19cf2c8f0cc0cf85593732ebd612d6c32ce49eff284ebd6d7e8aa922b2