Analysis

  • max time kernel
    149s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    25-12-2024 14:43

General

  • Target

    PDF 86812376724_PO.exe

  • Size

    561KB

  • MD5

    28fdba7295380d922ef4db0deda34705

  • SHA1

    69a33211d1b5b375e886bfb2ab2eadad79e1f61c

  • SHA256

    95935a1ae37717226eb2b3d7c53a97cdabe5e9b28d370237f7badef2820ff29b

  • SHA512

    664244459e0da68779b567ea297909169b2f9f9852d1664c8b18bfdc239b4342723cee2b21c4fd631cee9ef2e37354368a19ada74af34db9fb4319b1be684ca3

  • SSDEEP

    12288:iP2oEhUMrM7FX/SdjY3ZrL26hnkKVJxgkI+:iuzUMrYXaBKX1kKVEkI

Malware Config

Extracted

Family

remcos

Version

2.7.0 Pro

Botnet

AAAAAAAAAAA

C2

incidencias6645.ddns.net:8638

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-Y8P2FO

  • 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

    wikipedia;solitaire;

Signatures

  • ModiLoader, DBatLoader

    ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

  • Modiloader family
  • Remcos

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

  • Remcos family
  • ModiLoader Second Stage 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
  • 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 use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PDF 86812376724_PO.exe
    "C:\Users\Admin\AppData\Local\Temp\PDF 86812376724_PO.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2116
    • C:\Program Files (x86)\internet explorer\ieinstal.exe
      "C:\Program Files (x86)\internet explorer\ieinstal.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:2148

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\remcos\logs.dat

    Filesize

    74B

    MD5

    9c3bddbd7712fced5522006f05f69f63

    SHA1

    23e4ca871f64cb3a072910cca3d687b70c6c042b

    SHA256

    05f8caabc992099ab8397e8ae6f2a057f8ae4e2f8cf4513e4d5bb7e99d1d5ac5

    SHA512

    9c5ceaa474c400056645489d1aac8f0c1644a45dfdc00a97d5dafc9d83cc720101a21660c3ed2da5bc3d25f23ce3ca33a22943dd16bffa5adaef5faaf48dfb73

  • memory/2116-56-0x0000000010540000-0x0000000010564000-memory.dmp

    Filesize

    144KB

  • memory/2116-2-0x0000000000220000-0x0000000000221000-memory.dmp

    Filesize

    4KB

  • memory/2116-1-0x0000000000400000-0x0000000000492000-memory.dmp

    Filesize

    584KB

  • memory/2116-3-0x0000000000400000-0x0000000000492000-memory.dmp

    Filesize

    584KB

  • memory/2116-27-0x0000000004B70000-0x0000000004BC6000-memory.dmp

    Filesize

    344KB

  • memory/2116-35-0x0000000010540000-0x0000000010564000-memory.dmp

    Filesize

    144KB

  • memory/2116-0-0x0000000000220000-0x0000000000221000-memory.dmp

    Filesize

    4KB

  • memory/2148-69-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/2148-75-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/2148-36-0x0000000000090000-0x0000000000091000-memory.dmp

    Filesize

    4KB

  • memory/2148-63-0x0000000000240000-0x0000000000241000-memory.dmp

    Filesize

    4KB

  • memory/2148-65-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/2148-66-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/2148-42-0x00000000000D0000-0x00000000000D1000-memory.dmp

    Filesize

    4KB

  • memory/2148-70-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/2148-71-0x0000000010540000-0x0000000010564000-memory.dmp

    Filesize

    144KB

  • memory/2148-73-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/2148-74-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/2148-57-0x0000000010540000-0x0000000010564000-memory.dmp

    Filesize

    144KB

  • memory/2148-78-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/2148-81-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/2148-84-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/2148-37-0x0000000000090000-0x0000000000091000-memory.dmp

    Filesize

    4KB

  • memory/2148-87-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/2148-90-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/2148-93-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/2148-97-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/2148-100-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/2148-103-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB