Overview

overview

7

Static

static

1

4a5881510b...81.exe

windows7-x64

7

4a5881510b...81.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    0s
  • max time network
    129s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/01/2024, 03:42

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General

  • Target
    4a5881510b389c117ceefd6ebd7ac781.exe
  • Size 1.8MB
  • Sample240108-d9k3lsbee7
  • SHA256 e24e506c5f0e94aff89f5623a3d948aaaf9a1a511656793dc9937cfe04e36ba1
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10
discoverypersistence

Malware Config

Signatures

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 7 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Checks installed software on the system 1 TTPs

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

    discovery
  • Drops file in Program Files directory 64 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4a5881510b389c117ceefd6ebd7ac781.exe
    "C:\Users\Admin\AppData\Local\Temp\4a5881510b389c117ceefd6ebd7ac781.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1964
    • C:\Users\Admin\AppData\Local\Temp\T8SETUP.EXE
      "C:\Users\Admin\AppData\Local\Temp\T8SETUP.EXE" /p=XQ/n="DictionaryBoss"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Drops file in Program Files directory
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:1568
  • C:\PROGRA~2\DICTIO~1\bar\1.bin\v4barsvc.exe
    "C:\PROGRA~2\DICTIO~1\bar\1.bin\v4barsvc.exe" -install
    1⤵
    • Executes dropped EXE
    PID:3992
  • C:\Program Files (x86)\DictionaryBoss\bar\1.bin\v4HighIn.exe
    "C:\Program Files (x86)\DictionaryBoss\bar\1.bin\v4HighIn.exe" v4tpinst.dll,#5
    1⤵
      PID:4560
    • C:\PROGRA~2\DICTIO~1\bar\1.bin\v4barsvc.exe
      C:\PROGRA~2\DICTIO~1\bar\1.bin\v4barsvc.exe
      1⤵
        PID:1656
      • C:\PROGRA~2\DICTIO~1\bar\1.bin\v4brmon.exe
        "C:\PROGRA~2\DICTIO~1\bar\1.bin\v4brmon.exe"
        1⤵
          PID:2328
        • C:\PROGRA~2\DICTIO~1\bar\1.bin\v4barsvc.exe
          "C:\PROGRA~2\DICTIO~1\bar\1.bin\v4barsvc.exe" -remove
          1⤵
          • Executes dropped EXE
          PID:5100
        • C:\PROGRA~2\DICTIO~1\bar\1.bin\v4srchmn.exe
          "C:\PROGRA~2\DICTIO~1\bar\1.bin\v4srchmn.exe" /m=2 /w /h /r
          1⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetWindowsHookEx
          PID:3808

        Network

              MITRE ATT&CK Enterprise v15

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              Downloads

              memory/1568-177-0x00000000034B0000-0x000000000355B000-memory.dmp
              Download