Analysis

  • max time kernel
    146s
  • max time network
    140s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    27-01-2022 14:27

General

  • Target

    6c649004f8b888d4c72ce40cc8e0b722c545093d949b36507fd4a77ebfcbab89.exe

  • Size

    9.8MB

  • MD5

    d6377909699a6a022d422028c9f4f3e2

  • SHA1

    86f72055b86de2a61b51779f75ac2c30a88416a7

  • SHA256

    6c649004f8b888d4c72ce40cc8e0b722c545093d949b36507fd4a77ebfcbab89

  • SHA512

    8d3e071e4259bfd48d7f5b2157b1d0c57ab93ad9749e42845938a4e27e9e07dd1c85c8e31b73c00ea79f0c8d1a599300b7c56a3be2045673fd7c421f27d2bbbc

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

hoefeynacia.xyz:2299

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-I8SK9W

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

  • take_screenshot_title

    notepad;solitaire;

Signatures

  • Babadeda

    Babadeda is a crypter delivered as a legitimate installer and used to drop other malware families.

  • Babadeda Crypter 2 IoCs
  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 23 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Detects BABADEDA Crypter 2 IoCs

    Detects BABADEDA Crypter.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6c649004f8b888d4c72ce40cc8e0b722c545093d949b36507fd4a77ebfcbab89.exe
    "C:\Users\Admin\AppData\Local\Temp\6c649004f8b888d4c72ce40cc8e0b722c545093d949b36507fd4a77ebfcbab89.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1616
    • C:\Users\Admin\AppData\Local\Temp\is-ARSTO.tmp\6c649004f8b888d4c72ce40cc8e0b722c545093d949b36507fd4a77ebfcbab89.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-ARSTO.tmp\6c649004f8b888d4c72ce40cc8e0b722c545093d949b36507fd4a77ebfcbab89.tmp" /SL5="$4014E,9445066,826880,C:\Users\Admin\AppData\Local\Temp\6c649004f8b888d4c72ce40cc8e0b722c545093d949b36507fd4a77ebfcbab89.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1612
      • C:\Users\Admin\AppData\Roaming\Auslogics File Recovery\mspdbcmf.exe
        "C:\Users\Admin\AppData\Roaming\Auslogics File Recovery\mspdbcmf.exe"
        3⤵
        • Executes dropped EXE
        PID:888
      • C:\Users\Admin\AppData\Roaming\Auslogics File Recovery\link.exe
        "C:\Users\Admin\AppData\Roaming\Auslogics File Recovery\link.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetWindowsHookEx
        PID:1364

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1364-108-0x0000000005E10000-0x0000000005E8B000-memory.dmp

    Filesize

    492KB

  • memory/1364-114-0x0000000008170000-0x000000000D270000-memory.dmp

    Filesize

    81.0MB

  • memory/1612-62-0x0000000000240000-0x0000000000241000-memory.dmp

    Filesize

    4KB

  • memory/1612-61-0x0000000000720000-0x0000000000860000-memory.dmp

    Filesize

    1.2MB

  • memory/1612-63-0x00000000746C1000-0x00000000746C3000-memory.dmp

    Filesize

    8KB

  • memory/1616-55-0x0000000075F81000-0x0000000075F83000-memory.dmp

    Filesize

    8KB

  • memory/1616-56-0x0000000000400000-0x00000000004D7000-memory.dmp

    Filesize

    860KB